2021-08-02 04:56 AM
Hello,
i would like to do firmware upload via CAN bus on my STM32L496 (Nucleo) board.
According to the datasheet this chip support firmware update via CAN.
I have a working CAN setup, i am able to send and recieve CAN frames, so i think the hardware side is okay.
After reboot into bootloader (BOOT0 == high) i am not able to get any response from the bootloader. According to the AN3154 i tried a few commands without any response.
I am able to reach the bootloader via UART and USB without any problems.
are the any tips and tricks with that?
thanks
Max
Solved! Go to Solution.
2021-08-02 06:25 AM
Verify the pins you're connected to are the CAN pins supported per AN2606. Initialize them as GPIO output and toggle to ensure the hardware connection is there. Verify clock settings.
2021-08-02 06:25 AM
Verify the pins you're connected to are the CAN pins supported per AN2606. Initialize them as GPIO output and toggle to ensure the hardware connection is there. Verify clock settings.
2021-08-02 06:26 AM
Hi, i am very sorry. I didn´t read the manual well, i forgot to enable the HSE ;( sorry for that
thanks very much for your quick help