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47 lines
890 B
47 lines
890 B
7 years ago
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# I2C master
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## Commands
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### WRITE (0x00)
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*Request:*
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- u16 - slave address
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- u8[] - bytes to write
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### READ (0x01)
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*Request:*
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- u16 - slave address
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- u16 - number of bytes to read
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*Response:*
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- u8[] - received bytes
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### READ_REG (0x02)
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Read a register value. First writes the register number, then reads a number of bytes.
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For devices implementing auto-increment, the register width field can be used to read
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multiple registers at once.
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*Request:*
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- u16 - address
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- u8 - register number
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- u16 - register width (number of bytes to read)
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*Response:*
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- u8[] - received bytes
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### WRITE_REG (0x03)
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Write a register; first writes the register number, then (in the same transaction)
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the data. If the device supports it, can write multiple registers at once.
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*Request:*
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- u16 - address
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- u8 - register number
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- u8[] - bytes to write
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## Events
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*No events defined for this unit type.*
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