[avrdude-dev] Re: Patch for Digilent's USB Programmer

[Dirk Robinson]

It turns out I had an older version of the Digilent USB programmer.
The newer version has a slightly different USB protocol. I've updated
my "USBdigilent" driver for Avrdude to include support for both
cables.

This patch is relative to svn rev. 819. Please consider it for inclusion.

thanks
-Dirk


On Tue, Apr 14, 2009 at 12:04 PM, Dirk Robinson <address@hidden> wrote:
> Hi-
> I wrote a driver for Digilent's USB JTAG/ISP programming cable, and
> would appreciate your considering it for inclusion in avrdude. It is
> based on the code for the usbtiny, and I found the usb packet format
> by using the kernel logging module "usbmon". I have tested
> writing/reading to flash and eeprom for the mega64 and mega168 and it
> seems OK.
>
> The patch also includes changes to the documentation. Feel free to
> edit if you like.
>
> I needed to make a slight change in avr.c. For this programmer, the
> paged write command only works with paged memories, because it can't
> add delay between individual writes. So, I'd like to fall back to the
> default avr_write function for non-paged memories. In order to make
> this work, the counter "i" in avr_write needs to be changed from
> "unsigned long" to "long". I think that matches the original intent of
> the code:)
>
> thanks
> Dirk
>

usbdigilent.patch
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