Atmel ATSTK500 500 Starter kit and development system. ATSTK500 ATSTK500 Hoja De Datos

Rev. 1925C–AVR–3/03

Figure 3-1.  STK500 Components

The STK500 starter kit includes 8 yellow LEDs and 8 push-button switches. The LEDs
and switches are connected to debug headers that are separated from the rest of the
board. They can be connected to the AVR devices with the supplied 10-wire cable to the
pin header of the AVR I/O ports. Figure 3-4 shows how the LEDs and switches can be
connected to the I/O port headers. The cables should be connected directly from the
port header to the LED or switch header. The cable should not be twisted. A red wire on
the cable indicates pin 1. Confirm that this is connected to pin 1 on each of the headers.
Figure 3-2 shows how the LED control is implemented. This solution will give the same
amount of light from the LED for all target voltages from 1.8V to 6.0V.

Power Switch

Power Connector

Power LED

Parallel Programming
Headers

RS-232 Port 
for Programming

Master MCU

Status LED

RS-232 Port 
for Communication

Options Setting
Jumpers

Sockets for
Target AVR

Headers
for I/O Ports

Switches

Header for
Switches

RS-232 Interface
Header

DataFlash Interface
Header

LEDs

Header for 
Expansion Boards

Header for LEDs

10-pin ISP Header
(for External Target Only)

6-pin ISP Header

Target ISP Headers

Program Button

Socket for
Crystal

Target Reset
Push Button

Header for 
Expansion Boards