h1romas4 / m5stack-synth-emulation

GENESIS/MEGADRIVE(YM2612+SN76489) VGM Emulator for ESP32/M5Stack

m5stack-synth-emulation

GENESIS/MEGADRIVE(YM2612+SN76489) VGM player on ESP32/M5Stack

Demo

https://www.youtube.com/watch?v=dunNtkFS8gc

Require

• M5Stack
• esp32-idf toolchain setup

$ xtensa-esp32-elf-gcc -v
gcc version 5.2.0 (crosstool-NG crosstool-ng-1.22.0-80-g6c4433a)

Build

Compile

git clone --recursive https://github.com/h1romas4/m5stack-synth-emulation.git
cd m5stack-synth-emulation
# This repository includes eps-idf v3.2.3
export IDF_PATH=$(pwd)/esp-idf
make

Upload sample VGM file to M5Stack flash

./flashrom.sh vgm/ym2612.vgm

Play music

make flash monitor

Create VGM file

• mml2vgm by kumatan san
• mucomMD2vgm by kumatan san

Binary release

Extract release.tar.gz and Assign the binary to the following address:

address	module
0x1000	build/bootloader/bootloader.bin
0x8000	build/partitions.bin
0xe000	build/ota_data_initial.bin
0x10000	build/m5stack-synth-emulation.bin
0x211000	vgm/ym2612.vgm or vgm/sn76489.vgm

python ${IDF_PATH}/components/esptool_py/esptool/esptool.py \
    --chip esp32 \
    --port <SET IT TO YOUR COM PORT> \
    --baud 921600 \
    --before default_reset \
    --after hard_reset write_flash -z \
    --flash_mode dio --flash_freq 80m \
    --flash_size detect \
    0x1000 ./build/bootloader/bootloader.bin \
    0x8000 ./build/partitions.bin \
    0xe000 ./build/ota_data_initial.bin \
    0x10000 ./build/m5stack-synth-emulation.bin \
    0x211000 ./vgm/ym2612.vgm

Dependencies

name	version
esp-idf	v3.2.3
esp32-arduino	1.0.4
m5stack	0.2.9

License

GNU General Public License v2.0

Thanks!

• sn76489.c
• ym2612.cpp