PHP script to accompany esp32_spirecovery.ino

esp32_spirecovery.php

<?php
require_once("vendor/autoload.php");
use lepiaf\SerialPort\SerialPort;
use lepiaf\SerialPort\Parser\SeparatorParser;
use lepiaf\SerialPort\Configure\TTYConfigure;

$bios = fopen("bios.bin", "r");

$configure = new TTYConfigure();
$configure->removeOption("9600");
$configure->setOption("115200");

$block = 0;

$serialPort = new SerialPort(new SeparatorParser(), $configure);

$serialPort->open("/dev/ttyUSB0");
while (true)
{
	$data = $serialPort->read();
    echo $data."\n";

    if ($data === "W") {
    	echo "write block " . $block . "\n";
    	$block++;
    	$data = fread($bios, 4096);
    	if ($data === false)
    	{
    		echo "done!\n";
    		exit();
    	}
    	$serialPort->write($data);
    }
}