This is a series of targets based around my original breadboard prototype:
Support for the following:
- USB keyboard
- PS/2 keyboard
- USB joysticks
- 50Hz/60Hz HDMI video
- HDMI/PWM audio
- Audio input (load from tape)
- SPI SD card
- Serial port debug
- Ringo's low resolution mode
All of these targets share the same pinout but make different use of the 4 audio pins:
| Audio | Display mode | Firmware |
|---|---|---|
| HDMI | 720x576x50Hz | ZxSpectrumBreadboardHdmiAudio720x576x50Hz.uf2 |
| HDMI | 720x540x50Hz | ZxSpectrumBreadboardHdmiAudio720x540x50Hz.uf2 |
| HDMI | 640x480x60Hz | ZxSpectrumBreadboardHdmiAudio.uf2 |
| 1 pin PWM | 640x480x60Hz | ZxSpectrumBreadboardHdmi1PinAudio.uf2 |
| 2 pin PWM | 640x480x60Hz | ZxSpectrumBreadboardHdmi2PinAudio.uf2 |
| 4 pin PWM | 640x480x60Hz | ZxSpectrumBreadboardHdmi4PinAudio.uf2 |