RYUICHI NAKAYAMA
/
Nucleo_analog_loop
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Revision 0:c36b20cba727, committed 2016-08-06
- Comitter:
- dosukoidaisaku
- Date:
- Sat Aug 06 07:15:22 2016 +0000
- Commit message:
- q
Changed in this revision
| main.cpp | Show annotated file Show diff for this revision Revisions of this file |
| mbed.bld | Show annotated file Show diff for this revision Revisions of this file |
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp Sat Aug 06 07:15:22 2016 +0000
@@ -0,0 +1,37 @@
+#include "mbed.h"
+
+AnalogIn in(A0);
+
+#if !DEVICE_ANALOGOUT
+#error You cannot use this example as the AnalogOut is not supported on this device.
+#else
+AnalogOut out(PA_4);
+#endif
+
+DigitalOut led(LED1);
+
+int main()
+{
+ printf("\nAnalog loop example\n");
+ printf("*** Connect A0 and PA_4 pins together ***\n");
+ while(1) {
+ for (float out_value = 0.0f; out_value < 1.1f; out_value += 0.1f) {
+ // Output value using DAC
+ out.write(out_value);
+ wait(0.1);
+ // Read ADC input
+ float in_value = in.read();
+ // Display difference between two values
+ float diff = fabs(out_value - in_value);
+ printf("(out:%.4f) - (in:%.4f) = (%.4f) ", out_value, in_value, diff);
+ if (diff > 0.05f) {
+ printf("FAIL\n");
+ } else {
+ printf("OK\n");
+ printf("\033[1A"); // Moves cursor up of 1 line
+ }
+ led = !led;
+ }
+ }
+}
+
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/mbed.bld Sat Aug 06 07:15:22 2016 +0000 @@ -0,0 +1,1 @@ +http://mbed.org/users/mbed_official/code/mbed/builds/f9eeca106725 \ No newline at end of file