Posted on February 22, 2017 at 10:26
Hi everyone,
I'm trying to get the internal temperature on my STM32L0.
I have write the major part of the script but unfortunally the reading value is 0.
Does anyone can have a look on my script and tel me if you see something ?
Thank you very much for your help
Regards
Simon
&sharpdefine TEMP130_CAL_ADDR ((uint16_t*) ((uint32_t) 0x1FF8007E))
&sharpdefine TEMP30_CAL_ADDR ((uint16_t*) ((uint32_t) 0x1FF8007A))
&sharpdefine VDD_CALIB ((uint16_t) (300))
&sharpdefine VDD_APPLI ((uint16_t) (330))
int32_t ComputeTemperature(uint32_t measure)
{
int32_t temperature;
temperature = ((measure * VDD_APPLI / VDD_CALIB) - (int32_t)*TEMP30_CAL_ADDR );
temperature = temperature *(int32_t)(130-30);
temperature = temperature /(int32_t)(*TEMP130_CAL_ADDR -*TEMP30_CAL_ADDR);
temperature = temperature + 30;
return(temperature);
}
void ConfigTemperature(void){
//ADC Ready
ADC1->ISR |= ADC_ISR_ADRDY;
//Activation of the clock
RCC->APB2ENR |= RCC_APB2ENR_ADC1EN;
//Continuous mode
ADC1->CFGR1 |= ADC_CFGR1_CONT;
//Channel temp sensor
ADC1->CHSELR |= ADC_CHANNEL_TEMPSENSOR;
//Select the sample time
ADC1->SMPR |= ADC_SMPR_SMP_1;
//Turn on the temp sensor
ADC->CCR |= ADC_CCR_TSEN;
wait(1);
//Start the conversion
ADC1->CR |= ADC_CR_ADSTART;
wait(1);
pcMain.printf('%Measure %i\n\r', measure);
pcMain.printf('%The temperature value is %i\n\r',ComputeTemperature(measure));
}
int main(void)
{
ConfigTemperature();
}
