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How to convert parallel to usb port in usb willem program.?

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tps_star

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ch341a

hi
my willem programmer work with parallel port
i need schematic for convert parallel port to usb port in the main programmer same as usb willem programmer
please helpme
thancks
 

winchiphead lpt port -serial

please helpme
i will used USB communication ic for this programmer
and need number USB communication ic and schematic for use
 

buy ch341a

You can buy an USB to parallel port converter, it's not expensive, i guess it's more expensive to make it
 

usb willem

I tried to run willem programmer thru USB to LPT but not worked. Willem requires direct access to LPT for example LPT1: I/O port 0x378, USB emulation don't use I/O Port, only exist Label LPT1.
 

Re: usb willem

Yes, usb to lpt converter will work only with printers. I too had this problem.

There is a circuit which uses a atmega8 in usb to parrallel converter. use google.

Regards
Nandhu
 

usb willem

Hi tps_star:
You can apply 2 free samples CH341A here:
**broken link removed**
It is said the CH341 can do such a job.
 

Re: usb willem

Check FTDI they have got easy to use devices
 

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