Atmel STK526 Manual de instalación

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Datasheet of ATSTK526 - KIT STARTER FOR AT90USB82/162

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Distributor of Atmel: Excellent Integrated System Limited

Datasheet of ATSTK526 - KIT STARTER FOR AT90USB82/162

STK526 Rev. B

..............................................................................................

Hardware User Guide

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Distributor of Atmel: Excellent Integrated System Limited

Datasheet of ATSTK526 - KIT STARTER FOR AT90USB82/162

STK526 rev. B Hardware User Guide 1

7709B–AVR–07/08

Section 1

Introduction...........................................................................................1-2

1.1 Overview...................................................................................................1-2

1.2 STK526 - AT90USB82/162 Starter Kit Features.......................................1-3

Section 2

Using the STK526.................................................................................2-5

2.1 Overview...................................................................................................2-5

2.2 Power Supply............................................................................................2-6

2.3 RESET....................................................................................................2-10

2.4 AT90USB82/162 AVR Microcontroller....................................................2-11

2.5 Serial Links .............................................................................................2-11

2.6 On-board Resources...............................................................................2-15

2.7 STK500 Resources.................................................................................2-17

2.8 In-System Programming .........................................................................2-18

2.9 Debugging...............................................................................................2-22

2.10 Test Points..............................................................................................2-23

2.11 Configuration Pads .................................................................................2-24

2.12 Solder Pads ............................................................................................2-25

Section 3

Troubleshooting Guide .......................................................................3-26

Section 4

Technical Specifications .....................................................................4-28

Section 5

Technical Support...............................................................................5-29

Section 6

Complete Schematics.........................................................................6-30

6.1 Document Revision History.....................................................................6-38

6.2 7709B......................................................................................................6-38

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Distributor of Atmel: Excellent Integrated System Limited

Datasheet of ATSTK526 - KIT STARTER FOR AT90USB82/162

STK526 rev. B Hardware User Guide 1-2

7709B–AVR–07/08

Section 1

Introduction

Congratulation for acquiring the AVR® STK526 - AT90USB82/162 Starter Kit. This kit is

designed to give designers a quick start to develop code on the AT90USB82/162 and

for prototyping and testing of new designs.

1.1 Overview

This document describes the STK526 dedicated to the AT90USB82/162 AVR

microcontroller. This board is designed to allow an easy evaluation of the product using

demonstration software. This document applies to the revision B of the board.

To complement the evaluation and enable additional development capability, the

STK526 can be plugged into the Atmel STK500 Starter Kit Board in order to use the

AT90USB82/162 with advanced features such as variable VCC, variable XTAL, Parallel

Programming, and supports all AVR development tools.

It can also receive extension modules that Atmel or 3rd parties may release in future or

that customers can develop for their projects.

To increase its demonstrative capabilities, this stand alone board has several on-board

resources : USB, RS232, joystick, data-flash, LEDs.

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Distributor of Atmel: Excellent Integrated System Limited

Datasheet of ATSTK526 - KIT STARTER FOR AT90USB82/162

Introduction

STK526 rev. B Hardware User Guide 1-3

7709B–AVR–07/08

Figure 1-1 . STK526 Board

1.2 STK526 - AT90USB82/162 Starter Kit Features

The STK526 rev. B provides the following features:

AT90USB82/162 TQFP device (2.7V<Vcc<5.5V)

AVR Studio® software interface (1)

USB software interface for Device Firmware Upgrade (DFU bootloader) (2)

STK500 compatible (supports Parallel High-Voltage Programming)

Power supply flagged by “POWER-ON” LED:

– from an external power connector, with a 3.3V or 5V regulation

– from the USB interface (USB device bus powered application)

– from STK500

– using or not the 3.3V on-chip regulator of AT90USB82/162

ISP connector :

– for on-chip ISP

– for on-chip debugging using JTAG ICE and debugWire protocol

Serial interfaces:

– 1 USB full speed device interface

– RS-232C ports with RTS/CTS handshake lines

On-board resources:

– 4-ways + 1-select joystick

–4LEDs

– serial 8Mo dataflash memory

On-board RESET button

On-board HWB button for force bootloader execution at reset.

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Distributor of Atmel: Excellent Integrated System Limited

Datasheet of ATSTK526 - KIT STARTER FOR AT90USB82/162

Introduction

1-4 STK526 rev. B Hardware User Guide

7709B–AVR–07/08

System clock:

– external clock from STK500 expand connectors

– 8 MHz crystal

Numerous access points for test

Notes: 1. The STK526 is supported by AVR Studio®, version 4.12SP2 or higher. For up-to-date

information on this and other AVR tool products, please consult our web site. The lat-

est version of AVR Studio®, AVR tools and this User Guide can be found in the AVR

section of the Atmel web site, http://www.atmel.com.

2. ATMEL Flip®, In System Programming Version 3 or Higher shall be used for Device

Firmware Upgrade. Please consult Atmel web site to retrieve the latest version of Flip

and the DFU bootloader Hex file if needed.

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Distributor of Atmel: Excellent Integrated System Limited

Datasheet of ATSTK526 - KIT STARTER FOR AT90USB82/162

STK526 rev. B Hardware User Guide 2-5

7709B–AVR–07/08

Section 2

Using the STK526

This chapter describes the board and all its features.

2.1 Overview

Figure 2-1 . STK526 Overview

USB RS232

SPI /

debugWire

Power

Crystal

Joystick

Reset

Hardware

Boot

LEDs

Dataflash

Vcc

Source

3V3 Reg

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Distributor of Atmel: Excellent Integrated System Limited

Datasheet of ATSTK526 - KIT STARTER FOR AT90USB82/162

Using the STK526

2-6 STK526 rev. B Hardware User Guide

7709B–AVR–07/08

EXT (JACK)

VBUS

STK500

3V3

AT90USBxx2

Vsource

(VCC SOURCE) Internal

3V3 100mA

Regulator

(1) (2)

UVcc

Vcc

Ucap

NOREG INTREG

REG5V

REG3V3

VBUS

STK

(3V3 REG)

POWER-ON

1µF

2.2 Power Supply

The on-board power supply circuitry allows different power supply configurations.

Because the AT90USB82/162 contains an internal 3V3 regulator that can be used to

power an external circuitry, several power configurations are handled by the STK526.

The power path is represented by the figure below :

Figure 2-2 . STK526 Power Configuration

First, the board allows to drain power from three external sources, leading to four

different solutions. The selected voltage is applied to the regulator input of the

AT90USB82/162. Then the user can choose to power the MCU I/O either directly with

the primary power source (external 5V/3V3), or from the internal regulator itself (MCU

auto-power).

2.2.1 Power Supply Sources

The power supply can come from three different(1) sources:

USB connector,

JACK PWR connector (J5, See Figure 2-3),

STK500

USB powered: When used as a USB device bus powered application, the STK526 can be powered via

the USB VBUS power supply line.

JACK PWR connector: – Use the JACK outlet provided with the kit (See Figure 2-4)

– Input supply from 9 up to 15V (2) DC,

– No specific polarization (3) is required.

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Distributor of Atmel: Excellent Integrated System Limited

Datasheet of ATSTK526 - KIT STARTER FOR AT90USB82/162

Using the STK526

STK526 rev. B Hardware User Guide 2-7

7709B–AVR–07/08

Figure 2-3 . JACK PWR Connector (J6)

Figure 2-4 . Male JACK Outlet and Wires

STK500 Powered: (c.f. “STK500 Resources” on page 17).

Notes: 1. Caution: Do not set more than one power supply source on STK526.

2. 15V is the maximum level limitation of an unidirectional transit diode.

3. There is a diode (bridge) voltage drop between the negative output of the power

supply and the STK526 “GND”. This could introduce some gap of voltage during

measurement and instrumentation.

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Distributor of Atmel: Excellent Integrated System Limited

Datasheet of ATSTK526 - KIT STARTER FOR AT90USB82/162

Using the STK526

2-8 STK526 rev. B Hardware User Guide

7709B–AVR–07/08

2.2.2 Power Source Setting

Table 2-1 . Power Supply(1) Setting

Notes: 1. Caution: The STK500 has its own “ON/OFF” switch

Vcc Source

Jumper position VCC power

supply value Comments View

VBUS VBUS

(4,8V to 5.2V)

This is the default configuration.

This should be used for a typical USB

device “bus powered” application.

In this mode, the STK526 is powered

directly from the USB bus, and no

other external power supply is

required.

REG 5V 5V

This configuration can be used for a

USB “self powered” device

application”.

To use this configuration an external

power supply must be connected to

J5 connector. The on-board 5V

regulator is used.

REG 3V3 3.3V

This configuration allows the STK526

to be used in a 3V range application.

To use this configuration an external

power supply must be connected to

J5 connector. The on-board 3V3

regulator is used.

STK & REG 5V Depends on

STK500 VTG

setting

This configuration allows the STK526

to be used with an STK500 board.

In this mode, the STK526 power

supply is generated and configured

according to the “VTG” parameter of

the STK500 (1).

Caution : NO external power supply

must be connected to STK526 to

avoid conflict with STK500 power

supply.

VCC

Source

Reg 5

Reg 3.3

VBUS 5

STK

VCC

Source

Reg 5

Reg 3.3

VBUS 5

STK

VCC

Source

Reg 5

Reg 3.3

VBUS 5

STK

VCC

Source

Reg 5

Reg 3.3

VBUS 5

STK

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