Merge pull request #5 from phantom1299/master

FxDev · web-flow · commit 1d5bfa38cb3d · 2021-12-10T01:00:59.000+03:00
FIX function code of modbus error response
diff --git a/PetitModbus.c b/PetitModbus.c
@@ -117,7 +117,7 @@ unsigned char PetitSendMessage(void)
 void HandlePetitModbusError(char ErrorCode)
 {
     // Initialise the output buffer. The first byte in the buffer says how many registers we have read
-    Petit_Tx_Data.Function    = ErrorCode | 0x80;
+    Petit_Tx_Data.Function    = Petit_Rx_Data.Function | 0x80;
     Petit_Tx_Data.Address     = PETITMODBUS_SLAVE_ADDRESS;
     Petit_Tx_Data.DataLen     = 1;
     Petit_Tx_Data.DataBuf[0]  = ErrorCode;

Original file line number	Diff line number	Diff line change
`@@ -117,7 +117,7 @@ unsigned char PetitSendMessage(void)`
`117`	`117`	`void HandlePetitModbusError(char ErrorCode)`
`118`	`118`	`{`
`119`	`119`	`// Initialise the output buffer. The first byte in the buffer says how many registers we have read`
`120`		`- Petit_Tx_Data.Function = ErrorCode \| 0x80;`
	`120`	`+ Petit_Tx_Data.Function = Petit_Rx_Data.Function \| 0x80;`
`121`	`121`	`Petit_Tx_Data.Address = PETITMODBUS_SLAVE_ADDRESS;`
`122`	`122`	`Petit_Tx_Data.DataLen = 1;`
`123`	`123`	`Petit_Tx_Data.DataBuf[0] = ErrorCode;`