Cortex Challenge Team / Mbed 2 deprecated Nucleo_read_analog_set

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Dependencies:   mbed

Fork of Nucleo-Analog_read by Cortex Challenge Team

main.cpp@5:a57d93f35f76, 2015-05-12 (annotated)

Committer:
Foxnec
Date:
Tue May 12 09:06:50 2015 +0000
Revision:
5:a57d93f35f76
Parent:
4:da95e07f350a 
Changes to comments

Who changed what in which revision?

UserRevisionLine numberNew contents of line
dousape2 2:eb5ee8191175 1 /**********************************************************************************
dousape2 2:eb5ee8191175 2 * @file main.cpp
dousape2 3:a87ea8280bcf 3 * @author Petr Dousa
dousape2 3:a87ea8280bcf 4 * @version V1.00
dousape2 3:a87ea8280bcf 5 * @date 22-March-2015
dousape2 2:eb5ee8191175 6 * @brief Read analog value and write it to serial.
Foxnec 4:da95e07f350a 7 * Some settings can be set through serial.
dousape2 2:eb5ee8191175 8 * Serial speed is set to 115200.
dousape2 2:eb5ee8191175 9 ***********************************************************************************/
dousape2 2:eb5ee8191175 10
dousape2 2:eb5ee8191175 11 /**********************************************************************************/
dousape2 2:eb5ee8191175 12 /* Table of A/D pins on Nucleo F303 (LQFP64) */
dousape2 2:eb5ee8191175 13 /**********************************************************************************/
dousape2 2:eb5ee8191175 14 /* LQFP64 pin | Nucleo pin | ST Pin | AD Number | Channel */
dousape2 2:eb5ee8191175 15 /* 8 | A5 | PC_0 | ADC12 | 6 */
dousape2 2:eb5ee8191175 16 /* 9 | A4 | PC_1 | ADC12 | 7 */
dousape2 2:eb5ee8191175 17 /* 14 | A0 | PA_0 | ADC1 | 1 */
dousape2 2:eb5ee8191175 18 /* 15 | A1 | PA_1 | ADC1 | 2 */
dousape2 2:eb5ee8191175 19 /* 16 | D1 | PA_2 | ADC1 | 3 */
dousape2 2:eb5ee8191175 20 /* 17 | D0 | PA_3 | ADC1 | 4 */
dousape2 2:eb5ee8191175 21 /* 20 | A2 | PA_4 | ADC2 | 1 */
dousape2 2:eb5ee8191175 22 /* 21 | D13 | PA_5 | ADC2 | 2 */
dousape2 2:eb5ee8191175 23 /* 22 | D12 | PA_6 | ADC2 | 3 */
dousape2 2:eb5ee8191175 24 /* 23 | D11 | PA_7 | ADC2 | 4 */
dousape2 2:eb5ee8191175 25 /* 26 | A3 | PB_0 | ADC3 | 12 */
dousape2 2:eb5ee8191175 26 /**********************************************************************************/
dousape2 2:eb5ee8191175 27
dousape2 2:eb5ee8191175 28
dousape2 2:eb5ee8191175 29 /* Includes ----------------------------------------------------------------------*/
dousape2 0:242976b62902 30 #include "mbed.h"
dousape2 0:242976b62902 31
dousape2 2:eb5ee8191175 32 /* Defines -----------------------------------------------------------------------*/
Foxnec 5:a57d93f35f76 33 #define voltage 3300 //voltage in mV, used in Nucleo kits
Foxnec 5:a57d93f35f76 34 #define mv(x) ((x*voltage)/0xFFFF) // raw value to millvolts
dousape2 1:dc5a274adc7d 35
dousape2 3:a87ea8280bcf 36 /* Function prototypes -----------------------------------------------------------*/
dousape2 3:a87ea8280bcf 37
dousape2 2:eb5ee8191175 38 /* Variables ---------------------------------------------------------------------*/
Foxnec 5:a57d93f35f76 39 int voltages =0;
Foxnec 5:a57d93f35f76 40 bool start = true;
dousape2 1:dc5a274adc7d 41
dousape2 2:eb5ee8191175 42 //mbed - initialization of peripherals
Foxnec 5:a57d93f35f76 43 AnalogIn analog_value(A0); // initialize analog input A0
Foxnec 5:a57d93f35f76 44 Serial pc(SERIAL_TX, SERIAL_RX);// initialize Serial to connect to PC
Foxnec 5:a57d93f35f76 45 DigitalOut led(LED1); // initialize LED
Foxnec 5:a57d93f35f76 46 Ticker toggle_ticker; // initialize ticker
dousape2 2:eb5ee8191175 47
dousape2 2:eb5ee8191175 48 /* Functions----------------------------------------------------------------------*/
dousape2 0:242976b62902 49
dousape2 2:eb5ee8191175 50 /***********************************************************************************
dousape2 2:eb5ee8191175 51 * Function Name : toggle.
dousape2 2:eb5ee8191175 52 * Description : Read analog value, compare, blink with LED and send value to serial.
dousape2 2:eb5ee8191175 53 * Input : None.
dousape2 2:eb5ee8191175 54 * Output : None.
dousape2 2:eb5ee8191175 55 * Return : None.
dousape2 2:eb5ee8191175 56 ***********************************************************************************/
dousape2 1:dc5a274adc7d 57 void toggle()
dousape2 1:dc5a274adc7d 58 {
dousape2 1:dc5a274adc7d 59 int meas;
dousape2 1:dc5a274adc7d 60
Foxnec 5:a57d93f35f76 61 meas = analog_value.read_u16(); // Converts and reads the analog input value (value from 0.0 to 0xFFFF)
Foxnec 5:a57d93f35f76 62 meas = mv(meas); // Changes the value to be in the 0 to 3300 range (millivolts)
dousape2 1:dc5a274adc7d 63
dousape2 1:dc5a274adc7d 64
dousape2 1:dc5a274adc7d 65 led= !led;
Foxnec 5:a57d93f35f76 66 if (meas > voltages ) { // If the value is greater than set voltage
Foxnec 5:a57d93f35f76 67 start = true; //start send data to Serial
dousape2 1:dc5a274adc7d 68 }
dousape2 1:dc5a274adc7d 69 if(start) {
dousape2 2:eb5ee8191175 70 while(!pc.writeable()); // wait to be serial available for sending data
dousape2 2:eb5ee8191175 71 pc.printf("%d\n", meas); // send data to Serial
dousape2 1:dc5a274adc7d 72 }
dousape2 1:dc5a274adc7d 73 }
dousape2 1:dc5a274adc7d 74
dousape2 2:eb5ee8191175 75 /***********************************************************************************
dousape2 2:eb5ee8191175 76 * Function Name : flushSerialPort.
Foxnec 5:a57d93f35f76 77 * Description : Serial flush routine.
dousape2 2:eb5ee8191175 78 * Input : None.
dousape2 2:eb5ee8191175 79 * Output : None.
dousape2 2:eb5ee8191175 80 * Return : None.
dousape2 2:eb5ee8191175 81 ***********************************************************************************/
dousape2 1:dc5a274adc7d 82 void flushSerialPort()
dousape2 1:dc5a274adc7d 83 {
dousape2 1:dc5a274adc7d 84 while(pc.readable())
dousape2 1:dc5a274adc7d 85 pc.getc();
dousape2 1:dc5a274adc7d 86 return;
dousape2 1:dc5a274adc7d 87 }
dousape2 1:dc5a274adc7d 88
dousape2 2:eb5ee8191175 89 /***********************************************************************************
dousape2 2:eb5ee8191175 90 * Function Name : menu.
dousape2 2:eb5ee8191175 91 * Description : Print menu to serial.
dousape2 2:eb5ee8191175 92 * Input : None.
dousape2 2:eb5ee8191175 93 * Output : None.
dousape2 2:eb5ee8191175 94 * Return : None.
dousape2 2:eb5ee8191175 95 ***********************************************************************************/
dousape2 2:eb5ee8191175 96 void menu()
dousape2 2:eb5ee8191175 97 {
dousape2 2:eb5ee8191175 98 while(!pc.writeable()); // wait to be serial available for sending data
dousape2 2:eb5ee8191175 99 pc.printf("HELP - MENU\n"); // send text to Serial
dousape2 2:eb5ee8191175 100 while(!pc.writeable());
Foxnec 5:a57d93f35f76 101 pc.printf("Data sent to PC are in millivolts(mV).\n");
dousape2 2:eb5ee8191175 102 while(!pc.writeable());
Foxnec 5:a57d93f35f76 103 pc.printf("Input format: \"xx yy\", where xx is the setting and yy is the value.\n");
dousape2 2:eb5ee8191175 104 while(!pc.writeable());
Foxnec 5:a57d93f35f76 105 pc.printf("01 y.yyy - set period [seconds] to send data to PC and start reading value, example: 01 0.01\n");
dousape2 2:eb5ee8191175 106 while(!pc.writeable());
Foxnec 5:a57d93f35f76 107 pc.printf("02 0 - stop reading value, example: 02 0\n");
dousape2 2:eb5ee8191175 108 while(!pc.writeable());
Foxnec 5:a57d93f35f76 109 pc.printf("03 yyyy - Wait for minimum voltage [mV] (to 3299) and send data, example:03 2000\n");
dousape2 2:eb5ee8191175 110 while(!pc.writeable());
dousape2 2:eb5ee8191175 111 pc.printf("end HELP\n");
dousape2 2:eb5ee8191175 112 }
dousape2 2:eb5ee8191175 113
dousape2 2:eb5ee8191175 114 /***********************************************************************************
dousape2 2:eb5ee8191175 115 * Function Name : main.
dousape2 2:eb5ee8191175 116 * Description : Main routine.
dousape2 2:eb5ee8191175 117 * Input : None.
dousape2 2:eb5ee8191175 118 * Output : None.
dousape2 2:eb5ee8191175 119 * Return : None.
dousape2 2:eb5ee8191175 120 ***********************************************************************************/
dousape2 0:242976b62902 121 int main()
dousape2 0:242976b62902 122 {
dousape2 2:eb5ee8191175 123 // variables to read from serials
Foxnec 5:a57d93f35f76 124 int prijData=0; // check if data are set correctly
dousape2 2:eb5ee8191175 125 int Data1=0; // first data from serial
dousape2 2:eb5ee8191175 126 float Data2=0; // second data from serial
dousape2 2:eb5ee8191175 127
Foxnec 5:a57d93f35f76 128 pc.baud(115200); //set serial speed to 115200
dousape2 2:eb5ee8191175 129
Foxnec 5:a57d93f35f76 130 toggle_ticker.detach(); //detach all functions from ticker
Foxnec 5:a57d93f35f76 131 toggle_ticker.attach(&toggle, 1); // 1 second passed, call function toggle
dousape2 2:eb5ee8191175 132
dousape2 2:eb5ee8191175 133 pc.printf("\nAnalogIn example, data (numbers) are in mV.\n");
dousape2 2:eb5ee8191175 134 menu(); //print menu
dousape2 0:242976b62902 135
dousape2 0:242976b62902 136 while(1) {
dousape2 2:eb5ee8191175 137
dousape2 2:eb5ee8191175 138 //accepted data from serial
dousape2 2:eb5ee8191175 139 prijData=pc.scanf("%d",&Data1); // read number from serial
Foxnec 5:a57d93f35f76 140 if(prijData==1 && (Data1>=1 && Data1<=3)) { // test if number was read and if it is between 1 and 3
dousape2 2:eb5ee8191175 141 prijData=pc.scanf("%f",&Data2); // read float number from serial
dousape2 2:eb5ee8191175 142 if(prijData==1) {
dousape2 2:eb5ee8191175 143 prijData=2; // set variable to set measure of values
dousape2 2:eb5ee8191175 144 } else {
Foxnec 5:a57d93f35f76 145 flushSerialPort(); // clear serial port, discard all data in the buffer
dousape2 2:eb5ee8191175 146 prijData=0; // set variable to print menu
dousape2 2:eb5ee8191175 147 }
dousape2 2:eb5ee8191175 148 } else {
Foxnec 5:a57d93f35f76 149 flushSerialPort(); // clear serial port, discard all data in the buffer
dousape2 2:eb5ee8191175 150 prijData=0; // set variable to print menu
dousape2 2:eb5ee8191175 151 }
dousape2 2:eb5ee8191175 152
dousape2 1:dc5a274adc7d 153 if(prijData==2) {
dousape2 2:eb5ee8191175 154 if(Data1==1) { // change time to call function toggle
Foxnec 5:a57d93f35f76 155 toggle_ticker.detach(); //detach all functions from ticker
dousape2 2:eb5ee8191175 156 toggle_ticker.attach(&toggle, Data2); // Data2 seconds was passed, call function toggle
dousape2 2:eb5ee8191175 157 } else if(Data1==2) { // stop call function toggle
Foxnec 5:a57d93f35f76 158 toggle_ticker.detach(); //detach all functions from ticker
dousape2 2:eb5ee8191175 159 } else if(Data1==3) { //set variables, which are use in toggle
dousape2 1:dc5a274adc7d 160 voltages=(int)Data2;
dousape2 1:dc5a274adc7d 161 start = false;
dousape2 1:dc5a274adc7d 162 }
dousape2 0:242976b62902 163 } else {
dousape2 2:eb5ee8191175 164 menu(); // print menu
Foxnec 5:a57d93f35f76 165 flushSerialPort(); // clear serial port, discard all data in the buffer
dousape2 2:eb5ee8191175 166
dousape2 0:242976b62902 167 }
dousape2 0:242976b62902 168 }
dousape2 0:242976b62902 169 }