GPIBGetCtrlLineStatus

CAPL Functions » GPIB » GPIBGetCtrlLineStatus Valid for: CANoe DE

Function Syntax

long GPIBGetCtrlLineStatus (long boardIdx);

Returns the status of the GPIB control lines.

Line Status Bytes: The value consists of 2 bytes. The low-order byte (bits 0 through 7) contains a mask indicating the capability of the GPIB interface to sense the status of each GPIB control line. The high-order byte (bits 8 through 15) contains the GPIB control line state information. If a bit is set (1), the corresponding control line can be monitored by the interface or is asserted, respectively. The following is a pattern of each byte.
- 7: EOI
- 6: ATN
- 5: SRQ
- 4: REN
- 3: IFC
- 2: NRFd
- 1: NDAC
- 0: DAV
-1: (all bits set in 4 bytes) is returned on error, if no GPIB driver is available.

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