initial.c

这个是我设计的采用c8051f330为核心的测温系统源码

#include "initial.h"



// Peripheral specific initialization functions,
// Called from the Init_Device() function
void PCA_Init()//关闭WDT
{
    PCA0MD    &= ~0x40;
    PCA0MD    = 0x00;
}

void Port_IO_Init()
{
    // P0.0  -  SCK  (SPI0), Push-Pull,  Digital
    // P0.1  -  MISO (SPI0), Push-Pull,  Digital
    // P0.2  -  Skipped,     Push-Pull,  Analog
    // P0.3  -  Skipped,     Push-Pull,  Analog
    // P0.4  -  TX0 (UART0), Push-Pull,  Digital
    // P0.5  -  RX0 (UART0), Push-Pull,  Digital
    // P0.6  -  Skipped,     Push-Pull,  Digital
    // P0.7  -  Skipped,     Push-Pull,  Digital

    // P1.0  -  Skipped,     Open-Drain, Digital
    // P1.1  -  MOSI (SPI0), Push-Pull,  Digital
    // P1.2  -  Unassigned,  Push-Pull,  Digital
    // P1.3  -  Skipped,     Push-Pull,  Digital
    // P1.4  -  Skipped,     Push-Pull,  Digital
    // P1.5  -  Unassigned,  Push-Pull,  Digital
    // P1.6  -  Unassigned,  Push-Pull,  Digital
    // P1.7  -  Unassigned,  Push-Pull,  Digital

    P0MDIN    = 0xF3;
    P0MDOUT   = 0xFF;
    P1MDOUT   = 0xFE;
    P0SKIP    = 0xCC;
    P1SKIP    = 0x19;
    XBR0      = 0x03;
    XBR1      = 0xC0;
}



void Oscillator_Init()
{
    int i = 0;
    //OSCICL= 0x2D;//内部25Mhz晶振，8分频
   // i=0SCICN;
    OSCXCN= 0x61;//外部32.768K晶振
    for (i = 0; i < 3000; i++);  // Wait 1ms for initialization
    while ((OSCXCN & 0x80) == 0);//
}

void Timer_Init()
{
    TMOD      = 0x20;
    CKCON     = 0x0B;
    TH1       = 0x61;
}

void UART_Init()
{
    SCON0     = 0x30;
}



void SPI_Init()
{
    SPI0CFG   = 0x70;
    SPI0CN    = 0x01;
}

void Interrupts_Init()
{
    IE        = 0x12;
    IP        = 0x10;
}


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