## Control Center Serial

#### GPIO Set Command

    <gpio_set value="value"/>

Set the value of current GPIO outputs.

Parameters

value
  a bitmask specifying which outputs should be set to logic high and which should be set to logic low.

Details

The following table maps the named lines on the Aardvark I2C/SPI and the Promira Serial Platform output cable to bit positions in the value mask.

If a line is configured as an input or not activated for GPIO, the output value will be cached. The next time the line is an output and activated for GPIO, the output value previously set will automatically take effect.

All GPIO API functions will index these lines through a single 8-bit masked value. Thus, each bit position in the mask can be referred back its corresponding line through the mapping described below.

Pin # | Bit Value | Description
Pin 1 | 0x01 | I2C SCL line
Pin 3 | 0x02 | I2C SDA line
Pin 5 | 0x04 | SPI MISO line
Pin 7 | 0x08 | SPI SCLK line
Pin 8 | 0x10 | SPI MOSI line
Pin 9 | 0x20 | SPI SS line

Please see the Aardvark I2C/SPI Adapter User Manual or the Promira Serial Platform User Manual for more information.