The-Homebrew-Cloud/game_and_watch_fun

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WRR e556638da6 Add a couple of test firmwares to control the display backlights.

2020-11-23 03:24:10 -05:00

..

Add a couple of test firmwares to control the display backlights.

2020-11-23 03:24:10 -05:00

Makefile

Add a couple of test firmwares to control the display backlights.

2020-11-23 03:24:10 -05:00

README.md

Add a couple of test firmwares to control the display backlights.

2020-11-23 03:24:10 -05:00

README.md

Game and Watch Backlight Test: GPIO Control

This is a simple test firmware for the Nintendo Game and Watch.

It demonstrates how to toggle the display's backlight LEDs; there are three of them.

Building and Running

This program can be build and flashed like a normal bare-metal STM32 program.

Run make to build the program using the arm-none-eabi-gcc toolchain, and flash it using OpenOCD / ST-util / etc.

The Game and Watch ships with readout protection enabled, so you can only load programs like this after wiping the stock firmware and unlocking the chip (stm32h7x unlock 0 in an OpenOCD console). Note that unlocking the chip PERMANENTLY erases the stock firmware. You won't be able to do a "factory reset" unless you back up the original internal Flash bank first.