ATAVRISP2 Datasheet ATAVRISP2 | P7-P9

AVR069

8015B-AVR-02/06

Field Size Value Description

Answer ID 1 byte CMD_LEAVE_PROGMODE_ISP Answer id

Status 1 byte STATUS_CMD_OK

This command will always

return STATUS_CMD_OK

3.2.3 CMD_CHIP_ERASE_ISP

This command will perform a chip erase on the target device.

XML path: /AVRPART/ICE_SETTINGS/STK500_2/IspChipErase/

Table 3-20

. Command form

Field Size Value Description

Command ID 1 byte CMD_CHIP_ERASE_ISP Command id

eraseDelay 1 byte XML: eraseDelay

Delay (in ms) to ensure that the

erase of the device is finished

pollMethod 1 byte XML: pollMethod

Poll method, 0 = use delay1=

use RDY/BSY command

cmd1 1 byte Chip erase command byte #1

cmd2 1 byte Chip erase command byte #2

cmd3 1 byte Chip erase command byte #3

cmd4 1 byte Chip erase command byte #4

Table 3-21

. Answer format

Field Size Value Description

Answer ID 1 byte CMD_CHIP_ERASE_ISP Answer id

Status 1 byte

STATUS_CMD_OK or

STATUS_CMD_TOUT

A status value indicating the

result of the operation

3.2.4 CMD_PROGRAM_FLASH_ISP

This command will program data into the FLASH memory of the target device if it

succeeds.

XML path:

/AVRPART/ICE_SETTINGS/STK500_2/IspProgramFlash/

Table 3-22

. Command form

Field Size Value Description

Command ID 1 byte

CMD_PROGRAM_FLASH

_ISP

Command id

NumBytes 2 byte

Total number of bytes to

program, MSB first

mode 1 byte XML: mode * Mode byte*

delay 1 byte XML: delay

Delay, used for different types

of programming termination,

according to mode byte

cmd1 1 byte

Command 1 (Load Page, Write

Program Memory)

AVR069

8015B-AVR-02/06

Field Size Value Description

cmd2 1 byte

Command 2 (Write Program

Memory Page)

cmd3 1 byte

Command 3 (Read Program

Memory)

poll1 1 byte XML: pollVal1 Poll Value #1

poll2 1 byte XML: pollVal2

Poll Value #2 (not used for flash

programming)

Data N bytes N data

*Mode byte

The mode parameter is essential for how this command works. The bits in the mode

byte have the following meanings:

Bit # Description Mode

0 Word/Page Mode (0 = word, 1 = page)

1 Timed delay

2 Value polling

3 RDY/BSY polling

Word Mode

4 Timed delay

5 Value polling

6 RDY/BSY polling

7 Write page

Page Mode

The Word/Page Mode bit selects if the device supports page programming or not.

The command bytes are different for word and page mode. In word mode, the ISP

commands Write Program Memory and Read Program Memory are used. In page

mode, Load Page, Write Program Memory Page and Read Program Memory are

used. The read instruction is used if Value Polling is specified in the mode bit. The

Low/High byte selection bit (3

bit in the Load Page, Write Program Memory

commands) is handled by AVRISP mkII, so leave this bit cleared.

According to the mode, different termination methods are selected – Timed delay,

Value polling or RDY/BSY polling.

For paged operation, the Write page bit decides if a Write Program Memory Page

command should be issued after the data has been loaded into the page buffer. For

devices with page size bigger than what can be transferred to AVRISP mkII in one

command, several CMD_PROGRAM_FLASH_ISP commands must be issued. In

such a case, only the last command should have the Write Page mode bit set.

NOTE: Only bit 0-6 are set in the XML file, because bit 7 is not constant and must be controlled

by the PC software.

When value polling is used to determine when a programming operation is complete,

poll1 must be supplied. This value indicates which value will be read from the device

until the programmed value is read. This indicates end of programming. poll2 is used

only for EEPROM programming.

AVR069

8015B-AVR-02/06

Table 3-23. Answer format

Field Size Value Description

Answer ID 1 byte CMD_PROGRAM_FLASH_ISP Answer id

Status 1 byte

STATUS_CMD_OK,

STATUS_CMD_TOUT or

STATUS_RDY_BSY_TOUT

A status value indicating the

result of the operation

3.2.5 CMD_READ_FLASH_ISP

This command will read data from the FLASH memory of the target device if it

succeeds.

XML path:

/AVRPART/ICE_SETTINGS/ STK500_2/IspReadFlash/

Table 3-24

. Command format

Field Size Value Description

Command ID 1 byte CMD_READ_FLASH_ISP Command id

NumBytes 2 bytes XML: blockSize

Total number of bytes to read,

MSB first

cmd1 1 byte

Read Program Memory

command byte #1. Low/High

byte selection bit (3rd bit) is

handled in the FIRMWARE.

Table 3-25

. Answer format if the command is executed

Field Size Value Description

ANSWER ID 1 byte CMD_READ_FLASH_ISP Answer id

STATUS1 1 byte STATUS_CMD_OK

Indicates success. Will always

read OK

DATA N bytes The data read from the device

STATUS2 1 byte STATUS_CMD_OK

A status value indicating the

result of the operation. Will

always read OK

Table 3-26

. Answer format if the command was not executed

Field Size Value Description

ANSWER ID 1 byte CMD_READ_FLASH_ISP Answer id

STATUS 1 byte STATUS_CMD_FAILED Indicates failure

3.2.6 CMD_PROGRAM_EEPROM_ISP

See the CMD_PROGRAM_FLASH_ISP command.

3.2.7 CMD_READ_EEPROM_ISP

See the CMD_READ_FLASH_ISP command.

3.2.8 CMD_PROGRAM_FUSE_ISP

This command programs the fuses of the target device.

P1-P3 P4-P6 P7-P9 P10-P12 P13-P15 P16-P18 P19-P21 P22-P24

ATAVRISP2

Mfr. #:

Buy ATAVRISP2

Manufacturer:

Microchip Technology / Atmel

Description:

Programmers - Processor Based AVR INSystem mkII Programming Kit

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