init.c

使用C8051F实现脉搏及血氧饱和度测量 包括均值滤波

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

#include "C8051F020.h"

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

void Timer_Init()
{
    CKCON     = 0x78;
    TCON      = 0x40;
    TMOD      = 0x20;
    TH1       = 0xB8;
    RCAP2L    = 0xFF;
    RCAP2H    = 0x93;
    TL2       = 0xFF;
    TH2       = 0x93;
}

void UART_Init()
{
    SCON0     = 0x50;
}

void ADC_Init()
{
    AMX0SL    = 0x04;
    ADC0CF    = 0x40;
    ADC0CN    = 0x01;
}

void Voltage_Reference_Init()
{
    REF0CN    = 0x03;
}

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

    // P1.0  -  Unassigned,  Open-Drain, Digital
    // P1.1  -  Unassigned,  Open-Drain, Digital
    // P1.2  -  Unassigned,  Open-Drain, Digital
    // P1.3  -  Unassigned,  Open-Drain, Digital
    // P1.4  -  Unassigned,  Open-Drain, Digital
    // P1.5  -  Unassigned,  Open-Drain, Digital
    // P1.6  -  Unassigned,  Open-Drain, Digital
    // P1.7  -  Unassigned,  Open-Drain, Digital

    // P2.0  -  Unassigned,  Open-Drain, Digital
    // P2.1  -  Unassigned,  Open-Drain, Digital
    // P2.2  -  Unassigned,  Open-Drain, Digital
    // P2.3  -  Unassigned,  Open-Drain, Digital
    // P2.4  -  Unassigned,  Open-Drain, Digital
    // P2.5  -  Unassigned,  Open-Drain, Digital
    // P2.6  -  Unassigned,  Open-Drain, Digital
    // P2.7  -  Unassigned,  Open-Drain, Digital

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

    P0MDOUT   = 0x0C;
    P3MDOUT   = 0xC0;
    XBR0      = 0x04;
    XBR2      = 0x40;
}

void Oscillator_Init()
{
    int i = 0;
    OSCXCN    = 0x67;
    for (i = 0; i < 3000; i++);  // Wait 1ms for initialization
    while ((OSCXCN & 0x80) == 0);
    OSCICN    = 0x08;
}

void Interrupts_Init()
{
    IE        = 0xA0;
}

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