Datasheet

AVR079
3
8133A-AVR-04/08
Table 3-1. Command format.
Field Size Values Description
Command ID 1 byte CMD_SIGN_ON Command id
Table 3-2. Answer format.
Field Size Values Description
Answer ID 1 byte CMD_SIGN_ON Answer id
Status 1 byte STATUS_CMD_OK
Signature length 1 byte 6 Length of signature string
8 bytes “STK600” The signature string (not null-terminated)
3.2 CMD_SET_PARAMETER
The host can set a multitude of parameters in the STK600. See the 11 Parameters for
a description of each parameter.
Table 3-3. Command format for one byte values.
Field Size Values Description
Command ID 1 byte CMD_SET_PARAMETER Command id
Parameter ID 1 byte Which parameter to set
Value 1 byte Parameter new value
Table 3-4. Command format for two byte values.
Field Size Values Description
Command ID 1 byte CMD_SET_PARAMETER Command id
Parameter ID 1 byte Which parameter to set
Value 1 byte Parameter new value high byte
Value 1 byte Parameter new value low byte
Table 3-5. Command format for two byte values.
Field Size Values Description
Answer ID 1 byte CMD_SET_PARAMETER Answer id
Status 1 byte
STATUS_CMD_OK or
STATUS_CMD_FAILED
A status value indicating the result of the
operation
3.3 CMD_GET_PARAMETER
The host can also read different parameters from the STK600.
Table 3-6. Command format.
Field Size Values Description
Command ID 1 byte CMD_GET_PARAMETER Command id
Parameter ID 1 byte Which parameter to get