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



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