Check success status after sending message

jxltom · jxltom · commit 7dbf333631f1 · 2020-03-18T13:21:41.000+08:00
diff --git a/mcp2515.cpp b/mcp2515.cpp
@@ -591,6 +591,10 @@ MCP2515::ERROR MCP2515::sendMessage(const TXBn txbn, const struct can_frame *fra
 
     modifyRegister(txbuf->CTRL, TXB_TXREQ, TXB_TXREQ);
 
+    uint8_t ctrl = readRegister(txbuf->CTRL);
+    if ((ctrl & (TXB_ABTF | TXB_MLOA | TXB_TXERR)) != 0) {
+        return ERROR_FAILTX;
+    }
     return ERROR_OK;
 }
 

Original file line number	Diff line number	Diff line change
`@@ -591,6 +591,10 @@ MCP2515::ERROR MCP2515::sendMessage(const TXBn txbn, const struct can_frame *fra`
`591`	`591`
`592`	`592`	`modifyRegister(txbuf->CTRL, TXB_TXREQ, TXB_TXREQ);`
`593`	`593`
	`594`	`+ uint8_t ctrl = readRegister(txbuf->CTRL);`
	`595`	`+ if ((ctrl & (TXB_ABTF \| TXB_MLOA \| TXB_TXERR)) != 0) {`
	`596`	`+ return ERROR_FAILTX;`
	`597`	`+ }`
`594`	`598`	`return ERROR_OK;`
`595`	`599`	`}`
`596`	`600`