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authorEric Callahan <arksine.code@gmail.com>2022-06-03 06:09:53 -0400
committerKevinOConnor <kevin@koconnor.net>2022-06-03 14:51:01 -0400
commit39535b15ba2492608a4d1b2854df4faee920da53 (patch)
treec0300ad37f51bfefef038caa8939591e37a8d6a6 /src/stm32/can.c
parent3c7eea7336349475c03aa2fd186a5f73fc195d28 (diff)
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stm32: use TME bits to find the canbus tx mailbox
Signed-off-by: Eric Callahan <arksine.code@gmail.com>
Diffstat (limited to 'src/stm32/can.c')
-rw-r--r--src/stm32/can.c6
1 files changed, 5 insertions, 1 deletions
diff --git a/src/stm32/can.c b/src/stm32/can.c
index ff88edb9..a82ad688 100644
--- a/src/stm32/can.c
+++ b/src/stm32/can.c
@@ -135,7 +135,11 @@ canbus_send(uint32_t id, uint32_t len, uint8_t *data)
irq_enable();
return -1;
}
- int mbox = (tsr & CAN_TSR_CODE) >> CAN_TSR_CODE_Pos;
+ int mbox = 2;
+ if (tsr & CAN_TSR_TME0)
+ mbox = 0;
+ else if (tsr & CAN_TSR_TME1)
+ mbox = 1;
CAN_TxMailBox_TypeDef *mb = &SOC_CAN->sTxMailBox[mbox];
/* Set up the DLC */