/****************************************Copyright (c)**************************************************
** Guangzou ZLG-MCU Development Co.,LTD.
** graduate school
** http://www.zlgmcu.com
**
**--------------File Info-------------------------------------------------------------------------------
** File name: target.c
** Last modified Date: 2004-09-17
** Last Version: 1.0
** Descriptions: header file of the specific codes for LPC2100 target boards
** Every project should include a copy of this file, user may modify it as needed
**------------------------------------------------------------------------------------------------------
** Created by: Chenmingji
** Created date: 2004-02-02
** Version: 1.0
** Descriptions: The original version
**
**------------------------------------------------------------------------------------------------------
** Modified by: Chenmingji
** Modified date: 2004-09-17
** Version: 1.01
** Descriptions: Renewed the template, added more compiler supports
**
**------------------------------------------------------------------------------------------------------
** Modified by: daimaobo
** Modified date: 2006-12-20
** Version: 2.00
** Descriptions: Modified for LPC23XX
**
********************************************************************************************************/
#define IN_TARGET
#include "config.h"
/*********************************************************************************************************
** Function name: IRQ_Exception
**
** Descriptions: interrupt exceptional handler , change it as needed
**
** input parameters: None
** Returned value: None
**
** Used global variables: None
** Calling modules: None
**
** Created by: Chenmingji
** Created Date: 2004/02/02
**-------------------------------------------------------------------------------------------------------
** Modified by:
** Modified date:
**------------------------------------------------------------------------------------------------------
********************************************************************************************************/
void __irq IRQ_Exception(void)
{
while(1); // change it to your code 这一句替换为自己的代码
}
/*********************************************************************************************************
** Function name: FIQ_Exception
**
** Descriptions: Fast interrupt exceptional handler , change it as needed
**
** input parameters: None
** Returned value: None
**
** Used global variables: None
** Calling modules: None
**
** Created by: Chenmingji
** Created Date: 2004/02/02
**-------------------------------------------------------------------------------------------------------
** Modified by:
** Modified date:
**------------------------------------------------------------------------------------------------------
********************************************************************************************************/
void FIQ_Exception(void)
{
while(1); // change it to your code 这一句替换为自己的代码
}
/*********************************************************************************************************
** Function name: TargetInit
**
** Descriptions: Initialize the target board; it is called in a necessary place, change it as
** needed
**
** input parameters: None
** Returned value: None
**
** Used global variables: None
** Calling modules: None
**
** Created by: Chenmingji
** Created Date: 2004/02/02
**-------------------------------------------------------------------------------------------------------
** Modified by:
** Modified date:
**------------------------------------------------------------------------------------------------------
********************************************************************************************************/
void TargetInit(void)
{
/* 添加自己的代码 */
/* Add your codes here */
}
/*********************************************************************************************************
** Function name: TargetResetInit
**
** Descriptions: Initialize the target board before running the main() function; User may
** change it as needed, but may not deleted it.
**
** input parameters: None
** Returned value: None
**
** Used global variables: None
** Calling modules: None
**
** Created by: Chenmingji
** Created Date: 2004/02/02
**-------------------------------------------------------------------------------------------------------
** Modified by: zhangrijin
** Modified date: 2007/1/18
** Descriptions: Modified for LPC23XX
**------------------------------------------------------------------------------------------------------
********************************************************************************************************/
void TargetResetInit(void)
{
#ifdef __DEBUG_RAM
MEMMAP = 0x2; // remap
#endif
#ifdef __DEBUG_FLASH
MEMMAP = 0x1; // remap
#endif
#ifdef __IN_CHIP
MEMMAP = 0x1; // remap
#endif
SCS = (SCS & 0x04)|0x20; // Enable the main OSC,,1MHz～20MHz
while((SCS & 0x40) == 0 ); // Wait until main OSC is usable
if ( PLLSTAT & (1 << 25) ) // if the PLL was connected
{
PLLCON = 0x01;
PLLFEED = 0xAA; // disconnect the PLL
PLLFEED = 0x55;
PLLCON = 0x00;
PLLFEED = 0xAA; // disable the PLL
PLLFEED = 0x55;
}
else if ( PLLSTAT & (1 << 24) ) // if the PLL was enabled // 如果PLL已被使能,则先禁止PLL
{
PLLCON = 0x00;
PLLFEED = 0xAA; // disable the PLL
PLLFEED = 0x55;
}
CLKSRCSEL = 0x01; // select main OSC as the PLL clock source
PLLCON = 1; // Enable but disconnect the PLL
PLLCFG = (((PLL_NValue-1) << 16)|(PLL_MValue-1) ); // set the PLLCFG
PLLFEED = 0xAA; // Enable PLL
PLLFEED = 0x55;
while (((PLLSTAT & (1 << 24)) == 0)); // Wait until the PLL is usable
CCLKCFG = (Fcco/Fcclk - 1); // set the CCLKCFG
PLLCON = 3; // connect the PLL
PLLFEED = 0xAA;
PLLFEED = 0x55;
while (((PLLSTAT & (3 << 25))!= (3 << 25))); // Wait until the PLL is connected and locked
#if USE_USB
PCONP |= 0x80000000; // Turn On the USB PCLK
USBCLKCFG = (Fcco/Fusbclk - 1);
#endif
// Set system timers for each component
#if (Fpclk / (Fcclk / 4)) == 1
PCLKSEL0 = 0x00000000; // PCLK is 1/4 CCLK
PCLKSEL1 = 0x00000000;
#else
#if (Fpclk / (Fcclk / 4)) == 2
PCLKSEL0 = 0xAAAAAAAA; // PCLK is 1/2 CCLK
PCLKSEL1 = 0xAAAAAAAA;
#else
PCLKSEL0 = 0x55555555; // PCLK is the same as CCLK
PCLKSEL1 =
