Atmel AT89STK-11 Hardware User Guide

AT89STK-11 Starter Kit

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Hardware User Guide

Table of Contents

Section 1

Introduction ........................................................................................... 1-1

1.1 Features ....................................................................................................1-1

1.2 Supported Devices....................................................................................1-2

Section 2

Hardware Description ........................................................................... 2-4

2.1 Board Overview.........................................................................................2-4

2.2 Block Diagram...........................................................................................2-5

2.3 Power Supply ............................................................................................2-5

2.4 Reset.........................................................................................................2-6

2.5 Features ....................................................................................................2-7

2.6 Interfaces ..................................................................................................2-7

2.7 Board Settings ..........................................................................................2-9

Section 3

ISP Programming ............................................................................... 3-12

3.1 Manual ISP Mode ...................................................................................3-12

3.2 Auto ISP Mode ........................................................................................3-12

3.3 FLIP Software .........................................................................................3-13

3.4 Batchisp Software ...................................................................................3-13

Section 4

Appendix A: Board Layout .................................................................. 4-14

Appendix B: Bill of Materials ............................................................... 4-15

4.1 Bill of Materials Table..............................................................................4-15

Appendix C: Board Schematics .......................................................... 4-17

Appendix D: References/Acronyms .................................................... 4-22

4.2 References..............................................................................................4-22

4.3 Acronyms ................................................................................................4-22

AT89STK-11 Hardware User Guide 1

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Section 1 Introduction

This document describes the AT89STK-11 board dedicated to the standard C51 microcontrollers with in-system programming.

All of the microcontroller I/Os are made available in an expansion area with prototyping facilities.

1.1 Features

 Stand-alone Board

 In-System Programmable (ISP) including ‘Auto ISP’ feature

 On-board Voltage Regulator

 Microcontroler on its sockets

– PLCC44-pin package

 On-board 3V or 5V power supply circuitry

– from an external power connector

– from an external battery

 On-board RESET

 Leds : Power, ALE, RS232 Rx and Tx

 External MCU clock connector

 External PCA clock connector

 TWI, SPI and RS232 connectors

 INT0 & INT1 Push-button

 Expansion area with prototyping facilities

 Commercial Temperature Range: 0 to +70°C Operating Temperature

 Dimension: 95 mm x 120 mm

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Introduction

1.2 Supported Devices

 AT89C51RE2  AT89C51RB2  AT89C51RC2/IC2  AT89C51RD2/ID2/ED2

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Section 2 Hardware Description

2.1 Board Overview

Figure 2-1 shows the AT89STK-11 board.

Figure 2-1. AT89STK-11

This photo is not contractual and may be modified without notification by Atmel.

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Hardware Description

Power Supply

Full UART

External

Power

PC Host

C51

EA RST ISP

Expansion

TWI

SPI

INT0

Leds: PWR ALE

16MHz Quartz

PLCC44

3V or 5V

INT1

Area

User LEDs User Push Buttons

2.2 Block Diagram

Figure 2-2. Block Diagram of AT89STK-11

Figure 2-2 shows the functional block diagram of the AT89STK-11, with the I/O usage.

2.3 Power Supply

2.3.1 Power Supply Sources

2.3.1.1 JACK PWR Connector

The on-board power supply circuitry allows various power supply configurations. This gives the user the capability to power the devices in the 3V and in the 5V voltage range.

The power supply source can come from two different and exclusive sources:

 either from the JACK PWR connector

 either from the 2-point sip EXT connector.

The Jack power connector implemented on board is a female Jack connector with internal 2.1mm conductor. It requires a male JACK outlet with 2.1mm capability.

No specific polarization is mandatory as on-board diode rectifier gives a protection against inadvertent polarization invertion.

When using the JACK power supply, the board is powered with a 5V voltage.

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Hardware Description

Figure 2-3. Male JACK Outlet and Wires

Note: Do not mount more than one power supply source on AT89STK-11 Board.

Note: There is a diode voltage level between the negative output of the power supply

and the “GND”. This could introduce some voltage gap during measurement and instrumentation.

2.3.1.2 External EXT connector

The battery power connector implemented on board is a male two point SIP connector. It requires an external power cable with a female 2 points connector.

When powered though this interface, polarization is mandatory as no protection is given on board.

The EXT power supply circuitry support input supply from 2.7V up to 5.5V DC.

Figure 2-4. EXT PWR Female Connector / Cable

Note: Do not mount more than one power supply source on board.

Note: Keep SP1 closed when using the EXT input

2.4 Reset

To be compatible with Atmel microcontrollers which have (or not) its on-chip RESET circuitry (c.f.microcontroller datasheet), the board provides a RESET signal witch can come from 2 different sources:

2.4.1 Power-on RESET The on-board RC network acts as power-on RESET.

2.4.2 RESET Push Button By pressing the RESET push button on the board, a warm RESET of the microcontroller

is performed.

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