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Hello everybody,
i am searching for a possibility to check, if a can.message was lost during the communication. In order to test these case,
i send 4 messages with the same messageID and i only configure one Messagebox with the same messageID as the four tx-messageboxes.
i configured the messageboxes like:
-messagebox[1-4] are Tx-messageboxes with the same messageID 1
-messagebox[33-36] are Rx-messageboxes with respectively messageID 1 - 4
i observed the the MsgLst-bit in the IF2MCTL register to check, if any change happened. but nothing change. it remains all the time 0.
Does someone know, how i can find out a lost message.
Below my code
char Data[8] = "Hello";
char Data2[8] = "world!";
uint8 MsgID = 1, a = 0;
uint8 DataArray[4][8];
uint32 i;
canInit();
canEnableloopback(canREG1, Internal_Lbk);
memcpy(&DataArray[0][0], Data, 8);
memcpy(&DataArray[1][0], Data2, 8);
memcpy(&DataArray[2][0], Data, 8);
memcpy(&DataArray[3][0], Data2, 8);
for (i = 1; i<= 4; i++){
canUpdateID(canREG1, i , 0x40000000U | 0x20000000U | (MsgID & 0x1FFFFFFFU));
ResultOfTransmission = canTransmit(canREG1, i, DataArray[i-1]);
canUpdateID(canREG1, i + 32, 0x40000000U | (i & 0x1FFFFFFFU));
}
while(1){
static UINT32 j = 33;
UINT8 i;
uint32 ValueOfMsgLst = 0, ValueOfNewdata = 0;
printf("**** Round nr %d*******\n", j);
ValueOfMsgLst = (uint32)(canREG1->IF2MCTL & (1 << 14));
ValueOfNewdata = (uint32)(canREG1->IF2MCTL & (1 << 15));
if (a < 4){
ResultOfTransmission = canGetData(canREG1, j , &data[a][0]);
}
a++;
}
