89c51 non-isp programmer

[Alana]

I'd be glad for links and recommendations for 8051 series programmer. I have several of older non-isp chips around and i would like to play with them again. I have programmer for 89c51 and 89cx051 [20pin version] but this is parallel port based and in my new lappy there is no LPT.
I'd strongly prefer DIY version - i propably have all the parts but i do not have money.

[westfw]

Well, it would certainly be easiest to start with some other microcontroller; preferably something with a lot of pins that was itself easily programmable with a modern computer (or perhaps you could borrow a computer with a parallel port for long enough to program an 89c51 to make a programmer from?)  An Arduino MEGA or Sanguino would probably be a good starting point.

I have some 89c51s too; just connecting all those wires seems like a major PITA compared to a modern serial-programmable controller. :-(  Mine are LQFP, so just popping them into a socket doesn't seem likely, either.  Sigh.

[westfw]

Hmm.  I found this: http://www.kmitl.ac.th/~kswichit/easy2/easy2_1.html

[Alana]

Problem is that pc software for it is not available on project's webpage.

[amyk]

http://chaokhun.kmitl.ac.th/~kswichit/ez4/ez4.html

The slight issue is that the programmer itself needs an 89C51 to be programmed... maybe then you'd have to "bootstrap" via DIP switches and pushbuttons?

[Alana]

Those designs are OK and i do have means of programing bin/hex into 89c51 but there is an issue with PC software - i checked out all those programmers on this webpage and the only pc software that is still there is for LPT version.

[notsob]

As you said price was an issue, these are probably not for you but have a look anyway.
http://www.mikroe.com/8051/development-boards/
http://www.mikroe.com/8051/programmers-debuggers/

Notice that the\ey also use the Silabs programmer/debugger   http://www.silabs.com/products/mcu/udp/Pages/UDP-debug-adapter.aspx