Hi,
02:32 Mon 29 Jul 19 , hugen@... wrote:
You may have pressed the touch screen while adc is initializing.
No, I don't I'm sure
It might be better to add a wait.
I agree. I don't know STM32, I usually develop on NXP LPCxxxx but it seems
to me good.
void adc_init(void)
{
rccEnableADC1(FALSE);
/* Calibration procedure.*/
ADC->CCR = 0;
while (ADC1->CR & ADC_CR_ADEN)
;
ADC1->CR |= ADC_CR_ADCAL;
while (ADC1->CR & ADC_CR_ADCAL)
;
ADC1->CR = ADC_CR_ADEN;
while (!(ADC1->ISR & ADC_ISR_ADRDY))
;
}
Ok, now it works but after a full power-down.
I mean: after re-build and fw load
($ dfu-util -d 0483:df11 -a 0 -s 0x08000000:leave -D build_900/ch.bin)
on subsequent reset it hangs again just after start and stop frequency
printout; switching off and then on rapidly (blue led remains on) it hangs
again. Switching off, waiting for blue led to go down and switching on again
it works. Why?
Many thanks!
Lapo, IK5NAX
