St244f Firmware Work

Converts the carrier-restricted ONU into a standalone Wi-Fi extender/AP compatible with any network provider.

The temperature sensor driver and the main communications stack were sharing a variable. The comm stack would interrupt the sensor driver while it was converting the raw analog data to a Celsius integer. For a split microsecond, the variable held a raw register value—which, coincidentally, interpreted as an integer, looked like a spike of 85 degrees.