Atmel STK520 User manual
STK520
..............................................................................................
User Guide
STK520 User Guide 3
7510A–AVR–08/05
Table of Contents
Section 1
Introduction............................................................................................1-2
Section 2
Using the STK520 Top Module.............................................................2-4
2.1 Connecting the STK520 to the STK500 Starter Kit ..................................2-4
2.1.1 Placing an AT90PWM3 on the STK520.............................................2-4
2.1.2 Placing an AT90PWM2 on the STK520.............................................2-5
2.2 Programming the AVR..............................................................................2-7
2.2.1 In-System Programming .................................................................... 2-7
2.2.2 High-voltage Programming................................................................2-8
2.3 JTAGICE mkII Connector.........................................................................2-9
2.4 STK520 Jumpers, Leds & Test Points....................................................2-11
2.5 DALI Interface.........................................................................................2-12
2.6 Potentiometer.........................................................................................2-13
Section 3
Troubleshooting Guide........................................................................3-14
Section 4
Technical Specifications......................................................................4-16
Section 5
Technical Support ...............................................................................5-17
Section 6
Complete Schematics .........................................................................6-20
Introduction
STK520 User Guide 1-2
7510A–AVR–08/05
Section 1
Introduction
The STK520 board is a top module designed to add AT90PWM family support to the
STK500 development board from Atmel Corporation.
The STK520 includes connectors and hardware allowing full utilization of the new fea-
tures of the AT90PWM, while the Zero Insertion Force (ZIF) socket allows easy to use of
SO24 & SO32 packages for prototyping.
This user guide acts as a general getting started guide as well as a complete technical
reference for advanced users.
Notice that in this guide, the word AVR is used to refer to the target component
(AT90PWM2, AT90PWM3...)
Figure 1-1. STK520 Top Module for STK500
Introduction
1-3 STK520 User Guide
7510A–AVR–08/05
1.1 Features STK520 is a New Member of the Successful STK500 Starter Kit Family.
Supports the AT90PWM2 & AT90PWM3.
DALI Hardware Interface.
Supported by AVR Studio®4.
Zero Insertion Force Socket for SO24 & SO32 Packages.
High Voltage Parallell Programming.
Serial Programming.
DALI Peripherals can be Disconnected from the Device.
6 Pin Connector for On-chip Debugging using JTAG MKII Emulator.
Potentiometer for the Demo Application.
Quick Reference to all Switches and Jumpers in the Silk-Screen of the PCB.
Using the STK520 Top Module
STK520 User Guide 2-4
7510A–AVR–08/05
Section 2
Using the STK520 Top Module
2.1 Connecting the
STK520 to the
STK500 Starter
Kit
Connect the STK520 to the STK500 expansion header 0 and 1. It is important that the
top module is connected in the correct orientation as shown in Figure 2-1. The
EXPAND0 written on the STK520 top module should match the EXPAND0 written
beside the expansion header on the STK500 board.
Figure 2-1. Connecting STK520 to the STK500 Board
Note: Connecting the STK520 with wrong orientation may damage the board.
2.1.1 Placing an
AT90PWM3 on the
STK520
The STK520 contains both a ZIF socket for a SO32 package. Care should be taken so
that the device is mounted with the correct orientation. Figure 2-2 shows the location of
pin1 for the ZIF socket.
Using the STK520 Top Module
2-5 STK520 User Guide
7510A–AVR–08/05
Figure 2-2. Pin1 on ZIF Socket
Caution: Do not mount an AT90PWM3 on the STK520 at the same time as an AVR is
mounted on the STK500 board or at the same time as an AT90PWM2 is mounted on the
STK520 board. None of the devices might work as intended.
2.1.2 Placing an
AT90PWM2 on the
STK520
The STK520 contains both a ZIF socket for a SO24 package. Care should be taken so
that the device is mounted with the correct orientation. Figure 2-2 shows the location of
pin1 for the ZIF socket.
Figure 2-3. Pin1 on ZIF Socket
PIN1
PIN1
Using the STK520 Top Module
STK520 User Guide 2-6
7510A–AVR–08/05
Caution: Do not mount an AT90PWM2 on the STK520 at the same time as an AVR is
mounted on the STK500 board or at the same time as an AT90PWM3 is mounted on the
STK520 board. None of the devices might work as intended.
Using the STK520 Top Module
2-7 STK520 User Guide
7510A–AVR–08/05
2.2 Programmingthe
AVR The AVR (AT90PWM2, AT90PWM3...) can be programmed using both SPI and High-
voltage Parallel Programming. This section will explain how to connect the programming
cables to successfully use one of these two modes. The AVR Studio STK500 software
is used in the same way as for other AVR parts
Note: The AT90PWM3 also support Self Programming, See AVR109 application note
for more information on this topic.
2.2.1 In-System
Programming Figure 2-4. In-System Programming
To program the AT90PWM3 using ISP Programming mode, connect the 6-wire cable
between the ISP6PIN connector on the STK500 board and the ISP connector on the
STK520 board as shown in Figure 2-4. The device can be programmed using the Serial
Programming mode in the AVR Studio4 STK500 software.
Note: See STK500 User Guide for information on how to use the STK500 front-end
software for ISP Programming.
Using the STK520 Top Module
STK520 User Guide 2-8
7510A–AVR–08/05
2.2.2 High-voltage
Programming Figure 2-5. High-voltage (Parallel) Programming
To program the AVR using High-voltage (Parallel) Programming, connect the PROGC-
TRL to PORTD and PROGDATA to PORTB on the STK500 as shown in Figure 2-5.
Make sure that the TOSC-switch is placed in the XTAL position.
As described in the STK500 User Guide (jumper settings), mount the BSEL2 jumper in
order to High-voltage Program the ATmega devices. This setting also applies to High-
voltage Programming of the AVR.
The device can now be programmed using the High-voltage Programming mode in AVR
Studio STK500 software.
Note: See the STK500 User Guide for information on how to use the STK500 front-
end software in High-voltage Programming mode.
Note: For the High-voltage Programming mode to function correctly, the target voltage
must be higher than 4.5V.
Using the STK520 Top Module
2-9 STK520 User Guide
7510A–AVR–08/05
2.3 JTAGICE mkII
Connector See the following document :
“JTAGICE mkII Quick Start Guide” which purpose is “Connecting to a target board with
the AVR JTAGICE mkII”.
This note explains which signals are required for ISP and which signals are required for
debugWIRE.
Figure 2-6 shows how to connect the JTAGICE mkII probe on the STK520 board.
Figure 2-6. Connecting JTAG ICE to the STK520
The ISP connector is used for the AT90PWM3 built-in debugWire interface. The pin out
of the connector is shown in Table 2-1 and is compliant with the pin out of the JTAG ICE
available from Atmel. Connecting a JTAG ICE to this connector allows On-chip Debug-
ging of the AT90PWM3.
More information about the JTAG ICE and On-chip Debugging can be found in the AVR
JTAG ICE User Guide, which is available at the Atmel web site, www.atmel.com.
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