Unrecognised INFO response

[elpollouk]

CommandStationError: Unrecognised INFO_RESPONSE, got 62 22 c1 81
    at ELinkCommandStation.<anonymous> (/mnt/data/projects/Itokawa/dist/devices/commandStations/elink.js:233:23)
    at Generator.next (<anonymous>)
    at fulfilled (/mnt/data/projects/Itokawa/dist/devices/commandStations/elink.js:5:58)

[elpollouk]

Preceded by (after letting laptop sleep):

dcc> 2020-02-08T10:36:45.070Z:ERROR:eLink: Unrecognised message type, got 97
2020-02-08T10:36:45.073Z:ERROR:eLink: Failed sending heartbeat request: CommandStationError: Unrecognised message type, got 97
2020-02-08T10:36:45.075Z:ERROR:eLink: CommandStationError: Unrecognised message type, got 97
    at ELinkCommandStation.<anonymous> (/mnt/data/projects/Itokawa/dist/devices/commandStations/elink.js:200:27)
    at Generator.next (<anonymous>)
    at fulfilled (/mnt/data/projects/Itokawa/dist/devices/commandStations/elink.js:5:58)
(node:975) UnhandledPromiseRejectionWarning: CommandStationError: Unrecognised message type, got 97
    at ELinkCommandStation.<anonymous> (/mnt/data/projects/Itokawa/dist/devices/commandStations/elink.js:200:27)
    at Generator.next (<anonymous>)
    at fulfilled (/mnt/data/projects/Itokawa/dist/devices/commandStations/elink.js:5:58)
(node:975) UnhandledPromiseRejectionWarning: Unhandled promise rejection. This error originated either by throwing inside of an async function without a catch block, or by rejecting a promise which was not handled with .catch(). (rejection id: 1)
(node:975) [DEP0018] DeprecationWarning: Unhandled promise rejections are deprecated. In the future, promise rejections that are not handled will terminate the Node.js process with a non-zero exit code.

[elpollouk]

Actual cause is a derailment/short

[elpollouk]

Debug dump of the error:

2020-04-28T13:13:22.187Z: Sent: 21 24 05
2020-04-28T13:13:22.190Z: Recv: 62 22 40 00
2020-04-28T13:13:27.192Z: Sent: 21 24 05
2020-04-28T13:13:27.194Z: Recv: 62 22 40 00
2020-04-28T13:13:32.199Z: Sent: 21 24 05
2020-04-28T13:13:32.202Z: Recv: 62 22 40 00
2020-04-28T13:13:32.842Z: Recv: 61 00 61
2020-04-28T13:13:32.843Z: Recv: 61 00 61
2020-04-28T13:13:32.844Z: Recv: 61 00 61
2020-04-28T13:13:37.207Z: Sent: 21 24 05

[elpollouk]

More complete dump:

2020-04-28T13:23:31.140Z: Recv: 62 22 40 00
2020-04-28T13:23:35.557Z: Recv: 61 00 61
2020-04-28T13:23:35.558Z: Recv: 61 00 61
2020-04-28T13:23:35.559Z: Recv: 61 00 61
2020-04-28T13:23:36.142Z: Sent: 21 24 05
2020-04-28T13:23:36.164Z: Recv: 62 22 c1 81
2020-04-28T13:23:51.173Z: Close: /dev/ttyACM0
2020-04-28T13:23:51.473Z: Open: /dev/ttyACM0
2020-04-28T13:23:51.474Z: Sent: 21 24 05
2020-04-28T13:23:51.476Z: Recv: 62 22 c1 81

[elpollouk]

Confirmed to be indicating a short circuit. The "clear error" message appears to be [0x21, 0x81, 0xa0] which should be acknowledged with [0x62, 0x22, 0x40] if there is no longer a short.