Gianni Notari
/
ADC_fast_sample_and_send
Makes 100 samples on maximum sample rate and transmits it over UART
main.cpp
- Committer:
- gno
- Date:
- 2010-06-09
- Revision:
- 0:55ea5a2921b2
File content as of revision 0:55ea5a2921b2:
#define SAMPLE_RATE 750000 #define LENGTH_RESULT 100 #include "mbed.h" #include "adc.h" //Initialise ADC to maximum SAMPLE_RATE and cclk divide set to 1 ADC adc(SAMPLE_RATE, 1); Serial uart(USBTX, USBRX); // tx, rx volatile int result[LENGTH_RESULT]; int main() { // Init UART // uart.baud(256000); // uart.printf("Requested max sample rate is %u, actual max sample rate is %u.\n", SAMPLE_RATE, adc.actual_sample_rate()); //Set up ADC on pin 20 adc.setup(p20,1); //Measure pin 20 adc.select(p20); // Vars int count; // Program // AD conversion for(count = 0; count < LENGTH_RESULT; count++){ //Start ADC conversion adc.start(); //Wait for it to complete while(!adc.done(p20)); result[count] = adc.read(p20); } // Send over UART for(count = 0; count < LENGTH_RESULT; count++){ uart.printf("%04u.\n", result[count]); } }