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stm32/fdcan: Fix extended CAN ID filtering for stm32g4.

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The memory bank addresses used for these are independent, can (and must)
enable both.

Also looks like no need to shrink these if FDCAN2 is added, the Reference
Manual is a bit unclear but looks like the peripheral's RAM multiplies out
for each additional controller.

Signed-off-by: Angus Gratton <angus@redyak.com.au>
This commit is contained in:
Angus Gratton
2024-05-23 17:46:47 +10:00
committed by Damien George
parent 3a60f32c9d
commit 21b7bd9f44
1 changed files with 2 additions and 2 deletions
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ports/stm32/fdcan.c
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@@ -86,8 +86,8 @@ bool can_init(pyb_can_obj_t *can_obj, uint32_t mode, uint32_t prescaler, uint32_
init->DataSyncJumpWidth = 1;
init->DataTimeSeg1 = 1;
init->DataTimeSeg2 = 1;
init->StdFiltersNbr = 28; // /2 ? if FDCAN2 is used !!?
init->ExtFiltersNbr = 0; // Not used
init->StdFiltersNbr = 28;
init->ExtFiltersNbr = 8;
init->TxFifoQueueMode = FDCAN_TX_FIFO_OPERATION;
#elif defined(STM32H7)
// The dedicated FDCAN RAM is 2560 32-bit words and shared between the FDCAN instances.