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Hardware Description

AVR STK500 User Guide

3-13

1925C–AVR–3/03

Figure 3-18. Jumper Settings for High-voltage Programming

Hardware setup for parallel High-voltage Programming:

Switch power off.

Place the device to program in its socket according to Table 3-3 on page 3-11.

Connect the headers PROGDATA and PORTB with the 10-wire cable.

Connect the headers PROGCTRL and PORTD with the 10-wire cable.

Mount jumper OSCSEL on pins 1 and 2 to select software-controlled clock.

Mount jumper XTAL1 to route the oscillator signal to the device.

Mount jumpers VTARGET and RESET.

When programming AT90S2333, AT90S4433, or ATmega8, mount both PJUMP

jumpers. The 2-wire cables can be used instead of jumpers.

When programming ATmega16, ATmega163, ATmega161, ATmega128, or

ATmega323, mount the BSEL2 jumper. When programming ATmega8, connect

BSEL2 terminal to PC2. A 2-wire cable can be used instead of jumpers.

10. Disconnect target system.

11. Switch power on.

12. Ensure that VTARGET is between 4.5V and 5.5V before programming. See Sec-

tion 5.3.5.1.

For a complete description of jumper settings, see Section 3.8, “Jumper Settings”.

Note:

Remove the hardware setup for High-voltage Programming before starting a

debug session.

Jumpers

must be

Mounted

Device-

dependent

Jumpers

(See Below)

VTARGET

AREF

RESET

XTAL1

OSCSEL

BSEL2

PJUMP

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