Hi Prahlad J. Purohit,
I checked out the GAL programmer at
http://mpu51.tripod.com/gal/gal.html. The printed
circuit board is well laid out. It will require a
photographic method in order to reproduce with any good
resolution. The schematic looked good also.
I don't have any first hand experience with this GAL
programmer so I would say go for it.
While I was surfing this site I noticed there are other
programmers that are impressive. It would appear the
table top type programmers are alive and well.
http://mpu51.tripod.com/jdm84/jdm2001.htm
Regards,
Charles Bannister
http://mpu51.tripod.com/jdm84/jdm2001.htm
====================PROPIC II=====================
http://mpu51.tripod.com/propic/propic2.jpg
I2C 24C02,24C04
PIC PIC16F84, 16F872, 16F877, 12C509(EPROM)
=====================================GAL Programmer===============
http://mpu51.tripod.com/gal/gal.jpg
20 pin 16V8/A/B/C/D/Z/ZD, 18V10/B
24 pin 20V8/A/B/Z, 20RA10/B,20XV10/B, 22V10/B/C/Z, 6001/B,6002
28 pin 26CV12
Voltage select 3.2 or 5V
Erase-Pulse select 12,25,50,100,200,400 ms
Vpp select 12 to 20.50V step 0.25V (autodetect)
=====================================Peter Dannegger================
http://mpu51.tripod.com/proflash/proflash2.jpg
http://mpu51.tripod.com/proflash/prozif.jpg
ProFLASH: Peter Dannegger provides a nice programmer capable
for writing hex code into AT89C51/AT89C52 (at 12V only), AT89C1051
/ AT89C2051 / AT89C4051, AT90S1200 / AT90S2313 (AVR)
AT89S8252 / AT89S53, AT89C55, ATtiny22 (new)
=====================================Pic Programmer================
http://mpu51.tripod.com/jdm84/JDM2001.jpg
Programmer PIC16F84,12C50x and EEPROM 24Cxx
Schematic form http://www.jdm.homepage.dk/newpic.htm
No requied power supply
Old version JDM84
=====================================50 Mhz LCD Freq Counter========
http://mpu51.tripod.com/fc50mhz/50mhz1.jpg
http://mpu51.tripod.com/fc50mhz/50mhz12.jpg
Frequency counter 0-50MHz
=================================================================