Hi, I implemented both the VXI-11 Client (for Interrupt Channel), and VXI-11 Server (for Core and Abort channels). Both work fine in Linux. But not with NI-VISA. I have tested the NI-VISA for VXI-11 using MAX Explorer, and it works for the Core Channel which is the "VXI-11 Client" that VISA has, but when I send the SRQ thru VXI-11 interrupt channel, which is the VXI-11 server that VISA SHOULD have, but there is no response !!!. Here are the step that I've tested using MAX Explorer. 1. Open VISA Test Panel using VISA TCP/IP Resourses. 2. Create a resource with IP Address, and LAN Device Name. My VXI-11 Server received "device_link_1_svc" to reate a link 3. Send viEnableEvent with Event Type VI_EVENT_SERVICE_REQ, Mechanism is Queue. My VXI-11 Server received functions "create_intr_chan_1_svc", and "device_enable_srq_1_svc" with 40 bytes package, and I saved into memory. 4. When my device STB has changed (I emulate the STB changes every 1 minute), and it sends 40 bytes saved in step 3 back to VISA thru interrupt channel (VXI-11 Client). 5. Send viWaitOnEvent with Event Type VI_EVENT_SERVICE_REQ, Timeout = 30 (I tried with many number from 0 to 3000). This function always return error How do I test the NI-VISA SRQ? Please help. Thanks, Dominator

Instrument Control (GPIB, Serial, VISA, IVI)

... in fact the handle length received from VXI11 Client in the device_enable_srq_1 method is always: 0x0A05C8D0, instead of 40 (0x28 ? )

thx again ...

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