FaSTTUBe/can-halal
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fix buffer index calculation

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they take a bit field as an argument, and then immediately use a clz instruction to convert it back to an index for some reason
This commit is contained in:
Kilian Bracher
2025-06-18 16:18:45 +02:00
parent 1b79e5cbea
commit 2ab77d75d6
1 changed files with 3 additions and 1 deletions
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can-halal.c
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@ -230,12 +230,14 @@ HAL_StatusTypeDef ftcan_get_tx_queue_length(uint32_t *length) {
} }
#if FTCAN_NUM_TX_BUFFERS #if FTCAN_NUM_TX_BUFFERS
static_assert(FDCAN_TX_BUFFER11 == 1 << 11 && FDCAN_TX_BUFFER21 == 1 << 21, "Your HAL version has a different definition for the transmit buffer indices. Please update your HAL version or change the code below.");
HAL_StatusTypeDef ftcan_transmit_buffer(uint16_t id, const uint8_t *data, size_t datalen, uint32_t buffer_index) { HAL_StatusTypeDef ftcan_transmit_buffer(uint16_t id, const uint8_t *data, size_t datalen, uint32_t buffer_index) {
static FDCAN_TxHeaderTypeDef header; static FDCAN_TxHeaderTypeDef header;
if (buffer_index >= FTCAN_NUM_TX_BUFFERS) { if (buffer_index >= FTCAN_NUM_TX_BUFFERS) {
return HAL_ERROR; return HAL_ERROR;
} }
return HAL_FDCAN_AddMessageToTxBuffer(hcan, fdcan_initialize_tx_header(&header, id, datalen), data, buffer_index); return HAL_FDCAN_AddMessageToTxBuffer(hcan, fdcan_initialize_tx_header(&header, id, datalen), data, 1 << buffer_index);
} }
#endif // FTCAN_NUM_TX_BUFFERS #endif // FTCAN_NUM_TX_BUFFERS
#endif #endif