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More protocol docs and adjust program according to specs #9

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Sep 6, 2019
Merged

More protocol docs and adjust program according to specs #9

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3ab7585
WIP: work on protocol docs
eni Sep 5, 2019
1223c2b
fix hex commands according to specs documented
eni23 Sep 6, 2019
09d5e8c
fix typo
eni23 Sep 6, 2019
c15c9d3
grammarnerds wants typo fixes again
eni23 Sep 6, 2019
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WIP: work on protocol docs
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@eni
eni committed Sep 5, 2019
commit 3ab75852ba86e61f171c820a2c2ce012c8bd9783
79 changes: 64 additions & 15 deletions README.md
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Expand Up @@ -59,27 59,76 @@ muuvctl get --follow

## Serial protocol

The protocol is not fully known.
The protocol seemst to be called TiMOTION F-Bus.
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Baudrate is: `9600`
The following is known (possibly not everything that the controller can do):

The table sends the following for its position:
### RX
The controller tin the table sends the following:
```c
uint8_t StartByte = 0x98;
uint8_t StartByte = 0x98;
uint8_t Param;
uint8_t Param;
uint8_t Data;
uint8_t Data;
```
b'\x98'
b'\x98'
b'\x03' <- can be b'\x00' as well
b'\x03' <- can be b'\x00' as well
b'O' <- position ord(pos)
b'O' <- position ord(pos)
`Param` is the following:
```c
STOPPED = 0x00;
SAVE_TRIGGED = 0x01;
MOVING = 0x03;
```
`Data` is normally the position of the table.

To move the table send the following:
### TX

You need to send the following struct to control it
```c
uint8_t StartByte = 0xD8;
uint8_t StartByte = 0xD8;
uint8_t Param;
uint8_t Command;
uint8_t Command;
```
b'f' > 102
b'\x00' > 0 (no move) 1 (up) 2(down)
b'\x00' > 0 (no move) 1 (up) 2(down)
b'\xd8' > 216
b'\xd8' > 216
Only known value for `Param` is `0x66` which is used in all commands.


`Command` is the following:
```c
STOP = 0x00;
DOWN = 0x01;
UP = 0x02;
RESET = 0x03;
POS1 = 0x04;
POS2 = 0x08;
POS3 = 0x10;
POS4 = 0x20;
SAVE = 0x40;
```
There is no known command yet to move the table to an specific position. You need to send up or down until the table reaches the desired position, then send stop.

#### TX Examples

* Move up: `0xD8, 0xD8, 0x66, 0x02, 0x02`
* Move down: `0xD8, 0xD8, 0x66, 0x01, 0x01`
* Stop: `0xD8, 0xD8, 0x66, 0x00, 0x00`
* Goto POS1: `0xD8, 0xD8, 0x66, 0x04, 0x04`
* Goto POS4: `0xD8, 0xD8, 0x66, 0x20, 0x20`
* Reset: `0xD8, 0xD8, 0x66, 0x03, 0x03`

##### Save
* Send min. 32x SAFE: `0xD8, 0xD8, 0x66, 0x40, 0x40`
* Optional: wait until table sends: `0x98, 0x98, 0x01, 0x01, POS, POS `
* Send 4x wanted POS, for POS1: `0xD8, 0xD8, 0x66, 0x04, 0x04`
* Send 1x STOP: `0xD8, 0xD8, 0x66, 0x00, 0x00`


#### Notes

There seems to be no way to move the table to an specific position. You need to send up or down until the table reaches the desired position, then send stop.




## Contributing

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