About Nickelgrass

Nickelgrass · 2024-06-13

Hello,I am trying to implement a USB HID keyboard on an STM32F042 without HAL or LL, just simple register defs. I took an example code generated in CubeIDE with HAL and a few other examples. I extended the example with HAL to also implement the LEDs ...

Nickelgrass · 2024-04-20

Hello,I have a strange problem that I already lost a lot of hair over. I am using cubeIDE with an stlink v2 (STM32G441 with a blank C/C++ project and CMSIS). All run very well until today. So I am sure the code itself is ok.If I compile the project b...

Nickelgrass · 2024-03-28

Hello,I am using a STM32G491 in LQFP48 package. In the RM0440 rev8 page 2122 the package code for LQFP48 is 01011. But I read 01001 which would be LQFP32. The device id 0x479 is correct. Is there a reason for this? Thanks.

Nickelgrass · 2024-02-22

Hello,I am trying to implement the FDCAN in classic mode on the STM32G491 without the HAL. But I am havin trouble understanding how to configure and then use the CAN SRAM. I am not using the HAL nor CMSIS nor anyting else. Just the basic register def...

Nickelgrass · 2023-11-18

Hello,first of I must state that this is a bare metal project. If bare metal is not your thing then please do not read on. I only use parts of the CMSIS but no HAL and no LL.I have a strange effect when using I2C1 bus with DMA and USART1 with receive...

Nickelgrass · 2024-06-16

Hi,no but I implemented it on my own. All works now. Once I understood how the FDCAN ram worked it was pretty simple. You can set up the ram with a struct just like all the other registers and treat it as registers. That way it becomes very simple to...

Nickelgrass · 2024-06-15

Thanks! I had not found that yet.

Nickelgrass · 2024-06-15

Thanks for the reply. I read the RM (of F042). But I somewhat hoped there was a more detailed explanation to the PMA. Something like a concrete map of what goes where.Is it correct that the PMA is 16 bit registers but 32 bit aligned?So from the logic...

Nickelgrass · 2024-06-15

Maybe someone from ST can point me to some additional documentation for the USB peripheral and the PMA?

Nickelgrass · 2024-04-28

I could not resolve the problem cause so far. I will have to dig a bit deeper when I have the time Thanks for all the replies.

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Bare metal USB HID

Different binary data when running directly

Package data register wrong code

Bare Metal FDCAN on STM32G491

Strange interference between I2C1 DMA and USART1 interrupt (BARE METAL)

Re: Bare Metal FDCAN on STM32G491

Re: Bare metal USB HID

Re: Bare metal USB HID

Re: Bare metal USB HID

Re: Different binary data when running directly