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Test images

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Images are not stored in the repository (to keep it lightweight) — this page only lists links and what each one verifies. Download the file you need and copy it to the SD card.

How to use

1. Find the feature you want to verify in the table below (or on its menu page).
2. Get the image — either download it via the link, or, on an RP2350 board with WiFi, grab one straight from the built-in Web Archives (see below).
3. Load it through Storage and follow the "Expected result" column.

💡 Easiest source on RP2350: the Web Archives browser (Network → F5 → Web Archives) downloads .trd/.scl/.tap images from online catalogs straight to SD (or RAM to run immediately) — no PC needed.

Catalog

Image	Feature	What it verifies	Expected result	Link
FPGA48all.tap	Video › ULA	48K ULA behaviour (port #01FE)	Correct ULA output on 48K	dev test file
any TR-DOS .trd	Storage › Betadisk	Basic TR-DOS	Catalogue reads, programs start	Web Archives / VTRD
48.udi	Storage › Betadisk (UDI)	UDI read	Loads (needs a write-enabled disk)	dev test file
.scl w/o boot + Auto-boot on	Storage › TR-DOS Auto-boot	Boot injection	Disk auto-starts	Web Archives
CP/M .td0 (Q_DOS / CMP01 / Dos5)	Storage › Betadisk (TD0)	LZH unpack	CP/M disk boots	dev test file
any .iso	Storage › IDE/HDD (ATAPI)	CD-ROM detect	Slot shows Type CD-ROM, Size … MB (ISO)	any ISO

Good sources for images

• VTRD.in — TR-DOS disk archive (.trd/.scl)
• World of Spectrum — games and utilities
• Spectrum Computing — searchable software catalog