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added traffic examples

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john30
2019-11-30 09:38:09 +01:00
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docs/enhanced_proto.md
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@@ -68,3 +68,62 @@ These are the predefined symbols as used above.
* RECEIVED 0x1
* STARTED 0x2
* FAILED 0xa
## Examples
### Passive receive
The data sequence (without SYN, ACK, and CRC) `1508951200 / 0164` when ebusd is only listening to traffic on the bus would usually be transferred as follows (with all extra symbols seen on the bus):
|order|eBUS proto|eBUS byte|sender|enhanced proto|enhanced byte|
|----:|-----|-----|-----|-----|-----|
|1|`SYN`|0xAA|interface|`<RECEIVED> <0xAA>`|0xC6 0xAA|
|2|`QQ`|0x15|interface|`<0x15>`|0x15|
|3|`ZZ`|0x08|interface|`<0x08>`|0x08|
|4|`PB`|0x95|interface|`<RECEIVED> <0x95>`|0xC6 0x95|
|5|`SB`|0x12|interface|`<0x12>`|0x12|
|6|`NN`|0x00|interface|`<0x00>`|0x00|
|7|`CRC`|0xAF|interface|`<RECEIVED> <0xAF>`|0xC6 0xAF|
|8|`ACK`|0x00|interface|`<0x00>`|0x00|
|9|`NN`|0x01|interface|`<0x01>`|0x01|
|10|`DD`|0x64|interface|`<0x64>`|0x64|
|11|`CRC`|0xFF|interface|`<RECEIVED> <0xFF>`|0xC7 0xBF|
|12|`ACK`|0x00|interface|`<0x00>`|0x00|
|13|`SYN`|0xAA|interface|`<RECEIVED> <0xAA>`|0xC6 0xAA|
### Active successful send
The same data sequence (without SYN, ACK, and CRC) `1508951200 / 0164` when initiated by ebusd as master (with address 0x15) would usually be transferred as follows (with all extra symbols seen on the bus):
|order|eBUS proto|eBUS byte|sender|enhanced proto|enhanced byte|
|----:|-----|-----|-----|-----|-----|
|1| |0x15|ebusd|`<START> <0x15>`|0xC8 0x95|
|2|`SYN`|0xAA|interface|`<RECEIVED> <0xAA>`|0xC6 0xAA|
|3|`QQ`|0x15|interface|`<0x15>`|0x15|
|4| |0x15|ebusd|`<STARTED> <0x15>`|0xC8 0x95|
|5|`ZZ`|0x08|ebusd|`<0x08>`|0x08|
|6|`ZZ`|0x08|interface|`<0x08>`|0x08|
|7|`PB`|0x95|ebusd|`<RECEIVED> <0x95>`|0xC6 0x95|
|8|`PB`|0x95|interface|`<RECEIVED> <0x95>`|0xC6 0x95|
|9|`SB`|0x12|ebusd|`<0x12>`|0x12|
|10|`SB`|0x12|interface|`<0x12>`|0x12|
|11|`NN`|0x00|ebusd|`<0x00>`|0x00|
|12|`NN`|0x00|interface|`<0x00>`|0x00|
|13|`CRC`|0xAF|ebusd|`<RECEIVED> <0xAF>`|0xC6 0xAF|
|14|`CRC`|0xAF|interface|`<RECEIVED> <0xAF>`|0xC6 0xAF|
|15|`ACK`|0x00|interface|`<0x00>`|0x00|
|16|`NN`|0x01|interface|`<0x01>`|0x01|
|17|`DD`|0x64|interface|`<0x64>`|0x64|
|18|`CRC`|0xFF|interface|`<RECEIVED> <0xFF>`|0xC7 0xBF|
|19|`ACK`|0x00|ebusd|`<0x00>`|0x00|
|20|`ACK`|0x00|interface|`<0x00>`|0x00|
|21|`SYN`|0xAA|interface|`<RECEIVED> <0xAA>`|0xC6 0xAA|
### Active failed traffic
A failed arbitration when initiated by ebusd as master (with address 0x15) would usually be transferred as follows (with all extra symbols seen on the bus):
|order|eBUS proto|eBUS byte|sender|enhanced proto|enhanced byte|
|----:|-----|-----|-----|-----|-----|
|1| |0x15|ebusd|`<START> <0x15>`|0xC8 0x95|
|2|`SYN`|0xAA|interface|`<RECEIVED> <0xAA>`|0xC6 0xAA|
|3|`QQ`|0x03|interface|`<0x03>`|0x03|
|4| |0x15|ebusd|`<FAILED> <0x15>`|0xE8 0x95|