bottom.c

C8051F异步串口操作程序

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

#include "C8051F340.h"

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

void Timer_Init()
{
    TCON      = 0x40;  //时钟允许！！波特率发生！！
    TMOD      = 0x20;
    CKCON     = 0x01;
    TH1       = 0x64;  //9600bps
}

void UART_Init()
{
    SCON0     = 0x10; //允许串口接收
}

void Port_IO_Init()
{
    // P0.0  -  Skipped,     Open-Drain, Digital
    // P0.1  -  Skipped,     Open-Drain, Digital
    // P0.2  -  TX1 (UART1), Push-Pull,  Digital
    // P0.3  -  RX1 (UART1), Open-Drain, Digital
    // P0.4  -  TX0 (UART0), Push-Pull,  Digital
    // P0.5  -  RX0 (UART0), Open-Drain, Digital
    // P0.6  -  Unassigned,  Push-Pull,  Digital
    // P0.7  -  Unassigned,  Open-Drain, Digital

    // P1.0  -  Unassigned,  Open-Drain, Digital
    // P1.1  -  Unassigned,  Push-Pull,  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,  Open-Drain, Digital
    // P3.7  -  Unassigned,  Open-Drain, Digital

    P0MDOUT   = 0x54;
    P1MDOUT   = 0x02;
    P0SKIP    = 0x03;
    XBR0      = 0x01;
    XBR1      = 0x40;
    XBR2      = 0x01;
}

void Oscillator_Init()
{
    OSCICN    = 0x83; //12MHz系统时钟
}

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