Minimig Selftest
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Suggestion for how to test the minimig:
- Sequence:
- Jumper 2-3 (MCU TxD)
- MCU(PIC18) verify it's own operation and sends result too TxD (builtin?)
- Checks: 20 MHz clock, Flash interface, Rs232(rxd,rts,cts), FPGA jtag
- Upload test config-1 to FPGA.
- Check FPGA selftest is ok.
- Upload test config-2 to FPGA.
- FPGA
- Check RAM with patterns.
- Check CPU with opcode run.
- Send picture pattern to VGA
- Check Keyboard with challenge-response.
- Check Mouse with challenge-response.
- Send 1 kHz to Left => Silence => 2 kHz Right => Silence => Repeat..
- Display joystick1 + joystick2 + keyboard + mouse
- Testing FPGA:
- Latch -> ALU+1 -> Latch -> ALU+1 -> Latch -> Repeat..
A test would be useful to test the board when building or when a malfunction is suspected.