1.3 KiB
Install wiringpi to get the gpio command:
apt install wiringpi
There are five LEDs on the front. The indicate which subsystems work.
1: An error occurred 2: Test Error 3: Test Error 4: Test Error 5: Tester is IDLE (also, tester is READY)
LEDs 2, 3, and 4 form a pattern that indicate which test failed:
Test name | 2 (Green) | 3 (Blue) | 4 (White) | Reason for Failure | ====================+===========+===========+===========+====================+ SPI Valid | | x | x | The SPI flash was not found, or was not the correct model | USB Communication | x | | | The FPGA isn't assembled correctly, the USB pullup isn't correct, or the crystal is bad | Load Test Bitstream | | | | The FPGA isn't assembled correctly | Test SPI | | x | | Not all four wires are connected between the FPGA and the SPI | Test RGB | x | x | | TOUCH2 or the RGB LED are not assembled correctly | Test Touch | | x | x | TOUCH1, TOUCH3, or TOUCH4 are not assembled correctly | Final Bitstream | | | x | The final program could not be loaded |