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ahnjs1987

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    Is there any example for mcc118 and mcc172 together?

    in Measurement Computing (MCC)

    Posted · Edited by ahnjs1987

    Is there any example for mcc118 and mcc172 together?

    I set HW connection between MCC172 and MCC118 and RPI.

    GPIO17 : EXTERNAL TRIGGER

    I want to synchronize data between 2 HATs, so I also connect MCC172's clock source to MCC118.

    GPIO5 : EXTERNAL CLOCK from MCC172 to MCC118

    And I attached test source code, but it returns MCC118 HW overrun error with clock sync.

    (It works fine with separate clock.)

    upload_forum.c

    If I want to use MCC118 and MCC172 together, Could I set data syncronization between MCC118 and MCC172??

    in Measurement Computing (MCC)

    Posted · Edited by ahnjs1987

    Hello @Fausto

    I configured HW and SW what you suggested.

    But there were some problem on reading sampled data.

    When I set clock source on MCC172 to SOURCE_MASTER and MCC118 to EXT_CLOCK, it looks like MCC118 get data but MCC172 can't get data.

    When I set clock source on MCC172 to SOURCE_LOCAL and MCC118 to internal clock, Both of them works properly.

    Is there any guide or example like this?

    I attached file what I modified.

    upload_forum.c

     

    @JRys Could you review my question?

    If I want to use MCC118 and MCC172 together, Could I set data syncronization between MCC118 and MCC172??

    in Measurement Computing (MCC)

    Posted

    If I want to use MCC118 and MCC172 together, Could I set data syncronization between MCC118 and MCC172??

    MCC118 use clock signal for sampling, and MCC172 also use clock for sampling.

    If I set options param to OPTS_EXTCLOCK on mcc118_a_in_scan_start and OPTS_CONTINUOUS on mcc172_a_in_scan_start, Could those devices(MCC118,MCC172) syncronize their sampling period?

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