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inc/ADC1.h

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+/* ADC1.h
+ * Students put your names here
+ * Modified: put the date here
+ * 12-bit ADC input on ADC1 channel 5, PB18
+ */
+
+/**
+ * @file      ADC1.h
+ * @brief     12-bit ADC input
+ * @details   12-bit ADC input on ADC1 channel 5, PB18<br>
+ * @version   ECE319K Spring 2024
+ * @author    Your names go here
+ * @copyright Lab solution, do not post,
+ * @warning   AS-IS
+ * @note      For more information see  http://users.ece.utexas.edu/~valvano/
+ * @date      December 29, 2023
+  <table>
+<caption id="Lab7pins">Pins for the 12-bit ADC</caption>
+<tr><th>Pin <th>GPIO<th>Hardware
+<tr><td>PB18 <td>input<td>connected to slide-pot sensor
+</table>
+  ******************************************************************************/
+#ifndef __ADC1_H__
+#define __ADC1_H__
+
+/**
+ * Initialize 12-bit ADC
+ *    - PB18 analog input
+ * @param none
+ * @return none
+ * @brief  Initialize ADC
+ * @note LaunchPad_Init has been called; this program should not reset Port B
+ */
+void ADCinit(void);
+// write code to initialize ADC1 channel 5, PB18
+// Your measurement will be connected to PB18
+// 12-bit mode, 0 to 3.3V, right justified
+// software trigger, no averaging
+
+/**
+ * Input from 12-bit ADC
+ * @param none
+ * @return sample 12-bit conversion
+ * @brief  Input from PB18
+ */
+uint32_t ADCin(void);
+  // write code to sample ADC1 channel 5, PB18 once
+  // return digital result (0 to 4095)
+
+
+/**
+ * Convert raw 12-bit ADC to fixed point distance
+ * @param input 12-bit ADC raw sample
+ * @return distance as 0.001cm fixed point number
+ * @brief  Input from PB18
+ */
+uint32_t Convert(uint32_t input);
+//    determine constants k1 k2 to fit Position=(k1*Data + k2)>>12
+
+
+/**
+ * Convert raw 12-bit ADC to distance
+ * @param input 12-bit ADC raw sample
+ * @return distance as a floating-point number in cm
+ * @brief  Input from PB18
+ */
+float FloatConvert(uint32_t input);
+// do not use this function
+// it is added just to show you how SLOW floating point in on a Cortex M0+
+
+#endif // __ADC1_H__