Hi Oleg, I'm glad you figured it out.
BR, Alan On 3/3/22, Oleg <ev.m...@gmail.com> wrote: > Hi Alan, > > Thanks for the participation! > > In the end I've dug into the driver code and found the bug with CAN3 filter > configuration. > Here is the fix: https://github.com/apache/incubator-nuttx/pull/5677 > > --- > With best regards, Oleg. > > чт, 24 февр. 2022 г. в 23:01, Alan Carvalho de Assis <acas...@gmail.com>: > >> Hi Oleg, >> >> Did you try to find some typo or mistake related to CAN3 in the driver? >> >> Is it possible (at least for test) to use other pin for this signal? i.e. >> PB3. >> >> BR, >> >> Alan >> >> On 2/24/22, Oleg <ev.m...@gmail.com> wrote: >> > Hi all, >> > >> > I'm working with a custom board based on STM32F767 and a custom project >> > fork of px4 based on NuttX-10.2.0. I can successfully configure and use >> > CAN1 and CAN2 buses for sending and receiving messages, but when the >> > CAN3 >> > bus is used, the board can only transmit messages, but not receive. >> Simple >> > app that I use for tests just waits in reading from /dev/can2 device. >> > >> > For all CANs the same CAN Bus transceiver is used. I've checked the >> > hardware connection of CAN RX line and MC pin PA8, and I also >> > definitely >> > see data presence at an oscilloscope while data is being received by >> > transceiver, so the issue should be on MC side. >> > >> > GPIO_CAN3_RX is defined to GPIO_CAN3_RX_1 (PA8) in board.h and in debug >> > I've ensured that stm32_configgpio(GPIO_CAN3_RX) is called from >> > stm32_caninitialize() on boot. >> > The firmware should not use other alternative functions of PA8 anywhere >> and >> > I don't see any activity on the line if CAN bus is silent. But anyway >> I've >> > tried to disable Ethernet RMII from defconfing to make sure MCO1 is not >> > used. It didn't help. >> > >> > I don't have any more ideas, maybe someone could help me with >> > suggestions >> > on what I should check to find the cause of my issue. >> > Thanks in advance! >> > >> > --- >> > With best regards, Oleg. >> > >> >
