89s51 usb programmer

Ajay is right, you can use usb2232 IC to imcomplete it.

here is a schematic about SP200S, it is a free DIY product, hope it can help you.
the all file is below.

Thank you dreamcat.. can you please translate the written stuff.. or just tell if something important is mentioned

Thank you dreamcat.. can you please translate the written stuff.. or just tell if something important is mentioned

Ajay

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I can only translate the chinese part of schametic sheet, but more detail you can email to [email protected] ask the SP200S product. they can give you more information. I am just a visitor for them. I think you cantact with them should be better, I hate my poor english(only can see, can't write or speak.) HaHa~

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in the sheet, the valume of resistor R10 depend of voltage VPP, you can see , Q1 same as a switches, when Q1 is on, VPP should be 14.3V ( +/- 0.3V ); and when Q1 is off, VPP should be 12.3V ( +/- 0.3V ).

this DIY circuit has two version, one is normal, U4 use 89S52, and the other is enhanced, U4 use SST89C58. for the normal version the ISP Part is no needed.

the USB to RS232 converter PL2303 is a nice IC, you can operate it as normal serial port. also can be replaced with other

they only published normal version program, the enhanced version should be publish soon.

here is supported:
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ATMEL [MCU/MPU]
AT89C51 AT89C51@PLCC44 AT89C51@TQFP44 AT89C52
AT89C52@PLCC44 AT89C52@TQFP44 AT89S51 AT89S51@PLCC44
AT89S51@TQFP44 AT89S52 AT89S52@PLCC44 AT89S52@TQFP44
AT89S53 AT89S53@PLCC44 AT89S8252 AT89S8252@PLCC44
AT89C1051 AT89C1051@SOIC20 AT89C2051 AT89C2051@SOIC20
AT89C4051 AT89C4051@SOIC20
　
ATMEL [Serial EEPROM]
AT93C46 AT93C46@SOIC8 AT93C56 AT93C56@SOIC8
AT93C66 AT93C66@SOIC8 AT24C01 AT24C01@SOIC8
AT24C02 AT24C02@SOIC8 AT24C04 AT24C04@SOIC8
AT24C08 AT24C08@SOIC8 AT24C16 AT24C16@SOIC8
AT24C164 AT24C164@SOIC8 AT24C32 AT24C32@SOIC8
AT24C64 AT24C64@SOIC8
　
SST [MCU/MPU]
SST89C54 SST89C54@PLCC44 SST89C54@TQFP44 SST89C58
SST89C58@PLCC44 SST89C58@TQFP44 SST89C59 SST89C59@PLCC44
SST89C59@TQFP44 SST89E54RD SST89E54RD@PLCC44 SST89E54RD@TQFP44
SST89E58RD SST89E58RD@PLCC44 SST89E58RD@TQFP44 SST89E554RC
SST89E554RC@PLCC44 SST89E554RC@TQFP44
　
WINBOND [MCU/MPU]
W78E51 W78E51@PLCC44 W78E51@TQFP44 W78E52
W78E52@PLCC44 W78E52@TQFP44


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the next day I will come again, hope can help you.

thanks dreamcat.. i think its a worth making programmer.. nice share..
will be looking forward for enhanced version.

No thanks. sorry for my fault, the enhanced version only saled with burnned STC89C54RC chips. In our country , it's price is cheap, normal version only sales 70.00RMB, enhanced version only sales 90.00RMB,but they said that not found suitable box install it.
the file SP200S_V100.rar is only normal version's monitor program code.

It means you can crack the enhanced version's code if you want, but you can't sale code.
If you real need it, you can acess the www.willar.com and email to [email protected] request one copy.

I have forgot the site http://world.altavista.com/babelfish/ a long time, it is a good site provide best translate service, it is introduce by a brazile friend. you can use this URL Translated Version

hey friends check this out http://translate.google.com/translate?hl=en&u=http%3A%2F%2Fwww.willar.com%2F

this is English translation of www.willar.com website !dance !dance !dance

HaHa~

but google's translation can't display hole page. so I use Altavista's tanslation.

i use altavista too.. you see flags on the top right they are with altavista

yes~,I saw it. our country's flag.

Dear Dreamcat,
would you please give me the English version of Willar Programmer Software ? I have just download from willar.com and it only displays with "??!!!??!!". I find some Chinese Font from Google but they don't work!
I ask the willar's support but no replied.
Thank you and best regard.
(sorry for my bad English)