init3.c

Cypress公司Cy7c6xxxx芯片的USB键盘及USB鼠标的firmware代码以及一些example代码。

#pragma option f0 /* remove page breaks from listing file */
/* 
 * CYC Code Development System
 * Tutorial Example
 * INIT3.C
 * This code may be adapted for any purpose
 * when used with the CYC Code Development
 * System.  No warranty is implied or given
 * as to their usability for any purpose.
 * 
 * (c) Copyright 2000 Byte Craft Limited
 * 421 King St.N., Waterloo, ON, Canada, N2J 4E4
 * VOICE: 1 [phone]
 * FAX  : [phone]
 * email: [e-mail]
 * 
 * REVISION HISTORY
 * v1.00 AL 01/2000 Initial Version.
 */
#define __SHOW_LIBRARY /* include library sources in listing file */
#include <dev\c63413.h>
#include <port.h>

                                                                                                          /*_init_*/
#include <startup.h>

/* set PORT0 configuration to CMOS output
   set PORT1 configuration to open drain
   set PORT2 configuration to open drain
   set PORT2 configuration to resistive */
#define GPIO_CONFIG_STARTUP  PORT0_CMOS | PORT1_OPEN | PORT2_OPEN | PORT3_RESISTIVE

#define PORT0_STARTUP 0x00
#define PORT1_STARTUP 0x55
#define PORT2_STARTUP 0xAA
#define PORT3_STARTUP 0x00

void main(void)
{
        while(1) /* loop forever */
        {
                PORT0 = PORT3;
        }
}
                                                                                                          /*_init_*/