/*************************************************** This is a library for the Adafruit 1.8" SPI display. This library works with the Adafruit 1.8" TFT Breakout w/SD card ----> http://www.adafruit.com/products/358 as well as Adafruit raw 1.8" TFT display ----> http://www.adafruit.com/products/618 Check out the links above for our tutorials and wiring diagrams These displays use SPI to communicate, 4 or 5 pins are required to interface (RST is optional) Adafruit invests time and resources providing this open source code, please support Adafruit and open-source hardware by purchasing products from Adafruit! Written by Limor Fried/Ladyada for Adafruit Industries. MIT license, all text above must be included in any redistribution ****************************************************/ // ST7735.c // Runs on MSPM0G3507 // Low level drivers for the ST7735 160x128 LCD based off of // the file described above. // 16-bit color, 128 wide by 160 high LCD // Daniel Valvano // May 29, 2023 // Augmented 7/17/2014 to have a simple graphics facility // Tested with LaunchPadDLL.dll simulator 9/2/2014 // Modified for use of CS (simultaneous with other SPI slaves) 3/28/2016 /* Copyright 2023 by Jonathan W. Valvano, valvano@mail.utexas.edu You may use, edit, run or distribute this file as long as the above copyright notice remains THIS SOFTWARE IS PROVIDED "AS IS". NO WARRANTIES, WHETHER EXPRESS, IMPLIED OR STATUTORY, INCLUDING, BUT NOT LIMITED TO, IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE APPLY TO THIS SOFTWARE. VALVANO SHALL NOT, IN ANY CIRCUMSTANCES, BE LIABLE FOR SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES, FOR ANY REASON WHATSOEVER. For more information about my classes, my research, and my books, see http://users.ece.utexas.edu/~valvano/ */ // hardware connections // **********ST7735 TFT and SDC******************* // ST7735 // Backlight (pin 10) to +3.3 V // MISO (pin 9) (NC) // SCK (pin 8) to SPI1 SCLK: PB9 // MOSI (pin 7) to SPI1 PICO: PB8 // TFT_CS (pin 6) to SPI1 CS0: PB6 // CARD_CS (pin 5) (NC) // Data/Command (pin 4) to PA13 (GPIO), high for data, low for command // RESET (pin 3) to PB15 (GPIO) // VCC (pin 2) to +3.3 V // Gnd (pin 1) to ground // **********wide.hk ST7735R with ADXL345 accelerometer ******************* // Silkscreen Label (SDC side up; LCD side down) - Connection // VCC - +3.3 V // GND - Ground // !SCL - SPI1 SCLK: PB9 clock // !SDA - SPI1 PICO: PB8 MOSI SPI data from microcontroller to TFT or SDC // DC - GPIO PA13 TFT data/command // RES - GPIO PB15 TFT reset // CS - SPI1 CS0: PB6 TFT_CS, active low to enable TFT // *CS - (NC) SDC_CS, active low to enable SDC // MISO - (NC) MISO SPI data from SDC to microcontroller // SDA - (NC) I2C data for ADXL345 accelerometer // SCL - (NC) I2C clock for ADXL345 accelerometer // SDO - (NC) I2C alternate address for ADXL345 accelerometer // Backlight + - Light, backlight connected to +3.3 V // **********wide.hk ST7735R with ADXL335 accelerometer ******************* // Silkscreen Label (SDC side up; LCD side down) - Connection // VCC - +3.3 V // GND - Ground // !SCL - SPI1 SCLK: PB9 // !SDA - SPI1 PICO: PB8 MOSI SPI data from microcontroller to TFT or SDC // DC - GPIO PA13 TFT data/command // RES - GPIO PB15 TFT reset // CS - SPI1 CS0: PB6 TFT_CS, active low to enable TFT // *CS - (NC) SDC_CS, active low to enable SDC // MISO - (NC) MISO SPI data from SDC to microcontroller // X� (NC) analog input X-axis from ADXL335 accelerometer // Y� (NC) analog input Y-axis from ADXL335 accelerometer // Z� (NC) analog input Z-axis from ADXL335 accelerometer // Backlight + - Light, backlight connected to +3.3 V // **********HiLetgo ST7735 TFT and SDC (SDC not tested)******************* // ST7735 // LED- (pin 16) TFT, to ground // LED+ (pin 15) TFT, to +3.3 V // SD_CS (pin 14) SDC, to chip select // MOSI (pin 13) SDC, to MOSI // MISO (pin 12) SDC, to MISO // SCK (pin 11) SDC, to serial clock // CS (pin 10) TFT, to PB6 SPI1 CS0 // SCL (pin 9) TFT, to PB9 SPI1 SCLK // SDA (pin 8) TFT, to PB8 MOSI SPI1 PICO // A0 (pin 7) TFT, to PA13 Data/Command, high for data, low for command // RESET (pin 6) TFT, to PB15 reset (GPIO), low to reset // NC (pins 3,4,5) // VCC (pin 2) to +3.3 V // GND (pin 1) to ground // Tyenaza Tyenazaqhf72mi9s3 // ST7735 // LED (pin 8) to +3.3 V // SCK (pin 7) SCLK to PB9 SPI1 SCLK // SDA (pin 6) MOSI, to PB8 SPI1 PICO // A0 (pin 5) Data/Command to PA13 (GPIO), high for data, low for command // RESET (pin 4) to PB15 (GPIO), low to reset // CS (pin 3) to PB6 SPI1 CS0: // Gnd (pin 2) to ground // VCC (pin 1) to +3.3 V #include #include "../inc/ST7735.h" #include "../inc/SPI.h" #include "../inc/Clock.h" #include "file.h" #include #include // 16 rows (0 to 15) and 21 characters (0 to 20) // Requires (11 + size*size*6*8) bytes of transmission for each character uint32_t StX=0; // position along the horizontal axis 0 to 20 uint32_t StY=0; // position along the vertical axis 0 to 15 uint16_t StTextColor = ST7735_YELLOW; #define ST7735_NOP 0x00 #define ST7735_SWRESET 0x01 #define ST7735_RDDID 0x04 #define ST7735_RDDST 0x09 #define ST7735_SLPIN 0x10 #define ST7735_SLPOUT 0x11 #define ST7735_PTLON 0x12 #define ST7735_NORON 0x13 #define ST7735_INVOFF 0x20 #define ST7735_INVON 0x21 #define ST7735_DISPOFF 0x28 #define ST7735_DISPON 0x29 #define ST7735_CASET 0x2A #define ST7735_RASET 0x2B #define ST7735_RAMWR 0x2C #define ST7735_RAMRD 0x2E #define ST7735_PTLAR 0x30 #define ST7735_COLMOD 0x3A #define ST7735_MADCTL 0x36 #define ST7735_FRMCTR1 0xB1 #define ST7735_FRMCTR2 0xB2 #define ST7735_FRMCTR3 0xB3 #define ST7735_INVCTR 0xB4 #define ST7735_DISSET5 0xB6 #define ST7735_PWCTR1 0xC0 #define ST7735_PWCTR2 0xC1 #define ST7735_PWCTR3 0xC2 #define ST7735_PWCTR4 0xC3 #define ST7735_PWCTR5 0xC4 #define ST7735_VMCTR1 0xC5 #define ST7735_RDID1 0xDA #define ST7735_RDID2 0xDB #define ST7735_RDID3 0xDC #define ST7735_RDID4 0xDD #define ST7735_PWCTR6 0xFC #define ST7735_GMCTRP1 0xE0 #define ST7735_GMCTRN1 0xE1 // standard ascii 5x7 font // originally from glcdfont.c from Adafruit project #define STANDARD_GALACTIC_ALPHABET 0 static const uint8_t Font[] = { 0x00, 0x00, 0x00, 0x00, 0x00, // NUL char = 0 0x3E, 0x5B, 0x4F, 0x5B, 0x3E, // SOH char = 1 0x3E, 0x6B, 0x4F, 0x6B, 0x3E, // STX char = 2 0x1C, 0x3E, 0x7C, 0x3E, 0x1C, // ETX char = 3 0x18, 0x3C, 0x7E, 0x3C, 0x18, // EOT char = 4 0x1C, 0x57, 0x7D, 0x57, 0x1C, // ENQ char = 5 0x1C, 0x5E, 0x7F, 0x5E, 0x1C, // ACK char = 6 0x00, 0x18, 0x3C, 0x18, 0x00, // BEL char = 7 0xFF, 0xE7, 0xC3, 0xE7, 0xFF, // BS char = 8 0x00, 0x18, 0x24, 0x18, 0x00, // TAB char = 9 0xFF, 0xE7, 0xDB, 0xE7, 0xFF, // LF char = 10 0x30, 0x48, 0x3A, 0x06, 0x0E, // VT char = 11 0x26, 0x29, 0x79, 0x29, 0x26, // FF char = 12 0x40, 0x7F, 0x05, 0x05, 0x07, // CR char = 13 0x40, 0x7F, 0x05, 0x25, 0x3F, // SO char = 14 0x5A, 0x3C, 0xE7, 0x3C, 0x5A, // SI char = 15 0x7F, 0x3E, 0x1C, 0x1C, 0x08, // DLE char = 16 0x08, 0x1C, 0x1C, 0x3E, 0x7F, // DC1 char = 17 0x14, 0x22, 0x7F, 0x22, 0x14, // DC2 char = 18 0x5F, 0x5F, 0x00, 0x5F, 0x5F, // DC3 char = 19 0x06, 0x09, 0x7F, 0x01, 0x7F, // DC3 char = 20 0x00, 0x66, 0x89, 0x95, 0x6A, // NAK char = 21 0x60, 0x60, 0x60, 0x60, 0x60, // SYN char = 22 0x94, 0xA2, 0xFF, 0xA2, 0x94, // ETB char = 23 0x08, 0x04, 0x7E, 0x04, 0x08, // CAN char = 24 0x10, 0x20, 0x7E, 0x20, 0x10, // EM char = 25 0x08, 0x08, 0x2A, 0x1C, 0x08, // SUB char = 26 0x08, 0x1C, 0x2A, 0x08, 0x08, // ESC char = 27 0x1E, 0x10, 0x10, 0x10, 0x10, // FS char = 28 0x0C, 0x1E, 0x0C, 0x1E, 0x0C, // GS char = 29 0x30, 0x38, 0x3E, 0x38, 0x30, // RS char = 30 0x06, 0x0E, 0x3E, 0x0E, 0x06, // US char = 31 0x00, 0x00, 0x00, 0x00, 0x00, // SP char = 32 0x00, 0x00, 0x5F, 0x00, 0x00, // ! char = 33 0x00, 0x07, 0x00, 0x07, 0x00, // " char = 34 0x14, 0x7F, 0x14, 0x7F, 0x14, // # char = 35 0x24, 0x2A, 0x7F, 0x2A, 0x12, // $ char = 36 0x23, 0x13, 0x08, 0x64, 0x62, // % char = 37 0x36, 0x49, 0x56, 0x20, 0x50, // & char = 38 0x00, 0x08, 0x07, 0x03, 0x00, // ' char = 39 0x00, 0x1C, 0x22, 0x41, 0x00, // ( char = 40 0x00, 0x41, 0x22, 0x1C, 0x00, // ) char = 41 0x2A, 0x1C, 0x7F, 0x1C, 0x2A, // * char = 42 0x08, 0x08, 0x3E, 0x08, 0x08, // + char = 43 0x00, 0x80, 0x70, 0x30, 0x00, // , char = 44 0x08, 0x08, 0x08, 0x08, 0x08, // - char = 45 #if STANDARD_GALACTIC_ALPHABET 32,0,32,0,32, // 46 dot #else 0x00, 0x00, 0x60, 0x60, 0x00, // . char = 46 #endif 0x20, 0x10, 0x08, 0x04, 0x02, // / char = 47 0x3E, 0x51, 0x49, 0x45, 0x3E, // 0 char = 48 0x00, 0x42, 0x7F, 0x40, 0x00, // 1 char = 49 0x72, 0x49, 0x49, 0x49, 0x46, // 2 char = 50 0x21, 0x41, 0x49, 0x4D, 0x33, // 3 char = 51 0x18, 0x14, 0x12, 0x7F, 0x10, // 4 char = 52 0x27, 0x45, 0x45, 0x45, 0x39, // 5 char = 53 0x3C, 0x4A, 0x49, 0x49, 0x31, // 6 char = 54 0x41, 0x21, 0x11, 0x09, 0x07, // 7 char = 55 0x36, 0x49, 0x49, 0x49, 0x36, // 8 char = 56 0x46, 0x49, 0x49, 0x29, 0x1E, // 9 char = 57 0x00, 0x00, 0x14, 0x00, 0x00, // : char = 58 0x00, 0x40, 0x34, 0x00, 0x00, // ; char = 59 0x00, 0x08, 0x14, 0x22, 0x41, // < char = 60 0x14, 0x14, 0x14, 0x14, 0x14, // = char = 61 0x00, 0x41, 0x22, 0x14, 0x08, // > char = 62 0x02, 0x01, 0x59, 0x09, 0x06, // ? char = 63 0x3E, 0x41, 0x5D, 0x59, 0x4E, // @ char = 64 #if STANDARD_GALACTIC_ALPHABET 64,126,1,1,2, // 65 A 64,64,79,80,96, // 66 B 0,29,112,0,0, // 67 C 10,10,18,34,34, // 68 D 127,64,64,64,65, // 69 E 20,4,20,4,20, // 70 F 0,8,8,127,0, // 71 G 5,5,125,5,5, // 72 H 0,0,119,0,0, // 73 I 0,0,107,0,0, // 74 J 8,0,127,0,8, // 75 K 0,126,0,36,0, // 76 L 66,64,64,64,126, // 77 M 0,67,32,24,7, // 78 N 0,65,33,25,7, // 79 O 0,122,0,94,0, // 80 P 36,36,37,36,60, // 81 Q 0,66,0,0,66, // 82 R 0,15,120,0,0, // 83 S 0,2,2,2,94, // 84 T 16,20,16,20,16, // 85 U 80,80,95,80,80, // 86 V 8,0,2,0,8, // 87 W 65,48,8,6,1, // 88 X 0,126,0,126,0, // 89 Y 124,2,1,2,124, // 90 Z #else 0x7C, 0x12, 0x11, 0x12, 0x7C, // A char = 65 0x7F, 0x49, 0x49, 0x49, 0x36, // B char = 66 0x3E, 0x41, 0x41, 0x41, 0x22, // C char = 67 0x7F, 0x41, 0x41, 0x41, 0x3E, // D char = 68 0x7F, 0x49, 0x49, 0x49, 0x41, // E char = 69 0x7F, 0x09, 0x09, 0x09, 0x01, // F char = 70 0x3E, 0x41, 0x41, 0x51, 0x73, // G char = 71 0x7F, 0x08, 0x08, 0x08, 0x7F, // H char = 72 0x00, 0x41, 0x7F, 0x41, 0x00, // I char = 73 0x20, 0x40, 0x41, 0x3F, 0x01, // J char = 74 0x7F, 0x08, 0x14, 0x22, 0x41, // K char = 75 0x7F, 0x40, 0x40, 0x40, 0x40, // L char = 76 0x7F, 0x02, 0x1C, 0x02, 0x7F, // M char = 77 0x7F, 0x04, 0x08, 0x10, 0x7F, // N char = 78 0x3E, 0x41, 0x41, 0x41, 0x3E, // O char = 79 0x7F, 0x09, 0x09, 0x09, 0x06, // P char = 80 0x3E, 0x41, 0x51, 0x21, 0x5E, // Q char = 81 0x7F, 0x09, 0x19, 0x29, 0x46, // R char = 82 0x26, 0x49, 0x49, 0x49, 0x32, // S char = 83 0x03, 0x01, 0x7F, 0x01, 0x03, // T char = 84 0x3F, 0x40, 0x40, 0x40, 0x3F, // U char = 85 0x1F, 0x20, 0x40, 0x20, 0x1F, // V char = 86 0x3F, 0x40, 0x38, 0x40, 0x3F, // W char = 87 0x63, 0x14, 0x08, 0x14, 0x63, // X char = 88 0x03, 0x04, 0x78, 0x04, 0x03, // Y char = 89 0x61, 0x59, 0x49, 0x4D, 0x43, // Z char = 90 #endif 0x00, 0x7F, 0x41, 0x41, 0x41, // [ char = 91 0x02, 0x04, 0x08, 0x10, 0x20, // \ char = 92 0x00, 0x41, 0x41, 0x41, 0x7F, // ] char = 93 0x04, 0x02, 0x01, 0x02, 0x04, // ^ char = 94 0x40, 0x40, 0x40, 0x40, 0x40, // _ char = 95 0x00, 0x03, 0x07, 0x08, 0x00, // ` char = 96 #if STANDARD_GALACTIC_ALPHABET 64,126,1,1,2, // 65 A 64,64,79,80,96, // 66 B 0,29,112,0,0, // 67 C 10,10,18,34,34, // 68 D 127,64,64,64,65, // 69 E 20,4,20,4,20, // 70 F 0,8,8,127,0, // 71 G 5,5,125,5,5, // 72 H 0,0,119,0,0, // 73 I 0,0,107,0,0, // 74 J 8,0,127,0,8, // 75 K 0,126,0,36,0, // 76 L 66,64,64,64,126, // 77 M 0,67,32,24,7, // 78 N 0,65,33,25,7, // 79 O 0,122,0,94,0, // 80 P 36,36,37,36,60, // 81 Q 0,66,0,0,66, // 82 R 0,15,120,0,0, // 83 S 0,2,2,2,94, // 84 T 16,20,16,20,16, // 85 U 80,80,95,80,80, // 86 V 8,0,2,0,8, // 87 W 65,48,8,6,1, // 88 X 0,126,0,126,0, // 89 Y 124,2,1,2,124, // 90 Z #else 0x20, 0x54, 0x54, 0x78, 0x40, // a char = 97 0x7F, 0x28, 0x44, 0x44, 0x38, // b char = 98 0x38, 0x44, 0x44, 0x44, 0x28, // c char = 99 0x38, 0x44, 0x44, 0x28, 0x7F, // d char = 100 0x38, 0x54, 0x54, 0x54, 0x18, // e char = 101 0x00, 0x08, 0x7E, 0x09, 0x02, // f char = 102 0x18, 0xA4, 0xA4, 0x9C, 0x78, // g char = 103 0x7F, 0x08, 0x04, 0x04, 0x78, // h char = 104 0x00, 0x44, 0x7D, 0x40, 0x00, // i char = 105 0x20, 0x40, 0x40, 0x3D, 0x00, // j char = 106 0x7F, 0x10, 0x28, 0x44, 0x00, // k char = 107 0x00, 0x41, 0x7F, 0x40, 0x00, // l char = 108 0x7C, 0x04, 0x78, 0x04, 0x78, // m char = 109 0x7C, 0x08, 0x04, 0x04, 0x78, // n char = 110 0x38, 0x44, 0x44, 0x44, 0x38, // o char = 111 0xFC, 0x18, 0x24, 0x24, 0x18, // p char = 112 0x18, 0x24, 0x24, 0x18, 0xFC, // q char = 113 0x7C, 0x08, 0x04, 0x04, 0x08, // r char = 114 0x48, 0x54, 0x54, 0x54, 0x24, // s char = 115 0x04, 0x04, 0x3F, 0x44, 0x24, // t char = 116 0x3C, 0x40, 0x40, 0x20, 0x7C, // u char = 117 0x1C, 0x20, 0x40, 0x20, 0x1C, // v char = 118 0x3C, 0x40, 0x30, 0x40, 0x3C, // w char = 119 0x44, 0x28, 0x10, 0x28, 0x44, // x char = 120 0x4C, 0x90, 0x90, 0x90, 0x7C, // y char = 121 0x44, 0x64, 0x54, 0x4C, 0x44, // z char = 122 #endif 0x00, 0x08, 0x36, 0x41, 0x00, // { char = 123 0x00, 0x00, 0x77, 0x00, 0x00, // | char = 124 0x00, 0x41, 0x36, 0x08, 0x00, // } char = 125 0x02, 0x01, 0x02, 0x04, 0x02, // ~ char = 126 0x3C, 0x26, 0x23, 0x26, 0x3C, // DEL char = 127 // for extended ASCII, see ExtendedASCII.png 0x1E, 0xA1, 0xA1, 0x61, 0x12, // char = 128 0x3A, 0x40, 0x40, 0x20, 0x7A, // char = 129 0x38, 0x54, 0x54, 0x55, 0x59, // char = 130 0x21, 0x55, 0x55, 0x79, 0x41, // char = 131 0x21, 0x54, 0x54, 0x78, 0x41, // char = 132 0x21, 0x55, 0x54, 0x78, 0x40, // char = 133 0x20, 0x54, 0x55, 0x79, 0x40, // char = 134 0x0C, 0x1E, 0x52, 0x72, 0x12, // char = 135 0x39, 0x55, 0x55, 0x55, 0x59, // char = 136 0x39, 0x54, 0x54, 0x54, 0x59, // char = 137 0x39, 0x55, 0x54, 0x54, 0x58, // char = 138 0x00, 0x00, 0x45, 0x7C, 0x41, // char = 139 0x00, 0x02, 0x45, 0x7D, 0x42, // char = 140 0x00, 0x01, 0x45, 0x7C, 0x40, // char = 141 0xF0, 0x29, 0x24, 0x29, 0xF0, // char = 142 0xF0, 0x28, 0x25, 0x28, 0xF0, // char = 143 0x7C, 0x54, 0x55, 0x45, 0x00, // char = 144 0x20, 0x54, 0x54, 0x7C, 0x54, // char = 145 0x7C, 0x0A, 0x09, 0x7F, 0x49, // char = 146 0x32, 0x49, 0x49, 0x49, 0x32, // char = 147 0x32, 0x48, 0x48, 0x48, 0x32, // char = 148 0x32, 0x4A, 0x48, 0x48, 0x30, // char = 149 0x3A, 0x41, 0x41, 0x21, 0x7A, // char = 150 0x3A, 0x42, 0x40, 0x20, 0x78, // char = 151 0x00, 0x9D, 0xA0, 0xA0, 0x7D, // char = 152 0x39, 0x44, 0x44, 0x44, 0x39, // char = 153 0x3D, 0x40, 0x40, 0x40, 0x3D, // char = 154 0x3C, 0x24, 0xFF, 0x24, 0x24, // char = 155 0x48, 0x7E, 0x49, 0x43, 0x66, // char = 156 0x2B, 0x2F, 0xFC, 0x2F, 0x2B, // char = 157 0xFF, 0x09, 0x29, 0xF6, 0x20, // char = 158 0xC0, 0x88, 0x7E, 0x09, 0x03, // char = 159 0x20, 0x54, 0x54, 0x79, 0x41, // char = 160 0x00, 0x00, 0x44, 0x7D, 0x41, // char = 161 0x30, 0x48, 0x48, 0x4A, 0x32, // char = 162 0x38, 0x40, 0x40, 0x22, 0x7A, // char = 163 0x00, 0x7A, 0x0A, 0x0A, 0x72, // char = 164 0x7D, 0x0D, 0x19, 0x31, 0x7D, // char = 165 0x26, 0x29, 0x29, 0x2F, 0x28, // char = 166 0x26, 0x29, 0x29, 0x29, 0x26, // char = 167 0x30, 0x48, 0x4D, 0x40, 0x20, // char = 168 0x38, 0x08, 0x08, 0x08, 0x08, // char = 169 0x08, 0x08, 0x08, 0x08, 0x38, // char = 170 0x2F, 0x10, 0xC8, 0xAC, 0xBA, // char = 171 0x2F, 0x10, 0x28, 0x34, 0xFA, // char = 172 0x00, 0x00, 0x7B, 0x00, 0x00, // char = 173 0x08, 0x14, 0x2A, 0x14, 0x22, // char = 174 0x22, 0x14, 0x2A, 0x14, 0x08, // char = 175 0xAA, 0x00, 0x55, 0x00, 0xAA, // char = 176 0xAA, 0x55, 0xAA, 0x55, 0xAA, // char = 177 0x00, 0x00, 0x00, 0xFF, 0x00, // char = 178 0x10, 0x10, 0x10, 0xFF, 0x00, // char = 179 0x14, 0x14, 0x14, 0xFF, 0x00, // char = 180 0x10, 0x10, 0xFF, 0x00, 0xFF, // char = 181 0x10, 0x10, 0xF0, 0x10, 0xF0, // char = 182 0x14, 0x14, 0x14, 0xFC, 0x00, // char = 183 0x14, 0x14, 0xF7, 0x00, 0xFF, // char = 184 0x00, 0x00, 0xFF, 0x00, 0xFF, // char = 185 0x14, 0x14, 0xF4, 0x04, 0xFC, // char = 186 0x14, 0x14, 0x17, 0x10, 0x1F, // char = 187 0x10, 0x10, 0x1F, 0x10, 0x1F, // char = 188 0x14, 0x14, 0x14, 0x1F, 0x00, // char = 189 0x10, 0x10, 0x10, 0xF0, 0x00, // char = 190 0x00, 0x00, 0x00, 0x1F, 0x10, // char = 191 0x10, 0x10, 0x10, 0x1F, 0x10, // char = 192 0x10, 0x10, 0x10, 0xF0, 0x10, // char = 193 0x00, 0x00, 0x00, 0xFF, 0x10, // char = 194 0x10, 0x10, 0x10, 0x10, 0x10, // char = 195 0x10, 0x10, 0x10, 0xFF, 0x10, // char = 196 0x00, 0x00, 0x00, 0xFF, 0x14, // char = 197 0x00, 0x00, 0xFF, 0x00, 0xFF, // char = 198 0x00, 0x00, 0x1F, 0x10, 0x17, // char = 199 0x00, 0x00, 0xFC, 0x04, 0xF4, // char = 200 0x14, 0x14, 0x17, 0x10, 0x17, // char = 201 0x14, 0x14, 0xF4, 0x04, 0xF4, // char = 202 0x00, 0x00, 0xFF, 0x00, 0xF7, // char = 203 0x14, 0x14, 0x14, 0x14, 0x14, // char = 204 0x14, 0x14, 0xF7, 0x00, 0xF7, // char = 205 0x14, 0x14, 0x14, 0x17, 0x14, // char = 206 0x10, 0x10, 0x1F, 0x10, 0x1F, // char = 207 0x14, 0x14, 0x14, 0xF4, 0x14, // char = 208 0x10, 0x10, 0xF0, 0x10, 0xF0, // char = 209 0x00, 0x00, 0x1F, 0x10, 0x1F, // char = 210 0x00, 0x00, 0x00, 0x1F, 0x14, // char = 211 0x00, 0x00, 0x00, 0xFC, 0x14, // char = 212 0x00, 0x00, 0xF0, 0x10, 0xF0, // char = 213 0x10, 0x10, 0xFF, 0x10, 0xFF, // char = 214 0x14, 0x14, 0x14, 0xFF, 0x14, // char = 215 0x10, 0x10, 0x10, 0x1F, 0x00, // char = 216 0x00, 0x00, 0x00, 0xF0, 0x10, // char = 217 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, // char = 218 0xF0, 0xF0, 0xF0, 0xF0, 0xF0, // char = 219 0xFF, 0xFF, 0xFF, 0x00, 0x00, // char = 220 0x00, 0x00, 0x00, 0xFF, 0xFF, // char = 221 0x0F, 0x0F, 0x0F, 0x0F, 0x0F, // char = 222 0x38, 0x44, 0x44, 0x38, 0x44, // char = 223 0x7C, 0x2A, 0x2A, 0x3E, 0x14, // char = 224 0x7E, 0x02, 0x02, 0x06, 0x06, // char = 225 0x02, 0x7E, 0x02, 0x7E, 0x02, // char = 226 0x63, 0x55, 0x49, 0x41, 0x63, // char = 227 0x38, 0x44, 0x44, 0x3C, 0x04, // char = 228 0x40, 0x7E, 0x20, 0x1E, 0x20, // char = 229 0x06, 0x02, 0x7E, 0x02, 0x02, // char = 230 0x99, 0xA5, 0xE7, 0xA5, 0x99, // char = 231 0x1C, 0x2A, 0x49, 0x2A, 0x1C, // char = 232 0x4C, 0x72, 0x01, 0x72, 0x4C, // char = 233 0x30, 0x4A, 0x4D, 0x4D, 0x30, // char = 234 0x30, 0x48, 0x78, 0x48, 0x30, // char = 235 0xBC, 0x62, 0x5A, 0x46, 0x3D, // char = 236 0x3E, 0x49, 0x49, 0x49, 0x00, // char = 237 0x7E, 0x01, 0x01, 0x01, 0x7E, // char = 238 0x2A, 0x2A, 0x2A, 0x2A, 0x2A, // char = 239 0x44, 0x44, 0x5F, 0x44, 0x44, // char = 240 0x40, 0x51, 0x4A, 0x44, 0x40, // char = 241 0x40, 0x44, 0x4A, 0x51, 0x40, // char = 242 0x00, 0x00, 0xFF, 0x01, 0x03, // char = 243 0xE0, 0x80, 0xFF, 0x00, 0x00, // char = 244 0x08, 0x08, 0x6B, 0x6B, 0x08, // char = 245 0x36, 0x12, 0x36, 0x24, 0x36, // char = 246 0x06, 0x0F, 0x09, 0x0F, 0x06, // char = 247 0x00, 0x00, 0x18, 0x18, 0x00, // char = 248 0x00, 0x00, 0x10, 0x10, 0x00, // char = 249 0x30, 0x40, 0xFF, 0x01, 0x01, // char = 250 0x00, 0x1F, 0x01, 0x01, 0x1E, // char = 251 0x00, 0x19, 0x1D, 0x17, 0x12, // char = 252 0x00, 0x3C, 0x3C, 0x3C, 0x3C, // char = 253 0x00, 0x00, 0x00, 0x00, 0x00, // char = 254 }; static uint8_t ColStart, RowStart; // some displays need this changed static uint8_t Rotation; // 0 to 3 static enum initRFlags TabColor; static int16_t _width = ST7735_TFTWIDTH; // this could probably be a constant, except it is used in Adafruit_GFX and depends on image rotation static int16_t _height = ST7735_TFTHEIGHT; // Rather than a bazillion SPI_OutCommand() and SPI_OutData() calls, screen // initialization commands and arguments are organized in these tables // stored in ROM. The table may look bulky, but that's mostly the // formatting -- storage-wise this is hundreds of bytes more compact // than the equivalent code. Companion function follows. #define DELAY 0x80 static const uint8_t Bcmd[] = { // Initialization commands for 7735B screens 18, // 18 commands in list: ST7735_SWRESET, DELAY, // 1: Software reset, no args, w/delay 50, // 50 ms delay ST7735_SLPOUT , DELAY, // 2: Out of sleep mode, no args, w/delay 255, // 255 = 500 ms delay ST7735_COLMOD , 1+DELAY, // 3: Set color mode, 1 arg + delay: 0x05, // 16-bit color 10, // 10 ms delay ST7735_FRMCTR1, 3+DELAY, // 4: Frame rate control, 3 args + delay: 0x00, // fastest refresh 0x06, // 6 lines front porch 0x03, // 3 lines back porch 10, // 10 ms delay ST7735_MADCTL , 1 , // 5: Memory access ctrl (directions), 1 arg: 0x08, // Row addr/col addr, bottom to top refresh ST7735_DISSET5, 2 , // 6: Display settings #5, 2 args, no delay: 0x15, // 1 clk cycle nonoverlap, 2 cycle gate // rise, 3 cycle osc equalize 0x02, // Fix on VTL ST7735_INVCTR , 1 , // 7: Display inversion control, 1 arg: 0x0, // Line inversion ST7735_PWCTR1 , 2+DELAY, // 8: Power control, 2 args + delay: 0x02, // GVDD = 4.7V 0x70, // 1.0uA 10, // 10 ms delay ST7735_PWCTR2 , 1 , // 9: Power control, 1 arg, no delay: 0x05, // VGH = 14.7V, VGL = -7.35V ST7735_PWCTR3 , 2 , // 10: Power control, 2 args, no delay: 0x01, // Opamp current small 0x02, // Boost frequency ST7735_VMCTR1 , 2+DELAY, // 11: Power control, 2 args + delay: 0x3C, // VCOMH = 4V 0x38, // VCOML = -1.1V 10, // 10 ms delay ST7735_PWCTR6 , 2 , // 12: Power control, 2 args, no delay: 0x11, 0x15, ST7735_GMCTRP1,16 , // 13: Magical unicorn dust, 16 args, no delay: 0x09, 0x16, 0x09, 0x20, // (seriously though, not sure what 0x21, 0x1B, 0x13, 0x19, // these config values represent) 0x17, 0x15, 0x1E, 0x2B, 0x04, 0x05, 0x02, 0x0E, ST7735_GMCTRN1,16+DELAY, // 14: Sparkles and rainbows, 16 args + delay: 0x0B, 0x14, 0x08, 0x1E, // (ditto) 0x22, 0x1D, 0x18, 0x1E, 0x1B, 0x1A, 0x24, 0x2B, 0x06, 0x06, 0x02, 0x0F, 10, // 10 ms delay ST7735_CASET , 4 , // 15: Column addr set, 4 args, no delay: 0x00, 0x02, // XSTART = 2 0x00, 0x81, // XEND = 129 ST7735_RASET , 4 , // 16: Row addr set, 4 args, no delay: 0x00, 0x02, // XSTART = 1 0x00, 0x81, // XEND = 160 ST7735_NORON , DELAY, // 17: Normal display on, no args, w/delay 10, // 10 ms delay ST7735_DISPON , DELAY, // 18: Main screen turn on, no args, w/delay 255 }; // 255 = 500 ms delay static const uint8_t Rcmd1[] = { // Init for 7735R, part 1 (red or green tab) 15, // 15 commands in list: ST7735_SWRESET, DELAY, // 1: Software reset, 0 args, w/delay 150, // 150 ms delay ST7735_SLPOUT , DELAY, // 2: Out of sleep mode, 0 args, w/delay 255, // 500 ms delay ST7735_FRMCTR1, 3 , // 3: Frame rate ctrl - normal mode, 3 args: 0x01, 0x2C, 0x2D, // Rate = fosc/(1x2+40) * (LINE+2C+2D) ST7735_FRMCTR2, 3 , // 4: Frame rate control - idle mode, 3 args: 0x01, 0x2C, 0x2D, // Rate = fosc/(1x2+40) * (LINE+2C+2D) ST7735_FRMCTR3, 6 , // 5: Frame rate ctrl - partial mode, 6 args: 0x01, 0x2C, 0x2D, // Dot inversion mode 0x01, 0x2C, 0x2D, // Line inversion mode ST7735_INVCTR , 1 , // 6: Display inversion ctrl, 1 arg, no delay: 0x07, // No inversion ST7735_PWCTR1 , 3 , // 7: Power control, 3 args, no delay: 0xA2, 0x02, // -4.6V 0x84, // AUTO mode ST7735_PWCTR2 , 1 , // 8: Power control, 1 arg, no delay: 0xC5, // VGH25 = 2.4C VGSEL = -10 VGH = 3 * AVDD ST7735_PWCTR3 , 2 , // 9: Power control, 2 args, no delay: 0x0A, // Opamp current small 0x00, // Boost frequency ST7735_PWCTR4 , 2 , // 10: Power control, 2 args, no delay: 0x8A, // BCLK/2, Opamp current small & Medium low 0x2A, ST7735_PWCTR5 , 2 , // 11: Power control, 2 args, no delay: 0x8A, 0xEE, ST7735_VMCTR1 , 1 , // 12: Power control, 1 arg, no delay: 0x0E, ST7735_INVOFF , 0 , // 13: Don't invert display, no args, no delay ST7735_MADCTL , 1 , // 14: Memory access control (directions), 1 arg: 0xC8, // row addr/col addr, bottom to top refresh ST7735_COLMOD , 1 , // 15: set color mode, 1 arg, no delay: 0x05 }; // 16-bit color static const uint8_t Rcmd2green[] = { // Init for 7735R, part 2 (green tab only) 2, // 2 commands in list: ST7735_CASET , 4 , // 1: Column addr set, 4 args, no delay: 0x00, 0x02, // XSTART = 0 0x00, 0x7F+0x02, // XEND = 127 ST7735_RASET , 4 , // 2: Row addr set, 4 args, no delay: 0x00, 0x01, // XSTART = 0 0x00, 0x9F+0x01 }; // XEND = 159 static const uint8_t Rcmd2red[] = { // Init for 7735R, part 2 (red tab only) 2, // 2 commands in list: ST7735_CASET , 4 , // 1: Column addr set, 4 args, no delay: 0x00, 0x00, // XSTART = 0 0x00, 0x7F, // XEND = 127 ST7735_RASET , 4 , // 2: Row addr set, 4 args, no delay: 0x00, 0x00, // XSTART = 0 0x00, 0x9F }; // XEND = 159 static const uint8_t Rcmd3[] = { // Init for 7735R, part 3 (red or green tab) 4, // 4 commands in list: ST7735_GMCTRP1, 16 , // 1: Magical unicorn dust, 16 args, no delay: 0x02, 0x1c, 0x07, 0x12, 0x37, 0x32, 0x29, 0x2d, 0x29, 0x25, 0x2B, 0x39, 0x00, 0x01, 0x03, 0x10, ST7735_GMCTRN1, 16 , // 2: Sparkles and rainbows, 16 args, no delay: 0x03, 0x1d, 0x07, 0x06, 0x2E, 0x2C, 0x29, 0x2D, 0x2E, 0x2E, 0x37, 0x3F, 0x00, 0x00, 0x02, 0x10, ST7735_NORON , DELAY, // 3: Normal display on, no args, w/delay 10, // 10 ms delay ST7735_DISPON , DELAY, // 4: Main screen turn on, no args w/delay 100 }; // 100 ms delay // Companion code to the above tables. Reads and issues // a series of LCD commands stored in ROM byte array. void static commandList(const uint8_t *addr) { uint8_t numCommands, numArgs; uint16_t ms; numCommands = *(addr++); // Number of commands to follow while(numCommands--) { // For each command... SPI_OutCommand(*(addr++)); // Read, issue command numArgs = *(addr++); // Number of args to follow ms = numArgs & DELAY; // If hibit set, delay follows args numArgs &= ~DELAY; // Mask out delay bit while(numArgs--) { // For each argument... SPI_OutData(*(addr++)); // Read, issue argument } if(ms) { ms = *(addr++); // Read post-command delay time (ms) if(ms == 255) ms = 500; // If 255, delay for 500 ms Clock_Delay1ms(ms); } } } // Initialization code common to both 'B' and 'R' type displays void static commonInit(const uint8_t *cmdList) { ColStart = RowStart = 0; // May be overridden in init func SPI_Init(); // 8MHz clock if(cmdList) commandList(cmdList); } //------------ST7735_InitB------------ // Initialization for ST7735B screens. // Input: none // Output: none void ST7735_InitB(void) { commonInit(Bcmd); ST7735_SetCursor(0,0); StTextColor = ST7735_YELLOW; ST7735_FillScreen(0); // set screen to black } //------------ST7735_InitR------------ // Initialization for ST7735R screens (green or red tabs). // Input: option one of the enumerated options depending on tabs // Output: none void ST7735_InitR(enum initRFlags option) { commonInit(Rcmd1); if(option == INITR_GREENTAB) { commandList(Rcmd2green); ColStart = 2; RowStart = 1; } else { // colstart, rowstart left at default '0' values commandList(Rcmd2red); } commandList(Rcmd3); // if black, change MADCTL color filter if (option == INITR_BLACKTAB) { SPI_OutCommand(ST7735_MADCTL); SPI_OutData(0xC0); } TabColor = option; ST7735_SetCursor(0,0); StTextColor = ST7735_YELLOW; ST7735_FillScreen(0); // set screen to black } // Set the region of the screen RAM to be modified // Pixel colors are sent left to right, top to bottom // (same as Font table is encoded; different from regular bitmap) // Requires 11 bytes of transmission void static setAddrWindow(uint8_t x0, uint8_t y0, uint8_t x1, uint8_t y1) { SPI_OutCommand(ST7735_CASET); // Column addr set SPI_OutData(0x00); SPI_OutData(x0+ColStart); // XSTART SPI_OutData(0x00); SPI_OutData(x1+ColStart); // XEND SPI_OutCommand(ST7735_RASET); // Row addr set SPI_OutData(0x00); SPI_OutData(y0+RowStart); // YSTART SPI_OutData(0x00); SPI_OutData(y1+RowStart); // YEND SPI_OutCommand(ST7735_RAMWR); // write to RAM } // Send two bytes of data, most significant byte first // Requires 2 bytes of transmission void static pushColor(uint16_t color) { SPI_OutData((uint8_t)(color >> 8)); SPI_OutData((uint8_t)color); } //------------ST7735_DrawPixel------------ // Color the pixel at the given coordinates with the given color. // Requires 13 bytes of transmission // Input: x horizontal position of the pixel, columns from the left edge // must be less than 128 // 0 is on the left, 126 is near the right // y vertical position of the pixel, rows from the top edge // must be less than 160 // 159 is near the wires, 0 is the side opposite the wires // color 16-bit color, which can be produced by ST7735_Color565() // Output: none void ST7735_DrawPixel(int16_t x, int16_t y, uint16_t color) { if((x < 0) || (x >= _width) || (y < 0) || (y >= _height)) return; // setAddrWindow(x,y,x+1,y+1); // original code, bug??? setAddrWindow(x,y,x,y); pushColor(color); //deselect(); } //------------ST7735_DrawFastVLine------------ // Draw a vertical line at the given coordinates with the given height and color. // A vertical line is parallel to the longer side of the rectangular display // Requires (11 + 2*h) bytes of transmission (assuming image fully on screen) // Input: x horizontal position of the start of the line, columns from the left edge // y vertical position of the start of the line, rows from the top edge // h vertical height of the line // color 16-bit color, which can be produced by ST7735_Color565() // Output: none void ST7735_DrawFastVLine(int16_t x, int16_t y, int16_t h, uint16_t color) { uint8_t hi = color >> 8, lo = color; // Rudimentary clipping if((x >= _width) || (y >= _height)) return; if((y+h-1) >= _height) h = _height-y; setAddrWindow(x, y, x, y+h-1); while (h--) { SPI_OutData(hi); SPI_OutData(lo); } // deselect(); } //------------ST7735_DrawFastHLine------------ // Draw a horizontal line at the given coordinates with the given width and color. // A horizontal line is parallel to the shorter side of the rectangular display // Requires (11 + 2*w) bytes of transmission (assuming image fully on screen) // Input: x horizontal position of the start of the line, columns from the left edge // y vertical position of the start of the line, rows from the top edge // w horizontal width of the line // color 16-bit color, which can be produced by ST7735_Color565() // Output: none void ST7735_DrawFastHLine(int16_t x, int16_t y, int16_t w, uint16_t color) { uint8_t hi = color >> 8, lo = color; // Rudimentary clipping if((x >= _width) || (y >= _height)) return; if((x+w-1) >= _width) w = _width-x; setAddrWindow(x, y, x+w-1, y); while (w--) { SPI_OutData(hi); SPI_OutData(lo); } //deselect(); } //------------ST7735_FillScreen------------ // Fill the screen with the given color. // Requires 40,971 bytes of transmission // Input: color 16-bit color, which can be produced by ST7735_Color565() // Output: none void ST7735_FillScreen(uint16_t color) { ST7735_FillRect(0, 0, _width, _height, color); // original // screen is actually 129 by 161 pixels, x 0 to 128, y goes from 0 to 160 } //------------ST7735_FillRect------------ // Draw a filled rectangle at the given coordinates with the given width, height, and color. // Requires (11 + 2*w*h) bytes of transmission (assuming image fully on screen) // Input: x horizontal position of the top left corner of the rectangle, columns from the left edge // y vertical position of the top left corner of the rectangle, rows from the top edge // w horizontal width of the rectangle // h vertical height of the rectangle // color 16-bit color, which can be produced by ST7735_Color565() // Output: none void ST7735_FillRect(int16_t x, int16_t y, int16_t w, int16_t h, uint16_t color) { uint8_t hi = color >> 8, lo = color; // rudimentary clipping (drawChar w/big text requires this) if((x >= _width) || (y >= _height)) return; if((x + w - 1) >= _width) w = _width - x; if((y + h - 1) >= _height) h = _height - y; setAddrWindow(x, y, x+w-1, y+h-1); for(y=h; y>0; y--) { for(x=w; x>0; x--) { SPI_OutData(hi); SPI_OutData(lo); } } // deselect(); } //------------ST7735_DrawSmallCircle------------ // Draw a small circle (diameter of 6 pixels) // rectangle at the given coordinates with the given color. // Requires (11*6+24*2)=114 bytes of transmission (assuming image on screen) // Input: x horizontal position of the top left corner of the circle, columns from the left edge // y vertical position of the top left corner of the circle, rows from the top edge // color 16-bit color, which can be produced by ST7735_Color565() // Output: none int16_t const smallCircle[6][3]={ {2,3, 2}, {1 , 4, 4}, {0 , 5, 6}, {0 , 5, 6}, {1 , 4, 4}, {2,3, 2}}; void ST7735_DrawSmallCircle(int16_t x, int16_t y, uint16_t color) { uint32_t i,w; uint8_t hi = color >> 8, lo = color; // rudimentary clipping if((x>_width-5)||(y>_height-5)) return; // doesn't fit for(i=0; i<6; i++){ setAddrWindow(x+smallCircle[i][0], y+i, x+smallCircle[i][1], y+i); w = smallCircle[i][2]; while (w--) { SPI_OutData(hi); SPI_OutData(lo); } } // deselect(); } //------------ST7735_DrawCircle------------ // Draw a small circle (diameter of 10 pixels) // rectangle at the given coordinates with the given color. // Requires (11*10+68*2)=178 bytes of transmission (assuming image on screen) // Input: x horizontal position of the top left corner of the circle, columns from the left edge // y vertical position of the top left corner of the circle, rows from the top edge // color 16-bit color, which can be produced by ST7735_Color565() // Output: none int16_t const circle[10][3]={ { 4,5, 2}, {2 , 7, 6}, {1 , 8, 8}, {1 , 8, 8}, {0 , 9, 10}, {0 , 9, 10}, {1 , 8, 8}, {1 , 8, 8}, {2 , 7, 6}, { 4,5, 2}}; void ST7735_DrawCircle(int16_t x, int16_t y, uint16_t color) { uint32_t i,w; uint8_t hi = color >> 8, lo = color; // rudimentary clipping if((x>_width-9)||(y>_height-9)) return; // doesn't fit for(i=0; i<10; i++){ setAddrWindow(x+circle[i][0], y+i, x+circle[i][1], y+i); w = circle[i][2]; while (w--) { SPI_OutData(hi); SPI_OutData(lo); } } // deselect(); } //------------ST7735_Color565------------ // Pass 8-bit (each) R,G,B and get back 16-bit packed color. // Input: r red value // g green value // b blue value // Output: 16-bit color uint16_t ST7735_Color565(uint8_t r, uint8_t g, uint8_t b) { return ((b & 0xF8) << 8) | ((g & 0xFC) << 3) | (r >> 3); } //------------ST7735_SwapColor------------ // Swaps the red and blue values of the given 16-bit packed color; // green is unchanged. // Input: x 16-bit color in format B, G, R // Output: 16-bit color in format R, G, B uint16_t ST7735_SwapColor(uint16_t x) { return (x << 11) | (x & 0x07E0) | (x >> 11); } //------------ST7735_DrawBitmap------------ // Displays a 16-bit color BMP image. A bitmap file that is created // by a PC image processing program has a header and may be padded // with dummy columns so the data have four byte alignment. This // function assumes that all of that has been stripped out, and the // array image[] has one 16-bit halfword for each pixel to be // displayed on the screen (encoded in reverse order, which is // standard for bitmap files). An array can be created in this // format from a 24-bit-per-pixel .bmp file using the associated // converter program. // (x,y) is the screen location of the lower left corner of BMP image // Requires (11 + 2*w*h) bytes of transmission (assuming image fully on screen) // Input: x horizontal position of the bottom left corner of the image, columns from the left edge // y vertical position of the bottom left corner of the image, rows from the top edge // image pointer to a 16-bit color BMP image // w number of pixels wide // h number of pixels tall // Output: none // Must be less than or equal to 128 pixels wide by 160 pixels high void ST7735_DrawBitmap(int16_t x, int16_t y, const uint16_t *image, int16_t w, int16_t h){ int16_t skipC = 0; // non-zero if columns need to be skipped due to clipping int16_t originalWidth = w; // save this value; even if not all columns fit on the screen, the image is still this width in ROM int i = w*(h - 1); if((x >= _width) || ((y - h + 1) >= _height) || ((x + w) <= 0) || (y < 0)){ return; // image is totally off the screen, do nothing } if((w > _width) || (h > _height)){ // image is too wide for the screen, do nothing //***This isn't necessarily a fatal error, but it makes the //following logic much more complicated, since you can have //an image that exceeds multiple boundaries and needs to be //clipped on more than one side. return; } if((x + w - 1) >= _width){ // image exceeds right of screen skipC = (x + w) - _width; // skip cut off columns w = _width - x; } if((y - h + 1) < 0){ // image exceeds top of screen i = i - (h - y - 1)*originalWidth; // skip the last cut off rows h = y + 1; } if(x < 0){ // image exceeds left of screen w = w + x; skipC = -1*x; // skip cut off columns i = i - x; // skip the first cut off columns x = 0; } if(y >= _height){ // image exceeds bottom of screen h = h - (y - _height + 1); y = _height - 1; } setAddrWindow(x, y-h+1, x+w-1, y); for(y=0; y> 8)); // send the bottom 8 bits SPI_OutData((uint8_t)image[i]); i = i + 1; // go to the next pixel } i = i + skipC; i = i - 2*originalWidth; } // deselect(); } //------------ST7735_DrawCharS------------ // Simple character draw function. This is the same function from // Adafruit_GFX.c but adapted for this processor. However, each call // to ST7735_DrawPixel() calls setAddrWindow(), which needs to send // many extra data and commands. If the background color is the same // as the text color, no background will be printed, and text can be // drawn right over existing images without covering them with a box. // Requires (11 + 2*size*size)*6*8 (image fully on screen; textcolor != bgColor) // Input: x horizontal position of the top left corner of the character, columns from the left edge // y vertical position of the top left corner of the character, rows from the top edge // c character to be printed // textColor 16-bit color of the character // bgColor 16-bit color of the background // size number of pixels per character pixel (e.g. size==2 prints each pixel of font as 2x2 square) // Output: none void ST7735_DrawCharS(int16_t x, int16_t y, char c, int16_t textColor, int16_t bgColor, uint8_t size){ uint8_t line; // vertical column of pixels of character in font int32_t i, j; if((x >= _width) || // Clip right (y >= _height) || // Clip bottom ((x + 6 * size - 1) < 0) || // Clip left ((y + 8 * size - 1) < 0)) // Clip top return; uint32_t k = (uint32_t)(c & 0xFF); // convert to unsigned regardless of whether char is signed or unsigned for (i=0; i<6; i++ ) { if (i == 5) line = 0x0; else line = Font[(k*5)+i]; for (j = 0; j<8; j++) { if (line & 0x1) { if (size == 1) // default size ST7735_DrawPixel(x+i, y+j, textColor); else { // big size ST7735_FillRect(x+(i*size), y+(j*size), size, size, textColor); } } else if (bgColor != textColor) { if (size == 1) // default size ST7735_DrawPixel(x+i, y+j, bgColor); else { // big size ST7735_FillRect(x+i*size, y+j*size, size, size, bgColor); } } line >>= 1; } } } //------------ST7735_DrawChar------------ // Advanced character draw function. This is similar to the function // from Adafruit_GFX.c but adapted for this processor. However, this // function only uses one call to setAddrWindow(), which allows it to // run at least twice as fast. // Requires (11 + size*size*6*8) bytes of transmission (assuming image fully on screen) // Input: x horizontal position of the top left corner of the character, columns from the left edge // y vertical position of the top left corner of the character, rows from the top edge // c character to be printed // textColor 16-bit color of the character // bgColor 16-bit color of the background // size number of pixels per character pixel (e.g. size==2 prints each pixel of font as 2x2 square) // Output: none void ST7735_DrawChar(int16_t x, int16_t y, char c, int16_t textColor, int16_t bgColor, uint8_t size){ uint8_t line; // horizontal row of pixels of character int32_t col, row, i, j;// loop indices if(((x + 6*size - 1) >= _width) || // Clip right ((y + 8*size - 1) >= _height) || // Clip bottom ((x + 6*size - 1) < 0) || // Clip left ((y + 8*size - 1) < 0)){ // Clip top return; } uint32_t k = (uint32_t)(c & 0xFF); // convert to unsigned regardless of whether char is signed or unsigned setAddrWindow(x, y, x+6*size-1, y+8*size-1); line = 0x01; // print the top row first // print the rows, starting at the top for(row=0; row<8; row=row+1){ for(i=0; i15) return 0; while(*pt){ ST7735_DrawChar(x*6, y*10, *pt, textColor, ST7735_BLACK, 1); pt++; x = x+1; if(x>20) return count; // number of characters printed count++; } return count; // number of characters printed } //------------ST7735_DrawString------------ // String draw function. // 16 rows (0 to 15) and 21 characters (0 to 20) // Requires (11 + size*size*6*8) bytes of transmission for each character // Input: x columns from the left edge (0 to 20) // y rows from the top edge (0 to 15) // pt pointer to a null terminated string to be printed // textColor 16-bit color of the characters // background is transparent and size is 1 // Output: number of characters printed uint32_t ST7735_DrawStringTransparent(uint16_t x, uint16_t y, char *pt, int16_t textColor){ uint32_t count = 0; if(y>15) return 0; while(*pt){ ST7735_DrawCharS(x*6, y*10, *pt, textColor, textColor, 1); pt++; x = x+1; if(x>20) return count; // number of characters printed count++; } return count; // number of characters printed } //-----------------------fillmessage----------------------- // Output a 32-bit number in unsigned decimal format // Input: 32-bit number to be transferred // Output: none // Variable format 1-10 digits with no space before or after char Message[12]; uint32_t Messageindex; void fillmessage(uint32_t n){ // This function uses recursion to convert decimal number // of unspecified length as an ASCII string if(n >= 10){ fillmessage(n/10); n = n%10; } Message[Messageindex] = (n+'0'); /* n is between 0 and 9 */ if(Messageindex<11)Messageindex++; } void fillmessage4(uint32_t n){ if(n>9999)n=9999; if(n>=1000){ // 1000 to 9999 Messageindex = 0; } else if(n>=100){ // 100 to 999 Message[0] = ' '; Messageindex = 1; }else if(n>=10){ // Message[0] = ' '; /* n is between 10 and 99 */ Message[1] = ' '; Messageindex = 2; }else{ Message[0] = ' '; /* n is between 0 and 9 */ Message[1] = ' '; Message[2] = ' '; Messageindex = 3; } fillmessage(n); } void fillmessage5(uint32_t n){ if(n>99999)n=99999; if(n>=10000){ // 10000 to 99999 Messageindex = 0; } else if(n>=1000){ // 1000 to 9999 Message[0] = ' '; Messageindex = 1; }else if(n>=100){ // 100 to 999 Message[0] = ' '; Message[1] = ' '; Messageindex = 2; }else if(n>=10){ // Message[0] = ' '; /* n is between 10 and 99 */ Message[1] = ' '; Message[2] = ' '; Messageindex = 3; }else{ Message[0] = ' '; /* n is between 0 and 9 */ Message[1] = ' '; Message[2] = ' '; Message[3] = ' '; Messageindex = 4; } fillmessage(n); } void static fillmessage2_1(uint32_t n){ if(n>999)n=999; if(n>=100){ // 100 to 999 Message[0] = (n/100+'0'); /* tens digit */ n = n%100; //the rest }else { // 0 to 99 Message[0] = ' '; /* n is between 0.0 and 9.9 */ } Message[1] = (n/10+'0'); /* ones digit */ n = n%10; //the rest Message[2] = '.'; Message[3] = (n+'0'); /* tenths digit */ Message[4] = 0; } void static fillmessage2_Hex(uint32_t n){ char digit; if(n>255){ Message[0] = '*'; Message[1] = '*'; }else{ digit = n/16; if(digit<10){ digit = digit+'0'; }else{ digit = digit+'A'-10; } Message[0] = digit; /* 16's digit */ digit = n%16; if(digit<10){ digit = digit+'0'; }else{ digit = digit+'A'-10; } Message[1] = digit; /* ones digit */ } Message[2] = ','; Message[3] = 0; } //********ST7735_SetCursor***************** // Move the cursor to the desired X- and Y-position. The // next character will be printed here. X=0 is the leftmost // column. Y=0 is the top row. // inputs: newX new X-position of the cursor (0<=newX<=20) // newY new Y-position of the cursor (0<=newY<=15) // outputs: none void ST7735_SetCursor(uint32_t newX, uint32_t newY){ if((newX > 20) || (newY > 15)){ // bad input return; // do nothing } StX = newX; StY = newY; } //-----------------------ST7735_OutUDec----------------------- // Output a 32-bit number in unsigned decimal format // Position determined by ST7735_SetCursor command // Color set by ST7735_SetTextColor // Input: 32-bit number to be transferred // Output: none // Variable format 1-10 digits with no space before or after void ST7735_OutUDec(uint32_t n){ Messageindex = 0; fillmessage(n); Message[Messageindex] = 0; // terminate ST7735_DrawString(StX,StY,Message,StTextColor); StX = StX+Messageindex; if(StX>20){ StX = 20; ST7735_DrawChar(StX*6,StY*10,'*',ST7735_RED,ST7735_BLACK, 1); } } //-----------------------ST7735_OutUDec4----------------------- // Output a 32-bit number in unsigned 4-digit decimal format // Position determined by ST7735_SetCursor command // Color set by ST7735_SetTextColor // Input: 32-bit number to be transferred // Output: none // Fixed format 4 digits with no space before or after void ST7735_OutUDec4(uint32_t n){ Messageindex = 0; fillmessage4(n); Message[Messageindex] = 0; // terminate ST7735_DrawString(StX,StY,Message,StTextColor); StX = StX+Messageindex; if(StX>20){ StX = 20; ST7735_DrawChar(StX*6,StY*10,'*',ST7735_RED,ST7735_BLACK, 1); } } //-----------------------ST7735_OutUDec5----------------------- // Output a 32-bit number in unsigned 5-digit decimal format // Position determined by ST7735_SetCursor command // Color set by ST7735_SetTextColor // Input: 32-bit number to be transferred // Output: none // Fixed format 5 digits with no space before or after void ST7735_OutUDec5(uint32_t n){ Messageindex = 0; fillmessage5(n); Message[Messageindex] = 0; // terminate ST7735_DrawString(StX,StY,Message,StTextColor); StX = StX+Messageindex; if(StX>20){ StX = 20; ST7735_DrawChar(StX*6,StY*10,'*',ST7735_RED,ST7735_BLACK, 1); } } //-----------------------ST7735_OutUFix2_1----------------------- // Output a 32-bit number in unsigned 3-digit fixed point, 0.1 resolution // numbers 0 to 999 printed as " 0.0" to "99.9" // Position determined by ST7735_SetCursor command // Input: 32-bit number to be transferred // textColor 16-bit color of the numbers // Output: none // Fixed format 4 characters with no space before or after void ST7735_OutUFix2_1(uint32_t n, int16_t textColor){ fillmessage2_1(n); ST7735_DrawString(StX,StY,Message,textColor); StX = StX+4; if(StX>20){ StX = 20; ST7735_DrawChar(StX*6,StY*10,'*',ST7735_RED,ST7735_BLACK, 1); } } //-----------------------ST7735_OutUHex2----------------------- // Output a 32-bit number in unsigned 2-digit hexadecimal format // numbers 0 to 255 printed as "00," to "FF," // Position determined by ST7735_SetCursor command // Input: 32-bit number to be transferred // textColor 16-bit color of the numbers // Output: none // Fixed format 3 characters with comma after void ST7735_OutUHex2(uint32_t n, int16_t textColor){ fillmessage2_Hex(n); ST7735_DrawString(StX,StY,Message,textColor); StX = StX+3; if(StX>20){ StX = 20; ST7735_DrawChar(StX*6,StY*10,'*',ST7735_RED,ST7735_BLACK, 1); } } #define MADCTL_MY 0x80 #define MADCTL_MX 0x40 #define MADCTL_MV 0x20 #define MADCTL_ML 0x10 #define MADCTL_RGB 0x00 #define MADCTL_BGR 0x08 #define MADCTL_MH 0x04 //------------ST7735_SetRotation------------ // Change the image rotation. // Requires 2 bytes of transmission // Input: m new rotation value (0 to 3) // Output: none void ST7735_SetRotation(uint8_t m) { SPI_OutCommand(ST7735_MADCTL); Rotation = m % 4; // can't be higher than 3 switch (Rotation) { case 0: if (TabColor == INITR_BLACKTAB) { SPI_OutData(MADCTL_MX | MADCTL_MY | MADCTL_RGB); } else { SPI_OutData(MADCTL_MX | MADCTL_MY | MADCTL_BGR); } _width = ST7735_TFTWIDTH; _height = ST7735_TFTHEIGHT; break; case 1: if (TabColor == INITR_BLACKTAB) { SPI_OutData(MADCTL_MY | MADCTL_MV | MADCTL_RGB); } else { SPI_OutData(MADCTL_MY | MADCTL_MV | MADCTL_BGR); } _width = ST7735_TFTHEIGHT; _height = ST7735_TFTWIDTH; break; case 2: if (TabColor == INITR_BLACKTAB) { SPI_OutData(MADCTL_RGB); } else { SPI_OutData(MADCTL_BGR); } _width = ST7735_TFTWIDTH; _height = ST7735_TFTHEIGHT; break; case 3: if (TabColor == INITR_BLACKTAB) { SPI_OutData(MADCTL_MX | MADCTL_MV | MADCTL_RGB); } else { SPI_OutData(MADCTL_MX | MADCTL_MV | MADCTL_BGR); } _width = ST7735_TFTHEIGHT; _height = ST7735_TFTWIDTH; break; } // deselect(); } //------------ST7735_InvertDisplay------------ // Send the command to invert all of the colors. // Requires 1 byte of transmission // Input: i 0 to disable inversion; non-zero to enable inversion // Output: none void ST7735_InvertDisplay(int i) { if(i){ SPI_OutCommand(ST7735_INVON); } else{ SPI_OutCommand(ST7735_INVOFF); } // deselect(); } // graphics routines // y coordinates 0 to 31 used for labels and messages // y coordinates 32 to 159 128 pixels high // x coordinates 0 to 127 128 pixels wide int32_t Ymax,Ymin,X; // X goes from 0 to 127 int32_t Yrange; //YrangeDiv2; int TimeIndex; // horizontal position of next point to plot on graph (0 to 99) uint16_t PlotBGColor; // background color of the plot used whenever clearing plot area // *************** ST7735_PlotClear ******************** // Clear the graphics buffer, set X coordinate to 0 // This routine clears the display // Inputs: ymin and ymax are range of the plot // Outputs: none void ST7735_PlotClear(int32_t ymin, int32_t ymax){ ST7735_FillRect(0, 32, 128, 128, ST7735_Color565(228,228,228)); // light grey if(ymax>ymin){ Ymax = ymax; Ymin = ymin; Yrange = ymax-ymin; } else{ Ymax = ymin; Ymin = ymax; Yrange = ymax-ymin; } //YrangeDiv2 = Yrange/2; X = 0; } // ------------ST7735_Drawaxes------------ // Set up the axes, labels, and other variables to // allow data to be plotted in a chart using the // functions ST7735_PlotPoint() and // ST7735_PlotIncrement(). // Input: axisColor 16-bit color for axes, which can be produced by ST7735_Color565() // bgColor 16-bit color for plot background, which can be produced by ST7735_Color565() // xLabel pointer to a null terminated string for x-axis (~4 character space) // yLabel1 pointer to a null terminated string for top of y-axis (~3-5 character space) // label1Color 16-bit color for y-axis label1, which can be produced by ST7735_Color565() // yLabel2 pointer to a null terminated string for bottom of y-axis (~3 character space) // if yLabel2 is empty string, no yLabel2 is printed, and yLabel1 is centered // label2Color 16-bit color for y-axis label2, which can be produced by ST7735_Color565() // ymax maximum value to be printed // ymin minimum value to be printed // Output: none // Assumes: ST7735_Init() has been called void ST7735_Drawaxes(uint16_t axisColor, uint16_t bgColor, char *xLabel, char *yLabel1, uint16_t label1Color, char *yLabel2, uint16_t label2Color, int32_t ymax, int32_t ymin){ int i; // assume that ymax > ymin Ymax = ymax; Ymin = ymin; Yrange = Ymax - Ymin; TimeIndex = 0; PlotBGColor = bgColor; ST7735_FillRect(0, 17, 111, 111, bgColor); ST7735_DrawFastHLine(10, 117, 101, axisColor); ST7735_DrawFastVLine(10, 17, 101, axisColor); for(i=20; i<=110; i=i+10){ ST7735_DrawPixel(i, 118, axisColor); } for(i=17; i<117; i=i+10){ ST7735_DrawPixel(9, i, axisColor); } i = 50; while((*xLabel) && (i < 100)){ ST7735_DrawChar(i, 120, *xLabel, axisColor, bgColor, 1); i = i + 6; xLabel++; } if(*yLabel2){ // two labels i = 26; while((*yLabel2) && (i < 50)){ ST7735_DrawChar(0, i, *yLabel2, label2Color, bgColor, 1); i = i + 8; yLabel2++; } i = 82; }else{ // one label i = 42; } while((*yLabel1) && (i < 120)){ ST7735_DrawChar(0, i, *yLabel1, label1Color, bgColor, 1); i = i + 8; yLabel1++; } } // *************** ST7735_PlotPoint ******************** // Used in the voltage versus time plot, plot one point at y // It does output to display // Inputs: y is the y coordinate of the point plotted // Outputs: none void ST7735_PlotPoint(int32_t y){int32_t j; if(yYmax) y=Ymax; // X goes from 0 to 127 // j goes from 159 to 32 // y=Ymax maps to j=32 // y=Ymin maps to j=159 j = 32+(127*(Ymax-y))/Yrange; if(j<32) j = 32; if(j>159) j = 159; ST7735_DrawPixel(X, j, ST7735_BLUE); ST7735_DrawPixel(X+1, j, ST7735_BLUE); ST7735_DrawPixel(X, j+1, ST7735_BLUE); ST7735_DrawPixel(X+1, j+1, ST7735_BLUE); } // ------------ST7735_PlotPoint2------------ // Plot a point on the chart. To plot several points in the // same column, call this function repeatedly before calling // ST7735_PlotIncrement(). The units of the data are the // same as the ymax and ymin values specified in the // initialization function. // Input: data1 value to be plotted (units not specified) // color1 16-bit color for the point, which can be produced by LCD_Color565() // Output: none // Assumes: ST7735_Init() and ST7735_Drawaxes() have been called void ST7735_PlotPoint2(int32_t data1, uint16_t color1){ data1 = ((data1 - Ymin)*100)/Yrange; if(data1 > 98){ data1 = 98; color1 = ST7735_RED; } if(data1 < 0){ data1 = 0; color1 = ST7735_RED; } ST7735_DrawPixel(TimeIndex + 11, 116 - data1, color1); ST7735_DrawPixel(TimeIndex + 11, 115 - data1, color1); } // ------------ST7735_PlotIncrement------------ // Increment the plot between subsequent calls to // LCD_PlotPoint(). Automatically wrap and clear the // column to be printed to. // Input: none // Output: none // Assumes: ST7735_Init() and ST7735_Drawaxes() have been called void ST7735PlotIncrement(void){ TimeIndex = TimeIndex + 1; if(TimeIndex > 99){ TimeIndex = 0; } ST7735_DrawFastVLine(TimeIndex + 11, 17, 100, PlotBGColor); } // *************** ST7735_PlotLine ******************** // Used in the voltage versus time plot, plot line to new point // It does output to display // Inputs: y is the y coordinate of the point plotted // Outputs: none int32_t lastj=0; void ST7735_PlotLine(int32_t y){int32_t i,j; if(yYmax) y=Ymax; // X goes from 0 to 127 // j goes from 159 to 32 // y=Ymax maps to j=32 // y=Ymin maps to j=159 j = 32+(127*(Ymax-y))/Yrange; if(j < 32) j = 32; if(j > 159) j = 159; if(lastj < 32) lastj = j; if(lastj > 159) lastj = j; if(lastj < j){ for(i = lastj+1; i<=j ; i++){ ST7735_DrawPixel(X, i, ST7735_BLUE) ; ST7735_DrawPixel(X+1, i, ST7735_BLUE) ; } }else if(lastj > j){ for(i = j; iYmax) y1=Ymax; // X goes from 0 to 127 // j goes from 159 to 32 // y=Ymax maps to j=32 // y=Ymin maps to j=159 j = 32+(127*(Ymax-y1))/Yrange; if(j<32) j = 32; if(j>159) j = 159; ST7735_DrawPixel(X, j, ST7735_BLUE); if(y2Ymax) y2=Ymax; j = 32+(127*(Ymax-y2))/Yrange; if(j<32) j = 32; if(j>159) j = 159; ST7735_DrawPixel(X, j, ST7735_BLACK); } // *************** ST7735_PlotBar ******************** // Used in the voltage versus time bar, plot one bar at y // It does not output to display until RIT128x96x4ShowPlot called // Inputs: y is the y coordinate of the bar plotted // Outputs: none void ST7735_PlotBar(int32_t y){ int32_t j; if(yYmax) y=Ymax; // X goes from 0 to 127 // j goes from 159 to 32 // y=Ymax maps to j=32 // y=Ymin maps to j=159 j = 32+(127*(Ymax-y))/Yrange; ST7735_DrawFastVLine(X, j, 159-j, ST7735_BLACK); } // full scaled defined as 3V // Input is 0 to 511, 0 => 159 and 511 => 32 uint8_t const dBfs[512]={ 159, 159, 145, 137, 131, 126, 123, 119, 117, 114, 112, 110, 108, 107, 105, 104, 103, 101, 100, 99, 98, 97, 96, 95, 94, 93, 93, 92, 91, 90, 90, 89, 88, 88, 87, 87, 86, 85, 85, 84, 84, 83, 83, 82, 82, 81, 81, 81, 80, 80, 79, 79, 79, 78, 78, 77, 77, 77, 76, 76, 76, 75, 75, 75, 74, 74, 74, 73, 73, 73, 72, 72, 72, 72, 71, 71, 71, 71, 70, 70, 70, 70, 69, 69, 69, 69, 68, 68, 68, 68, 67, 67, 67, 67, 66, 66, 66, 66, 66, 65, 65, 65, 65, 65, 64, 64, 64, 64, 64, 63, 63, 63, 63, 63, 63, 62, 62, 62, 62, 62, 62, 61, 61, 61, 61, 61, 61, 60, 60, 60, 60, 60, 60, 59, 59, 59, 59, 59, 59, 59, 58, 58, 58, 58, 58, 58, 58, 57, 57, 57, 57, 57, 57, 57, 56, 56, 56, 56, 56, 56, 56, 56, 55, 55, 55, 55, 55, 55, 55, 55, 54, 54, 54, 54, 54, 54, 54, 54, 53, 53, 53, 53, 53, 53, 53, 53, 53, 52, 52, 52, 52, 52, 52, 52, 52, 52, 52, 51, 51, 51, 51, 51, 51, 51, 51, 51, 51, 50, 50, 50, 50, 50, 50, 50, 50, 50, 50, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 45, 45, 45, 45, 45, 45, 45, 45, 45, 45, 45, 45, 45, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 43, 43, 43, 43, 43, 43, 43, 43, 43, 43, 43, 43, 43, 43, 43, 42, 42, 42, 42, 42, 42, 42, 42, 42, 42, 42, 42, 42, 42, 42, 41, 41, 41, 41, 41, 41, 41, 41, 41, 41, 41, 41, 41, 41, 41, 41, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 38, 38, 38, 38, 38, 38, 38, 38, 38, 38, 38, 38, 38, 38, 38, 38, 38, 38, 38, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 36, 36, 36, 36, 36, 36, 36, 36, 36, 36, 36, 36, 36, 36, 36, 36, 36, 36, 36, 36, 36, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 33, 33, 33, 33, 33, 33, 33, 33, 33, 33, 33, 33, 33, 33, 33, 33, 33, 33, 33, 33, 33, 33, 33, 33, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32 }; // *************** ST7735_PlotdBfs ******************** // Used in the amplitude versus frequency plot, plot bar point at y // 0 to 0.625V scaled on a log plot from min to max // It does output to display // Inputs: y is the y ADC value of the bar plotted // Outputs: none void ST7735_PlotdBfs(int32_t y){ int32_t j; y = y/2; // 0 to 2047 if(y<0) y=0; if(y>511) y=511; // X goes from 0 to 127 // j goes from 159 to 32 // y=511 maps to j=32 // y=0 maps to j=159 j = dBfs[y]; ST7735_DrawFastVLine(X, j, 159-j, ST7735_BLACK); } // *************** ST7735_PlotNext ******************** // Used in all the plots to step the X coordinate one pixel // X steps from 0 to 127, then back to 0 again // It does not output to display // Inputs: none // Outputs: none void ST7735_PlotNext(void){ if(X==127){ X = 0; } else{ X++; } } // *************** ST7735_PlotNextErase ******************** // Used in all the plots to step the X coordinate one pixel // X steps from 0 to 127, then back to 0 again // It clears the vertical space into which the next pixel will be drawn // Inputs: none // Outputs: none void ST7735_PlotNextErase(void){ if(X==127){ X = 0; } else{ X++; } ST7735_DrawFastVLine(X,32,128,ST7735_Color565(228,228,228)); } // Used in all the plots to write buffer to LCD // Example 1 Voltage versus time // ST7735_PlotClear(0,4095); // range from 0 to 4095 // ST7735_PlotPoint(data); ST7735_PlotNext(); // called 128 times // Example 2a Voltage versus time (N data points/pixel, time scale) // ST7735_PlotClear(0,4095); // range from 0 to 4095 // { for(j=0;j15){ StY = 0; } ST7735_DrawString(0,StY," ",StTextColor); return; } ST7735_DrawChar(StX*6,StY*10,ch,StTextColor,ST7735_BLACK, 1); StX++; if(StX>20){ StX = 20; ST7735_DrawChar(StX*6,StY*10,'*',ST7735_RED,ST7735_BLACK, 1); } return; } // *************** ST7735_OutCharTransparent ******************** // Output one character to the LCD // Position determined by ST7735_SetCursor command // Color set by ST7735_SetTextColor, background is transparent // Inputs: 8-bit ASCII character // Outputs: none void ST7735_OutCharTransparent(char ch){ if((ch == 10) || (ch == 13) || (ch == 27)){ StY++; StX=0; if(StY>15){ StY = 0; } ST7735_DrawStringTransparent(0,StY," ",StTextColor); return; } ST7735_DrawCharS(StX*6,StY*10,ch,StTextColor,StTextColor, 1); StX++; if(StX>20){ StX = 20; ST7735_DrawCharS(StX*6,StY*10,'*',ST7735_RED,ST7735_RED, 1); } return; } //********ST7735_OutString***************** // Print a string of characters to the ST7735 LCD. // Position determined by ST7735_SetCursor command // Color set by ST7735_SetTextColor // The string will not automatically wrap. // inputs: ptr pointer to NULL-terminated ASCII string // outputs: none void ST7735_OutString(char *ptr){ while(*ptr){ ST7735_OutChar(*ptr); ptr = ptr + 1; } } //********ST7735_OutStringTransparent***************** // Print a string of characters to the ST7735 LCD. // Position determined by ST7735_SetCursor command // Color set by ST7735_SetTextColor, background is transparent // The string will not automatically wrap. // inputs: ptr pointer to NULL-terminated ASCII string // outputs: none void ST7735_OutStringTransparent(char *ptr){ while(*ptr){ ST7735_OutCharTransparent(*ptr); ptr = ptr + 1; } } // ************** ST7735_SetTextColor ************************ // Sets the color in which the characters will be printed // Background color is fixed at black // Input: 16-bit packed color // Output: none // ******************************************************** void ST7735_SetTextColor(uint16_t color){ StTextColor = color; } int ST7735_open(const char *path, unsigned flags, int llv_fd){ ST7735_InitR(INITR_REDTAB); return 0; } int ST7735_close( int dev_fd){ return 0; } int ST7735_read(int dev_fd, char *buf, unsigned count){char ch; // not implemented return 1; } int ST7735_write(int dev_fd, const char *buf, unsigned count){ unsigned int num=count; while(num){ ST7735_OutChar(*buf); buf++; num--; } return count; } off_t ST7735_lseek(int dev_fd, off_t ioffset, int origin){ return 0; } int ST7735_unlink(const char * path){ return 0; } int ST7735_rename(const char *old_name, const char *new_name){ return 0; } //------------ST7735_InitPrintf------------ // Initialize the ST7735 for printf // Input: none // Output: none void ST7735_InitPrintf(void){int ret_val; FILE *fptr; ST7735_InitR(INITR_REDTAB); ret_val = add_device("st7735", _SSA, ST7735_open, ST7735_close, ST7735_read, ST7735_write, ST7735_lseek, ST7735_unlink, ST7735_rename); if(ret_val) return; // error fptr = fopen("st7735","w"); if(fptr == 0) return; // error freopen("st7735:", "w", stdout); // redirect stdout to uart setvbuf(stdout, NULL, _IONBF, 0); // turn off buffering for stdout } /****************ST7735_sDecOut2*************** converts fixed point number to LCD format signed 32-bit with resolution 0.01 range -99.99 to +99.99 Inputs: signed 32-bit integer part of fixed-point number Outputs: none send exactly 6 characters to the LCD Parameter LCD display 12345 " **.**" 2345 " 23.45" -8100 "-81.00" -102 " -1.02" 31 " 0.31" -12345 "-**.**" */ void ST7735_sDecOut2(int32_t n){ // EE445L lab assignment } /**************ST7735_uBinOut6*************** unsigned 32-bit binary fixed-point with a resolution of 1/64. The full-scale range is from 0 to 999.99. If the integer part is larger than 63999, it signifies an error. The ST7735_uBinOut6 function takes an unsigned 32-bit integer part of the binary fixed-point number and outputs the fixed-point value on the LCD Inputs: unsigned 32-bit integer part of binary fixed-point number Outputs: none send exactly 6 characters to the LCD Parameter LCD display 0 " 0.00" 1 " 0.01" 16 " 0.25" 25 " 0.39" 125 " 1.95" 128 " 2.00" 1250 " 19.53" 7500 "117.19" 63999 "999.99" 64000 "***.**" */ void ST7735_uBinOut6(uint32_t n){ // EE445L lab assignment } /**************ST7735_XYplotInit*************** Specify the X and Y axes for an x-y scatter plot Draw the title and clear the plot area Inputs: title ASCII string to label the plot, null-termination minX smallest X data value allowed, resolution= 0.001 maxX largest X data value allowed, resolution= 0.001 minY smallest Y data value allowed, resolution= 0.001 maxY largest Y data value allowed, resolution= 0.001 Outputs: none assumes minX < maxX, and miny < maxY */ void ST7735_XYplotInit(char *title, int32_t minX, int32_t maxX, int32_t minY, int32_t maxY){ // EE445L lab assignment } /**************ST7735_XYplot*************** Plot an array of (x,y) data Inputs: num number of data points in the two arrays bufX array of 32-bit fixed-point data, resolution= 0.001 bufY array of 32-bit fixed-point data, resolution= 0.001 Outputs: none assumes ST7735_XYplotInit has been previously called neglect any points outside the minX maxY minY maxY bounds */ void ST7735_XYplot(uint32_t num, int32_t bufX[], int32_t bufY[]){ // EE445L lab assignment } // plotLine function that is used when dx is greater than dy void plotLineX(uint16_t x1, uint16_t y1, uint16_t x2, uint16_t y2, uint16_t color){ int32_t d = 0; int32_t dx = x2-x1; int32_t dy = y2-y1; int32_t plotY = 0; // int32_t yi = 1 // y = y0 d = 2*abs(dy) - dx; plotY = y1; for(int32_t plotX = x1; plotX < x2; plotX++){ if(abs(dx) > abs(dy)){ ST7735_DrawPixel(plotX, plotY, color); ST7735_DrawPixel(plotX, plotY+1, color); }else{ ST7735_DrawPixel(plotX, plotY, color); ST7735_DrawPixel(plotX+1, plotY, color); } if(d > 0){ if(dy < 0){ plotY--; }else{ plotY++; } d -= 2*dx; } d += 2*abs(dy); } } // plotLine function that is used when dy is greater than dx void plotLineY(uint16_t x1, uint16_t y1, uint16_t x2, uint16_t y2, uint16_t color){ int32_t d = 0; int32_t dx = x2-x1; int32_t dy = y2-y1; int32_t plotX = 0; // int32_t yi = 1 // y = y0 d = 2*abs(dx) - dy; plotX = x1; for(int32_t plotY = y1; plotY < y2; plotY++){ if(abs(dx) > abs(dy)){ ST7735_DrawPixel(plotX, plotY, color); ST7735_DrawPixel(plotX, plotY+1, color); }else{ ST7735_DrawPixel(plotX, plotY, color); ST7735_DrawPixel(plotX+1, plotY, color); } if(d > 0){ if(dx < 0){ plotX--; }else{ plotX++; } d -= 2*dy; } d += 2*abs(dx); } } //************* ST7735_Line******************************************** // Draws one line on the ST7735 color LCD // Inputs: (x1,y1) is the start point // (x2,y2) is the end point // x1,x2 are horizontal positions, columns from the left edge // must be less than 128 // 0 is on the left, 126 is near the right // y1,y2 are vertical positions, rows from the top edge // must be less than 160 // 159 is near the wires, 0 is the side opposite the wires // color 16-bit color, which can be produced by ST7735_Color565() // Output: none void ST7735_Line(uint16_t x1, uint16_t y1, uint16_t x2, uint16_t y2, uint16_t color){ if(abs(y2 - y1) < abs(x2 - x1)){ // if dx is greater than dy if(x1 < x2){ // if x1 is to the left of x2 plotLineX(x1, y1, x2, y2, color); }else{ plotLineX(x2, y2, x1, y1, color); } }else{ if(y1 < y2){ // if y1 is below y2 plotLineY(x1, y1, x2, y2, color); }else{ plotLineY(x2, y2, x1, y1, color); } } } // *************** ST7735_SetX ******************** // Used in all the plots to change the X coordinate to new location // X exists in the range from 0 to 127, // Input values less than 0 get changed to 0, // Input values greater than 127 get changed to 127 // It does not output to display // Inputs: newX is the new value that the global X will be // Outputs: none void ST7735_SetX(int32_t newX){ if(newX > 127){ X = 127; }else if(newX < 0){ X = 0; }else{ X = newX; } }