Atari 2600 PlusCart-Pico

Description

Atari 2660 PlusCart-Pico is a porting on Al-Nafuur PlusCart to Raspberry Pi Pico platform.

Features

SD card support for ROMs
on-board flash storage (1MB or 16MB) for ROMs
Internet access and WiFi connection (with ESP8266)
PlusROM support
PlusStore support

Hardware

PlusCart-Pico consists of these modules:

Raspberry Pi Pico (purple version is recommended due to more pins available)
Atari 2600 cartridge breakout board link
ESP8266-01
SD card breakout board
USB UART (optional for debugging purposes)

Connections

RPi Pico pin	module pin
GP2...GP14	cartridge bus ADDR[0...12]
GP22...GP29	cartridge bus DATA[0...7]
GP16...GP19	microSD (MISO, CS, SCK, MOSI)
GP0, GP1, GP15	ESP8266 (TX, RX, RST)
GP20, GP21	USB-UART (RX, TX)

RPi Pico connections are defined in board.h

Build

Development environment is based on PlatformIO with two board profiles: pico and vccgnd_yd_rp2040. At first build all dependency library and whole development environment will be automatically installed and configured by PlatformIO.

Start the build:

pio run -e vccgnd_yd_rp2040
  or
pio run -e pico

Upload firmware on board:

pio run -e vccgnd_yd_rp2040 -t upload
  or
pio run -e pico -t upload