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Revision 0:caf81a29d035, committed 2018-09-29
- Comitter:
- joaomazza
- Date:
- Sat Sep 29 19:14:08 2018 +0000
- Commit message:
- d
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 |
diff -r 000000000000 -r caf81a29d035 main.cpp --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/main.cpp Sat Sep 29 19:14:08 2018 +0000 @@ -0,0 +1,35 @@ +#include "mbed.h" +#define NUM_COUNTS 2 + +InterruptIn button(PB_9); +DigitalOut simulation(PA_8); +int count; +float t1 = 0, total = 0, RPM; +Timer t; +Serial pc(PA_9, PA_10); // tx and rx + +void flip() { + t.start(); + count++; + total += t.read_ms() - t1; + t1 = t.read_ms(); +} + +int main() { + button.rise(&flip); // attach the address of the flip function to the rising edge + while(1) { // wait around, interrupts will interrupt this! + if(count >= NUM_COUNTS){ + t.stop(); + RPM = ((NUM_COUNTS-1)/(total/1000))*60; + pc.printf("%.2f\n",RPM); + count = 0; + t1 = 0; + total = 0; + t.reset(); + } + simulation = 0; + wait_ms(24); + simulation = 1; + wait_ms(1); + } + } \ No newline at end of file
diff -r 000000000000 -r caf81a29d035 mbed.bld --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/mbed.bld Sat Sep 29 19:14:08 2018 +0000 @@ -0,0 +1,1 @@ +http://mbed.org/users/mbed_official/code/mbed/builds/e95d10626187 \ No newline at end of file