About Michal Dudka

Michal Dudka · 2024-10-17

Missing info about PG12,PG13, PG14, PG15 alternate functions in Table 22 (datasheet DS14359 Rev 2). I hope that PG15 AF9 is PSSI_D13 like PG11.

Michal Dudka · 2024-08-18

My program collects data using DMA in circular buffer. I have following procedure to "start" collecting data. // "reenable" measurment (enable results readout) void restart_measurment(void){ run=1; // DMA channel reset CLEAR_BIT(TIM1->DIER, TIM_DIER_...

Michal Dudka · 2024-05-17

Hi,Few days ago i've encountered a strange behavior of the comparator at STM32G4. I investigated the problem under controlled conditions (used Nuclo kit instead application PCB) and the result is startling.Comparator 4 configured to get positive inpu...

Michal Dudka · 2024-05-17

Hi,HAL and LL DAC configuration structure and its parameters naming can be confusing. Reference manual claims that DAC "mode" (register ADC->MCR, bits 0..2 or 16..17) can be in one of following four combinations when not used sample and hold mode: 0 ...

Michal Dudka · 2024-05-16

I brought the sinewave with 120mVpp amplitude as positive input to STM32G431K8 onboard comparator (COMP4). Negative input is internaly taken from DAC. Comparator hardware output is connected to oscilloscope probe (short trace, spring connection) and ...

Michal Dudka · 2024-09-25

Depends mostly on your layout. I was able relatively easy to establish 50MHz communication through "Zio connector".

Michal Dudka · 2024-08-20

@STOne-32 wrote:Let me know if it helps on the right sequence to so before disabling DMA .It helped.

Michal Dudka · 2024-08-18

@waclawek.jan wrote:What you should do, is, disable DMA, wait until it signals its disabled (btw. that sets transfer-complete flag, too), and only after then disable the request source (here TIMx_DIER.CCxDE).Thanks, that sounds promising. I will do a...

Michal Dudka · 2024-08-18

NDTR register is key.

Michal Dudka · 2024-08-18

@STOne-32 wrote: Another one is to check if you have an on-going DMA transaction waiting an acknowledgment from previous part of the code...Thanks for tip. I am disabling Timers DMA request enable bits in IRQ routine to stop data collect.CLEAR_BIT(TI...

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STM32H7S3L8 datasheet - Missing info about PG12,PG13,PG14,PG15

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Re: DMA disable issue