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Fix buffer overwrite while DMA is not completed

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Erick
2026-06-18 13:08:11 +02:00
parent 3bf5a8cc19
commit 9086bf3efb
1 changed files with 15 additions and 11 deletions
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Core/Src/cansend.c
+7 -3
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@@ -109,14 +109,18 @@ void vUARTLogger(void *argument)
DEBUG_PRINT("Waiting for CAN traffic...\r\n"); DEBUG_PRINT("Waiting for CAN traffic...\r\n");
if (osMessageQueueGet(xUARTQueue, &message, NULL, osWaitForever) == osOK) if (osMessageQueueGet(xUARTQueue, &message, NULL, osWaitForever) == osOK)
{ {
DEBUG_PRINT("CAN frame detected\r\n"); osSemaphoreAcquire(xUARTDMASemaphore, osWaitForever);
int len = format_can_message(tx_buffer, message.source, &message); int len = format_can_message(tx_buffer, message.source, &message);
if (HAL_UART_Transmit_DMA(&huart1, (uint8_t*)tx_buffer, len) == HAL_OK) if (HAL_UART_Transmit_DMA(&huart1, (uint8_t*)tx_buffer, len) == HAL_OK)
{ {
osSemaphoreAcquire(xUARTDMASemaphore, osWaitForever);
DEBUG_PRINT("CAN frame sent via UART\r\n"); DEBUG_PRINT("CAN frame sent via UART\r\n");
} }
else DEBUG_PRINT("HAL error, CAN frame NOT sent!\r\n"); else
{
osSemaphoreRelease(xUARTDMASemaphore);
DEBUG_PRINT("HAL error, CAN frame NOT sent!\r\n");
}
} }
} }
} }