USB 16C745

lferrari · Joined: 02 Jun 2004 Posts: 7 Location: WM

Hi,
I have tried the ex_usb_hid.c and to be honest I'm about to give up.

The compiler comes up with errors like "Constant out of range" in pic_usb.h on "uep=0x1A0;" where uep is an int8*, but I'm not sure if I'm compiling on the right bit number "Microchip 14 Bit" its the only way it will accept the #include "16c745.h".
Is it because I'm using 16c745 instead of 16c765??

After correcting these problems I have run it and the PC asks for drivers so I'm not sure if there is something on the line that is not right, has anyone tried these descriptors before? should the PC recognise it normally? I can't use any debug as it adds delays on the communication and the PC doesn't like it.

I heard Darren is on top of it but I'm sure if he is around.

If anyone has tried it before and had good results please could you send the *.c and *.h

Many thanks

Ttelmah · Guest

Darren Rook · Joined: 06 Sep 2003 Posts: 287 Location: Milwaukee, WI

It sounds like you have 16bit pointers disabled. Since the example has 16bit pointers enabled at the beginning of the file you must have modified the file.

lferrari · Joined: 02 Jun 2004 Posts: 7 Location: WM

Yes! you are right Darren, somehow I have deleted the line that enables 16Bits Evil or Very Mad

, so all this work for nothing.
I have tried again and it works ok.

Many thanks Smile

Leo

taujin · Joined: 01 Nov 2004 Posts: 1 Location: Malaysia

Guys, i cannot compile the ex_usb_hid.c as well.

The pic_usb.h pop pop up and show some sort of error: Function defination different from previous defination at the

int8 usb_get_packet(int8 endpoint, int8 * ptr, int8 max) {
int8 * buff = 0x1A1; //BD0OBC - EP0 OUT (in to PIC) byte count
int8 * al=0x100;
int8 len;
int8 i=0;

buff+=endpoint*8; //goto BDxOL
len=*buff;
buff++; //goto BDxAL
al+=*buff;

So when i go back to upper part, i found that:

//following functions standard part of CCS PIC USB driver, and used by usb.c
void usb_init();
int1 usb_put_packet(int endpoint, int * ptr, int len, PID_TOGGLE tgl);
int8 usb_get_packet(int8 endpoint, int8 ptr, int8 max);
void usb_stall_ep(int8 endpoint, int1 direction);
void usb_unstall_ep(int8 endpoint, int1 direction);
int1 usb_endpoint_stalled(int8 endpoint, int1 direction);
void usb_set_address(int8 address);
void usb_set_configured(int config);
void usb_wrongstate();

There is some difference between the:
int8 usb_get_packet(int8 endpoint, int8 ptr, int8 max);

with one have pointer one not. So which should be the correct one?

I'm using version 3.190.

Thanks.
_________________
Best Regards,
taujin