4.1 CMD_ENTER_PROGMODE_ISP
This command will make the target device enter programming mode.
XML path: /AVRPART/ICE_SETTINGS/STK600/IspEnterProgMode/
Table 4-1. Command format.
Field
Command ID
Size
1 byte
Values
CMD_ENTER_
Description
Command id
PROGMODE_ISP
timeout
stabDelay
cmdexeDelay
1 byte
1 byte
1 byte
XML: timeout
XML: stabDelay
XML: cmdexeDelay
Command time-out (in ms)
Delay (in ms) used for pin stabilization
Delay (in ms) in connection with the
EnterProgMode command execution
synchLoops
byteDelay
1 byte
1 byte
XML: synchLoops
XML: byteDelay
Number of synchronization loops
Delay (in ms) between each byte in the
EnterProgMode command.
pollValue (1)
1 byte
XML: pollValue
Poll value:
0x53 for AVR ?
pollIndex
1 byte
XML: pollIndex
Start address, received byte:
0 = no polling, 3 = AVR
cmd3
cmd4
cmd1 (2)
cmd2 (2)
(2)
(2)
1 byte
1 byte
1 byte
1 byte
Command Byte # 1 to be transmitted
Command Byte # 2 to be transmitted
Command Byte # 3 to be transmitted
Command Byte # 4 to be transmitted
Notes:
1. The pollValue parameter indicates after which of the transmitted bytes on the SPI interface to store the return byte,
as the SPI interface is implemented as a ring buffer (one byte out, one byte in)
2. cmd1, cmd2, cmd3 and cmd4 are the instruction bytes found in the SPI Serial Programming Instruction Set found in
the device datasheet.
Table 4-2. Answer format.
Field
Answer ID
Status
Size
1 byte
1 byte
Values
CMD_SET_PARAMETER
STATUS_CMD_TOUT,
STATUS_CMD_OK or
Description
Answer id
A status value indicating the result of the
operation
STATUS_CMD_FAILED
4.2 CMD_LEAVE_PROGMODE_ISP
This command will make STK600 leave programming mode. The device will be put
into normal operating mode.
XML path: /AVRPART/ICE_SETTINGS/STK600_2/IspLeaveProgMode/
8
AVR079
8133A-AVR-04/08
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