About PWint

PWint · 2021-12-06

I have the strangest problem ever seen and I would not believe it has it not been this repeatable: I have a single DMA controller running 3x streams. Two are for ADC and one for DAC. All three can run simultaneously, the DAC at 1 Msps and the ADCs bo...

PWint · 2021-05-08

I have a Nucleo-H743ZI board and want to get the CDC example working so that I can use it in my own code.I created a new STM32 Project from STMCubeIDE and selected the CDC Standalone example (It is for LUCLEO-L552ZE-Q board).I had to disable BSP_LED_...

PWint · 2021-03-23

I am trying to use DAC Channel 1 on STM32H7 with DMA to control the ramp-up of a PA. The DAC must always be driven (enabled). A ramp-up sequence is written at the start of a burst and a ramp-down at the end of the burst.The FIFO error flag is set on ...

PWint · 2020-08-05

My Ethernet driver is not wrapping as I expect.Section "61.10.1 Descriptor Overview" in RM0399 states that descriptors up to N-1 is owned by the DMA and the DMA continues to process descriptors until the Current Descriptor Pointer == Tail Pointer.In...

PWint · 2020-01-02

I am debugging my software on STM32L452CCU6 and it is mostly in sleep mode. By default, this disables clocks to the debug port, and the debugger (using STMCube) prints out the message "Target is not responding, retrying...". After a couple of times, ...

PWint · 2022-01-19

Hi Pavel,Thank you for confirming.@Imen DAHMEN , thank you for following up and looking at correcting in documentation.

PWint · 2021-12-06

I am using bank 1 when upgrading software and swopping the banks after download is complete. This is how I originally found my problem: It would only occur on boards that has been programmed, so it had data written in bank 1 of Flash. I never read th...

PWint · 2021-12-06

I am using STM32H745.When I was in this last state (where chip kept on resetting itself) I could not examine CSR because I could not connect to the CPU.

PWint · 2021-05-11

Hi @Imen DAHMEN,Thank you very much for getting back to me. I did use the CDC-Standalone application but maybe my method is sending me down the wrong track.I used STM32Cube to create a new example project:1. File > New STM32 Project.2. Under...

PWint · 2020-08-06

Thanks, that helped a lot. Knowing what is right and what is not eliminated enough issues that I could get my driver going. Thanks also for your bug-fix in the ST driver. That, with your documentation was very useful.My TX error turned out to be some...

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Strangest problem ever seen - Specific value in flash causes DMA underrun. Any ideas?

How do I get CDC Standalone example working on NUCLEO-H743ZI Board

DMA FIFO error on DAC when writing second time

How does Ethernet RX descriptor wrapping work on STM32H7?

Automatically set DBGMCU when debugging starts.

Re: How does Ethernet RX descriptor wrapping work on STM32H7?

Re: Strangest problem ever seen - Specific value in flash causes DMA underrun. Any ideas?

Re: Strangest problem ever seen - Specific value in flash causes DMA underrun. Any ideas?

Re: How do I get CDC Standalone example working on NUCLEO-H743ZI Board

Re: How does Ethernet RX descriptor wrapping work on STM32H7?