1
0
mirror of https://github.com/rfivet/stm32bringup.git synced 2024-12-22 08:46:23 -05:00
stm32bringup/adcmain.c

40 lines
1012 B
C

/* adcmain.c -- ADC reading of reference voltage and temperature sensor */
/* Copyright (c) 2020 Renaud Fivet */
#include <stdio.h>
#include "system.h"
#define RAW
int main( void) {
unsigned last = 0 ;
short calV, calC ;
/* Initialize ADC and fetch calibration values */
adc_vnt( VNT_INIT, &calV, &calC) ;
#ifdef RAW
printf( "%u, %u\n", calV, calC) ;
#endif
for( ;;)
if( uptime == last)
yield() ;
else {
short Vsample, Csample ;
last = uptime ;
#ifdef RAW
adc_vnt( VNT_RAW, &Vsample, &Csample) ;
printf( "%i, %i, %i, %i, ", calV, Vsample, calC, Csample) ;
Vsample = 330 * calV / Vsample ;
Csample = 850 + (1500 - (int) Csample) * 10 / 4 ;
#else
adc_vnt( VNT_VNC, &Vsample, &Csample) ;
#endif
printf( "%i.%i, %i.%i\n", Vsample / 100, Vsample % 100,
Csample / 10, Csample % 10) ;
}
}
/* end of adcmain.c */