msp430+2553+ht1621b显示闪烁问题

junggle 2013-8-18 15:39 楼主

请问怎么解决ht1621b显示闪烁，不清楚的问题？

回复评论（6）

沙发 cat3902982

1.HT1621电压稳定；
2.2553刷HT1621的时候,不要刷的太快!它内部带缓存的.
3.看看你的初始化,有没有问题!对比度的设置。

点赞 2013-8-18 17:26

板凳 junggle

回复沙发cat3902982 的帖子

下面是我根据例程自己修改的一段代码，我显示的位数不同，1621闪烁的频率还不一样。
麻烦大神了、、、、

//-----------------------------------------------------------------------------------------
// msp430g2553 ht1621_lcd test
//-----------------------------------------------------------------------------------------
#include "msp430g2553.h"
#include
#define uint unsigned int
#define uchar unsigned char
#define BIAS 0x52 //0b1000 0101 0010 1/3duty 4com
#define SYSDIS 0X00 //0b1000 0000 0000 关振系统荡器和LCD偏压发生器
#define SYSEN 0X02 //0b1000 0000 0010 打开系统振荡器
#define LCDOFF 0X04 //0b1000 0000 0100 关LCD偏压
#define LCDON 0X06 //0b1000 0000 0110 打开LCD偏压
#define XTAL 0x28 //0b1000 0010 1000 外部接时钟
#define RC256 0X30 //0b1000 0011 0000 内部时钟
#define TONEON 0X12 //0b1000 0001 0010 打开声音输出
#define TONEOFF 0X10 //0b1000 0001 0000 关闭声音输出
#define WDTDIS1 0X0A //0b1000 0000 1010 禁止看门狗
////////////////////////////////////////////////////////////////////////////////
void Ht1621_GND_0() { P1OUT &= ~0x10;} // define P1.4 ---> GND_power
void Ht1621_GND_1() { P1OUT |= 0x10;}
void Ht1621_VCC_0() { P1OUT &= ~0x20;} // define P1.5 ---> VCC_power
void Ht1621_VCC_1() { P1OUT |= 0x20;}
void Ht1621_CS_0() { P2OUT &= ~0x04;} // define P2.2 ---> CS
void Ht1621_CS_1() { P2OUT |= 0x04;}
void Ht1621_WR_0() { P2OUT &= ~0x02;} // define P2.1 ---> WR
void Ht1621_WR_1() { P2OUT |= 0x02;}
void Ht1621_DO_0() { P2OUT &= ~0x01;} // define P2.0 ---> DAT
void Ht1621_DO_1() { P2OUT |= 0x01;}
////////////////////////////////////////////////////////////////////////////////
//-----------------------------------------------------------------------------------------
//函数名称：Delay()
//功能：延时子程序
//-----------------------------------------------------------------------------------------
void Delay(uchar us) //5,7,9
{
while(--us);
}
//-----------------------------------------------------------------------------------------
//函数名称：Delayms()
//-----------------------------------------------------------------------------------------
void Delayms(uint ims)
{
uint i,j;
for(i=0;i
for(j=0;j<65;j++) { Delay(1); }
}
//-----------------------------------------------------------------------------------------
//函数名称：Ht1621Wr_Data()
//-----------------------------------------------------------------------------------------
void Ht1621Wr_Data(uchar Data,uchar cnt)
{
uchar i;
for (i=0;i
{
Ht1621_WR_0();
if((Data & 0x80)==0x80) { Ht1621_DO_1(); }
else { Ht1621_DO_0(); }
Ht1621_WR_1();
Data<<=1;
}
}
//-----------------------------------------------------------------------------------------
//函数名称：void Ht1621WrCmd(uchar Cmd)
//-----------------------------------------------------------------------------------------
void Ht1621WrCmd(uchar Cmd)
{
Ht1621_CS_0(); //CS
Ht1621Wr_Data(0x80,4); //写入命令标志100
Ht1621Wr_Data(Cmd,8); //写入命令数据
Ht1621_CS_1();
}
//-----------------------------------------------------------------------------------------
//函数名称：void Ht1621WrOneData(uchar Addr,uchar Data)
//-----------------------------------------------------------------------------------------
void Ht1621WrOneData(uchar Addr,uchar Data)
{
Ht1621_CS_0();
Ht1621Wr_Data(0xa0,3); //写入数据标志101
Ht1621Wr_Data(Addr<<2,6); //写入地址数据
Ht1621Wr_Data(Data<<4,4); //写入数据
Ht1621_CS_1();
}
//-----------------------------------------------------------------------------------------
//函数名称：void Ht1621WrAllData()
//-----------------------------------------------------------------------------------------
void Ht1621WrAllData(void)
{
uchar i;
Ht1621_CS_0();
Ht1621Wr_Data(0xa0,3); //写入数据标志101
Ht1621Wr_Data(0x00<<2,6); //写入地址数据
for (i=0;i<16;i++) { Ht1621Wr_Data(0x00,8); }
Ht1621_CS_1();
}
//-----------------------------------------------------------------------------------------
//函数名称：void Ht1621_Init(void)
//-----------------------------------------------------------------------------------------
void Ht1621_Init(void)
{
Ht1621_CS_0();
Ht1621_WR_0();
Ht1621_DO_0();
Delay(100); //延时使LCD工作电压稳定
Ht1621WrCmd(BIAS);
Ht1621WrCmd(RC256); //使用内部振荡器
Ht1621WrCmd(SYSDIS);
Ht1621WrCmd(WDTDIS1);
Ht1621WrCmd(SYSEN);
Ht1621WrCmd(LCDON);
}
//-----------------------------------------------------------------------------------------
//函数名称：Initial()
//功能：初始化子程序
//-----------------------------------------------------------------------------------------
void Initial(void)
{
WDTCTL = WDTPW + WDTHOLD; // Stop watchdog timer
P1DIR = 0xFF; // All P1.x outputs
P1OUT = 0; // All P1.x reset
P2DIR = 0xFF; // All P2.x outputs
P2OUT = 0; // All P2.x reset
}
void writep(uchar t)
{
Ht1621WrOneData(7,t);
}
void write1(uchar t)
{
Ht1621WrOneData(1,t);
Ht1621WrOneData(2,t);
}
void write2(uchar t)
{
Ht1621WrOneData(0,t);
Ht1621WrOneData(1,t);
Ht1621WrOneData(3,t);
Ht1621WrOneData(4,t);
Ht1621WrOneData(6,t);
}
void write3(uchar t)
{
Ht1621WrOneData(0,t);
Ht1621WrOneData(1,t);
Ht1621WrOneData(2,t);
Ht1621WrOneData(3,t);
Ht1621WrOneData(6,t);
}
void write6(uchar t)
{
Ht1621WrOneData(0,t);
Ht1621WrOneData(2,t);
Ht1621WrOneData(3,t);
Ht1621WrOneData(4,t);
Ht1621WrOneData(5,t);
Ht1621WrOneData(6,t);
}
void write8(uchar t)
{
Ht1621WrOneData(0,t);
Ht1621WrOneData(1,t);
Ht1621WrOneData(2,t);
Ht1621WrOneData(3,t);
Ht1621WrOneData(4,t);
Ht1621WrOneData(5,t);
Ht1621WrOneData(6,t);
}
//-----------------------------------------------------------------------------------------
//函数名称：main()
//-----------------------------------------------------------------------------------------
void main(void)
{
uchar i,j,t,x,y,z;
Initial(); //初始化子程序
Ht1621_GND_0(); //HT1621 power on
Ht1621_VCC_1();
Ht1621_Init(); //上电初始化LCD
Delay(100
); //延时一段时间
Ht1621WrAllData();
while(1)
{
Ht1621_Init(); //上电初始化LCD
//Delayms(50); //延时一段时间
Ht1621WrAllData();
t=0x08;
write2(t);
t=0x04;
write6(t);
t=0x04;
writep(t);
t=0x02;
write8(t);
t=0x01;
writep(t);
}
}