#!/usr/bin/env python
import hid_test
import time


def reset_tk1():
    """Manipulate the GPIO lines on the MTA1-USB-CH552 Programmer to issue a
    hardware reset to the TK1. The result is that TK1 again will be in firmware
    mode, so a new app can be loaded."""
    d = hid_test.ice40_flasher()
    d.gpio_set_direction(14, True)
    d.gpio_put(14, False)
    d.gpio_set_direction(14, False)
    d.close()

reset_tk1()