MC96F8316M芯片低功耗控制程序，工作电流最低1.8uA

//============================================================================== // Project : MC96F8316 Demo Program // Date : 2015.09.22 // Author : Tom Chan(陈春健) // Device : MC96F8316(28SOP) // Voltage : 5V // Frequency : internal 8 MHz RC oscillator // ADC range : 5V (Vdd) // edit tool : Keil uVision4 //============================================================================== //------------------------------------------------------------------------------ // Include file and variable //------------------------------------------------------------------------------ #include <MC96F8316.h> #include <intrins.h> #define uchar unsigned char #define uint unsigned int #define ulong unsigned long #define nop _nop_() #define s(x,y) (x |= (1 << y)) //位置1 #define c(x,y) (x &= ~ (1 << y)) //位置0 #define b(x,y) (x & (1 << y)) //位判断 if(b(x,y)) 判断1 if(b(x,y)==0) 判断0 #define b0(x,y) ((x & (1 << y)) == 0) //位0判断 if(b0(x,y)) 判断0 #define b1(x,y) (x & (1 << y)) //位1判断 if(b1(x,y)) 判断1 //------------------------------------------------------------------------------ // Real Time Clock variable define //------------------------------------------------------------------------------ unsigned char WDT_13s; void MCUInitialSetting() { //uchar i; // System Clock Select & builtin reset level select SCCR = 0x00; // INT RC OSC (fIRC) for system clock OSCCR = 0x20; // internal RC OSC 8MHz nop; nop; nop; LVRCR = 0x01; //LVR 禁止 P0IO = 0xff; //all output P0OD = 0x00; //推换输出 P0PU = 0x00; //无上拉电阻 P0 = 0xff; //输出低电平 P03DB = 0x00; P0FSR = 0x00; //普通I/O P1IO = 0xff; // all output P1OD = 0x00; // 推换输出 P1PU = 0x00; // 无上拉电阻 P1 = 0xff; // 输出低电平 P12DB = 0x00; // P1FSRH = 0x00; // 普通I/O P1FSRL = 0x00; // 普通I/O P2IO = 0xff; // OUTPUT P2OD = 0x00; // 推换输出 P2PU = 0x00; // 无上拉电阻 P2 = 0xff; // 输出低电平 P2FSR = 0x00; // 普通I/O P3IO = 0xff; // P30,31 INPUT ,OTHER OUTPUT P3OD = 0x00; // 输出 P3PU = 0x00; // P30,31 P3 = 0xff; // 输出低电平 P3FSR = 0x00; // 普通I/O EIPOL1 = 0x00; // Ext Int8 falling edge trigger EIPOL2 = 0x00; // Ext 7,8,9不触发 EIPOL0L = 0x00; // Ext Int 3~0 Polarity Register Low EIPOL0H = 0x00; // Ext Int 7~4 Polarity Register High EIFLAG0 = 0x00; // Ext Int Flag Register0 EIFLAG1 = 0x00; // Ext Int Flag Register1 // b7 b6 b5 b4 b3 b2 b1 b0 IE = 0x80; //(EA) - ExG0 - - Ex12 Ex11 Ex10 IE1 = 0x00; // - - - (TX) (RX) I2C Ex6 Ex5 //IE2 = 0x02; // - - ExG1 - T2 (T1) T0 T0V IE3 = 0x00; // - - - BIT WDT (WT) SPI ADC } //------------------------------------------------------------------------------ // task : Timer and Interrupt start //------------------------------------------------------------------------------ void Timer_Start() { // internal RC OSC 8MHz //T0CR = 0x85; // PCS=8MHz/8=1000000Hz( 1us ), Timer 0 enable //T0DR = 0xF9; // 1us x 250 =250us WDTDR = 0xFF; // period 51.2ms*256=13.1S WDTCR = 0x80; // setting WDTCR |= 0x02; // Use WDTRC 5KHz/256分频=51.2ms; 256分频请查看时钟发生器方框图;BIT定时器无效 WDTCR |= 0x20; // Clear Watch-dog timer IE3 |= 0x08; // Enable WDT interrupt } void Process_Power()//进入省电模式之前进行I/O口设置 { P0IO = 0xff; //all output P0OD = 0x00; //推换输出 P0PU = 0x00; //无上拉电阻 P0 = 0xff; //输出 P03DB = 0x00; P0FSR = 0x00; //普通I/O P1IO = 0xff; // all output P1OD = 0x00; // 推换输出 P1PU = 0x00; // 无上拉电阻 P1 = 0xff; // 输出 P12DB = 0x00; // P1FSRH = 0x00; // 普通I/O P1FSRL = 0x00; // 普通I/O P2IO = 0xff; // OUTPUT P2OD = 0x00; // 推换输出 P2PU = 0x00; // 无上拉电阻 P2 = 0xff; // 输出 P2FSR = 0x00; // 普通I/O P3IO = 0xdf; // P35 input; other OUTPUT P3OD = 0x00; // 输出 P3PU = 0x20; // P3 |= 0x5f; // P3FSR = 0x00; // 普通I/O EIPOL1 = 0x02; // Ext10下降沿触发 // b7 b6 b5 b4 b3 b2 b1 b0 IE |= 0x81; //(EA) - ExG0 - - Ex12 Ex11 Ex10 PCON = 0x03; // WDT interrupt Enable, 1.8uA 功耗 nop; nop; nop; nop; nop; nop; } //============================================================================== // Main Program //============================================================================== void main() { MCUInitialSetting(); Timer_Start(); Process_Power(); //------------------------------------------------------------------------------ // main loop //------------------------------------------------------------------------------ while(1) { nop; nop; nop; nop; nop; nop; Process_Power(); } } void Ext10_Int_Handler(void) interrupt 0 //Ext10 { EIFLAG1=0; //　清集中断标志位 P0IO = 0xff; //all output P0OD = 0x00; //推换输出 P0PU = 0x00; //无上拉电阻 P0 = 0x00; //输出低电平 P03DB = 0x00; P0FSR = 0x00; //普通I/O P1IO = 0xff; // all output P1OD = 0x00; // 推换输出 P1PU = 0x00; // 无上拉电阻 P1 = 0x00; // 输出低电平 P12DB = 0x00; // P1FSRH = 0x00; // 普通I/O P1FSRL = 0x00; // 普通I/O P2IO = 0xff; // OUTPUT P2OD = 0x00; // 推换输出 P2PU = 0x00; // 无上拉电阻 P2 = 0x00; // 输出低电平 P2FSR = 0x00; // 普通I/O P3IO = 0xff; // P30,31 INPUT ,OTHER OUTPUT P3OD = 0x00; // 输出 P3PU = 0x00; // P30,31 P3 = 0x00; // 输出低电平 P3FSR = 0x00; // 普通I/O EIPOL1 = 0x00; // Ext10不触发 IE &= 0xfe; } //============================================================================== // task : 1 Sec interval Real Time Clock Interval by Watch Timer // internal WDTRC OSC 5KHz/256分频=51.2ms; 51.2ms*256=13.1S //============================================================================== void INT_WDT() interrupt 21 { // Watch-dog timer interrupt // TODO: add your code here WDT_13s++; WDTCR |= 0x20; // Clear Watch-dog timer nop; nop; nop; P37 = ~P37; } //============================================================================== // Appindix : interrupt vector //============================================================================== //void Ext10_Int_Handler(void) interrupt 0 using 1 //void Ext11_Int_Handl