STM32F100 on STM32VL Discovery - Simple ADC voltage measure

[Giovanni]

The reason is clear, it is not getting the DMA interrupt that signals that the conversion is complete. The cause is unknown, I need to make a test but this will have to wait the weekend.

Giovanni

[bartocham]

Ok!
Thank you very much. I would be appreciated if you could help with that. It is really important project for me.
I'll try to do something by myself but I don't think I could do more

[bartocham]

As an addition:

In that moment idle task is marked as current, clock task as sleeping and main as suspended.

[bartocham]

Again me

Mistery solved! Together with my friend which is using ChibiOs with STM32 for almost three years in tons of projects (experience lvl - Asian. If you know what I mean ) we found a bug in config.

Previous one:

Code: Select all

static const ADCConversionGroup adcgrpcfg1 = {
  FALSE,
  ADC_GRP1_NUM_CHANNELS,
  NULL,
  NULL,
  0, ADC_CR2_SWSTART,                         /* CR1, CR2 */
  ADC_SMPR1_SMP_AN10(ADC_SAMPLE_1P5),
  0,                            /* SMPR2 */
  ADC_SQR1_NUM_CH(ADC_GRP1_NUM_CHANNELS),
  0,                            /* SQR2 */
  ADC_SQR3_SQ1_N(ADC_CHANNEL_IN5)
};

New one:

Code: Select all

static adcsample_t samples[ADC_GRP1_NUM_CHANNELS * ADC_GRP1_BUF_DEPTH];

static const ADCConversionGroup adcgrpcfg1 = {
  FALSE,
  ADC_GRP1_NUM_CHANNELS,
  NULL,
  NULL,
  0, 0,                         /* CR1, CR2 */
  ADC_SMPR1_SMP_AN10(ADC_SAMPLE_1P5),
  0,                            /* SMPR2 */
  ADC_SQR1_NUM_CH(ADC_GRP1_NUM_CHANNELS),
  0,                            /* SQR2 */
  ADC_SQR3_SQ1_N(ADC_CHANNEL_IN5)
};

For F1 we should not set ADC_CR2_SWSTART. Now everything works.

Thanks for help once again!