Andrea Pallotta / Mbed 2 deprecated Nucleo_analog_loop

import test

Dependencies:   mbed

main.cpp@2:b4f8b72a22ec, 2018-02-25 (annotated)

Committer:
andrewPV
Date:
Sun Feb 25 14:34:52 2018 +0000
Revision:
2:b4f8b72a22ec
Parent:
1:89aa667d1a9b 
Importing test

Who changed what in which revision?

UserRevisionLine numberNew contents of line
bcostm 0:bf84ee4ea1d2 1 #include "mbed.h"
bcostm 0:bf84ee4ea1d2 2
andrewPV 2:b4f8b72a22ec 3
bcostm 0:bf84ee4ea1d2 4 AnalogIn in(A0);
bcostm 0:bf84ee4ea1d2 5
bcostm 0:bf84ee4ea1d2 6 #if !DEVICE_ANALOGOUT
bcostm 0:bf84ee4ea1d2 7 #error You cannot use this example as the AnalogOut is not supported on this device.
bcostm 0:bf84ee4ea1d2 8 #else
bcostm 0:bf84ee4ea1d2 9 AnalogOut out(PA_4);
bcostm 0:bf84ee4ea1d2 10 #endif
bcostm 0:bf84ee4ea1d2 11
andrewPV 2:b4f8b72a22ec 12 /* #if !DEVICE_FILEHANDLE
andrewPV 2:b4f8b72a22ec 13 #error You cannot use this example as the FileHandle is not supported on this device.
andrewPV 2:b4f8b72a22ec 14 #else
andrewPV 2:b4f8b72a22ec 15 LocalFileSystem local("local"); // Create the local filesystem under the name "local"
andrewPV 2:b4f8b72a22ec 16 #endif */
andrewPV 2:b4f8b72a22ec 17
bcostm 0:bf84ee4ea1d2 18 DigitalOut led(LED1);
andrewPV 2:b4f8b72a22ec 19 DigitalOut set(PB_0);
bcostm 0:bf84ee4ea1d2 20
andrewPV 1:89aa667d1a9b 21
bcostm 0:bf84ee4ea1d2 22 int main()
bcostm 0:bf84ee4ea1d2 23 {
andrewPV 2:b4f8b72a22ec 24 /* FILE *fp = fopen("/DETAILS.TXT", "w"); // Open "out.txt" on the local file system for writing
andrewPV 1:89aa667d1a9b 25 fprintf(fp, "Hello World!");
andrewPV 2:b4f8b72a22ec 26 fclose(fp); */
andrewPV 1:89aa667d1a9b 27
bcostm 0:bf84ee4ea1d2 28 printf("\nAnalog loop example\n");
bcostm 0:bf84ee4ea1d2 29 printf("*** Connect A0 and PA_4 pins together ***\n");
andrewPV 2:b4f8b72a22ec 30 int i (0);
andrewPV 2:b4f8b72a22ec 31 while(i <= 10) {
andrewPV 2:b4f8b72a22ec 32 set.write(0);
andrewPV 2:b4f8b72a22ec 33 float in_value = in.read();
bcostm 0:bf84ee4ea1d2 34 for (float out_value = 0.0f; out_value < 1.1f; out_value += 0.1f) {
bcostm 0:bf84ee4ea1d2 35 // Output value using DAC
bcostm 0:bf84ee4ea1d2 36 out.write(out_value);
bcostm 0:bf84ee4ea1d2 37 wait(0.1);
bcostm 0:bf84ee4ea1d2 38 // Read ADC input
bcostm 0:bf84ee4ea1d2 39 float in_value = in.read();
bcostm 0:bf84ee4ea1d2 40 // Display difference between two values
andrewPV 2:b4f8b72a22ec 41 float diff = fabs(out_value - in_value)*3.3f;
andrewPV 2:b4f8b72a22ec 42 in_value *= 3.3f;
andrewPV 2:b4f8b72a22ec 43 out_value *= 3.3f;
andrewPV 2:b4f8b72a22ec 44 printf("(out:%.4f V) - (in:%.4f V) = (%.4f V) ", out_value, in_value, diff);
andrewPV 2:b4f8b72a22ec 45 out_value /= 3.3f;
andrewPV 2:b4f8b72a22ec 46 in_value /= 3.3f;
andrewPV 2:b4f8b72a22ec 47 diff /= 3.3f;
bcostm 0:bf84ee4ea1d2 48 if (diff > 0.05f) {
bcostm 0:bf84ee4ea1d2 49 printf("FAIL\n");
bcostm 0:bf84ee4ea1d2 50 } else {
bcostm 0:bf84ee4ea1d2 51 printf("OK\n");
bcostm 0:bf84ee4ea1d2 52 printf("\033[1A"); // Moves cursor up of 1 line
bcostm 0:bf84ee4ea1d2 53 }
bcostm 0:bf84ee4ea1d2 54 led = !led;
andrewPV 2:b4f8b72a22ec 55 ++i;
bcostm 0:bf84ee4ea1d2 56 }
andrewPV 2:b4f8b72a22ec 57 /* in_value *= 3.3f;
andrewPV 2:b4f8b72a22ec 58 printf("(out:%.4f V)", in_value);
andrewPV 2:b4f8b72a22ec 59 ++i; */
bcostm 0:bf84ee4ea1d2 60 }
bcostm 0:bf84ee4ea1d2 61 }
bcostm 0:bf84ee4ea1d2 62