drivers: can: STM32H7 FDCAN - WIP #35751
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area: Boards
area: CAN
area: Devicetree
platform: STM32
* Add can, can1 to stm32h7.dtsi. Signed-off-by: Jeremy Wood <[email protected]>
* Add can1 config to nucleo_h743/753. Signed-off-by: Jeremy Wood <[email protected]>
* Add STM32h7 fields to can_mcan_reg. * STM32H FDCAN clock config changes. Signed-off-by: Jeremy Wood <[email protected]>
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More detail on where I'm stuck: I'm testing with Line 714 in 5e0ca9b |
…n.c and can_mcan_int.h, added lots of debug logging. Also modified /samples/drivers/can to turn on logging, etc. Loopback mode doesn't work. When loopback is OFF, I see some activity on CAN H/L, looks like the first CAN frame is being auto-retransmitted constantly. Tried connecting two boards, that doesn't work either.
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This pull request has been marked as stale because it has been open (more than) 60 days with no activity. Remove the stale label or add a comment saying that you would like to have the label removed otherwise this pull request will automatically be closed in 14 days. Note, that you can always re-open a closed pull request at any time. |
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Working on bringing up FDCAN on the STM32H7. Putting this up as a draft PR to get feedback and guidance.
Based on @Nukersson's comment here I set off to reconcile the register set on the STM32H7 versus STM32G4. Only other adjustment so far is in the clock config, as the STM32H7 requires different for FDCAN.
At this point, initialization completes w/o error, but sends aren't working—they timeout.
I have been testing with the CAN shell and
/samples/drivers/canon STM32H753.Would greatly appreciate guidance on getting this up and running!