Test program to show cpu running at 84MHz

Dependencies:   ST_401_84MHZ mbed

Speed up the CPU to 84MHz to get a SPI clock of 20MHz.

main.cpp

Committer:
bcostm
Date:
2014-02-21
Revision:
0:21b36798fd00
Child:
1:aa61af968c8a

File content as of revision 0:21b36798fd00:

#include "mbed.h"
 
SPI device(SPI_MOSI, SPI_MISO, SPI_SCK);
 
int main() {
    int i = 0;
    while(1) {
        device.write(0x55);
        device.write(i++);
        device.write(0xE0);
        wait_us(50);
    }
}