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今天是：2025年01月06日（星期一）
2018年01月06日 | c8051f005键盘测试程序
2018-01-06 来源：eefocus
c8051f005键盘测试程序
//-----------------------------------------------------------------------------
// Includes
//-----------------------------------------------------------------------------
#include
#include
#include
//-----------------------------------------------------------------------------
// Function PROTOTYPES
//-----------------------------------------------------------------------------
#define uchar unsigned char
#define uint unsigned int
#define BAUDRATE 115200 // Baud rate of UART in bps
#define SYSCLK 11059200 // SYSCLK Frequency in Hz
void SYSCLK_Init (void);
void delaynus(unsigned int q) ; //N us延时函数
void PORT_Init (void);
void SPI0_Init (void);
void LCD_Init(void);
void SenDSPIByte(unsigned char ch);
void delaynms (unsigned int j);
void writecom(unsigned char com);
void writEDAta(unsigned char d);
void writechar(unsigned char ua);
void Write_COM(uchar ins);
void lcden(datad);
void LCD_set_xy( unsigned char x, unsigned char y );
void LCD_write_string(unsigned char n);
void lcd_key1(void);
void lcd_key2(void);
void lcd_key3(void);
void lcd_key4(void);
void UART0_Init (void);
void presskey(void);
//-----------------------------------------------------------------------------
// Global CONSTANTS
//-----------------------------------------------------------------------------
sbit S3=P1^0;
sbit S4=P1^1;
sbit S5=P1^2;
sbit S6=P1^3;
sbit lcdcs=P3^0;
unsigned char datad ,comd,kk,sdf,ppca;
unsigned char virt_port,v,b,m;
unsigned char lcd_data_count;
unsigned char *lcdpoint;
unsigned char qqq;
unsigned char data8;
unsigned int i;
//-----------------------------------------------------------------------------
// MAIN Routine
//-----------------------------------------------------------------------------
void main(void){
WDTCN = 0xde; // dISAble watchdog timer
WDTCN = 0xad;
SYSCLK_Init ();
PORT_Init ();
UART0_Init() ; // initialize crossbar and GPIO
SPI0_Init ();
LCD_Init() ;
delaynms (20);
delaynus (100);
LCD_set_xy(0X00,0);
delaynus (200);
presskey();
delaynus (200);
LCD_write_string(16);
delaynus (200);
while(1)
{
if(S3==0)
{
Write_COM(0X01);
delaynms (200);
LCD_set_xy(0X00,0);
delaynus (200);
lcd_key1();
delaynus (200);
LCD_write_string(6);
delaynus (200);
}
else if(S4==0)
{
Write_COM(0X01);
delaynms (200);
LCD_set_xy(0X00,0);
delaynus (200);
lcd_key2();
delaynus (200);
LCD_write_string(6);
delaynus (200);
}
else if(S5==0)
{
Write_COM(0X01);
delaynms (200);
LCD_set_xy(0X00,0);
delaynus (200);
lcd_key3();
delaynus (200);
LCD_write_string(6);
delaynus (200);
}
else if(S6==0)
{
Write_COM(0X01);
delaynms (200);
LCD_set_xy(0X00,0);
delaynus (200);
lcd_key4();
delaynus (200);
LCD_write_string(6);
delaynus (200);
}
else
{
}
}
}
//-----------------------------------------------------------------------------
// Initialization Subroutines
//-----------------------------------------------------------------------------
//-----------------------------------------------------------------------------
// PORT_Init
//-----------------------------------------------------------------------------
void PORT_Init (void)
{
XBR0 = 0x27; // XBAR0: Initial Reset Value
XBR1 = 0x00; // XBAR1: Initial Reset Value
XBR2 = 0x5c; // XBAR2: Initial Reset Value
PRT0CF = 0x14; // Output configuration for P0
PRT1CF = 0x10; // Output configuration for P3
PRT3CF = 0x01; // Output configuration for P3
}
//-----------------------------------------------------------------------------
// SYSCLK_Init
//-----------------------------------------------------------------------------
void SYSCLK_Init (void)
{
OSCXCN = 0x67; // start external oscillator with
for (i=0; i < 256; i++) ; // XTLVLD blanking interval (>1ms)
while (!(OSCXCN & 0x80)) ; // Wait for crystal osc. to settle
OSCICN = 0x88; // select external oscillator as SYSCLK
}
//-----------------------------------------------------------------------------
// SPI0_Init
//-----------------------------------------------------------------------------
void SPI0_Init (void)
{
SPI0CFG = 0x07; // data sampLED on 1st SCK rising edge
SPI0CFG|=0xC0; //CKPOL =1;
SPI0CN = 0x03; // Master mode; SPI enabled; flags
SPI0CKR = SYSCLK/2/2000000-1; // SPI cLOCk <= 8MHz (limited by
// EEPROM spec.)
}
//-----------------------------------------------------------------------------
// UART0_Init
//-----------------------------------------------------------------------------
void UART0_Init (void)
{
SCON = 0x50; // SCON: mode 1, 8-bit UART, enable RX
TMOD = 0x20; // TMOD: timer 1, mode 2, 8-bit reload
TH1 = -(SYSCLK/BAUDRATE/16); // set Timer1 reload value for baudrate
TR1 = 1; // start Timer1
CKCON |= 0x10; // Timer1 uses SYSCLK as time base
PCON |= 0x80; // SMOD = 1
TI = 1; // InDICate TX ready
}
//-----------------------------------------------------------------------------
// LCD_Init
//-----------------------------------------------------------------------------
void LCD_Init(void) //向LCD送命令
{
// unsigned int xdata x;
delaynms(100);
datad=0x00;
SendSPIByte(datad);
delaynms(10);
Write_COM(0x30);
delaynms(10);
Write_COM(0x30);
delaynms(10);
Write_COM(0x30);
delaynms(10) ;
Write_COM(0x28);
delaynms(100);
virt_port=0;
SendSPIByte(virt_port);
lcden(virt_port);
Write_COM(0x01);
delaynms(100);
Write_COM(0x06);
delaynms(10) ;
Write_COM(0x0C);
delaynms(500) ;
}
//-----------------------------------------------------------------------------
// SendSPIByte
//-----------------------------------------------------------------------------
void SendSPIByte(unsigned char ch)
{ lcdcs=1;
delaynus(100);
SPIF = 0;
SPI0DAT = ch;
while (SPIF == 0);
delaynus(100);
lcdcs=0;
delaynus(100);
_nop_(); // 等待写结束
}
//-----------------------------------------------------------------------------
// lcden
//-----------------------------------------------------------------------------
void lcden(datad)
{
datad|=0x08;
SendSPIByte(datad);
datad&=0xf7;
SendSPIByte(datad);
}
//-----------------------------------------------------------------------------
// delaynms
//-----------------------------------------------------------------------------
void delaynms (unsigned int uu)
{
unsigned int oo,ll;
for (oo=0;oo
for(ll=0;ll<1140;ll++);
}
}
//-----------------------------------------------------------------------------
// writechar
//-----------------------------------------------------------------------------
void writechar(unsigned char ua)
{
uint j;
uchar t,x;
for(j=0;j<500;j++);
datad|=0x02;
SendSPIByte(datad);
datad|=ua&0xf0;
SendSPIByte(datad);
datad|=0x08;
SendSPIByte(datad);
for(x=0;x<3;x++);
datad&=0xf7;
SendSPIByte(datad);
for(x=0;x<3;x++);
datad&=0x07;
delaynus(100);
SendSPIByte(virt_port);
t|=ua&0x0f;
datad|=t<<4;
SendSPIByte(datad);
for(x=0;x<3;x++);
datad|=0x08;
SendSPIByte(datad);
for(x=0;x<3;x++);
datad&=0xf7;
SendSPIByte(datad);
for(x=0;x<3;x++);
datad=0x00;
t=0x00;
SendSPIByte(datad);
}
//-----------------------------------------------------------------------------
// Write_COM
//-----------------------------------------------------------------------------
void Write_COM(uchar ins)
{
uchar t;
uint j;
for(j=0;j<5000;j++); //用延时代替查询
virt_port|=ins&0xf0;
SendSPIByte(virt_port);
//LCDE=1;
virt_port|=0x08;
SendSPIByte(virt_port);
for(i=3;i>0;i--);
//LCDE=0;
virt_port&=~0x08;
SendSPIByte(virt_port);
virt_port&=0x07;
SendSPIByte(virt_port);
t=ins<<4;
virt_port|=t&0xf0;
SendSPIByte(virt_port);
//LCDE=1;
virt_port|=0x08;
SendSPIByte(virt_port);
for(i=3;i>0;i--);
//LCDE=0;
virt_port&=~0x08;
SendSPIByte(virt_port);
virt_port=0;
SendSPIByte(virt_port);
}
//-----------------------------------------------------------------------------
// LCD_set_xy
//-----------------------------------------------------------------------------
void LCD_set_xy( unsigned char x, unsigned char y )
{
unsigned char address;
if (y == 0) address = 0x80 + x;
else
address = 0xc0 + x;
Write_COM(address);
}
//-----------------------------------------------------------------------------
// LCD_write_string
//-----------------------------------------------------------------------------
void LCD_write_string(unsigned char n)
{
unsigned char data1;
for(n;n>0;n--)
{
data1=*lcdpoint;
writechar(data1);
delaynms(100);
lcdpoint++;
delaynus(10);
}
}
//-----------------------------------------------------------------------------
// presskey
//-----------------------------------------------------------------------------
void presskey(void)
{
unsigned char xdata DDCdata[16]={0x50,0x4c,0x45,0x41,0x53,0x45,0x20,0x50,0x52,0x45,0x53,0x53,0x20,0x4b,0x45,0x59};
lcdpoint=&DDCdata;
}
//-----------------------------------------------------------------------------
// lcd_key1
//-----------------------------------------------------------------------------
void lcd_key1(void)
{
unsigned char xdata key1ok[6]={0x53,0x33,0x20,0x4f,0x4b,0x21};
lcdpoint=&key1ok;
}
//-----------------------------------------------------------------------------
// lcd_key2
//-----------------------------------------------------------------------------
void lcd_key2(void)
{
unsigned char xdata key2ok[6]={0x53,0x34,0x20,0x4f,0x4b,0x21};
lcdpoint=&key2ok;
}
//-----------------------------------------------------------------------------
// lcd_key3
//-----------------------------------------------------------------------------
void lcd_key3(void)
{
unsigned char xdata key3ok[6]={0x53,0x35,0x20,0x4f,0x4b,0x21};
lcdpoint=&key3ok;
}
//-----------------------------------------------------------------------------
// lcd_key4
//-----------------------------------------------------------------------------
void lcd_key4(void)
{
unsigned char xdata key4ok[6]={0x53,0x36,0x20,0x4f,0x4b,0x21};
lcdpoint=&key4ok;
}
//-----------------------------------------------------------------------------
// delaynus
//-----------------------------------------------------------------------------
void delaynus(unsigned int q) //N us延时函数
{
for (i=0;i
_nop_();
}
}
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