Atari 2600 emulator for Raspberry Pi Pico and MURMULATOR (development) board with VGA output.

Based on Atari 2600 emulator by David Grubb https://github.com/dgrubb/HiFive1-2600/tree/master/atari

To get it working you should have an Murmulator (development) board with VGA output. Schematics available here at https://github.com/AlexEkb4ever/MURMULATOR_classical_scheme

Or connect your Raspberry Pi Pico to VGA using 8 resistors:

GP6 --> R1K  --> VGA #3 (Blue)
GP7 --> R330 --> VGA #3 (Blue)

GP8 --> R1K  --> VGA #2 (Green)
GP9 --> R330 --> VGA #2 (Green)

GP10 --> R1K  --> VGA #1 (Red)
GP11 --> R330 --> VGA #1 (Red)

GP12 --> R100  --> VGA #13 (Horizontal Sync)
GP13 --> R100 --> VGA #14 (Vertical Sync)
GND --> VGA #5,6,7,8,10

Make sure you have pico sdk installed. Then clone project and necessary libraries:

mkdir ~/pico
cd ~/pico
git clone https://github.com/xrip/pico-atarti2600-murmulator.git
git clone [email protected]:fruit-bat/pico-vga-332.git

You have two targets to build project:

1. Local linux machine with SDL2 to test it without flashing to Pi Pico

# make sure you have libsdl2-dev installed
sudo apt install libsdl2-dev
mkdir host-build
cd host-build
cmake -DPICO_PLATFORM=host ..
make -j4
# now you're ready to run it and enjoy
./atari2600

2. Raspberry Pi Pico

mkdir build
cd build
cmake ..
make -j4
# upload .uf2 file to your pico and enjoy