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Merge pull request #10 from ralfEdmund/master

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Receive may freeze if CAN saturated
This commit is contained in:
Lowaichung
2014-10-17 10:31:22 +08:00
parent 0c869d8ae3 0a791f6d4b
commit a3d7d091ce
1 changed files with 19 additions and 12 deletions
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examples/receive_interrupt/receive_interrupt.ino
+19 -12
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@@ -41,20 +41,27 @@ void MCP2515_ISR()
void loop()
{
if(Flag_Recv) // check if get data
{
if(Flag_Recv) { // check if get data
Flag_Recv = 0; // clear flag
CAN.readMsgBuf(&len, buf); // read data, len: data length, buf: data buf
for(int i = 0; i<len; i++) // print the data
{
Serial.print(buf[i]);Serial.print("\t");
}
Serial.println();
}
Flag_Recv = 0; // clear flag
// iterate over all pending messages
// If either the bus is saturated or the MCU is busy,
// both RX buffers may be in use and reading a single
// message does not clear the IRQ conditon.
while (CAN_MSGAVAIL == CAN.checkReceive()) {
// read data, len: data length, buf: data buf
CAN.readMsgBuf(&len, buf);
// print the data
for(int i = 0; i<len; i++) {
Serial.print(buf[i]);Serial.print("\t");
}
Serial.println();
}
}
}
/*********************************************************************************************************
END FILE
*********************************************************************************************************/
*********************************************************************************************************/