AVR serial and parallel High-Voltage programmer
This programmer isn’t widely popular as usually is easier to use ISP programming method. But sometimes if you need to disable RESET pin and use it as regular pin instead or you want to disable or restore SPI fuses who control ISP programming method, then you will need High-Voltage parallel programmer of AVR microcontrollers.
One of programmers available in the wide internet is HVProg. This is a redesign of STK500 but without development board components. This programmer supports all available AVR microcontrollers in every programming mode and is compatible with AVRstudio.
In HVProg there are two versions of programmer:
The Basic-Version has separate connectors(6 Pin ISP, 10 Pin ISP, Serial HV programming, Parallel HV programming) for the different programming modes it needs a stabilized 5V and 12V input voltages.
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Schematic (Eagle-Format, Freeware 4.11): Download
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Schematic as gif-file (~400kb): Download
- Part list as txt: Download
The Advanced-Version needs an un-stabilized input voltage of at least 15V (AC or DC). It has 6 Pin ISP and 20pin connector for ISP, parallel and serial high-voltage programming.
The original ATMEL firmware is available in .ebn format that is only supported by AvrProg (included in AvrStudio “.\Stk500\stk500.ebn”). When you have the original Avr910 programmer you can directly flash the firmware in the At90s8535 or Mega8535.
- Connect the ISP programming adapter with your computer and the ISP port on the HVProg board;
- Mount the ‘Self-programming’ jumper to pin 1,2;
- Connect the power supply;
- Start AvrProg;
- Select ’stk500.ebn’ and set the appropriate fuses (high frequency crystal for Mega8535);
- Flash the firmware;
- Disconnect power supply and then the programming adapter;
- Mount the ‘Self-programming’ jumper back to pin 2,3.
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November 28th, 2006 at 9:04 am
Has this HVProg been tested for High Volatge Serial\Parallel Programming (12 Volt programming environment) ??
November 28th, 2006 at 5:31 pm
Authors say that HVProg has only been tested in 5V environments. I guess build it at your own risk.
December 7th, 2006 at 8:24 am
Dear Sir,
Why the pins number of micro AT90S8535J-S in the basic-version(hvprog_03.gif) until 44 ??, but pins number of ATMega8535 only 40 (I use Mega8535).
Please help me.
Thanks for your attention.
Regards,
Nyoms
March 14th, 2007 at 10:30 am
Dear Sir,
Can the chip ATMEGA8535 be replaced by ATMEGA16?
thanks!
March 14th, 2007 at 2:05 pm
May 11th, 2007 at 10:48 pm
Do you can write how is setting the fuse bits to use the MEGA8535 ?
thanks
November 19th, 2007 at 6:53 pm
Dear nyomansad;
ATMEGA8535 or At90S8535 in PLCC (or TQFP) has 44 pins as their 4pins are NOT connected! Please check the 8535 datashhet!
Best Wishes!
December 5th, 2007 at 1:23 am
I Can’t Work With avr prog (.ebn)
Please Help Me Or Convert ebn to hex
Thank you