STM32F103RET6 ZX Spectrum 48K
The STM32F103RET6 microcontroller with its 64 KB SRAM was a perfect fit for this project.
Electronic schematic
Circuit generates an RGB signal and can be connected directly to SCART input of the TV. ZX Spectrum ROM is patched so programs are loaded from SD card.
Finished electronic circuit
In operation
I used RGB to composite/S-Video converter to capture videos because my capture card doesn't have an RGB input.
Downloads
| stm32f103ret6_zx_spectrum.bin | BIN file for STM32F103RET6 microcontroller |
| gal16v8_zx_spectrum.jed | JEDEC file for GAL16V8 |