Hi,
I contributed the board level CAN driver support for Nucleo F446RE board few months ago and I did some tests of receiving and transmitting CAN messages with a low cost WCMCU-230 transceiver (https://www.aliexpress.com/item/ 32686393467.html). It was working fine, actually if you configure and compile ./tools/configure.sh nucleo-f446re:can and run an example application "can", it should send 100 messages over CAN1 (RX PB_8 pin, TX PB _9 pin) unless there were some recent major changes to STM32 CAN driver. If I remember correctly, I noticed some problems when the application was in read and write mode instead of just single read or single write mode. I am not sure whether it was the same problem you describe as it was some time ago. I also did small tests with pysimCoder using maxon motor CAN block and it was also transmitting messages without any obvious problems. I haven´t tried receiving thought. I hope this helps. Best regards, Michal Lenc ---------- Původní e-mail ---------- Od: Roberto Bucher <roberto.buc...@supsi.ch> Komu: dev@nuttx.apache.org Datum: 7. 7. 2021 17:23:35 Předmět: Troubles with CAN bus on STM32 Nucleo-F446RE "Hi I'm trying to send messages using the CAN bus on the nucleo-f446re. The RX and TX of the STM32 is connected to a MIKROE transceiver (the same working without problems with the nucleo-STM32F746ZG board, but the bus stop after 8 messages (I think that stops because of the full output buffer...) Does somebody reaches to communicate with CAN bus using this board? Thanks in advance BR Roberto "
