[Linux-gpib-general] GPIB device development

[Richard K. <ric...@gm...>]

Good morning (o;

As I decided to develop a GPIB device based on STM32F MCU I did a first
setup based on a Nucleo-F207ZG board with attached 75160/161 transceivers...

In my test code I just check for DAV and set NRFD and NDAC accordingly....

Interestingly...when I send for example a *IDN? query to my test device,
which doesn't send back any data (not yet ;o), I don't get any errors in
ibterm....so is this normal that ibterm doesn't wait for data and just
closes the communication?

Currently I just send out the received commands/Data out the USB CDC
device...

Sending *IDN? I get in my USB console:

CMD: 40
CMD: 3F
CMD: 25
DAT: *
DAT: I
DAT: D
DAT: N
DAT: ?
CMD: 3F
CMD: 20
CMD: 45

Or does it misread EOI and therefore closes the communication?


thanks in advance
richard