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

[tps_star]

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

 

[tps_star]

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

 

[Fernando Vasquez]

buy ch341a

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

 

[surfman]

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.

 

[nandhu015]

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

 

[ecnbom]

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.

 

[D_A_V_E]

Re: usb willem

Check FTDI they have got easy to use devices