usb_power_test.c

来自「TI的DM6446的硬件平台搭建的相关例子」· C语言 代码 · 共 37 行

/*
 *  Copyright 2005 by Spectrum Digital Incorporated.
 *  All rights reserved. Property of Spectrum Digital Incorporated.
 *
 *  Not for distribution.
 */

/*
 *  ======== -- ========
 *
 */

#include "davincievm.h"
#include "davincievm_gpio_exp.h"

/* ------------------------------------------------------------------------ *
 *                                                                          *
 *  led_test( )                                                             *
 *                                                                          *
 * ------------------------------------------------------------------------ */
Int16 usb_power_test( )
{
    Int16 retcode = 0;
    Uint16 pattern;

    PINMUX0&=0xffffffea;

    DAVINCIEVM_GPIO_setDirection(23, 0);
 
	retcode |=DAVINCIEVM_GPIO_setOutput(23,1);
	DAVINCIEVM_waitusec(200000);
	retcode |=DAVINCIEVM_GPIO_setOutput(23,0);

    return retcode;
}