About FSchm.4

FSchm.4 · 2021-08-04

Hello everyone,i am currently trying to get the can bus on my Nucleo-F767ZI running.Now i got a problem that every time i sent a message via CAN (from my PCANView) which is longer than two bytes i got a Bus-Off error, but if byte 2 is not empty i ca...

FSchm.4 · 2021-08-13

It seems the problem was with the sample point of the CAN from 87.5% to 75% now it works with varying byte length.Interesting is that the same code works on my Nucleo L476RG with varying byte lengths and the old sample point of 87.5%.

FSchm.4 · 2021-08-13

Thank you for your reply,the tx_header.DLC ist set to 8 for the STM and the PCAN DLC is also set to 8.

FSchm.4 · 2021-08-05

I tryed to check the rx_data array with live expression view.It seem when i am sending 4 bytes that are not zero, that the upper 4 bytes are getting also filled with data. For example byte 4 to 6 are filled with 0xff and byte 7 ist filled with random...

FSchm.4 · 2021-08-05

Thank for your reply,i tried the first sugesstion from you and that did not work andif i set a breakpoint at the HAL_CAN_RxFifo0MsgPendingCallback and step into the function,the ID and data are correctly processed.If you like i could upload the full ...

FSchm.4 · 2021-08-04

This is a screenshot from the Trace Window of the PCANView:

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STM32F767ZI and CAN-Bus: Bus-Off error after receiving 8 byte long message

Re: STM32F767ZI and CAN-Bus: Bus-Off error after receiving 8 byte long message

Re: STM32F767ZI and CAN-Bus: Bus-Off error after receiving 8 byte long message

Re: STM32F767ZI and CAN-Bus: Bus-Off error after receiving 8 byte long message

Re: STM32F767ZI and CAN-Bus: Bus-Off error after receiving 8 byte long message

Re: STM32F767ZI and CAN-Bus: Bus-Off error after receiving 8 byte long message