Datasheet

6
AVR068
2591C-AVR-06/06
5.1.4 CMD_OSCCAL
This command performs a calibration sequence as described in application note
AVR053.
Table 5-9. Command format
Field Size Values Description
Command ID 1 byte CMD_OSCCAL Command id
Table 5-10. Answer format
Field Size Values Description
Answer ID 1 byte CMD_OSCCAL Answer id
Status 1 byte
STATUS_CMD_OK or
STATUS_CMD_FAILED
A status value indicating
success or failure.
5.1.5 CMD_LOAD_ADDRESS
This command will load an address into the STK500. The next Program Flash, Read
Flash, Program EEPROM or Read EEPROM command will operate from the address
set with this command. The command is used in all programming modes. All the
abovementioned commands will increment an internal address counter, so this
command needs only to be sent once.
Table 5-11. Command format
Field Size Values Description
Command ID 1 byte CMD_LOAD_ADDRESS Command id
Address 4 bytes
The address, four bytes,
MSB first
For word-addressed memories (program flash), the Address parameter is the word
address.
If bit 31 is set, this indicates that the following read/write operation will be performed
on a memory that is larger than 64KBytes. This is an indication to STK500 that a load
extended address must be executed. See datasheet for devices with memories larger
than 64KBytes.
Table 5-12. Answer format if command succeeded
Field Size Values Description
Answer ID 1 byte CMD_LOAD_ADDRESS Answer id
Status 1 byte STATUS_CMD_OK
A status value indicating
success