Ian Johnston Engineering PDVS2mini, Руководство пользователя

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PDVS2mini FIRMWARE UPGRADE (ATMEL AVRISP MKII)
Occasionally updated software for both the PDVS2mini and the free Windows app may be available. The
current version numbers/dates will also be published at
www.ianjohnston.com , contact us to request the
upgrade files.
The upgrade process I have tested with Win7 & Win10 only, however I cannot guarantee it will work for
you. If the process fails your PDVS2mini may become inoperable until you are able complete the upgrade
process successfully. Important: You do this at your own risk.
Required before you start:
An Atmel AVRISP mkII programmer (USB with 6-pin type header)
is req’d.
The data line logic must be set to 3.3Vdc. If you are using a genuine Atmel
AVRISPmkII then set J1 so that the programmer can deliver the correct
3.3Vdc logic levels. Other programmers may vary so please check.
A copy of AVRDUDESS, freely available here:
http://blog.zakkemble.co.uk/avrdudess-a-gui-for-avrdude/
A .HEX file will be supplied for the upgrade.
The current calibration/settings will not be overwritten, but it is advisable to have them written down. Please
refer to the ReadMe.txt file that accompanies the .HEX file for information and any additional instructions.
Procedure:
Remove the 4 screws on the top of the unit, then locate JP1 Power Bypass header and link it out. The
PDVS2mini will switch on. Important: Use batteries only, do not use external DC power.
Connect the AVRISPmkII to the ICSP header on the Pcb. You will
need a 6-pin (2x3) male-to-male header. Note the orientation.
Run AVRDUDESS and make the selections/options as follows:
- Programmer = Atmel AVR ISP mkII
- MCU = ATmega1284
- Port = USB
- Under FLASH locate the new .HEX file
Important!, if the ICSP header is loose in the Pcb then hold it to one side so that all 6 contacts are made.
Press PROGRAM! on AVRDUDESS and the window at the bottom will show you the upload progress and
should complete as shown (<30secs).
That’s it!......disconnect and don’t forget to remove JP1 PWR BYPASS jumper, and re-boot the PDVS2mini.