AVR079
Table 7-5. Answer format.
Field
Answer id
Status
Size
1 byte
1 byte
Values
CMD_JTAG_AVR
STATUS_CMD_OK
Description
Answer id
STATUS_CMD_FAILED
Data
n bytes
Payload if STATUS_CMD_OK
7.1.2 CMND_WRITE_MEMORY
This commands writes a specified amount of bytes to the chosen target MCU
memory. The target MCU must be in programming mode
(CMND_ENTER_PROGMODE) before issuing this command.
Table 7-6. Command format.
Field
AVR8JTAG id
Message ID
Size
1 byte
1 byte
Values
CMD_JTAG_AVR
CMND_WRITE_MEMORY
Description
Command id
(0x04)
Memory type
Byte count
Start address
Data
1 byte
4 bytes
4 bytes
n bytes
JTAGC_MemType_xxxx
Lsb first
Lsb first
data
See table above
Number of bytes to write
Start memory address
Byte count bytes of data
Table 7-7. Answer format.
Field
Answer id
Status
Size
1 byte
1 byte
Values
CMD_JTAG_AVR
STATUS_CMD_OK
Description
Answer id
STATUS_CMD_TOUT
STATUS_CMD_FAILED
7.1.3 CMND_RESET
This command will place the RESET instruction into the JTAG instruction register.
The target MCU must be in programming mode (CMND_ENTER_PROGMODE)
before issuing this command.
Table 7-8. Command format.
Field
AVR8JTAG id
Message ID
Size
1 byte
1 byte
Values
CMD_JTAG_AVR
CMND_RESET (0x0B)
Description
Command id
Table 7-9. Answer format.
Field
Answer id
Status
Size
1 byte
1 byte
Values
CMD_JTAG_AVR
STATUS_CMD_OK
Description
Answer id
27
8133A-AVR-04/08
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