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https://github.com/picocomputer/rp6502
Picocomputer 6502 firmware
https://github.com/picocomputer/rp6502
6502 pi-pico raspberry-pi
Last synced: about 2 months ago
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Picocomputer 6502 firmware
- Host: GitHub
- URL: https://github.com/picocomputer/rp6502
- Owner: picocomputer
- License: bsd-3-clause
- Created: 2022-05-16T00:51:10.000Z (over 2 years ago)
- Default Branch: main
- Last Pushed: 2024-07-24T23:59:34.000Z (2 months ago)
- Last Synced: 2024-07-26T01:10:49.663Z (2 months ago)
- Topics: 6502, pi-pico, raspberry-pi
- Language: C
- Homepage:
- Size: 2.54 MB
- Stars: 78
- Watchers: 12
- Forks: 22
- Open Issues: 12
-
Metadata Files:
- Readme: README.md
- Funding: .github/FUNDING.yml
- License: LICENSE
Awesome Lists containing this project
README
# Rumbledethumps' Picocomputer 6502
The Picocomputer explores retro computing and game development by removing the barrier between genuine 8-bit hardware and modern devices. It can be built entirely with through-hole components, compactly using surface mount devices, or even on a breadboard. No programming devices need to be purchased and the only component used that wasn't available in the 1980s is the $4/€4 Raspberry Pi Pico.
Read the documentation:
https://picocomputer.github.io/
## Dev Setup
This is only for building the Pi Pico software. For writing 6502 software, see [rp6502-vscode](https://github.com/picocomputer/rp6502-vscode).
Install the C/C++ toolchain for the Raspberry Pi Pico. For more information, read [Getting started with the Raspberry Pi Pico](https://rptl.io/pico-get-started).
```
sudo apt install cmake gcc-arm-none-eabi libnewlib-arm-none-eabi build-essential gdb-multiarch
```
All dependencies are submodules. The following will download the correct version of all SDKs. It will take an extremely long time to recurse the project, so do this instead:
```
git submodule update --init
cd src/pico-sdk
git submodule update --init
cd ../..
```
The Pi Pico VGA is no longer a Picoprobe. It remains a CDC for console access. To debug Pico RIA or Pico VGA code, you need a Debug Probe or a third Pi Pico as a Picoprobe.
The VSCode launch settings connect to a remote debug session. I use multiple terminals for the debugger and console. You'll also want to add a udev rule to avoid a sudo nightmare. The following are rough notes, you may need to install software which is beyond the scope of this README.
Create `/etc/udev/rules.d/99-pico.rules` with:
```
#Picoprobe
SUBSYSTEM=="usb", ATTRS{idVendor}=="2e8a", MODE="0666"
```
Debug terminal:
```
$ openocd -f interface/cmsis-dap.cfg -c "adapter speed 5000" -f target/rp2040.cfg -s tcl
```
Console terminal:
```
$ minicom -c on -b 115200 -o -D /dev/ttyACM0
```
WSL (Windows Subsystem for Linux) can forward the Picoprobe to Linux:
```
PS> usbipd list
BUSID DEVICE
7-4 CMSIS-DAP v2 Interface, USB Serial Device (COM6)
PS> usbipd wsl attach --busid 7-4
```
WSL needs udev started. Create `/etc/wsl.conf` with:
```
[boot]
command="service udev start"
```