Space is always available at piclist.com

---
James.
 
 

> -----Original Message-----
> From: piclist-bounces@mit.edu 
> [mailto:piclist-bounces@mit.edu] On Behalf Of Chen Xiao Fan
> Sent: 2005 Aug 04, Thu 06:12
> To: 'piclist@mit.edu'
> Cc: 'rluddy@acm.org'
> Subject: Re: [PIC] Porting libusb application to Windows 
> using libusb-win32
> 
> With the help of the developer of libusb-win32 Stephan Meyer, 
> I have my first success in the porting efforts. I have ported 
> Rick Luddy's USB Linux bootloader for the PIC FS USB demo 
> board to Windows.
> 
> Since I do not have a web site, I will list the changes here.
> 
> 1) solve the problem of getline with Mingw by downloading 
> getline.c and getline.h from the internet and adds the header 
> file to rjlhex.c. Add getline.o to the make file as well.
> 
> 2) the other changes are all applied to fsusb.c
> a) remove call to geteuid. Windows does not have this.
> b) for (bus=usb_busses;bus!=NULL;bus=bus->next) {
> -->    for (bus=usb_get_busses();bus!=NULL;bus=bus->next) {
> c) The main problem is the endpoint address. Linux libusb is 
> not so strict as libusb-win32.
> 
> c1) change "const static int fsusb_endpoint=1" to "const 
> static int fsusb_endpoint_in=0x81" and const static int 
> fsusb_endpoint_out=1". 
> 
> c2) change
> r=usb_bulk_read(d, fsusb_endpoint, dest, len, fsusb_timeout);
> to: 
> r=usb_bulk_read(d, fsusb_endpoint_out, dest, len, fsusb_timeout); 
> 
> c3) change
> r=usb_bulk_write(d, fsusb_endpoint, "\0\0\0\0\0", 5, fsusb_timeout);
> to: 
> r=usb_bulk_write(d, fsusb_endpoint_in, "\0\0\0\0\0", 5, 
> fsusb_timeout); 
> 
> c4) change the rest of the usb_bulk_write() functions to use 
> fsusb_endpoint_in.
> 
> After these changes, the fsusb application works just like 
> the Linux version. It seems that the Linux version of libusb 
> is not so strict on the endpoint address. Despite the error 
> message when flashing the HID demo hex file, the firmware 
> seems to work properly. I have the same error message under 
> Linux. So this is not the problem in the porting.
> 
> If possible I would like to post the changed codes and the 
> compiled application to a web site. The ported application is 
> command line based and require the installation of the filter 
> driver of libusb-win32 and the original Microchip drivers.
> 
> My next step is the usb_pickit application. 
> 
> Regards,
> Xiaofan 
> 
> --------------
> Sample session using MSYS:
> 
> Test@PCAMD64 /e/Coding/fsusb0111
> $ fsusb picdemfsusb.hex 1>picfsusbmsg.txt 2>&1 
> 
> Test@PCAMD64 /e/Coding/fsusb0111
> $ less picfsusbmsg.txt
> Locating USB Microchip(tm) PICDEM-FS USB(tm) (vendor 
> 0x04d8/product 0x000b) found 3 busses Found USB PICDEM-FS USB 
> as device '\\.\libusb0-0003--0x04d8-0x000b' on USB bus bus-1 
> Communication established.  Onboard firmware version is 1.0 
> Writing program memory successful Program memory validated 
> 
> Test@PCAMD64 /e/Coding/fsusb0111
> $ fsusb hid.hex 1>hid.txt 2>&1 
> 
> Test@PCAMD64 /e/Coding/fsusb0111
> $ less hid.txt
> Locating USB Microchip(tm) PICDEM-FS USB(tm) (vendor 
> 0x04d8/product 0x000b) found 3 busses Found USB PICDEM-FS USB 
> as device '\\.\libusb0-0003--0x04d8-0x000b' on USB bus bus-1 
> Communication established.  Onboard firmware version is 1.0 
> Writing program memory successful mismatch in 32-byte chunk 
> at 0x00000000:
> File:  
> 95ef0af01200####################################################
> Device:e3ef03f01200ffff04ef04f01200ffffffffffffffffffff0cef04f
> 01200ffff
> Program memory contains errors!
> 
> 
> ----- Original Message -----
> From: "Chen Xiao Fan" <xiaofan@sg.pepperl-fuchs.com>
> Newsgroups: gmane.comp.hardware.microcontrollers.pic
> Sent: Monday, July 25, 2005 11:13 AM
> Subject: [PIC] Porting libusb application to Windows using 
> libusb-win32
> 
> 
> > Over the weekend I was trying to port two Linux applications
> > to Windows using libusb-win32 and MingW.
> > 
> > One application is Mark Rages' PICkit 1 application used
> > to be at http://mlug.missouri.edu/~markrages/software/usb_pickit/.
> > It seems to me that the web site is down now.
> > 
> > The other is Rick Luddy's USB bootloader for the PIC FS USB
> > demo board at http://internetking.org/fsusb/. 
> > 
> > Both are based on Orion Sky Lawlor's original work for PICkit 1
> > at the following URL:
> > 
> http://lawlor.cs.uaf.edu/~olawlor/projects/2003/microchip/index.html.
> > 
> -- 
> http://www.piclist.com PIC/SX FAQ & list archive
> View/change your membership options at
> http://mailman.mit.edu/mailman/listinfo/piclist
> 
> 


-- 
http://www.piclist.com PIC/SX FAQ & list archive
View/change your membership options at
http://mailman.mit.edu/mailman/listinfo/piclist