Command list - TheOnlyJoey/openjvs GitHub Wiki
Command packets consist of the following:
| sync (0E) | destination address | length of data + checksum | data byte 1 | data byte 2 | ... | data byte N-1 | checksum |
Commands marked as 'required' must be implement to conform to the standard. The rest can be left unimplemented, support is indicated by the reply to command 0x14 'get slave features'.
| ID | Required | Description |
|---|---|---|
| broadcast commands (meant for all active nodes, sent to node ID FF) | ||
| F0 | x | reset |
| F1 | x | set node address |
| F2 | set up communications | |
| initialization commands | ||
| 10 | x | read ID data |
| 11 | x | get command format revision |
| 12 | x | get JVS revision |
| 13 | x | get supported communications versions |
| 14 | x | get slave features |
| 15 | convey ID of main board | |
| I/O commands | ||
| 20 | read switch inputs | |
| 21 | read coin inputs | |
| 22 | read analog inputs | |
| 23 | read rotary inputs | |
| 24 | read key code input? | |
| 25 | read screen position input (duckhunt gun style) | |
| 26 | read general-purpose (unrelated to player) input | |
| 2e | something with payouts? | |
| 2f | x | request to retransmit data in case of checksum failure |
| 30 | decrease number of coins | |
| 31 | output the number of payouts? | |
| 32 | general-purpose output | |
| 33 | analog output | |
| 34 | output character data, e.g. to LCD | |
| 35 | output the total number of coins? | |
| 36 | subtract payouts? | |
| 37 | general-purpose output 2 | |
| 38 | general-purpose output 3 | |
| Manufacturer-specific | ||
| 60-7F | reserved for manufacturer-specific commands | |