X M
/
howfast
mbed toggles some pins ,transitions of 40nsec are measured between different pin changes .
main.cpp
- Committer:
- bitman
- Date:
- 2011-07-11
- Revision:
- 0:f3b381f0568b
File content as of revision 0:f3b381f0568b:
#include "mbed.h" DigitalOut red(p5); DigitalOut green(p6); DigitalOut blue(p7); DigitalOut flag(p8); int main() { while (1) { flag = !flag; // toggle pin 8 so we have a period indication.... // check period red=1;// these transitions take about 40 nsec blue=1; green=1; blue=0; // green=0;// red=0; // red=1; // this transition is possibly too short for my analyser (24Msamples/sec= 40 nsec resolution ) to be seen red=0; // ?? wait(0.001); } }