GPIO Ports

Zebra Aurora Focus JavaScript Programmer's Guide

GPIO Ports

Use the gpio field to send a pulse to available ports. Parameters of the pulse, such as length and delay, can be specified in the GPIO Mapping menu in General Settings. Pulse polarity can be set through the script. One of the three values of the helper GpioPolarityResult enum object.

gpio: IGpioPort[];

Helper Object GpioPolarityResult Properties
Value	Description
GpioPolarityResult.HIGH	Pulse has a high value.
GpioPolarityResult.LOW	Pulse has a low value.
GpioPolarityResult.JOB_SETTINGS	Pulse parameters are taken from the specification in the GPIO Mapping settings in the job.

The field should be an array of objects. Each object contains two properties: port_number and polarity. Port_number is zero-starting number of port. Polarity can be one of three values described in Table 3.

The initial value can be set through the GPIO Mapping tab in the job.

The port that is written must be set as an output. It can be done through GPIO Mapping in device settings.

gpio field of the DEVICE object can be used.

/**
 * Sends a pulse to the n-th port if the n-th tool execution was successful.
 * @param {IMainArguments} input_result - object with results of the job.
 * @returns {IMainResult} - object defining outputs per interface.
 */
export function onResults(input_result) {
    // For each tool for the FlowBuilder
    // take the success value, if positive send HIGH pulse
    let gpio_results = [];
    for (let i = 0; i < input_result.tool_results.length; ++i) {
        if (DEVICE.gpio.ports[i].state === GpioPortState.OUTPUT) {
            if (input_result.tool_results[i].success) {
                gpio_results.push({
                    port_number: i,
                    polarity: GpioPolarityResult.JOB_SETTINGS
                })
            }
        }
    }
    return {
        gpio: gpio_results
    };
}