About APlöt.1

APlöt.1 · 2023-10-26

Hello forum,I need some hardware help to modify my PCB, which was developed by other people.I use STM32F103. I have one "Master"-Board and several "Slave"-Boards (up to 20) with same controller.Because of current saving reasons I need to set the cont...

APlöt.1 · 2020-11-04

Hello community,I have a problem with using usart6, although usart1 is working fine.My setup: STM32F439, usarts connected to a dual ftdi chip, so I have two com ports on the pc to choose of, which represent usart 1 on usart 6 resp.Also direct usb con...

APlöt.1 · 2020-05-26

Hello community,I have a strange behaviour with my timer. Well probably it is not strange but the problem sits between keyboard and mouse, but hopefully you can help me find the cause.following the setup of my program:I use STM32F4 on a self-created ...

APlöt.1 · 2023-10-27

Thank you for you questions.It is STM32F103C8T6, could be bluepill, I am not sure.With "crash" I mean permanently damaged. As I wrote also in the above reply, I am not able to put the pin in High Level state, not with slaves connected and also not wi...

APlöt.1 · 2023-10-26

Thanks for your answer.After the PB0 pin gets damaged, I cannot even put it in high level state without any slaves connected. So just measuring with Oszi (or multimeter) directly at the not connected pin. That is what suggests me, that the pin is "br...

APlöt.1 · 2020-11-22

Thank you very much for your replies. Seems, that clive1's interrupt hints lead to the problem. I found some missing/wrong dma interrupt initialisations. I did not find them in the first place because I was just concentrating on the explicit USART st...

APlöt.1 · 2020-05-29

thanks for these suggestions.I tried with a different timer (tim7), but same problem. concrete:timer gets restartet and increments/updates counter register but interrupt does not get fired. I did not manage to view the counting with the debugger, bec...

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driverchip for GPIO support

Is there any difference between usart6 and usart 1? Usart6 gives me problems with same configuration as usart1, which is working fine.

problem with timer interrupt, works in first place but not later on in program

Re: driverchip for GPIO support

Re: driverchip for GPIO support

Re: Is there any difference between usart6 and usart 1? Usart6 gives me problems with same configuration as usart1, which is working fine.

Re: problem with timer interrupt, works in first place but not later on in program