📄 2274lcd.c
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/*
//msp430fe427spi接口程序,驱动SSD1815LCD(串口方式)
//2007.7.4 SPI发送数据至LCD成功.保存文件名:spidebug.c
//2007.7.5 spi 发送字库5*8至LCD成功,保存文件名:spizk.c
//2007.7.15 用FE427SPI发送成功,保存文件名:spi_fe427.c
//2007.7.15 改用FG4619芯片做实验
*/
//#include <msp430xE42x.h>
//#include "msp430xG46x.h"
#include <c:\msp430\zk.h>
#include "msp430x22x4.h"
//
// LCD.res(2)-----------P7.7
// LCD.cs(3)------------P7.6
// LCD.RS(4)------------P7.5
// LCD.clk(17)----------P7.3
// LCD.SDA(18)----------P7.2
//
//函数描述区//
void Init_Port(void);
void res_lcd(void);
void Init_SPI (void);
void rs_command(void);
void rs_data(void);
void CS_Enable(void);
void CS_Disable(void);
void init_lcd(void);
void writeSPI(char RS,char inBuf);
void disp(char sy_num,char x,char y);
void dot(char x,char y);
void sysinit(void);
void opcompinit(void);//光电编码器测试
void dnum(int x);
void init_key(void);
void disp8_16(char sy_num,char zx,char y);
//系统变量定义区
//
int opvalue;//增量型光电编码现场值
unsigned char opset=0;
char dnum_e,dnum_h,dnum_t,dnum_o,dnum_0;
#pragma vector=PORT2_VECTOR
__interrupt void opcomp(void)
{
char p2result;
char result;
p2result=P2IN&3;
switch (p2result)
{
case 0:result=0;P2IES&=~BIT0;P2IES&=~BIT1;break;
case 1:result=1;P2IES|=BIT0;P2IES&=~BIT1;break;
case 2:result=3;P2IES&=~BIT0;P2IES|=BIT1;break;
case 3:result=2;P2IES|=BIT0;P2IES|=BIT1;break;
}
if ((opset>result)||((opset==0)&&(result==3)))
{
opvalue++;
}
if ((opset<result)||((opset==3)&&(result==0)))
{
opvalue--;
}
P2IFG&=~BIT0;
P2IFG&=~BIT1;
if ((opvalue%20)==3)
{
P1OUT ^=BIT0;
}
opset=result;
}
void init_key(void)
{
//将P1口所有的管脚在初始化的时候设置为输入方式
P1DIR = 0;
//将P1口所有的管脚设置为一般I/O口
P1SEL = 0;
// 将P1.4 P1.5 P1.6 P1.7设置为输出方向
P1DIR |= BIT4;
P1DIR |= BIT5;
P1DIR |= BIT6;
P1DIR |= BIT7;
//先输出低电平
P1OUT = 0x00;
// 将中断寄存器清零
P1IE = 0;
P1IES = 0;
P1IFG = 0;
//打开管脚的中断功能
//对应的管脚由高到低电平跳变使相应的标志置位
P1IE |= BIT0;
P1IES |= BIT0;
P1IE |= BIT1;
P1IES |= BIT1;
P1IE |= BIT2;
P1IES |= BIT2;
P1IE |= BIT3;
P1IES |= BIT3;
_EINT();//打开中断
return;
}
void Delay(void)
{
int i;
for(i = 100;i>0;i--) ;//延时一点时间
}
int KeyProcess(void)
{
int nP10,nP11,nP12,nP13;
int nRes = 0;
//P1.4输出低电平
P1OUT &= ~(BIT4);
nP10 = P1IN & BIT0;
if (nP10 == 0) nRes = 13;
nP11 = P1IN & BIT1;
if (nP11 == 0) nRes = 14;
nP12 = P1IN & BIT2;
if (nP12 == 0) nRes = 15;
nP13 = P1IN & BIT3;
if (nP13 == 0) nRes = 16;
//P1.5输出低电平
P1OUT &= ~(BIT4);
nP10 = P1IN & BIT0;
if (nP10 == 0) nRes = 9;
nP11 = P1IN & BIT1;
if (nP11 == 0) nRes = 10;
nP12 = P1IN & BIT2;
if (nP12 == 0) nRes = 11;
nP13 = P1IN & BIT3;
if (nP13 == 0) nRes = 12;
//P1.6输出低电平
P1OUT &= ~(BIT4);
nP10 = P1IN & BIT0;
if (nP10 == 0) nRes = 5;
nP11 = P1IN & BIT1;
if (nP11 == 0) nRes = 6;
nP12 = P1IN & BIT2;
if (nP12 == 0) nRes = 7;
nP13 = P1IN & BIT3;
if (nP13 == 0) nRes = 8;
//P1.7输出低电平
P1OUT &= ~(BIT4);
nP10 = P1IN & BIT0;
if (nP10 == 0) nRes = 1;
nP11 = P1IN & BIT1;
if (nP11 == 0) nRes = 2;
nP12 = P1IN & BIT2;
if (nP12 == 0) nRes = 3;
nP13 = P1IN & BIT3;
if (nP13 == 0) nRes = 4;
P1OUT = 0x00;//恢复以前值。
//读取各个管脚的状态
nP10 = P1IN & BIT0;
nP11 = P1IN & BIT1;
nP12 = P1IN & BIT2;
nP13 = P1IN & BIT3;
for(;;)
{
//if(nP10 == 1 && nP11 == 1 && nP12 == 1 && nP13 == 1)
if ((P1IN&0X0F)==0X0F)
{
//等待松开按键
break;
}
}
// disp8_16(nRes,5,5);
return nRes;
}
// 处理来自端口 1 的中断
#pragma vector=PORT1_VECTOR
__interrupt void p1key(void)
{
int keyresult;
_DINT();
Delay();
keyresult=KeyProcess();
if(P1IFG & BIT0)
{
P1IFG &= ~(BIT0);// 清除中断标志位
}
if(P1IFG & BIT1)
{
P1IFG &= ~(BIT1);// 清除中断标志位
}
if(P1IFG & BIT2)
{
P1IFG &= ~(BIT2);// 清除中断标志位
}
if(P1IFG & BIT3)
{
P1IFG &= ~(BIT3);// 清除中断标志位
}
disp8_16(keyresult+1,5,5);
_EINT();
}
void dnum(int x)
{
dnum_e=x/10000;
dnum_h=(x%10000)/1000;
dnum_t=((x%10000)%1000)/100;
dnum_o=(((x%10000)%1000)%100)/10;
dnum_0=(((x%10000)%1000)%100)%10;
}
void opcompinit(void)
{
//init port
//
P2DIR&=~BIT0;
P2DIR&=~BIT1;
P2IE=0;
P2IES=0;
P2IFG=0;
P2IE|=BIT0+BIT1;
if (P2IN&BIT0)
{
P2IES|=BIT0;
}
else
{
P2IES&=~BIT0;
}
if (P2IN&BIT1)
{
P2IES|=BIT1;
}
else
{
P2IES&=~BIT1;
}
}
void sysinit(void)
{
unsigned int n;
WDTCTL=WDTPW+WDTHOLD; //关看门狗
BCSCTL1 =CALBC1_8MHZ; //设定DCO为1MHZ
DCOCTL =CALBC1_8MHZ;
do{ //等待晶振稳定
IFG1 &=~OFIFG;
for(n=5000;n>0;n--);
}while(OFIFG&IFG1);
}
void line(int x0,int x1,int y)
{
int i;
for (i=x0;i<=x1;i++)
{
dot((char)i,(char)y);
}
}
void dot(char x,char y)
{
char zx0,zx1,zy0,zy1;
char dispdata=0;
zx0=x%16;
zx1=x/16;
zy0=y%8;
zy1=y/8;
writeSPI(0,zx0);
writeSPI(0,(0x10+zx1));
writeSPI(0,0xb0+zy1);
switch(zy0)
{
case 0:
dispdata=BIT0;
break;
case 1:
dispdata=BIT1;
break;
case 2:
dispdata=BIT2;
break;
case 3:
dispdata=BIT3;
break;
case 4:
dispdata=BIT4;
break;
case 5:
dispdata=BIT5;
break;
case 6:
dispdata=BIT6;
break;
case 7:
dispdata=BIT7;
break;
}
writeSPI(1,dispdata);
}
void lcd_cls(void)
{
char i,j;
for(j=0;j<8;j++)
{
writeSPI(0,0x00);
writeSPI(0,0x10);
writeSPI(0,(0xb0+j));
for(i=0;i<128;i++)
{
writeSPI(1,0x00);
}
}
}
void disp(char sy_num,char zx,char y)
{
char k,i,x1,x2;
const char *str;
y%=8;
x1=zx%16;
x2=zx/16;
str=ZK5_8;
str+=5*sy_num;
k=0xb0+y;
writeSPI(0,x1);
writeSPI(0,(0x10+x2));
writeSPI(0,k);
for(i=0;i<5;i++)
{
writeSPI(1,*str);
str++;
}
}
void disp8_16(char sy_num,char zx,char y)
{
const char *str;
char i,j,k;
char x1,x2;
y%=8;
x1=zx%16;
x2=zx/16;
str=ZK5_8;
str=str+16*sy_num;
for(j=0;j<2;j++)
{
k=0xb0+y+j;
writeSPI(0,x1);
writeSPI(0,(0x10+x2));
writeSPI(0,k);
for(i=0;i<8;i++)
{
writeSPI(1,*str);
str++;
}
}
}
void main(void)
{
int i,j;
/////////////////////////////////
// 初始化
//
sysinit();
_DINT();
Init_Port();
Init_SPI();
init_key();
res_lcd();
init_lcd();
lcd_cls();
/* while(1)
{
// if (P2IN&BIT1) i++;
writeSPI(1,0xaa);
}
*/
//
for (i=0;i<16;i++)
{
// disp((i),i,(i));
for (j=0;j<4;j++)
{
disp8_16(4*i+j,8*i,2*j);
}
}
for (i=30000;i>0;i--);
opcompinit();
_EINT();
// P1DIR |=BIT0;
while(1)
{
if (opvalue>=0)
{
dnum(opvalue);disp8_16(0,0,3);
}
else
{
dnum(0-opvalue);
disp8_16(14,0,3);
}
disp8_16(dnum_e+1,8,3);
disp8_16(dnum_h+1,16,3);
disp8_16(dnum_t+1,24,3);
disp8_16(dnum_o+1,32,3);
disp8_16(dnum_0+1,40,3);
}
;
}
void Init_Port(void)
{
//将P1口P2口所有的管脚在初始化的时候设置为输入方式
//
P4DIR |=BIT0+BIT1+BIT2;
return;
}
void Init_SPI (void)
{
//P3.3 CLK P3.2 SOMI P.1 SIMO
//RS P1.1 0 COMMAND 1 DATA
//CS P1.0 0 ENABLE 1 DISABLE
//RES P1.2 0 RESET
P3SEL |=BIT1+BIT2+BIT3; //p3.4为TX,P3.5为RX,P3.0为UCA0CLK
P3DIR |=BIT1;//+BIT3; //P3.4为输出方向
UCB0CTL1 |=UCSSEL0+UCSSEL1; //时钟源选择32768晶振
UCB0CTL0 |=UCMST+UCSYNC+UCCKPL+UCMSB;//;+UCCKPH // //spi主机模式,spi通讯,时钟极性选为高电平无效,选择最高有效位先发
UCB0BR1=0; //32768/1200=27.3
UCB0BR0=20;
//UCB0MCTL=0;
UCB0CTL1 &=~UCSWRST; //进入SPI工作模式
// IE2 |= UCA0RXIE; //使能spi接收中断
// _BIS_SR(GIE); //使能总中断
return;
}
void res_lcd(void)
{
int i;
CS_Enable();
P4OUT&=~(BIT2);
for(i=1000;i>1;i--);
P4OUT|=BIT2;
CS_Disable();
return;
}
void writeSPI(char RS,char inBuf)
{
int n;
CS_Disable();
if (RS==0) rs_command();
else rs_data();
CS_Enable();
while(!(UCB0TXIFG&IFG2));
UCB0TXBUF = inBuf;
// while((UCB0TXIFG&IFG2));
// while((UCB0STAT&UCBBUSY));
for(n=100;n>0;n--);
CS_Disable();
return;
}
void CS_Enable(void)
{
//P1.0输出低电平
P4OUT &=~(BIT0);
return ;
}
void CS_Disable(void)
{
//P1.0输出高电平
P4OUT|=BIT0;
return ;
}
void rs_data(void)
{
P4OUT|=BIT1;
return;
}
void rs_command(void)
{
P4OUT&=~(BIT1);
return;
}
void init_lcd(void)
{
res_lcd();
rs_command();
writeSPI(0,0xe2);
writeSPI(0,0xc8);
writeSPI(0,0x2f);
writeSPI(0,0x23);
writeSPI(0,0xa2);
// writeSPI(0,0x81);
// writeSPI(0,0x0F);
writeSPI(0,0xa9);
writeSPI(0,0x40);
writeSPI(0,0xa6);
writeSPI(0,0xAF);
return;
}
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