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diff Small_CPU/Src/uart.c @ 809:9602a7338f28

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DevBugfix CO2 sensor in streaming mode: In standalone mode (no multiplexer) the CO2 sensor is working in streaming mode => it could happen that the OSTC received data before the scaling factor was requested. As result the CO2 values were calculated with a zero value. This problem has been fixed. In addition some code cleanup has been done. Unifying usage of changeBaudrate function instead of old baud selection based on protocol request of Discovery firmware.
author Ideenmodellierer
date Sun, 27 Aug 2023 20:51:13 +0200
parents 96ffad0a4e57
children c3dd461ca3f9
line wrap: on
line diff
--- a/Small_CPU/Src/uart.c	Sat Aug 26 13:38:13 2023 +0200
+++ b/Small_CPU/Src/uart.c	Sun Aug 27 20:51:13 2023 +0200
@@ -202,7 +202,7 @@
 
 void UART_ChangeBaudrate(uint32_t newBaudrate)
 {
-
+	uint8_t dmaWasActive = dmaActive;
 //	HAL_DMA_Abort(&hdma_usart1_rx);
 		MX_USART1_UART_DeInit();
 		//HAL_UART_Abort(&huart1);
@@ -213,8 +213,9 @@
 	huart1.Init.BaudRate = newBaudrate;
 	HAL_UART_Init(&huart1);
 	MX_USART1_DMA_Init();
-	if(dmaActive)
+	if(dmaWasActive)
 	{
+		memset(rxBuffer,BUFFER_NODATA,sizeof(rxBuffer));
 		rxReadIndex = 0;
 		rxWriteIndex = 0;
 		dmaActive = 0;
@@ -392,10 +393,7 @@
     	}
     	if((rxWriteIndex / CHUNK_SIZE) != (rxReadIndex / CHUNK_SIZE) || (rxWriteIndex == rxReadIndex))	/* start next transfer if we did not catch up with read index */
     	{
-    		if(externalInterface_GetUARTProtocol() != 0)
-    		{
-				UART_StartDMA_Receiption();
-    		}
+			UART_StartDMA_Receiption();
     	}
     }
 }
@@ -441,7 +439,8 @@
 			rxReadIndex = 0;
 		}
 	}
-
 }
 
+
+
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