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STM32H7 CAN FD partial and full support #4774
Description
Per a discussion with @dpgeorge CAN is not currently supported on H7 MCU.
I am hoping to see CAN support on the H7 device, and eventually CAN-FD support. I think FD (Flexible Data-Rate) is still new enough that the need for full support is definitely not a requirement, basic support of 11bit and 29bit CAN would be more than enough to allow the H7 to replace the F7 in most use-cases.
Unfortunately my time and skill on this is limited, and willing to provide financial support if needed, but this a gating item for me to switch over to the H7 and I image other might want/need this as well.
Activity
iabdalkader commentedon May 12, 2019
Just thought I should mention that I'll start working the H7 CAN driver.
TravisJoe commentedon May 13, 2019
This is also related to a conversation on OpenMV
http://forums.openmv.io/viewtopic.php?f=6&t=1301
TravisJoe commentedon May 13, 2019
Also related to
openmv/openmv#526
Hello @iabdalkader @kwagyeman
Just tell me if there is something I might be able to help with.
iabdalkader commentedon May 15, 2019
@dpgeorge Do you prefer this implemented in a new driver (fdcan.c) ? There will be a lot of #ifdefs otherwise.
TravisJoe commentedon May 15, 2019
My less valuable thoughts,
I would agree its own driver would make sense. In my head relating it like SPI to QSPI in that implementation is not coupled enough to justify the mess. Especially since CANFD would be coming on other ports eventually making it even more complex if all together.
dpgeorge commentedon Sep 23, 2019
FDCAN support on H7 was added in f7a07b3
Merge pull request micropython#4774 from kamtom480/spresense_usb_fix