Changes between Version 6 and Version 7 of newport/DigitalIO


Ignore:
Timestamp:
08/23/2019 06:10:25 PM (5 years ago)
Author:
Tim Harvey
Comment:

clarified sysfsgpio

Legend:

Unmodified
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  • newport/DigitalIO

    v6 v7  
    1212
    1313Newport GPIO Mapping:
    14 ||= Board =||= DIO^^^1^^^ =||= Connector^^^2^^^ =||= CN80XX GPIO^^^3^^^ =||= Linux gpio ^^^4^^^ =||= Termination^^^5^^^ =||= Notes^^^6^^^ =||
     14||= Board =||= DIO^^^1^^^ =||= Connector^^^2^^^ =||= CN80XX GPIO^^^3^^^ =||= Linux sysfsgpio ^^^4^^^ =||= Termination^^^5^^^ =||= Notes^^^6^^^ =||
    1515|| GW640x     || DIO0         || J15.1  || GPIO_24 || gpio-488 || RC/TVS termination || ||
    1616||            || DIO1         || J15.2  || GPIO_25 || gpio-489 || RC/TVS termination || ||
    … …  
    47472. This is the connector pinout
    48483. This is the GPIO as seen by the CN80XX
    49 4. This is the gpio mapped in linux accessible via {{{/sys/class/gpio}}}. Note that you will have to manually export these (see [wiki:gpio])
     494. This is the gpio mapped in linux accessible via the {{{sysfsgpio}}} interface at {{{/sys/class/gpio}}}. Note that you will have to manually export these (see [wiki:gpio])
    50505. Electrical termination includes an internal ~50kohm weak pull-down as well as the following if specified:
    5151 * '''RC''' consists of a 330ohm series current limit resistor and a 390pF cap to GND