Changes between Version 1 and Version 2 of laguna/DigitalIO


Ignore:
Timestamp:
08/23/2019 06:12:12 PM (3 months ago)
Author:
Tim Harvey
Comment:

clarified sysfsgpio

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  • laguna/DigitalIO

    v1 v2  
    1212
    1313Laguna GPIO Mapping:
    14 ||= Board =||= DIO^^^1^^^ =||= Connector^^^2^^^ =||= Controller / GPIO^^^3^^^ =||= Linux gpio ^^^4^^^ =||= Termination^^^5^^^ =||= Notes =||
     14||= Board =||= DIO^^^1^^^ =||= Connector^^^2^^^ =||= Controller / GPIO^^^3^^^ =||= Linux sysfsgpio ^^^4^^^ =||= Termination^^^5^^^ =||= Notes =||
    1515|| GW2388-4   || DIO0         || J9.1  || PCA9555 i2c0-0x23 P1.0 || gpio-108 || 22.1ohm R/C/TVS termination || ||
    1616||            || DIO1         || J9.3  || PCA9555 i2c0-0x23 P1.1 || gpio-109 || 22.1ohm R/C/TVS termination || ||
     
    5454 - PCA9555 i2c0-0x23 can source/sink approximately 30mA with an internal pull-up of appx 100k
    5555 - CN3XXX GPIO can source/sink approximately 10uA with no internal pull-up/down
    56 4. This is the gpio mapped in linux accessible via {{{/sys/class/gpio}}}.
     564. This is the gpio mapped in the linux {{{sysfsgpio}}} API accessible via {{{/sys/class/gpio}}}.
    57575. Electrical termination includes in some cases a series resistor (R), a capacitor to GND (C), and a Transient Voltage Suppression (TVS) diode
    5858