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2026-06-12 02:55:04 -07:00
commit 30406f4f49
2040 changed files with 571534 additions and 0 deletions
--- a/DAC/DACtestmain.c
+++ b/DAC/DACtestmain.c
@@ -0,0 +1,78 @@
+/* DACtestmain.c
+ * Jonathan Valvano
+ * November 30, 2022
+ * Derived from timx_timer_mode_periodic_sleep_LP_MSPM0G3507_nortos_ticlang
+ *              gpio_toggle_output_LP_MSPM0G3507_nortos_ticlang
+ *              dac12_fixed_voltage_vref_internal_LP_MSPM0G3507_nortos_ticlang
+ *              dac12_fifo_timer_event_LP_MSPM0G3507_nortos_ticlang
+ */
+
+
+#include <ti/devices/msp/msp.h>
+#include "../inc/LaunchPad.h"
+#include "../inc/Clock.h"
+#include "../inc/Timer.h"
+#include "../inc/DAC.h"
+//  PA0 is red LED1,   index 0 in IOMUX PINCM table
+// PB22 is BLUE LED2,  index 49 in IOMUX PINCM table
+// PB26 is RED LED2,   index 56 in IOMUX PINCM table
+// PB27 is GREEN LED2, index 57 in IOMUX PINCM table
+// PA18 is S2 positive logic switch,  index 39 in IOMUX PINCM table
+// PB21 is S3 negative logic switch,  index 48 in IOMUX PINCM table
+
+// PA15 J3.30  DACout
+uint32_t Data;
+int main1(void){ // static test
+ // __disable_irq();
+//  Clock_Init40MHz();
+  Clock_Init(OSCFREQ32MHZ);
+  Data=2048;
+  LaunchPad_Init();
+  DAC_Init();
+  while(1){
+    Data = Data+1;
+    if(Data > 4095) Data = 0;
+    DAC_Out(Data);
+    Clock_Delay1ms(1); // about 1ms
+  }
+}
+
+const uint16_t Wave[64] = {
+  2048,2249,2447,2642,2831,3013,3185,3347,3495,3630,3750,
+  3853,3939,4007,4056,4085,4095,4085,4056,4007,3939,3853,
+  3750,3630,3495,3347,3185,3013,2831,2642,2447,2249,2048,
+  1847,1649,1454,1265,1083,911,749,601,466,346,243,
+  157,89,40,11,1,11,40,89,157,243,346,
+  466,601,749,911,1083,1265,1454,1649,1847
+};
+uint32_t Index;
+int main(void){ // dynamic test
+  __disable_irq();
+ // Clock_Init(OSCFREQ32MHZ);
+ // Clock_Init40MHz();
+  Clock_Init80MHz(0);
+  LaunchPad_Init();
+  Index = 0;
+
+  DAC_Init();
+ // TimerG0_IntArm(5,32,2); // interrupt frequency = 32MHz/5/32 = 200kHz
+ // TimerG0_IntArm(5,20,2); // interrupt frequency = 20MHz/5/20 = 200kHz
+  TimerG0_IntArm(5,40,2); // interrupt frequency = 40MHz/5/40 = 200kHz
+  // wave frequency = interrupt frequency/table size= 200kHz/64= 3.125kHz
+  __enable_irq();
+  while(1){
+     __WFI();
+  }
+}
+// 200kHz/64 = 3.125kHz
+void TIMG0_IRQHandler(void){
+  if((TIMG0->CPU_INT.IIDX) == 1){ // this will acknowledge
+    GPIOB->DOUTTGL31_0 = GREEN;
+    Index = Index+1;
+    if(Index > 63) Index = 0;
+    DAC_Out(Wave[Index]);
+  }
+}
+
+
+