rfivet/stm32bringup
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Internal Temperature calculation using TS_CAL2 and reference temperature stored in User Data Option Byte.

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This commit is contained in:
Renaud 2021-07-01 13:23:19 +08:00
parent a7cafdf989
commit 32007c1483
1 changed files with 15 additions and 2 deletions
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15
adcmain.c
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@ -6,6 +6,9 @@
#define RAW
#define TS_CAL2 ((const short *) 0x1FFFF7C2)
#define USER0 ((const unsigned char *) 0x1FFFF804)
int main( void) {
unsigned last = 0 ;
short calV, calC ;
@ -14,6 +17,12 @@ int main( void) {
adc_vnt( VNT_INIT, &calV, &calC) ;
#ifdef RAW
printf( "%u, %u\n", calV, calC) ;
int baseC = 300 ;
# ifdef USER0
if( 0xFF == (USER0[ 0] ^ USER0[ 1]))
baseC = USER0[ 0] * 10 ;
# endif
#endif
for( ;;)
@ -26,8 +35,12 @@ int main( void) {
#ifdef RAW
adc_vnt( VNT_RAW, &Vsample, &Csample) ;
printf( "%i, %i, %i, %i, ", calV, Vsample, calC, Csample) ;
Csample = 300 + (calC - (int) Csample * calV / Vsample)
Csample = baseC + (calC - (int) Csample * calV / Vsample)
# ifdef TS_CAL2
* 800 / (calC - *TS_CAL2) ;
# else
* 10000 / 5336 ;
# endif
Vsample = 330 * calV / Vsample ;
#else
adc_vnt( VNT_VNC, &Vsample, &Csample) ;