USB Mass Storage Device with HPS Stack

[Hans Petter Selasky]

On Saturday 26 April 2008, Xiaofan Chen wrote:
> http://sourceforge.net/projects/pic18fusb

Hi,

This source code is not USB standard compliant and it is not good!

For example:

//Clear feature
void clear_feature(void){
	parity.msdi_parity = 0; //reset ep1 in parity
	UEP1bits.EPSTALL = 0;
	ep0Bi.CNT = 0; //send zero length packet
	ep0Bi.STAT = 0x80 | 0x40 | 0x08;
	
	send_csw(); //send csw
}

At least this function should check which endpoint you clear the stall on.

Maybe you can get my USB stack working on your PIC board? It now supports the 
Device Side aswell as the host side! See "usbd_handle_request" in:

http://www.selasky.org/hans_petter/isdn4bsd/sources/src/sys/dev/usb/usb_transfer.c

Mass storage driver:

http://www.selasky.org/hans_petter/isdn4bsd/sources/src/sys/dev/usb/ustorage_fs.c

--HPS