Difference between revisions of "CAN"
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Please note that many parameters repeat between different message IDs. | Please note that many parameters repeat between different message IDs. | ||
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{| class="wikitable" | {| class="wikitable" | ||
|+ 504 data | |+ 504 data | ||
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|- | |- | ||
| 07 || Unknown, 0x95 during charging, 0x00 otherwise || | | 07 || Unknown, 0x95 during charging, 0x00 otherwise || | ||
| + | |} | ||
| + | |||
| + | {| class="wikitable" | ||
| + | |+ 506 data | ||
| + | |- | ||
| + | ! Byte !! Value || Unit | ||
| + | |- | ||
| + | | 00 || Battery state bitmask || Bits from lst. sig.: 0 = charging mode, 1 = voltage on pins, 3 = initialized after connection | ||
| + | |- | ||
| + | | 01 || Battery state bitmask || Bits from lst. sig.: 0 = charging mode, 4 = charging in progress | ||
| + | |- | ||
| + | | 02, 03 || Charging current || Amps * 10 | ||
| + | |- | ||
| + | | 04-05 || Voltage per cell (avg? max? min?) || Volts * 1000 | ||
| + | |- | ||
| + | | 06 || Unknown || | ||
| + | |- | ||
| + | | 07 || Battery mode || 0x10 = charging mode, 0x20 = riding mode | ||
|} | |} | ||
Revision as of 22:11, 10 January 2021
A standard automotive protocol, CAN operates on two wires as a differential signal. These are called CAM High and CAM Low. Both of these wires have some electric potential against common ground, but the ground is not involved in the connection as just the two wires are used. CAN is a bus where multiple devices are connected on the same physical line. The bus also has to be terminated by a resistor.
Super Soco CAM
CPX
The CPX uses 250 000 bps CAM bus terminated by the scooter or the charger. This means if direct connection to the battery is required, the used CAM interface needs terminate the bus or a 120 Ohm resistor needs to be installed manually across the two pins. Each message sent contains an ID that designates a type of the message and 8 bytes of data.
| Message ID | Purpose |
|---|---|
| 504 | Charging information |
| 506 | Battery state and charging information |
| 54E | Battery parameters and information |
Please note that many parameters repeat between different message IDs.
| Byte | Value | Unit |
|---|---|---|
| 00, 01 | Unknown | |
| 02, 03 | Battery Voltage | Volts * 10 |
| 04, 05 | Charging Current | Amps * 10 |
| 06 | Unknown | |
| 07 | Unknown, 0x95 during charging, 0x00 otherwise |
| Byte | Value | Unit |
|---|---|---|
| 00 | Battery state bitmask | Bits from lst. sig.: 0 = charging mode, 1 = voltage on pins, 3 = initialized after connection |
| 01 | Battery state bitmask | Bits from lst. sig.: 0 = charging mode, 4 = charging in progress |
| 02, 03 | Charging current | Amps * 10 |
| 04-05 | Voltage per cell (avg? max? min?) | Volts * 1000 |
| 06 | Unknown | |
| 07 | Battery mode | 0x10 = charging mode, 0x20 = riding mode |