AVR-ISP500-TINY User Manual
Contents
1. AVR ISP500 TINY User Manual Petes Gee All boards produced by Olimex are ROHS compliant Rev C May 2009 Copyright c 2008 OLIMEX Ltd All rights reserved INTRODUCTION FEATURES AVR ISP500 TINY is USB in system programmer for AVR microcontrollers featuring two distinctive methods for communication with PC programming software It can implement the STK500v2 protocol as defined by Atmel which makes it compatible with a range of tools including AvrStudio and avrdude It is distinguished from other programmers by its support for autonomous operation AVR ISPS00 TINY contains a 2Mb FLASH memory where it can store entire programming sessions including FUSE LOCK EEPROM and FLASH write and verification as well as signature checking Just hold the button perform all the necessary steps with AvrStudio and disconnect the programmer from the PC Next time button is pressed the programmer will invoke all previously recorded steps without the need for connection to the PC The other supported mode is a USB mass storage FLASH drive where user can drag and drop HEX files for downloading to target AVR chip We believe these features make AVR ISPSOO TINY the perfect low cost tool for firmware upgrades in remote places Fully STK500v2 compatible Works with AvrStudio WinAVR Avrdude and every other software compatible with STK500v2 Two distinctive modes of operation Modes of operation STK500v2 and Mass Storage Drive are2. Check our web www olimex com dev for more info Revision history REV A create April 2008 REV B modify January 2009 Added a troubleshooting guide REV C modify May 2009 Added instructions for avrdude Disclaimer 2008 Olimex Ltd All rights reserved Olimex logo and combinations thereof are registered trademarks of Olimex Ltd Other terms and product names may be trademarks of others The information in this document is provided in connection with Olimex products No license express or implied or otherwise to any intellectual property right is granted by this document or in connection with the sale of Olimex products Neither the whole nor any part of the information contained in or the product described in this document may be adapted or reproduced in any material from except with the prior written permission of the copyright holder The product described in this document is subject to continuous development and improvements All particulars of the product and its use contained in this document are given by OLIMEX in good faith However all warranties implied or expressed including but not limited to implied warranties of merchantability or fitness for purpose are excluded This document is intended only to assist the reader in the use of the product OLIMEX Ltd shall not be liable for any loss or damage arising from the use of any information in this document or any error or omission in such information or any incorre
3. a list Windows does not guarantee that the driver you choose will be the best match for your hardware Hardware Installation The software you are installing for this hardware Olimex Virtual COM AVR SP500 TINY has not passed Windows Logo testing to verify its compatibility with Windows XP Tell me this testing is important Continuing your installation of this software may impair or destabilize the correct operation of your system either immediately or in the future Microsoft strongly recommends that you stop this installation now and contact the hardware vendor for software that has passed Windows Logo testing Continue Anyway STOP Installation _ Found New Hardware Wizard Completing the Found New Hardware Wizard The wizard has finisted irstalling th sofware for 3 Olimex Virtsal COM AVR ISP500 TINY ick Finish to cose the wizard WARNING The COM port number assigned by Windows to AVR ISPS00 TINY must be COM4 or below Otherwise AvrStudio might not be able to detect the programmer Here are the steps to change it 1 Go to Device Manager 2 Unfold Ports COM amp LPT and right click on Olimex Virtual COM AVR ISP500 TINY COMxx where COMxx can be anything between COM1 and COM255 Select properties Deyice Manager e m fS eA H E IDE ATA ATAPI controllers H Infrared devies amp Keyboards Mice and other pointing devices Mort lors Network adapters Ports COM amp LPT 9 Com
4. Storage USB Class any recent one should do fine SUPPORTED MICROCONTROLLERS The following AVR microcontrollers are supported for programming Classic 8 bit AVRs see the notes for Mass Storage Mode megaAVR tinyAVR USB AVR The following AVR microcontrollers are not supported XMEGA AVR32 The following programming methods are not supported JTAG debugWire Parallel High Voltage Programming Serial High Voltage Programming PDI CONNECTOR SCHEMATICS ICSP10 2 N 8 i Aa pin description Ser via 1 Serial Output 2 Target VCC 3 Clock output 4 Ground 5 Target RESET 6 Ground 7 Serial Clock 8 Ground 9 Serial Input 10 Ground 2 ICSP6 i description Serial Input Target VCC maT Serial Clock 435 Serial Output Target RESET Ground POWER SUPPLY Normally the programmer is supplied from USB For autonomous operation user must power the programmer by providing 5V DC stabilized power supply to the USB connector as shown on the figure below POWER SUPPLY CABLE CONNECTIONPinConnect to 1 5V stabilized power supply 2NC3NC4GND PC DRIVER INSTALLATION Drivers for the Mass Storage mode are integrated in Windows XP Vista The driver for STK500v2 mode is available from our website Windows installation steps are the following 1 Download and unzip the file AVR STKSOO TINY drivers zip in a temporary directory Plug the programmer in the USB port Point the Device W
5. ct use of the product
6. g state So for best results it is recommended to issue all commands in a predefined order This is achieved by the Auto feature of AvrStudio Programming Dialog After setting the FLASH and EEPROM files FUSE and LOCK settings and selecting the target AVR device switch to the Auto tab of the programming dialog STK500 in ISP mode with J Main Program Fuses LockBits Advanced HW Settings HW Info Auto I Erase Device Start I Check signature IX Program FLASH F Verify FLASH I Read FLASH I Program EEPROM I Verify EEPROM C Read EEPROM I Write osc cal byte I Program fuses IM Verify fuses I Read fuses Iv Program lock bits I Log to file PF Verify lock bits Overwrite I Read lock bits E Append Browse V Enable fuse wamings Getting revisions HW G02 SW Major 0x02 SW Minor QxOa OK Select the operations that should be performed and hold the programmer button for 5 seconds to activate command logging Then hit the Start button to initiate a programming operation After Auto operation finishes successfully turn off command logging TIP If target signature must be verified during autonomous operation READ SIGNATURE command must be issued while in command logging state MASS STORAGE MODE In this mode the programmer behaves like a USB mass storage drive containing FAT12 file system The drive root directory must contain an IHEX file that will be program
7. gramming session to fix the FUSE values CAVEAT If an error occurs in standalone mode the Leave Programming Mode command will not be executed so the external clock output will stay active Due to the AVR ISP500 hardware implementation this can cause target VCC to be incorrectly read as Vtarget 5V TIP If clock output is needed when target is not being programmed then the following steps must be followed Make sure that programmer contains a valid log no matter its contents Disconnect the programmer then press the button and wait for RED LED to blink for error After that the clock output will stay activated FIRMWARE UPGRADE All AVR ISPS500 devices contain a built in boot loader for easy firmware upgrade Device enters boot loader mode if the application FLASH section is corrupted To force the device to enter boot loader mode for manual firmware update do the following 1 Disconnect the programmer from any power source external AC DC USB 2 Press and hold the button 3 Power up the device by connecting it to USB 4 Device now must be in boot loader mode indicated by the LED light sequence a RED on GREEN off b RED off GREEN on c RED off GREEN off Button can now be released The device will stay in boot loader mode until it is power cycled All boot loaders implement the standard protocol XMODEM with CRC16 for firmware update User is free to use his favorite terminal client HyperTerminal minicom etc t
8. inary IHEX records File system must be formatted with FAT12 FAT16 and FAT32 will not work In most cases it will not be a problem as Windows automatically chooses FAT12 for partitions less than 32Mbytes The INI file parser is rather simple It does not understand comments and white spaces It uses a simple substring search to locate parameter values It is not case sensitive though The INI parser scans only the first 128 characters discarding the rest of the file The USB device is disconnected from USB Host while doing an autonomous ISP operation SWITCHING OPERATING MODES Switching between STKS500v2 and Mass Storage modes of operation is achieved by uploading the corresponding firmware image using the same process as device firmware upgrade See the section Firmware Upgrade for more information CLOCK OUTPUT Pin 3 of the ICSP10 connector is normally left unconnected by other ISP programmers Not ours In normal programmer state this pin is tri stated During programming operation however this pin is made output and a square wave clock is generated Clock frequency is fixed to 62 5kHz After programming operation finishes this pin is again tri stated in order not to interfere with the target circuit This clock output can be really helpful when target AVR is accidentally programmed with External Clock FUSE option To resurrect it just wire ICSP10 pin 3 to XTAL1 pin of the target AVR chip and initiate a pro
9. izard to the temporary directory Windows will complain that drivers are not signed Click Continue Click finish Screen shots of the steps are shown below Sh Found New Hardware Wizard Welcome to the Found New Hardware Wizard Windows will search for current and updated software by looking on your computer on the hardware installation CD or on the Windows Update Web site with your permission Read our privacy policy Can Windows connect to Windows Update to search for software D Yes this time only Yes now and every time connect a device i Click Next to continue Found New Hardware Wizard This wizard helps you install software for Olimex Virtual COM AVR ISP500 TINY C f your hardware came with an installation CD or floppy disk insert it now What do you want the wizard to do Click Next to continue lt Back Net gt Cancel Found New Hardware Wizard Please choose your search and installation options ra Y Search for the best driver in these locations Use the check boxes below to limit or expand the default search which includes local paths and removable media The best driver found will be installed _ Search removable media floppy CD ROM Include this location in the search CA MY_TEMPORARY_FOLDER w Browse Dont search will choose the driver to install Choose this option to select the device driver from
10. med into the target along with some other special files All files are recognized by their extension ONLY If two or more files with the same extension exist in the root directory then the firmware will pick up the first found one the first in the FAT12 root directory table List of needed files for programming the target AVR chip JINI mandatory programming parameters This is a plain text file that contains target programming parameters The firmware will scan the first 128 characters in search for option values It should look like ISPFREQ 0x02 jsmandatory FUSES 0x1 12233 joptional LOCK Oxff optional The ISP frequency option is a HEX value determining the used ISP SCK frequency Firmware will determine the actual ISP frequency from the given value this way 0x00 2MHz 0x01 SOOKHz 0x02 125KHz 150 X Khz for X gt 3 The fuses option is a 24bit three byte HEX value that determines the Extended FUSE value to be programmed the MSB byte the High FUSE and the Low FUSE the LSB byte The lock byte option determines the 8bit value that will be programmed to the target LOCK byte NOTE There must be no spaces between option names the equal sign and the HEX value The firmware parser does not strip white spaces nor does it understand comments NOTE FUSES value must be exactly three bytes six HEX digits no more and no less If target device does not have Extended or High fuses the programmer will j
11. munications Part COM oY ECP Printer Port LPT1 A Olimex Virtual COM AVR ISP500 TINY COM40 9M Processors Sound video and gare controlers System devices E Universal Seral Bus controllers 4 Change the COM Port Number to COM3 or COM4 Advanced Settings for COM40 V Use FIFO buffers requires 16550 compatible UART Select lower settings to corect connection problems Select higher settings for faster performance Receive Buffer Low 1 nl High 14 14 o 18 5 Click OK 6 Ifa warning message pops up and complains about COM port being used by another device click Yes 7 Click OK to close the device properties USING AVR ISP500 TINY WITH AVRSTUDIO STK500v2 mode WARNING The COM port number assigned by Windows to AVR ISP500 TINY must be COM4 or below Otherwise AvrStudio might not be able to detect the programmer See the section for PC Drivers Installation for more information Usage under AvrStudio is straightforward First open the Programmer Connect dialog AVR Studio i Dle Project Build View Tools Debug Lelp BAP vVsAT AGI BW MAAAKEE HD Trace Disabled yt ok T ia A eS an buid message hind in les treakpoints and recepoints e j Then select STK500 or AVRISP option with automatic port detection Select AVR Programmer Platform Cancel Baud rate fi 15200 Tip To auto connect to the programme
12. n LED1 off LEDO on else if empty LED1 on LED0O blink_ fast LED 1 off SHOW_LOG STATUS if log empty else LEDO off LED1 blink fast Button pressed IDLE eee sete passed or LEDO off button pressed LED1 on Button held for 1 second Button pressed Button released ENABLE_LOGGING LEDO blink_fast Button held LEDO blink_slow LED 1 off else LEDO off LED1 blink_slow if rs232_packet_received erase_log for 5 seconds LED1 blink_fast NOTE LEDO is RED and LED1 is GREEN If both are on the result is Yellow glow In case of autonomous operation error the RED LED will blink for a while The number of flashes indicates the error that caused the failure Error codes are given in the table below Number of RED flashesAction that failed 1Enter programming mode 1Signature read mismatch 2FLASH read mismatch 2EEPROM read mismatch 2FUSE read 2LOCK read 3Corrupted log 40ther command ans wer error Example LED1 LEDO Error code 2 flashes End of error code LEDO D Kp qena mismatch p a iehis constans p idle CAVEAT RC calibration in autonomous mode is not supported The reason is that the programmer has no way to distinguish RC value writes to FLASH from normal data ones TIP Sometimes AvrStudio will issue FUSE LOCK reads when the corresponding tabs are selected This however will be recorded by the programmer if it is in command loggin
13. o upload the firmware images taken from our website The serial port settings for the AVR ISP500 ISO boot loader are 9600 baud sec 8 data bits no parity 1 stop bit The AVR ISP500 TINY MASS NANO boot loaders implement a USB virtual serial port that is baudrate agnostic As an alternative we provide a simple Windows GUI application for users who don t want to or cannot use terminal software After the firmware image is uploaded the target will blink the GREEN LED if update was successful otherwise it will blink the RED LED if firmware image was invalid or update was unsuccessful Device stays in this state until it is power cycled TROUBLESHOOTING GUIDE Problem AVR Studio cannot find my programmer Probable causes and solutions Look whether the programmer is listed in Device Manager under the Ports COM amp LPT section If it s not there then check your USB cables and hubs Reinstall the driver Check that the green LED is constantly on If not then the programmer might be in firmware upgrade mode Go to the firmware upgrade section for more details e Your serial port number might be too high Check the manual section Installing drivers for more information on assigning serial port numbers Also go to AVR Studio menu Tools gt Options and set the Number of COM ports to try field to at least 20 Remove all applications that might be using or scanning your computer s serial ports including an
14. r used last time press the Programmer button on the toolbar Baud rate changes are A M _ active immediately Note that a tool cannot be used for programming as long as it is connected in a debugging session In that case select Stop Debugging first Disconnected Mode After pressing Connect the programming dialog should appear STK500 Main Program Fuses LockBits Advanced HW Settings HW Info Auto r Device and Signature Bytes No device selected 7 Erase Device Signature not read Read Signature m Programming Mode and Target Settings isP mode Settings ISP Frequency 460 8 kHz M4 Getting revisions HW 0x02 SW Major x02 SW Minor xa OK Getting isp parameter SD 0x01 OK Target AVR now can be erased flashed with a provided HEX file FUSES and LOCK bits can be written and or verified For more information please consult the AvrStudio documentation CAVEAT Although the programmer will happily accept setting VTARGET and ARef in the HW SETTINGS tab these actions will have no effect The programmer hardware can only read target VCC and show it simultaneously in the VTARGET and ARef sliders USING AVR ISP500 TINY WITH AVRDUDE AVRDUDE requires the serial port name assigned by the Operating System to AVR ISP500 TINY It must be given with the P command line option For Windows systems please check the Device Manager For Linux systems the follo
15. switched easily by uploading firmware images available from our website USB port for connection to PC Stand alone operation without the need for PC connection allowing firmware mass programming on many devices with single button press One bi color LED for current operation status Supports both standard ICSP10 and ICSP6 connectors Button for initiating autonomous operations and command logging Powered by USB External clock output on ICSP10 pin 3 for rescuing AVRs with enabled external clock fuse Supports target voltages ranging from 1 8V to 5 5V ISP clock frequencies ranging from 5kHz to 2MHz ELECTROSTATIC WARNING The AVR ISP500 TINY board is shipped in protective anti static packaging The board must not be subject to high electrostatic potentials General practice for working with static sensitive devices should be applied when working with this board REQUIREMENTS Cables 1 8 meter USB A B cable Ten or six wire ribbon cable for connection to target AVR chip USB power supply cable for autonomous operation Software Software needed for STK500v2 mode AvrStudio available from Atmel avrdude included in the WinAVR distribution Any other software with support for the STK500v2 protocol Software needed for Mass Storage mode AVR binary chip description files available from our website Plain text editor for editing the configuration file Operating system with support for Mass
16. than other programmers on the market because it has 560 ohm resistors in series with all its outputs This protects both the target MCU and the target board circuit ELECTRICAL CHARACTERISTICS Symb Description Condition Min Typ Max Uni ol ts Vrara Target Supply Voltage 1 8 5 5 V Fisp ISP Frequency on SCK 5 2000 kHz SPI pin Vec Programmer Power 4 6 5 4 IV Supply Voltage Icc Programmer Power Idle 25 mA Supply Current Autonomous operation 35 mA Vrarc 1 8V Figp 2MHz Programming with AvrStudio 35 mA logging enabled Vrarc 1 8V Fisp 2MHz Time for a full Autonomous operation 50 s programming and Vrarc oV Fisp 2MHz verification of Programming with AvrStudio 68 s ATMEBATAB 128k logging enabled Vrare 5V FLASH 4k EEPROM 98818 Se Fisp 2MHz FUSES LOCK Signature check Programming with AvrStudio 58 s logging disabled Vrare 5V Fisp 2MHz Symb Description Condition Min Typ Max Uni ol ts Time for a FLASH Autonomous operation 15 s programming and Vrarc OV Fisp 2MHz verification of Programming with AvrStudio 32 s ATmega128 128k i FLASH logging enabled Vrara 5V Fisp 2MHz Programming with AvrStudio 22 s logging disabled Vrare 5V Fisp 2MHz ORDER CODE AVR ISP500 TINY assembled and tested no kit no soldering required How to order You can order to us directly or by any of our distributors
17. ust ignore these values APD mandatory AVR target part description This file selects the target chip and contains a description of how to program it Olimex provides these files for the supported devices HEX mandatory FLASH Intel HEX image This is the FLASH image that will be programmed EEP optional EEPROM Intel HEX image This is the EEPROM image that will be programmed When idle the device will have all LEDs turned off When the button is pressed the device will disconnect its USB port and will try to program the target During programming the LED will be yellow red green either static or blinking When programming finishes the LED will become red if programming failed or green if programming and verification succeeded User then must acknowledge the operation by pressing the button which in turn will cause the device to reattach its USB port LIMITATIONS OF THE MASS STORAGE MODE The current firmware for Mass Storage mode has the following limitations Fuse and Lock bytes read write and verification does not work on most of the classic AVRs AT90S2313 AT90S4433 AT90S8515 due to inability of the chips to read back lock and fuse bytes and or due to their non compatible ISP commands for doing that Flash writing works though The IHEX parser that is integrated into the firmware is very basic Sometimes it will choke on perfectly valid IHEX images In such cases try to strip the IHEX from extraord
18. wing command will list all USB CDC serial ports ls dev ttyACM For MacOS X systems the following command will list all serial ports ls dev cu An example command line for programming an Atmega88 under MacOS X avrdude p m88 B 50 c stk500v2 P dev cu usbmodem000010471 e U flash w blinkled hex AUTONOMOUS OPERATION STK500v2 mode When the button is held pressed for 5 seconds programmer enters command logging state In this state it will execute and log all commands received from the PC software in its internal FLASH memory When the button is pressed again programmer will enter its normal state where commands will be executed but not logged Logged commands can be executed again without the presence of a connected PC by simply pressing quickly the programmer button while in normal state The bi color LED will glow yellow while operation is in progress After operation finishes successfully the GREEN LED will blink for a while otherwise on error the RED LED will blink for a while After that the programmer will enter normal state where only the GREEN LED is on constantly If programmer button is pressed and held for more than 1 second but less then 5 seconds it will show the current log status A blinking GREEN indicates a valid log and blinking RED indicates invalid erased log The formal definition of the programmer states is given below AVR ISP500 STATES SHOW_RESULT if error STANDALONE _ISP Finished LEDO0 o
19. y serial port monitors They might mess up the STK500v2 communication between AVR Studio and the programmer Problem Programming fails Target AVR chip cannot enter programming mode Probable causes and solutions e ISP frequency might be too high Set the ISP frequency to well below 4 of target MCU clock Please note that the AVR MCU clock depends on its fuses configuration Target power might not be stable enough or supply voltage might be too low Check your target board circuit Ensure that the used AVR chip specifications match your supply voltage Target power supply VCC might not be connected to pin 2 of ICSP6 10 Check your target board circuit The target AVR MCU might have fuses programmed for disabling SPI ISP or selecting another programming method In such case you ll need a High Voltage Parallel programmer to unlock the chip The reset line cannot be pulled low by the programmer Check your schematic and ensure that only a weak pull up and possibly a small capacitor are connected to RESET Otherwise if the pull up is too small or there is another output driving RESET the programmer won t be able to pull it down e Another circuit is driving the ISP lines MISO MOSI SCK or RESET resulting in a contention with the programmer The solution is to remove all such circuits LEDs RS232 drivers resistors below 2k etc from the four ISP lines during programming AVR ISP500 is more susceptible to this kind of fault
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