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
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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
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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.

Using the STK520 Top Module
STK520 User Guide 2-10
7510A–AVR–08/05
Figure 2-7. JTAG Connector
Table 2-1. STK520 ISP Connector Pinout
Squid
Cable
Colours Target pins STK520 ISP pinout Target pins
Squid
Cable
Colours
grey MISO 1 2 VTG purple
black SCK 3 4 MOSI red
green RESET 5 6 GND brown

Using the STK520 Top Module
2-11 STK520 User Guide
7510A–AVR–08/05
2.4 STK520
Jumpers, Leds &
Test Points Table 2-2. STK520 Jumpers
Jumper Function Description
JP1 XT1 Connect STK500 XT1 circuit to AVR PE1
JP2 XT2 Connect STK500 XT2 circuit to AVR PE2
JP3 RESET Connect STK500 RESET circuit to AVR PE0
JP4 RX Connect RxD DALI to RxD Input of the AVR
JP5 TX Connect TxD DALI to TxD Output of the AVR
JP6 VTG Useful to measure the VCC and AVCC current
JP7 ANA REF Connect STK500 REF circuit to AVR AREF
JP8 D2A Isolate D2A outpu
JP9 AMP0+ Isolate AMP0+ input
JP10 AMP0- Isolate AMP0- input
JP11 AMP1+ Isolate AMP1+ input
JP12 AMP1- Isolate AMP1- input
JP13 Potentiometer supply from Analog V Ref
JP14 Potentiometer output to ADC0 input
Table 2-3. STK520 Leds
Led Function Description
D3 RX RX data detected by DALI Interface
D4 TX TX data sent to DALI Interface
Table 2-4. STK520 Test Points
Test Point Function Description
T1 GND Electrical ground of the STK520 board
T2 GND Electrical ground of the STK520 board
T3 AREF AREF pin of the AVR
T4 D2A D2A output of the AVR
T5 DALI Rectified DALI line
T6 Tx TX data sent to DALI Interface
T7 Rx RX data detected by DALI Interface

Using the STK520 Top Module
STK520 User Guide 2-12
7510A–AVR–08/05
2.5 DALI Interface STK520 includes a non-isolated DALI Interface. The DALI Interface converts AVR RxD
and TxD pin level to DALI compatible electrical level. It acts as a duplexer, so it inter-
faces the two RxD and TxD lines to one DALI line.
To use the DALI Interface, it is necessary to mount TxD and RxD jumpers. When these
jumpers are removed, the AVR is not inflenced by the interface. The TxD and RxD AVR
pins are also available on STK500 PD3 and PD4 connectors.
Thanks to a diode bridge, the DALI connector is not polarized.
Figure 2-8. DALI
Figure 2-9. DALI Connector
AVR
TxD
RxD
DALI Transmitter
DALI Receiver
JP4
JP5
PD4 PD3
DALI Lin
e
Bridge
Rectifier
J3
RX Led &
Test Point
TX Led &
Test Point

Using the STK520 Top Module
2-13 STK520 User Guide
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2.6 Potentiometer The STK520 includes a potentiometer. To use the potentiometer, please mount JP13
and JP14 jumper.
The potentiometer is supplied by AREF and it delivers a voltage to the AVR ADC0 input.
Figure 2-10. Potentiometerr
2.6.0.1 XT1 Jumper As the jumper JP1 (XT1) is short circuited by Printed Circuit Board wire, it’s always ON.
So it’s not mounted. To open this jumper, it’s necessary to cut the wire between JP1 pin
(solder side).
It’s possible to open XTAL1 circuit which comes from STK500 board by removing the
XTAL1 jumper on the STK500 board.
2.6.0.2 RESET Jumper As the jumper JP3 (RESET) is short circuited by Printed Circuit Board wire, it’s always
ON. So it’s not mounted. To open this jumper, it’s necessary to cut the wire between
JP3 pin (solder side).
It’s possible to open RESET circuit which comes from STK500 board by removing the
RESET jumper on the STK500 board.

STK520 User Guide 3-14
Rev. 7510A–AVR–08/05
Section 3
Troubleshooting Guide
Note: 1. See the application note “AVR065: LCD Driver for the STK520 LCD” on how to con-
trol the LCD-display or the the application note “AVR064: STK520 – A Temperature
Monitoring System with LCD Output”.
Table 3-1. Troubleshooting Guide
Problem Reason Solution
Serial Programming
does not work
ISP cable not connected. Connect the ISP cable according to
Figure 2-4.
STK500 target voltage
error. Please refer to the AT90PWM3 datasheet for the Serial
Programming Voltage limits. Adjust
the target voltage on the STK500
board accordingly.
The RSTDISBL Fuse is
programmed. Use Parallel Programming to unprogram the RSTDISBL Fuse.
Parallel Programming
does not work.
Cables not connected
properly. Please refer to Figure 2-5 for correct Parallel Programming setup.
STK500 target voltage
error. Please refer tothe AT90PWM3data sheet for the Parallel Programming
Voltage limits. Adjust the target
voltage on the STK500 board
accordingly.
Emulation does not
work.
ISP cable not connected. Connect the ISP cable according to
Figure 2-7.
Conflict with STK500
Reset Remove Reset Jumper on STK500 Board
DWEN fuse is not
programmed Please set the DWEN bit using parallel programming
The RSTDISBL Fuse is
programmed. Use Parallel Programming to unprogram the RSTDISBL Fuse.

Technical Specifications
STK520 User Guide 4-16
7510A–AVR–08/05
Section 4
Technical Specifications
System Unit
Physical Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56 x 119 x 27 mm
Weight . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70 g
Operating Conditions
Voltage Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1,8V - 5,5V
Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0°C - 50°C
DALI Interface
Maximum DALI Voltage. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25V
Maximum Input DALI Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 500mA

Technical Support
STK520 User Guide 5-18
7510A–AVR–08/05
Section 5
Technical Support
For Technical support, please contact av[email protected]m. When requesting technical sup-
port, please include the following information:
Which target AVR device is used (complete part number).
Target voltage and speed.
Clock source and fuse setting of the AVR.
Programming method (ISP or High-voltage).
Hardware revisions of the AVR tools, found on the PCB.
Version number of AVR Studio. This can be found in the AVR Studio help menu.
PC operating system and version/build.
PC processor type and speed.
A detailed description of the problem.

STK520 User Guide 6-18
Rev. 7510A–AVR–08/05
Section 6
Complete Schematics
On the following pages the complete schematics and assembly drawing of the STK520
revision A are shown.

Complete Schematics
6-19 STK520 User Guide
7510A–AVR–08/05
Figure 6-1. Schematics, 1 of 4
5 5
4 4
3 3
2 2
1 1
D D C C B B A A
XT1 XT2
REF PE0
PD2
PB5 PC3
PB6
PD4
PB7
PD6
PD7
PC5
PB[7..0]
PD1
PB0
PC4
PB1
PC7
PD3
PB4 PC0
PC6
PD0
PB3
PD5
PC1
PC[7..0]
PC2
PB2
PD[7..0]
PE1 PE2
PE[2..0]
RESET
PE2
PE[2..0] PB[7..0] PC[7..0] PD[7..0]
VTGVTGVTGVTG
AREFT
PE2 PE1 PE0
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STK520 MEZZANINE FOR STK500
Note : JP1 and JP3 are not mounted
PA0 is connected to PE2 for BSEL2 function.
1 2
JP1
XT1
JP1
XT1
CP2CP2
GND
1GND 2
AUXI1
3AUXO1 4
DATA7
5DATA6 6
DATA5
7DATA4 8
DATA3
9DATA0 10
DATA1
11 DATA9 12
SI
13 SO 14
SCK
15 CS 16
XT1
17 XT2 18
VTG
19 VTG 20
GND
21 GND 22
PB7
23 PB6 24
PB5
25 PB4 26
PB3
27 PB2 28
PB1
29 PB0 30
PD7
31 PD6 32
PD5
33 PD4 34
PD3
35 PD2 36
PD1
37 PD0 38
GND
39 GND 40
CON 2x20
J1
EXP. CON 1
CON 2x20
J1
EXP. CON 1
Q1 BC847B Q1 BC847B
1 2
JP2
XT2
JP2
XT2
C3
100nF
C3
100nF
1 2
JP3
RESET
JP3
RESET
R2 10K R2 10K
C2
1nF
C2
1nF
CP1CP1
C1
100nF
C1
100nF
GND
1GND 2
AUXI0
3AUXO0 4
CT7
5CT6 6
CT5
7CT4 8
CT3
9CT2 10
CT1
11 BSEL2 12
(n.c.)
13 REF 14
NRST
15 PE2 16
PE1
17 PE0 18
GND
19 GND 20
VTG
21 VTG 22
PC7
23 PC6 24
PC5
25 PC4 26
PC3
27 PC2 28
PC1
29 PC0 30
PA7
31 PA6 32
PA5
33 PA4 34
PA3
35 PA2 36
PA1
37 PA0 38
GND
39 GND 40
CON 2x20
J2
EXP. CON 0
CON 2x20
J2
EXP. CON 0
R1 2K R1 2K

Complete Schematics
STK520 User Guide 6-20
7510A–AVR–08/05
Figure 6-2. Schematics, 2 of 4
5 5
4 4
3 3
2 2
1 1
D D C C B B A A
PD4 PD2 PD3
PD3 PD4PD4
PE0
PD[7..0]
PD[7..0]
PE[2..0]
VTG
VTG
VTG
VTG VTG
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STK520 MEZZANINE FOR STK500
DALI INTERFACE
R3 1K5R3 1K5
TP T7
Rx
TP T7
Rx
R13 1K R13 1K
C6
100nF
C6
100nF
D4 RED D4 RED
R14
10K
R14
10K
1
4
3
2
-+
BR1 MB2S
-+
BR1 MB2S
1
23
Q4
BC857B
Q4
BC857B R12
10K R12 10K
PDO
1VCC 2
SCK
3PDI 4
RESET
5GND 6
CON 2x3
J4
ISP CON
CON 2x3
J4
ISP CON
R11
100K
R11
100K
C5
1nF
C5
1nF
R10
10R
R10
10R
1 2
D1 BAS16 D1 BAS16
R9 10K R9 10K
Q3 BC847B Q3 BC847B
TP T6
Tx
TP T6
Tx
R8
10K
R8
10K
R5 2K2 R5 2K2
1 2
JP4
RxD DALI
JP4
RxD DALI
1 2
JP5
TxD DALI
JP5
TxD DALI
Q5
FMMT491A
Q5
FMMT491A
1
23
Q2 BC857B Q2 BC857B
R7 10K R7 10K
+
C4 10µF
+
C4 10µF
TP T5
DALI
TP T5
DALI
1 2
J3
DALI
J3
DALI
R15
10K
R15
10K
D3 GREEN D3 GREEN
R6
10K
R6
10K
R4 1K5R4 1K5