Re: [Linux-gpib-general] GPIB device development

[dave p. <dpe...@gm...>]

Hi Richard,
ibterm by default tries to read a response after a send but will not report
an error on timeout of the read.
cheers,
-Dave

On Thu, 18 Jun 2020, 10:52 Richard Klingler, <ric...@gm...>
wrote:

> 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
>
>
>
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