You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
46 lines
890 B
46 lines
890 B
# I2C master
|
|
|
|
## Commands
|
|
|
|
### WRITE (0x00)
|
|
|
|
*Request:*
|
|
- u16 - slave address
|
|
- u8[] - bytes to write
|
|
|
|
### READ (0x01)
|
|
|
|
*Request:*
|
|
- u16 - slave address
|
|
- u16 - number of bytes to read
|
|
|
|
*Response:*
|
|
- u8[] - received bytes
|
|
|
|
### READ_REG (0x02)
|
|
|
|
Read a register value. First writes the register number, then reads a number of bytes.
|
|
For devices implementing auto-increment, the register width field can be used to read
|
|
multiple registers at once.
|
|
|
|
*Request:*
|
|
- u16 - address
|
|
- u8 - register number
|
|
- u16 - register width (number of bytes to read)
|
|
|
|
*Response:*
|
|
- u8[] - received bytes
|
|
|
|
### WRITE_REG (0x03)
|
|
|
|
Write a register; first writes the register number, then (in the same transaction)
|
|
the data. If the device supports it, can write multiple registers at once.
|
|
|
|
*Request:*
|
|
- u16 - address
|
|
- u8 - register number
|
|
- u8[] - bytes to write
|
|
|
|
## Events
|
|
|
|
*No events defined for this unit type.*
|
|
|