#include "N76E003.h"
#include "Common.h"
#include "Delay.h"
#include "SFR_Macro.h"
#include "Function_define.h"
/***********************************************************************
WDT CONFIG enable
warning : this macro is only when ICP not enable CONFIG WDT function
copy this marco code to you code to enable WDT reset.
************************************************************************/
void Enable_WDT_Reset_Config(void)
{
set_IAPEN;
IAPAL = 0x04;
IAPAH = 0x00; //CONFIG4地址是0004H
IAPFD = 0x0F; //数据写入IAPFD，CONFIG4默认是0XFF（WDTEN[3:0] _ _ _ _），配置字“_”最好不要改变，写入0X0F，WDT在空闲/掉电模式下运行，以超时复位器
IAPCN = 0xE1; //写入命令（IAPB[1:0] POEN PCEN FCTRL[3:0]）,1110 0001,(命令编程CONFIG字节)
set_CFUEN; //使能IAP擦除/编程CONFIG
set_IAPGO; //运行IAP //trigger IAP
while((CHPCON&SET_BIT6)==SET_BIT6); //check IAPFF (CHPCON.6)
clr_CFUEN;//关闭
clr_IAPEN; //一旦开始IAP,HIRC打开，功耗变大，所以一般为了减少功耗在最后一条关闭IAP
}
/************************************************************************************************************
* Main function
************************************************************************************************************/
void main (void)
{
Set_All_GPIO_Quasi_Mode;
clr_GPIO1;
Timer0_Delay1ms(50); //toggle I/O to show MCU Reset
set_GPIO1;
Timer0_Delay1ms(50);
clr_GPIO1;
Timer0_Delay1ms(50);
set_GPIO1;
Timer0_Delay1ms(50);
//----------------------------------------------------------------------------------------------
// WDT Init !!! ENABLE CONFIG WDT FIRST !!!
// Warning:
// Always check CONFIG WDT enable first, CONFIG not enable, SFR can't enable WDT reset
// Please call Enable_WDT_Reset_Config() function to enable CONFIG WDT reset
//----------------------------------------------------------------------------------------------
// Enable_WDT_Reset_Config();
TA=0xAA;TA=0x55;WDCON=0x07; //Setting WDT prescale ，0000 0111,1/256分频
set_WDCLR; //Clear WDT timer
while((WDCON|~SET_BIT6)==0xFF); //confirm WDT clear is ok before into power down mode
EA = 1;
set_WDTR; //WDT run
while(1)
{
clr_GPIO1;
Timer0_Delay1ms(500);
set_GPIO1;
Timer0_Delay1ms(500);
clr_GPIO1;
Timer0_Delay1ms(500);
set_GPIO1;
Timer0_Delay1ms(500);
set_PD;
}
}
这个超时复位定时器的规格书上面说的不需要WDTR和WIDPD，这个用这个WDTR是做上面用的？？？
|
|
楼主
