If the log fills up (which should take 4 or 5 write operations), the write
will fail, but a subsequent read will succeed.
-A successful test will turn on the green led. A failed test will turn on
-the red led. The yellow led blinks during the steps of the full test.
+A successful test will turn on the LED 1. A failed test will turn on
+the LED 0. LED 1 blinks during the steps of the full test. A serial
+message whose last byte is 0x80 for success and all other values
+indicate failure is also sent at the end of the test.
Tools: