Cortex Challenge Team / Mbed 2 deprecated Nucleo-ADC_with_UART_output

Demo: ST Nucleo ADC with UART output. Works on all Nucleos.

Dependencies:   mbed

Fork of Nucleo-ADC_with_UART_output by Cortex Challenge Team

main.cpp@1:59ea769dee88, 2015-03-19 (annotated)

Committer:
Foxnec
Date:
Thu Mar 19 17:45:37 2015 +0000
Revision:
1:59ea769dee88
Parent:
0:dade2710823b 
Final version

Who changed what in which revision?

UserRevisionLine numberNew contents of line
Foxnec 1:59ea769dee88 1 /**********************************************************************************
Foxnec 1:59ea769dee88 2 * @file main.cpp
Foxnec 1:59ea769dee88 3 * @author Daniel Toms
Foxnec 1:59ea769dee88 4 * @version V0.1
Foxnec 1:59ea769dee88 5 * @date 09-March-2015
Foxnec 1:59ea769dee88 6 * @brief Simple ADC convertor example for Nucleo without DMA.
Foxnec 1:59ea769dee88 7 * The value is written to the serial port every second at 115200baud.
Foxnec 1:59ea769dee88 8 * Compatible with all the NUCLEOs.
Foxnec 1:59ea769dee88 9 ***********************************************************************************/
Foxnec 0:dade2710823b 10
Foxnec 1:59ea769dee88 11 /**********************************************************************************/
Foxnec 1:59ea769dee88 12 /* Table of A/D - D/A pins on Nucleo F303 (LQFP64) */
Foxnec 1:59ea769dee88 13 /**********************************************************************************/
Foxnec 1:59ea769dee88 14 /* LQFP64 pin | Nucleo pin | ST Pin | AD/DA Number | Channel */
Foxnec 1:59ea769dee88 15 /* 8 | A5 | PC_0 | ADC12 | 6 */
Foxnec 1:59ea769dee88 16 /* 9 | A4 | PC_1 | ADC12 | 7 */
Foxnec 1:59ea769dee88 17 /* 14 | A0 | PA_0 | ADC1 | 1 */
Foxnec 1:59ea769dee88 18 /* 15 | A1 | PA_1 | ADC1 | 2 */
Foxnec 1:59ea769dee88 19 /* 16 | D1 | PA_2 | ADC1 | 3 */
Foxnec 1:59ea769dee88 20 /* 17 | D0 | PA_3 | ADC1 | 4 */
Foxnec 1:59ea769dee88 21 /* 20 | A2 | PA_4 | ADC2 | 1 */
Foxnec 1:59ea769dee88 22 /* 21 | D13 | PA_5 | ADC2 | 2 */
Foxnec 1:59ea769dee88 23 /* 22 | D12 | PA_6 | ADC2 | 3 */
Foxnec 1:59ea769dee88 24 /* 23 | D11 | PA_7 | ADC2 | 4 */
Foxnec 1:59ea769dee88 25 /* 26 | A3 | PB_0 | ADC3 | 12 */
Foxnec 1:59ea769dee88 26 /**********************************************************************************/
Foxnec 1:59ea769dee88 27 /* 20 | A2 | PA_4 | DAC1 | 1 */
Foxnec 1:59ea769dee88 28 /* 21 | D13 | PA_5 | DAC1 | 2 */
Foxnec 1:59ea769dee88 29 /**********************************************************************************/
Foxnec 0:dade2710823b 30
Foxnec 1:59ea769dee88 31 /* Includes ----------------------------------------------------------------------*/
Foxnec 1:59ea769dee88 32 #include "mbed.h"
Foxnec 1:59ea769dee88 33
Foxnec 1:59ea769dee88 34 /* Defines -----------------------------------------------------------------------*/
Foxnec 0:dade2710823b 35 // Calculate the corresponding acquisition measure for a given value in mV
Foxnec 0:dade2710823b 36 #define rawmeas(x) ((0xFFFF*x)/3300)
Foxnec 0:dade2710823b 37 // Calculate the corresponding mV value from measured voltage
Foxnec 0:dade2710823b 38 #define mv(x) ((x*3300)/0xFFFF)
Foxnec 1:59ea769dee88 39
Foxnec 1:59ea769dee88 40 /* Function prototypes -----------------------------------------------------------*/
Foxnec 0:dade2710823b 41
Foxnec 1:59ea769dee88 42 /* Variables ---------------------------------------------------------------------*/
Foxnec 1:59ea769dee88 43
Foxnec 1:59ea769dee88 44 //mbed - initialization of peripherals
Foxnec 1:59ea769dee88 45 AnalogIn analog_value(A0);
Foxnec 1:59ea769dee88 46 Serial pc(SERIAL_TX, SERIAL_RX);
Foxnec 1:59ea769dee88 47 DigitalOut myled(LED1);
Foxnec 1:59ea769dee88 48
Foxnec 1:59ea769dee88 49 /* Functions----------------------------------------------------------------------*/
Foxnec 1:59ea769dee88 50
Foxnec 1:59ea769dee88 51
Foxnec 1:59ea769dee88 52 /***********************************************************************************
Foxnec 1:59ea769dee88 53 * Function Name : main.
Foxnec 1:59ea769dee88 54 * Description : Main routine.
Foxnec 1:59ea769dee88 55 * Input : None.
Foxnec 1:59ea769dee88 56 * Output : None.
Foxnec 1:59ea769dee88 57 * Return : None.
Foxnec 1:59ea769dee88 58 ***********************************************************************************/
Foxnec 0:dade2710823b 59 int main() {
Foxnec 0:dade2710823b 60
Foxnec 1:59ea769dee88 61 pc.baud(115200); //Sets the serial port baud rate to 115200baud.
Foxnec 0:dade2710823b 62
Foxnec 1:59ea769dee88 63 while(1) { // infinite loop
Foxnec 1:59ea769dee88 64 uint16_t meas = analog_value.read_u16(); // Converts and read the analog input value
Foxnec 1:59ea769dee88 65 if (meas > rawmeas(1000)) { // If the value is greater than 1000 mV toggle the LED
Foxnec 1:59ea769dee88 66 myled = !myled; // toggles the LED
Foxnec 0:dade2710823b 67 }
Foxnec 0:dade2710823b 68
Foxnec 1:59ea769dee88 69 pc.printf("Measured value: %d\n", meas); // Prints the measured value in millivolts
Foxnec 0:dade2710823b 70 pc.printf("%d mV\n", mv(meas));
Foxnec 0:dade2710823b 71
Foxnec 1:59ea769dee88 72 wait(1); // Waits for one second between measures.
Foxnec 1:59ea769dee88 73 // You can use wait_ms(x) and wait_us(x) to wait for shorter periods.
Foxnec 0:dade2710823b 74
Foxnec 0:dade2710823b 75 }
Foxnec 0:dade2710823b 76 }