Atmel AVR ISP User manual

ISP
.............................................................................
User Guide

Table of Contents
i
Table of Contents
Section 1
Introduction...........................................................................................1-1
1.1 Features....................................................................................................1-1
1.2 Device Support .........................................................................................1-2
Section 2
Getting Started......................................................................................2-1
2.1 Unpacking the System..............................................................................2-1
2.2 System Requirements...............................................................................2-1
Section 3
Hardware Description...........................................................................3-1
3.1 General Board Description........................................................................3-1
3.1.1 RS-232 Serial Interface......................................................................3-1
3.1.2 Control Section...................................................................................3-1
3.1.3 ISP Interface Cables...........................................................................3-2
3.2 AVRISP Power Requirements and Considerations ..................................3-2
3.3 Connecting AVRISP to Target Board........................................................3-2
3.4 Handling the ISP Lines .............................................................................3-3
3.4.1 VCC and GND....................................................................................3-3
3.4.2 SCK....................................................................................................3-3
3.4.3 MOSI/MISO/SCK................................................................................3-3
3.4.4 RESET................................................................................................3-4
Section 4
Software Front-end...............................................................................4-1
4.1 Installing AVR Studio ................................................................................4-1
4.2 Using AVR Studio .....................................................................................4-1
4.2.1 Starting the Windows Software ..........................................................4-1
4.2.2 Starting AVRISP Interface..................................................................4-1
4.2.3 Using AVRISP and STK500 Simultaneously......................................4-2
4.3 AVRISP User Interface .............................................................................4-2
4.3.1 “Program” Settings .............................................................................4-2
4.3.1.1 Device..........................................................................................4-3
4.3.1.2 Programming Mode......................................................................4-3
4.3.1.3 Flash ............................................................................................4-3

Table of Contents
ii
4.3.1.4 EEPROM .....................................................................................4-3
4.3.2 "Fuses" Settings.................................................................................4-3
4.3.3 “Lock Bits”Settings.............................................................................4-5
4.3.4 “Advanced”Settings...........................................................................4-6
4.3.4.1 Signature Bytes............................................................................4-6
4.3.4.2 Oscillator Calibration Byte............................................................4-6
4.3.4.3 Reading Oscillator Calibration Byte .............................................4-6
4.3.4.4 Writing Oscillator Calibration Byte................................................4-6
4.3.5 “Board”Settings..................................................................................4-6
4.3.5.1 Oscillator......................................................................................4-7
4.3.5.2 Revision .......................................................................................4-7
4.3.6 "Auto" Settings....................................................................................4-7
4.3.6.1 Setting up the System for Auto Programming..............................4-8
4.3.6.2 Logging the Auto Programming to a File......................................4-8
4.3.7 History Window...................................................................................4-8
Section 5
Command Line Software......................................................................5-1
5.1 Parameters: ..............................................................................................5-1
5.1.1 Sample Usage....................................................................................5-3
Section 6
Special Considerations.........................................................................6-1
6.1 Fuse Programming ...................................................................................6-1
6.2 RESET Used as General IO Port..............................................................6-1
6.3 AVR Devices with no ISP Option..............................................................6-1
6.4 Devices without RC Oscillator Calibration ................................................6-1
Section 7
Troubleshooting Guide .........................................................................7-1
Section 8
Technical Specifications.......................................................................8-1
Section 9
Technical Support.................................................................................9-1

AVR®In System Programmer User Guide 1-1
Section 1
Introduction
Figure 1-1. AVRISP In-System Programmer
The AVR®In-System Programmer (AVRISP) from Atmel®is a professional low-cost In-
System Programmer covering all AVR 8-bit RISC Microcontrollers. The programmer
connects to a PC through a standard RS-232 serial interface and draws the necessary
power from the target board eliminating the need for an additional power supply.
AVR Studio®is used as front-end software, giving you a highly-integrated development
solution.
1.1 Features ■AVR Studio Interface
■ISP Programming of all AVR Devices
■Programs both Flash and EEPROM
■Supports Fuses and Lock Bit Programming
■Supports RC Oscillator Calibration
■Upgradeable to Support Future Devices
■Operates at Target Voltages from 2.7V to 5.5V
■Adjustable Speed –Supports all Target Boards Running at a Speed Higher than 8
kHz
■RS-232 Interface
■Powered from Target –No need for Additional Power Supply

Introduction
1-2 AVR®In System Programmer User Guide
The AVRISP is fully supported by AVR Studio version 3.5 or higher. For up to date infor-
mation on this and other AVR tool products please read the document “avrtools.pdf”.
LAtest version of AVR Studio (“avrtools.pdf”) and this user guide can be found in the
AVR section of the Atmel web site.
1.2 Device Support AVRISP supports all AVR 8-bit RISC Microcontrollers with ISP programming option.
Support for new devices will be added through new versions of AVR Studio.
AVR Studio will automatically prompt the user if it is detects that the firmware in the pro-
grammer is outdated.
The following devices are currently supported:
■ATtiny12
■ATtiny15
■ATtiny22
■AT90S1200
■AT90S2313
■AT90S/LS2323
■AT90S/LS2343
■AT90S/LS2333
■AT90S4414
■AT90S/LS4433
■AT90S/LS4434
■AT90S8515
■AT90S/LS8535
■ATmega161(L)
■ATmega16(L)
■ATmega163(L)
■ATmega32(L)
■ATmega323(L)
■ATmega103(L)
■ATmega128(L)
Information about supported devices in latest versions of the firmware can be found in
the AVR Studio Online Help System.
Note: For special programming considerations please see Section 6.

AVR®In System Programmer User Guide 2-1
Section 2
Getting Started
2.1 Unpacking the
System The AVRISP contains the following items:
■AVRISP Programmer
■AVRISP User Guide
■10-pin ISP Cable (Connected to AVRISP)
■6-pin ISP Cable
■9-pin RS-232 Cable
2.2 System
Requirements The minimum hardware and software requirements are:
■486 Processor (Pentium is recommended)
■16 MB of RAM
■15 MB of Free Hard Disk Space
■Windows®95/98/2000 and Windows NT®4.0
■115200 Baud RS-232 Port (COM Port)

Getting Started
2-2 AVR®In System Programmer User Guide

AVR®In System Programmer User Guide 3-1
Section 3
Hardware Description
3.1 General Board
Description A block diagram of the AVRISP is shown in Figure 3-1. The AVRISP can be divided in
three sections: The RS-232 interface, the Control section and the ISP cable. In this sec-
tion a brief overview of the different blocks will be given.
Figure 3-1. Simplified AVRISP Block Schematics
3.1.1 RS-232 Serial
Interface The AVRISP uses a standard female DSUB, RS-232 port for communication with the front-end software (AVR Studio). It supports communication of 115200 baud.
3.1.2 Control Section The control MCU handles all communication between the target AVR and the front-end
software. The AVRISP is completely software controlled from AVR Studio. No manual
configuration of the ISP is needed.
A 3-color LED indicates the status of the AVRISP. During programming the LED is yel-
low. When the target AVR is successfully programmed, the LED will turn green. If
programming fails, the LED will turn red to indicate that programming (or verification)
CTRL
MCU
RxD
TxD
GND
VTG
RESET
SCK
MOSI
MISO
RS-232
Level VTG
VTG
GND
RxD
TxD
RS-232 Interface Control Section ISP Cable
Table 3-1. Status Led
Led Color Description
Red-Yellow-Green-Off-Green Cycle Power on Sequence
Yellow Busy –Programming
Red Programming Failed
Green Ready –OK

Hardware Description
3-2 AVR®In System Programmer User Guide
failed. If programming fails, check the “Troubleshooting Guide”on page Table 7-1. Dur-
ing start-up the status LED cycles through red, yellow to green to indicate that the
master MCU is ready.
3.1.3 ISP Interface Cables AVRISP supports both the 6-pin header connector pinout, used by the Atmel AT90ISP
cable, and the 10-pin header connector used by the STK200 and STK300 development
boards. Figure 3-2 shows the pinouts for the 6-pin and 10-pin ISP connectors.
AVRISP is delivered with one 6-wire and one 10-wire ISP cable. Use the one that match
the pinout of the target ISP connector. However, note that only one cable should be con-
nected, and used, at any given time. By default the 10-pin header connector is mounted.
Figure 3-2. AVRISP Connectors (Top View)
3.2 AVRISP Power
Requirements
and
Considerations
Since the AVRISP draws power from the target, it is important that the target board is
able to provide enough power to ensure correct operation. The AVRISP will draw maxi-
mum 50 mA @ 5.5V. The current is drawn through the VTG line. The target should thus
be able to supply at least this amount of power in addition to the requirements of the tar-
get board itself.
See “Technical Spesification”section on page 8-1 for information on power
consumption.
The AVRISP is not equipped with a power switch. Power is turned on when AVRISP is
connected to the target application and turned off when disconnected.
3.3 Connecting
AVRISPtoTarget
Board
The AVRISP connects to the target board through a 3 x 2 or 5 x 2 male header connec-
tor with 2.54 mm (0.1”) spacing (Figure 3-3). If there is a 6-pin or 10-pin ISP connector
on the target board, the cable on the AVRISP has to be changed accordingly.
The power of the target board should be turned off when connecting or disconnecting
the header connector. Hot-swapping is not supported and might damage the
programmer.
Table 3-2. VRISP Connector pinout
Signal 6-Pin 10-Pin I/O Description
VTG 2 2 –Power is delivered from the target board
GND 6 3,4,6, 8,10 –Ground
MOSI 4 1 Output Commands and data from AVRISP to target AVR
MISO 1 9 Input Data from target AVR to AVRISP
SCK 3 7 Output Serial Clock, Controlled by AVRISP
RESET 5 5 Output Reset. Controlled by AVRISP
MISO
SCK
RST
VTG
MOSI
GND
ISP6PIN
MOSI
MISO
RST
VTG
GND
ISP10PIN
GND
GND
GND
SCK
GND