i m working with arm7s256 interface pc by usb bus.
but i dont connected.
do you can help me?
do you can for me a code to connected with pc by usb bus ?
thanks!
my code:
/*----------------------------------------------------------------------------
* Name: MOUSE.C
* Purpose: USB Mouse Demo
* Version: V1.10
*----------------------------------------------------------------------------
* This file is part of the uVision/ARM development tools.
* Copyright (c) 2005-2006 Keil Software. All rights reserved.
* This software may only be used under the terms of a valid, current,
* end user licence from KEIL for a compatible version of KEIL software
* development tools. Nothing else gives you the right to use it.
*---------------------------------------------------------------------------*/

#include <AT91SAM7S256.H> /* AT91SAM7S256 definitions */

#include "Board.h"

#include "type.h"

#include "usb.h"
#include "usbcfg.h"
#include "usbhw.h"
#include "usbcore.h"

#include "mouse.h"


AT91S_PIO * pPIO = AT91C_BASE_PIOA; /* Global Pointer to PIO */


BYTE MouseInReport[4]; /* Mouse Input Report */
/* Byte0.0: 1st Button (Left) */
/* Byte0.1: 2nd Button (Right) */
/* Byte0.2: 3rd Button */
/* Byte1: Relative X Pos */
/* Byte2: Relative Y Pos */
/* Byte3: Relative Wheel Pos */

/*
* Get Mouse Input Report -> MouseInReport
* Parameters: None
* Return Value: None
*/

void GetMouseInReport (void) {
DWORD key;

key = pPIO->PIO_PDSR; /* Read Pin Data */
if ((key & SW1) != 0) { /* Check if SW1 is not pressed */
switch (key & (SW2)) {
case SW2: /* SW3 pressed & SW2 not pressed */
MouseInReport[1] = +4; /* +X: Right Movement */
break;
default:
MouseInReport[1] = 0; /* No X Movement */
break;
}
MouseInReport[2] = 0; /* No Y Movement */
} else { /* SW1 is pressed */
MouseInReport[1] = 0; /* No X Movement */
switch (key & SW2) {
case SW2: /* SW3 pressed & SW2 not pressed */
MouseInReport[2] = +4; /* +Y: Down Movement */
break;
default:
MouseInReport[2] = 0; /* No Y Movement */
break;
}
}
MouseInReport[3] = 0; /* Wheel not used */
}


/* Main Program */

int main (void) {
DWORD n;

/* Enable Clock for PIO */
AT91C_BASE_PMC->PMC_PCER = (1 << AT91C_ID_PIOA);

pPIO->PIO_PER = LED_MASK; /* Enable PIO for LED1,2 */
pPIO->PIO_OER = LED_MASK; /* LED1,2 are Outputs */
pPIO->PIO_SODR = LED_MASK; /* Turn off LED's ("1") */

USB_Init();
//USB_Configure (TRUE);
//USB_Reset();
/* USB Initialization */
USB_Connect(TRUE); /* USB Connect */

while (1) { /* Loop forever */
GetMouseInReport();
n = pPIO->PIO_PDSR; /* Read Pin Data */
if ((n & SW1) == 0) { /* Check if SW1 is pressed */
pPIO->PIO_CODR = LED1; /* Turn On LED1 */
} else {
pPIO->PIO_SODR = LED1; /* Turn Off LED1 */
}
for (n = 0; n < 100; n++); /* Delay */
}
}