Thursday, May 8, 2008

Basics of AVR for embedded starters..

If you are having any problem with AVR microcontroller burner ....
Not able to get one....
If your PC have a parallel port...
then..
NO need to buy any STK500 or similar....

just....
make your own programmer.....

as simple as possible ....

a) Only 5 wire interface... ( 4 basic wires & one ground cable)

using BSD programmer.....

Just connect pin no..
Parallel Port --- AVR

7 --- RESET
8 --- SCK
9 --- MOSI
10 --- MISO
18-25 ---- GND

Software Used :: AVR dude windows based programmer


b) Use a buffer / driver for the programmer (STK 200 dongle)
http://www.lancos.com/prog.html
(click on above link for the larger image of circuit)
only one IC 74HC244 required
the circuit can be made on a bread board... or on normal PCB

Software used :: PONYPROG on the same website www.lancos.com
* circuit of AVR STK200 dongle is also available on www.electronicsforu.com
or use google search for old Kanda or ISP circuit or STK200 dongle



Both the programmers have been made & tested.

for any help contact me

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