Tiny Tapeout FPGA demo board test designs

You want to know which test designs exist for the board, what each verifies, and which script loads it.

This page lists the test designs under designs/ and the host scripts that load them. What the check runs, what it leaves running and what it needs, including every DIP switch off, is on fpgas-verify: the Tiny Tapeout demo boards.

Script names the file in the test-designs repository, and Purpose what it does.

Script	Purpose
tt_fpga_program.py	Program a bitstream
tt_test_wrapper.py	Program + UART bridge (PTY) + run test
tt_pmod_wrapper.py	Program + release GPIOs + hand off to RPi GPIO test

Test names the test, Bitstream its design, Wrapper the script that loads it, and What it verifies what a pass shows.

Test	Bitstream	Wrapper	What it verifies
UART echo	uart/.../tt_fpga_platform.bin	tt_test_wrapper.py	Serial TX/RX via RP2350 bridge
SPI Flash ID	spi-flash-id/.../tt_fpga_platform.bin	tt_test_wrapper.py	Does not apply to this board, which has no flash
PMOD loopback	pmod-loopback/.../top.bin	tt_pmod_wrapper.py	GPIO inversion across wired pin pairs
PMOD pin ID	pmod-pin-id/.../top.bin	tt_pmod_wrapper.py	UART TX on each GPIO pin

The pin ID test is on The pin-id design. How to read a scan’s output is on How to scan an Arty A7’s wiring with the pin-id design. The hardware verification script, verify_hardware.py, orchestrates the tests.