config.h

2007年全国大学生电子设计大赛

/////////////////////////////////////
//  Generated Initialization File  //
/////////////////////////////////////

#include "C8051F120.h"

// Peripheral specific initialization functions,
// Called from the Init_Device() function
void Reset_Sources_Init()
{
    WDTCN     = 0xDE;
    WDTCN     = 0xAD;
}

void Timer_Init()
{
    SFRPAGE   = TMR3_PAGE;
    TMR3CN    = 0x04;
    TMR3CF    = 0x08;
	RCAP3L    = 0x90;
    RCAP3H    = 0xf7;	  //40k			 

    TMR3H     = 0x00;
}


void Port_IO_Init()
{
    // P0.0  -  TX0 (UART0), Push-Pull,  Digital
    // P0.1  -  RX0 (UART0), Push-Pull,  Digital
    // P0.2  -  INT0 (Tmr0), Push-Pull,  Digital
    // P0.3  -  Unassigned,  Push-Pull,  Digital
    // P0.4  -  Unassigned,  Push-Pull,  Digital
    // P0.5  -  Unassigned,  Push-Pull,  Digital
    // P0.6  -  Unassigned,  Push-Pull,  Digital
    // P0.7  -  Unassigned,  Push-Pull,  Digital

    // P1.0  -  Unassigned,  Push-Pull,  Digital
    // P1.1  -  Unassigned,  Push-Pull,  Digital
    // P1.2  -  Unassigned,  Push-Pull,  Digital
    // P1.3  -  Unassigned,  Push-Pull,  Digital
    // P1.4  -  Unassigned,  Push-Pull,  Digital
    // P1.5  -  Unassigned,  Push-Pull,  Digital
    // P1.6  -  Unassigned,  Push-Pull,  Digital
    // P1.7  -  Unassigned,  Push-Pull,  Digital

    // P2.0  -  Unassigned,  Push-Pull,  Digital
    // P2.1  -  Unassigned,  Push-Pull,  Digital
    // P2.2  -  Unassigned,  Push-Pull,  Digital
    // P2.3  -  Unassigned,  Push-Pull,  Digital
    // P2.4  -  Unassigned,  Push-Pull,  Digital
    // P2.5  -  Unassigned,  Push-Pull,  Digital
    // P2.6  -  Unassigned,  Push-Pull,  Digital
    // P2.7  -  Unassigned,  Push-Pull,  Digital

    // P3.0  -  Unassigned,  Push-Pull,  Digital
    // P3.1  -  Unassigned,  Push-Pull,  Digital
    // P3.2  -  Unassigned,  Push-Pull,  Digital
    // P3.3  -  Unassigned,  Push-Pull,  Digital
    // P3.4  -  Unassigned,  Push-Pull,  Digital
    // P3.5  -  Unassigned,  Push-Pull,  Digital
    // P3.6  -  Unassigned,  Push-Pull,  Digital
    // P3.7  -  Unassigned,  Push-Pull,  Digital

    SFRPAGE   = CONFIG_PAGE;
    P0MDOUT   = 0x7F;
    P1MDOUT   = 0xFF;
    P2MDOUT   = 0x00;
    P3MDOUT   = 0x00;
    P4MDOUT   = 0xFF;
    P5MDOUT   = 0x7f;
    P6MDOUT   = 0x00;
    P7MDOUT   = 0xFF;
    XBR0      = 0x04;
    XBR1      = 0x04;
    XBR2      = 0x40;
}

void Oscillator_Init()
{
    int i = 0;
    SFRPAGE   = CONFIG_PAGE;
    OSCXCN    = 0x67;
    for (i = 0; i < 3000; i++);  // Wait 1ms for initialization
    while ((OSCXCN & 0x80) == 0);
    OSCICN    = 0x83;
    PLL0CN    = 0x04;
    CCH0CN    &= ~0x20;
    SFRPAGE   = LEGACY_PAGE;
    FLSCL     = 0xB0;
    SFRPAGE   = CONFIG_PAGE;
    CCH0CN    |= 0x20;
    PLL0CN    |= 0x01;
    PLL0DIV   = 0x01;
    PLL0FLT   = 0x01;
    PLL0MUL   = 0x04;
    for (i = 0; i < 15; i++);  // Wait 5us for initialization
    PLL0CN    |= 0x02;
    while ((PLL0CN & 0x10) == 0);
    CLKSEL    = 0x02;
}

void Interrupts_Init()
{
    IE        = 0x81;
	EIE2      = 0x01;
	IP        = 0x01;
	EIP2      = 0x00;
	IT0       = 1;
}

// Initialization function for device,
// Call Init_Device() from your main program
void Init_Device(void)
{
    Reset_Sources_Init();
    Timer_Init();
	Port_IO_Init();
    Oscillator_Init();
    Interrupts_Init();
}