search

nopnop2002 / Arduino-STM32-CAN

Can Example for Arduino Core STM32
210 stars 53 forks source link

Adapt to stm32f767 custom board #43

Closed 0v3rcl0ck3d closed 1 year ago

0v3rcl0ck3d commented 2 years ago

Hello nopnop2002, Thanks for your create work. I want do adapt your code to a board using the stm32f767 but I don't know how to get this done. Could you provide me some information which code is specific for the processor? Where did you get the information to support the other processors?

nopnop2002 commented 2 years ago

You need to read the Reference manual carefully.

Especially RCC GPIO and bxCAN are important.

https://www.st.com/resource/en/reference_manual/dm00224583-stm32f76xxx-and-stm32f77xxx-advanced-arm-based-32-bit-mcus-stmicroelectronics.pdf

STM32F765xx, STM32F767xx, STM32F768Ax and STM32F769xx alternate function mapping is here. bxCAN seems to use AF9.

https://www.st.com/resource/en/datasheet/stm32f765zi.pdf

You can use this for CAN Bit Time Calculation.

http://www.bittiming.can-wiki.info/

0v3rcl0ck3d commented 2 years ago

Actually, I did read the Reference manual carefully. However, this is my first time using low level code and the first time I need CAN. From what I saw in the manual, it seems that the CAN part of the 767 and the 466 are nearly the same. So I just used the code for the 466 and tried to get it working. However, I was not able to send a message.

I also tried to use the HAL CAN functions from the Core but the documentation is not very detailed.

Thanks for your help, but it seems I am not able to implement it with this informations.

I was not able to find a example of CAN implementation for the Arduino IDE for this processor at all. Since this is part of a bigger project that is already in production, I can not just switch to Cube IDE.

If you have any further informations that could help me, I would really appreciate it.

nopnop2002 commented 2 years ago

From what I saw in the manual, it seems that the CAN part of the 767 and the 466 are nearly the same.

It looks the same at first glance, but it may be slightly different.

I will buy STM32F767 if it becomes more cheap, but it is expensive for me.

0v3rcl0ck3d commented 2 years ago

If you just need a 767 and could help me with it, this should be doable. However, we are short on time and need a working solution within days. If there is a way to achieve this, let me know.

nopnop2002 commented 2 years ago

we are short on time and need a working solution within days.

It's a lot of work. It is impossible in a short time.

nopnop2002 commented 1 year ago

Added F7 series