RE: [avrdude-dev] using parallel port programmers with avrdude onwindows 7 64 bit and other versions of 64 bit windows

[Weddington, Eric]

> -----Original Message-----
> From: 
> address@hidden 
> [mailto:address@hidden
> rg] On Behalf Of Florea Bogdan Florin
> Sent: Monday, April 05, 2010 3:23 PM
> To: address@hidden
> Subject: [avrdude-dev] using parallel port programmers with 
> avrdude onwindows 7 64 bit and other versions of 64 bit windows
> 
> Hello,
> 
> I couldn't find any easy way to use parallel port 
> programmers with avrdude on windows 7 because there was no equivalent 
> for giveio driver, so I modified avrdude to use InpOut for 
> parallel port
>  access.
> I used a modified version of InpOut for 64 bit windows from 
> http://www.highrez.co.uk/Downloads/InpOut32/default.htm
> I
>  modified ppiwin.c, rewriting "inb" and "outb" functions to 
> use InpOut.
> This
>  library, InpOut seems to work both on 32 bit windows and on 64 bit 
> windows.
> I think it would be useful to include support for this 
> library in avrdude, so that it can be used on 64 bit versions 
> of windows
>  also. I think that avrdude should try to load giveio driver 
> first and 
> if this fails then it should try to use InpOut. 
> Before running 
> avrdude first time, the user should run 
> windows_inpout\Win32\InstallDriver.exe which seems to install 
> automatically the required version of driver (32 bit or 64 
> bit). A dll 
> file (inpout32.dll) is also required at runtime.
> I have attached the 
> modified version of ppiwin.c . The only file that I modified 
> is ppiwin.c. I
>  also added windows_inpout directory containing InpOut files.

Thanks for doing this!

I took a quick look at the page that you gave a link to above. A couple of 
questions for you:

- If InpOut works well on 32-bit and 64-bit Windows, why do you recommend that 
GiveIO should be tried first?

- On that web page, it recommends using a project called "WinRing0" (apparently 
hosted on SF). Have you looked into this? Would you recommend it?

Thanks,
Eric Weddington