init.c

好东西与大家分享……关于单片机驱动微型打印机和液晶屏的程序！！已经测试过！绝对没有问题

#include <head.h> // SFR declarations
/*************************************************
 *  VERSION:    1.0,2005.10.27
 *  AUTHOR:     Xiong Xiaojun,BUAA
 *  FUNCTION:   SYSCLK
**************************************************/
void SYSCLK_Init (void)
{
   int i;                              // delay counter
   OSCXCN = 0x67;                      // start external oscillator with
                                       // 14.7456MHz crystal
   for (i=0; i < 255; i++) ;           // XTLVLD blanking interval (>1ms)
   while (!(OSCXCN & 0x80)) ;          // Wait for crystal osc. to settle
   OSCICN = 0x88;                      // select external oscillator as SYSCLK
                                       // source and enable missing clock detector
}
//-----------------------------------------------------------------------------
// PORT_Init
//-----------------------------------------------------------------------------
//
// Configure the Crossbar and GPIO ports
//  P0 PORT
//  0   1   2   3    4    5   6   7
// TX0 RX0 SCK MISO MOSI NSS TX1 RX1

void PORT_Init (void)
{
	// P0.0 = UART TX0        (Push-Pull Output)
	// P0.1 = UART RX0        (Open-Drain Output/Input)
	// P0.2 = SMBus SDA       (Open-Drain Output/Input)
	// P0.3 = SMBus SCL       (Open-Drain Output/Input)
	// P0.4 = T0              (Open-Drain Output/Input)
	// P0.5 = T1              (Open-Drain Output/Input)
	// P0.6 = T4              (Open-Drain Output/Input)
	XBR0 		= 0x05;	// XBAR0: Initial Reset Value
	XBR1 		= 0x0A;	// XBAR1: Initial Reset Value
	XBR2 		= 0x48;	// XBAR2: Initial Reset Value

	P0MDOUT 	= 0x00; // Output configuration for P0 
	P1MDOUT 	= 0xff;
	P2MDOUT 	= 0xff;
	P3MDOUT 	= 0x38;	
	
}

/*************************************************
 *  VERSION:    1.0,2005.10.27
 *  AUTHOR:     Xiong Xiaojun,BUAA
 *  FUNCTION:   Serial initialize
**************************************************/
// SCON
// SM0  SM1  SM2  REN  TB8  RB8  TI  RI
// TCON
// TF1  TR1  TF0  TR0  IE1  IT1  IE0  IT0

// TMOD
// GATE1  C/T  M1  M0  GATE0  C/T  M1  M0
// M1 M0 = 01  16 BIT Timer
// M1 M0 = 10  AutoLoad 8 bit

// T2CON
// TF2 EXF2 RCLK TCLK EXEN2 TR2  C/T2  CP/RL2
void Serial_Init(void)
{
	SCON0 = 0x50;       // Serial Port Control Register
    PCON = 0x00;        // Power Control Register
}
//************1ms定时器的初始化*********************
/*************************************************
 *  VERSION:    1.0,2003.4.14
 *  AUTHOR:     Xiong Xiaojun,BUAA
 *  FUNCTION: 	1ms Timer initialize
**************************************************/
void Timer_Init(void)
{
	CKCON = 0x00;   // Clock Control Register
    TH0 = 0x00;     // Timer 0 High Byte
    TL0 = 0x00;     // Timer 0 Low Byte
    TH1 = 0x00;     // Timer 1 High Byte
    TL1 = 0x00;	    // Timer 1 Low Byte
    TMOD = 0x55;    // Timer Mode Register
    TCON = 0x00;    // Timer Control Register 

    RCAP2H = 0xFF;  // Timer 2 Capture Register High Byte
    RCAP2L = 0xD9;  // Timer 2 Capture Register Low Byte	
    TH2 = 0x00;     // Timer 2 High Byte	
    TL2 = 0x00;     // Timer 2 Low Byte	
    T2CON = 0x34;   // Timer 2 Control Register
		
    TMR3RLL = 0xB0; // Timer 3 Reload Register Low Byte
    TMR3RLH = 0x3C; // Timer 3 Reload Register High Byte
    TMR3H = 0x3C;   // Timer 3 High Byte
    TMR3L = 0xB0;   // Timer 3 Low Byte
    TMR3CN = 0x00;  // Timer 3 Control Register

    RCAP4H = 0x00;  // Timer 4 Capture Register High Byte
    RCAP4L = 0x00;  // Timer 4 Capture Register Low Byte
    TH4 = 0x00;     // Timer 4 High Byte
    TL4 = 0x00;     // Timer 4 Low Byte
    T4CON = 0x08;   // Timer 4 Control Register
}
void AD0_Init(void)
{
	REF0CN = 0x07;	// Reference Control Register
//----------------------------------------------------------------
// ADC Configuration
//----------------------------------------------------------------
	AMX0CF = 0x60;	// AMUX Configuration Register
	AMX0SL = 0x08;	// AMUX Channel Select Register
	ADC0CF = 0x58;	// ADC Configuration Register
	ADC0CN = 0x80;	// ADC Control Register
}
void SMB_Init(void)
{
	SMB0CN 	= 0x44;	// SMBus Control Register
	SMB0ADR = 0x00;	// SMBus Address Register
	SMB0CR 	= 0xc4;	// SMBus Clock Rate Register 100kbps
	EIE1   |= 0x02;        //Extended Interrupt Enable 1
}
/*************************************************
 *  VERSION:    1.0,2003.4.14
 *  AUTHOR:     Xiong Xiaojun,BUAA
 *  FUNCTION:   Parameter initialize
**************************************************/
void Para_Init(void)
{
	TimeCount  		= 0;
	Count      		= 0;
	LED    			= 1;      // led off
	ENABLE 			= 0;      // disable
	ZEROFLAG 		= 1;
	READFLAG 		= 1;
	PRINTFLAG		= 1;
	HumidityCount	= 0;
	HumidityFreq 	= 0;
	TempCount		= 0;
	Readoverflag	= 0;
	StartReadflag 	= 0;
	RWflag 			= I2CREAD; // read
//	RWflag 			= I2CWRITE; // write
	TempValue		= 0;
	JQOverFlag		= 0;
}
void Init(void)
{
	SYSCLK_Init ();
	PORT_Init ();
	Serial_Init();
	Timer_Init();
	AD0_Init();
	Para_Init();
	SMB_Init();
	delay(6000);
	Lcd_Init();
}