All LEDs must be lit in switch testing mode

[mondalaci]

erase-hardware-config.ts
factory-update-uhk60.ts firmwareDir uhk60v2
write-hardware-config.ts uhk60v2 ansi
set-variable.ts testSwitches 1

After executing the above but before pressing any key, the ANSI LShift LED should be enabled, but it's not on the UHK 60.

[mondalaci]

Now all the LEDs light up, but then switch testing only works on the right half.

Pressing a key on the right half makes the LEDs of both halves go out, which is inconsistent with the behavior of the UHK 80 on which the halves work separately in this respect. Afterward pressing keys only on the right half make their LEDs light up, not on the left half.

To reproduce this, the hardware configuration must be erased according to the above instructions.

[kareltucek]

Actually, I have been digging into the crc... ...and turns out that crc of an empty message is zero, which obviously isn't ideal, as a zero message contains zero as its crc.

In the light of that a reasonable fix seems to be to require any message to simply be nonzero in addition to having a valid crc.