On 08/11/2010 08:43 AM, Andrey Batyiev wrote: > Hello > > I'm trying to use usb parallel port cable with wiggler clone, but with > no luck. Cable shows itself in lsusb as: > > Bus 007 Device 039: ID 067b:2305 Prolific Technology, Inc. PL2305 Parallel > Port > > and creates device node as /dev/usb/lp0 > > Looking at openocd code I found out that it use ppdev which is not > supported by usb cable. > Is there any way to use this cable with openocd? > > Without ppdev to abstract the parallel port, you can't use this combination. I suggest you find an old PC with a legacy parallel port.
Even if your cable driver supported ppdev... I was able to get a usb parallel port cable (Moschip 7715) and a Wiggler-compatible JTAG i/f to work with OpenOCD using ppdev on a Linux host, but it was so excruciatingly slow as to be unusable. I now use an old PC to host OpenOCD, networked to my desktop on which I do my development. It's fine for debugging, though large transfers (loading OS to target, dumping large memory region, etc) can take a few minutes. I believe OpenOCD can be compiled to access the parallel port hardware directly, rather than use ppdev. See the configure options. HTH, Mike _______________________________________________ Openocd-development mailing list [email protected] https://lists.berlios.de/mailman/listinfo/openocd-development
