ATAVRISP2 datasheet(12/24 Pages) ATMEL

12 / 24 page

AVR069

8015B-AVR-02/06

3.3 Return Values

This section describes all possible return values and their meaning in detail.

3.3.1 Success

Table 3-33. Success

Value

Meaning

STATUS_CMD_OK

Command executed OK

3.3.2 Warnings

All warnings have MSB set to 1 and MSB-1 set to 0.

Table 3-34. Success

Value

Meaning

STATUS_CMD_TOUT

Command timed out

STATUS_RDY_BSY_TOUT

Sampling of the RDY/nBSY pin timed out

STATUS_SET_PARAM_MISSING

The ‘Set Device Parameters’ have not been

executed in advance of this command

3.3.3 Errors

All errors have MSB and MSB-1 set to 1.

Table 3-35. Success

Value

Meaning

STATUS_CMD_FAILED

Command failed

STATUS_CMD_UNKNOWN

Unknown command

3.4 Parameters

The following parameters can be read and/or written by the CMD_GET_PARAM and

CMD_SET_PARAM commands.

Table 3-36. Success

Value

Meaning

R/W

PARAM_BUILD_NUMBER_LOW

Firmware build number, high byte

PARAM_BUILD_NUMBER_HIGH

Firmware build number, low byte

PARAM_HW_VER

Hardware version

PARAM_SW_MAJOR

Firmware version number, major byte

PARAM_SW_MINOR

Firmware version number, minor byte

PARAM_VTARGET

Target Voltage

PARAM_SCK_DURATION

ISP SCK duration

R/W

PARAM_RESET_POLARITY

Active low or active high RESET handling

PARAM_STATUS_TGT_CONN

Status of target connection

PARAM_DISCHARGEDELAY

Delay with higher resistance of reset line

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