Hi,
Kim, Jonghyun (NIH/CC) [F] wrote:
> Hi.
>
Sorry for the late reply.
> I wanna use S526 DAQ board under Xenomai 2.5.x.
> The major aim of S526 board is to measure angle by using quadrature encoder.
>
> In contrast to AD and DA function of S526 board (e.g. insn_read and
> insn_write),
> I was not able to find any sample code about counter function for quadrature
> encoder.
>
> Could I get a sample code about counter for quadrature encoder in S526 board?
> (insn_read and insn_write are good example of the sample code)
>
No sample program is available for this board. The main reason is that
we did not have enough time to work on a unified user-space API which
would work with any acquisition board (instead of developing a
specific test program for each board).
Simon ported the driver starting from the comedi version. In this
solution, the board registers were configured in user space thanks to
a configuration instruction.
A4L_INSN_CONFIG_GPCT_QUADRATURE_ENCODER:
/*
* data[0]: Application Type
* data[1]: Counter Mode Register Value
* data[2]: Pre-load Register Value
* data[3]: Conter Control Register
*/
A4L_INSN_CONFIG_GPCT_SINGLE_PULSE_GENERATOR:
/*
* data[0]: Application Type
* data[1]: Counter Mode Register Value
* data[2]: Pre-load Register 0 Value
* data[3]: Pre-load Register 1 Value
* data[4]: Conter Control Register
*/
A4L_INSN_CONFIG_GPCT_PULSE_TRAIN_GENERATOR:
/*
* data[0]: Application Type
* data[1]: Counter Mode Register Value
* data[2]: Pre-load Register 0 Value
* data[3]: Pre-load Register 1 Value
* data[4]: Conter Control Register
*/
> Or, how can I use the counter function of S526 board?
>
> Thanks,
>
>
> Jonghyun
> _______________________________________________
> Xenomai-help mailing list
> [email protected]
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--
Alexis.
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