target.c

nxp的ARM9处理器LPC3180代码,提供了几乎所有的外设示例程序.

/*****************************************************************************
 *   target.c:  Target C file for Philips LPC310x Family Microprocessors
 *
 *   Copyright(C) 2006, Philips Semiconductor
 *   All rights reserved.
 *
 *   History
 *   2005.10.01  ver 1.00    Prelimnary version, first Release
 *
*****************************************************************************/
#include "LPC318x.h"
#include "type.h"
#include "irq.h"
#include "target.h"

/******************************************************************************
** Function name:		TargetInit
**
** Descriptions:		Initialize the target board; it is called in a necessary 
**				place, change it as needed
**
** parameters:			None
** Returned value:		None
** 
******************************************************************************/
void TargetInit(void)
{
    /* Add your codes here */
    return;
}

/******************************************************************************
** Function name:		GPIOResetInit
**
** Descriptions:		Initialize the target board before running the main() 
**				function; User may change it as needed, but may not 
**				deleted it.
**
** parameters:			None
** Returned value:		None
** 
******************************************************************************/
void GPIOResetInit( void )
{
    return;        
}

/******************************************************************************
** Function name:		TargetResetInit
**
** Descriptions:		Initialize the target board before running the main() 
**				function; User may change it as needed, but may not 
**				deleted it.
**
** parameters:			None
** Returned value:		None
** 
******************************************************************************/
void TargetResetInit(void)
{
    /* Disable all interrupts */
    MIC_ER = 0x0000;
    SIC1_ER = 0x0000;
    SIC2_ER = 0x0000;

    MIC_RSR = 0x0000;
    SIC1_RSR = 0x0000;
    SIC2_RSR = 0x0000;

    /* Set all the clock and power control registers to default value */
    PWR_CTRL = 0x0012;

    if ( SYSCLK_CTRL & 0x01 )     /* PLL397 is used */
    {
	while ( !(PLL397_CTRL & 0x01) );
	SYSCLK_CTRL = 0x0140;
	OSC_CTRL = 0x0000;	/* should not happen if USB is used, otherwise, need */
				/* to switch to main OSC, 13Mhz. */
	HCLKPLL_CTRL = (PLL_P << 11) | (PLL_N << 9) | (PLL_M << 1);	
	HCLKPLL_CTRL |= ((1 << 16) | (1 << 14));    
    }
    else
    {
	SYSCLK_CTRL = 0x0140;

	HCLKPLL_CTRL = (PLL_P << 11) | (PLL_N << 9) | (PLL_M << 1);	
	HCLKPLL_CTRL |= ((1 << 16) | (1 << 14));    
    }

    while ( !(HCLKPLL_CTRL & 0x01 ) );
    HCLKDIV_CTRL = (PERIPH_DIV << 2) | (0x01 << 0);
    PWR_CTRL |= ( 1 << 2 );

    /* Add your codes here */
    GPIOResetInit();
    return;
}

/******************************************************************************
**                            End Of File
******************************************************************************/