Getstatus - ICP DAS USA mPAC-7186EXD-CAN User Manual

3.1.13

GetStatus


Description:
Read the CAN controller status and software buffer overflow flag
message.

Syntax:
void GetStatus(unsigned char *CANReg, unsigned char *OverflowFlag)

Parameter:
 *CANReg: The pointer for obtain the current CAN controller status.
For the information about the CANReg value meaning, please refer
to the following table.
Bit NO.
7 (MSB) Bus status. 1 for bus off, 0 for bus on.
6 Error status. 1 for at least one error, 0 for OK.
5 Transmit status. 1 for transmitting, 0 for idle.
4 Receive status. 1 for receiving, 0 for idle.
3 Transmit complete status. 1 for complete, 0 for incomplete.
2 Transmit buffer status. 1 for released, 0 for locked
1 Data overrun status. 1 for reception buffer overrun, 0 for OK.
0 (LSB) Receive buffer status. 1 for at least one message stored in the
reception buffer, 0 for empty.
 *OverflowFlag: CAN reception and transmission overflow flag infor-
mation For the information about the OverflowFlag value meaning,
please refer to the following table.
Bit NO.
Others Reserved
1 1 for reception software buffer overflow. 0 for normal.
0 (LSB) 1 for transmission software buffer overflow. 0 for normal.

Return:
None

Relative function:
3.1.14 ClearStatus
I-7188XBD-CAN/μPAC-7186EXD-CAN user manual (ver.1.0.3, May/09/2014)
Description
Description
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