ATAVRISP2 Datasheet ATAVRISP2 | P4-P6

AVR069

8015B-AVR-02/06

Field Size Value Description

Status 1 byte STATUS_CMD_FAILED

A status value indicating that

the operation failed.

The only reason for the operation to fail is that an illegal parameter is requested.

3.1.4 CMD_OSCCAL

This command performs a calibration sequence as described in application note

AVR053.

Table 3-8

. Command format

Field Size Value Description

Command ID 1 byte CMD_OSCCAL Command id

Table 3-9

. Answer format

Field Size Value Description

Answer ID 1 byte CMD_OSCCAL Answer id

Status 1 byte

STATUS_CMD_OK or

STATUS_CMD_FAILED

A status value indicating the

result of the operation

3.1.5 CMD_LOAD_ADDRESS

This command will load an address into the AVRISP mkII. 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 3-10

. Command format

Field Size Value 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 AVRISP mkII that a

load extended address must be executed. See datasheet for devices with memories

larger than 64KBytes.

Table 3-11

. Answer format.

Field Size Value Description

Answer ID 1 byte CMD_LOAD_ADDRESS Answer id

Status 1 byte STATUS_CMD_OK

This command will always

return STATUS_CMD_OK

AVR069

8015B-AVR-02/06

3.1.6 CMD_FIRMWARE_UPGRADE

When the host is trying to connect to the programmer, it checks the firmware version.

A firmware upgrade is initiated if a newer version is available on the PC.

The AVRISP mkII can “reboot” into upgrade mode by using this command.

Table 3-12

. Command format

Field Size Value Description

Command ID 1 byte CMD_FIRMWARE_UPGRADE Command id

Parameter ID 9 bytes

”fwupgrade”

String to enable upgrade

mode (not null terminated)

Table 3-13

. Answer format

Field Size Value Description

Answer ID 1 byte CMD_FIRMWARE_UPGRADE Answer id

Status 1 byte

STATUS_CMD_OK or

STATUS_CMD_FAILED

A status value indicating

the result of the operation

If the status returned is STATUS_CMD_OK, the AVRISP mkII will disconnect and

enter upgrade mode.

3.1.7 CMD_RESET_PROTECTION

This command resets the short circuit protection system after a short circuit state has

been returned by the PARAM_STATUS_TGT_CONN.

Table 3-14

. Command format

Field Size Value Description

Command ID 1 byte CMD_RESET_PROTECTION Command id

Table 3-15

. Answer format

Field Size Value Description

Answer ID 1 byte CMD_RESET_PROTECTION Answer id

Status 1 byte STATUS_CMD_OK

This command will always

return STATUS_CMD_OK

3.2 ISP Programming Commands

These commands handles FLASH, EEPROM, fuse bytes, lock bits, signature and

oscillator calibration programming in ISP mode.

3.2.1 CMD_ENTER_PROGMODE_ISP

This command will make the target device enter programming mode.

XML path:

/AVRPART/ICE_SETTINGS/STK500_2/IspEnterProgMode/

Table 3-16

. Command form

Field Size Value Description

AVR069

8015B-AVR-02/06

Field Size Value Description

Command ID 1 byte

CMD_ENTER_PROG

MODE_ISP

Command id

timeout 1 byte XML: timeout Command time-out (in ms)

stabDelay 1 byte XML: stabDelay

Delay (in ms) used for pin

stabilization

cmdexeDelay 1 byte XML: cmdexeDelay

Delay (in ms) in connection with the

EnterProgMode command execution

synchLoops 1 byte XML: synchLoops Number of synchronization loops

byteDelay 1 byte XML: byteDelay

Delay (in ms) between each byte in

the EnterProgMode command.

pollValue

(1)

1 byte XML: pollValue Poll value:

0x53 for AVR, 0x69 for AT89xx

pollIndex 1 byte XML: pollIndex Start address, received byte:

0 = no polling, 3 = AVR, 4 = AT89xx

cmd1 1 byte Command Byte # 1 to be transmitted

cmd2 1 byte Command Byte # 2 to be transmitted

cmd3 1 byte Command Byte # 3 to be transmitted

cmd4 1 byte Command Byte # 4 to be transmitted

Note: 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)

Table 3-17

. Answer format

Field Size Value Description

Answer ID 1 byte

CMD_ENTER_PROG_M

ODE_ISP

Answer id

Status 1 byte

STATUS_CMD_TOUT,

STATUS_CMD_OK or

STATUS_CMD_FAILED

A status value indicating the result

of the operation

3.2.2 CMD_LEAVE_PROGMODE_ISP

This command will make AVRISP mkII leave programming mode. The device will be

put into normal operating mode.

XML path: /AVRPART/ICE_SETTINGS/AVRISP mkII_2/IspLeaveProgMode/

Table 3-18

. Command format

Field Size Value Description

Command ID 1 byte CMD_LEAVE_PROGMODE_ISP Command id

preDelay 1 byte XML: preDelay Pre-delay (in ms)

postDelay 1 byte XML: postDelay Post-delay (in ms)

Table 3-19

. Answer format

Field Size Value Description

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

ATAVRISP2

Mfr. #:

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