DSP驱动LCD12864，LCD没反应，求助！！

jonymayor 发表于 2015-5-4 21:36

LCD的D0-D7接DSP的GPIOA0-GPIOA7；CS（GPIOB0）、SID（GPIOB1）、CLK（GPIOB2）、PSB（GPIOB3）、RST（GPIOB4），程序是看到别人的单片机程序，移植过来的，程序见附件，这里也贴出来，如下：
GPIO配置程序：
#include "DSP28_Device.h"

void InitGpio(void)
{
EALLOW;

GpioMuxRegs.GPAMUX.all=0x00;
GpioMuxRegs.GPBMUX.bit.PWM10_GPIOB3=0;
GpioMuxRegs.GPBMUX.bit.PWM10_GPIOB3=0;

GpioMuxRegs.GPADIR.all=0xFF;
GpioMuxRegs.GPBDIR.bit.GPIOB3=1;
GpioMuxRegs.GPBDIR.bit.GPIOB3=1;

EDIS;
}

主程序：

#include "DSP28_Device.h"

#define    RS_CS0 GpioDataRegs.GPBCLEAR.bit.GPIOB0=1 //片选信号RS 模组片选端，高电平有效
#define    RS_CS1 GpioDataRegs.GPBSET.bit.GPIOB0=1
#define    RW_SID0 GpioDataRegs.GPBCLEAR.bit.GPIOB1=1 //串行数据输入端
#define    RW_SID1 GpioDataRegs.GPBSET.bit.GPIOB1=1
#define    EN_CLK0 GpioDataRegs.GPBCLEAR.bit.GPIOB2=1 //串行同步时钟：上升沿时读取SID数据
#define    EN_CLK1 GpioDataRegs.GPBSET.bit.GPIOB2=1
#define    PSB GpioDataRegs.GPBDAT.bit.GPIOB3 //H：8位或4位并口方式；L：串口方式
#define    RST GpioDataRegs.GPBDAT.bit.GPIOB4 //复位端，低电平有效

#define    CSOUT    EALLOW;GpioMuxRegs.GPBDIR.bit.GPIOB0= 1;EDIS//片选信号输出
#define    SIDOUT    EALLOW;GpioMuxRegs.GPBDIR.bit.GPIOB1= 1;EDIS//数据信号输出
#define    CLKOUT EALLOW;GpioMuxRegs.GPBDIR.bit.GPIOB2= 1;EDIS//时钟信号输出
#define    RSTOUT    EALLOW;GpioMuxRegs.GPBDIR.bit.GPIOB4= 1;EDIS//复位信号输出

#define    CSIN       EALLOW;GpioMuxRegs.GPBDIR.bit.GPIOB0= 0;EDIS//片选信号输入
#define    SIDIN       EALLOW;GpioMuxRegs.GPBDIR.bit.GPIOB1= 0;EDIS//数据信号输入
#define    CLKIN    EALLOW;GpioMuxRegs.GPBDIR.bit.GPIOB2= 0;EDIS//时钟信号输入

#define comm0//指令0
#define data 1 //数据1
#define x1 0x80
#define x2 0x88
#define y 0x80

#defineuchar unsigned char /*宏定义*/
#defineuintunsigned int

void delayns(unsigned int ns);
void delayus(unsigned int us);
void WriteLcd(unsigned char st);
void DataComWrite(uchar data_comm,uchar text);
void ChinDisp(uchar*chin);
void clcscreen();
void InitLcd();
void LatDisp(uchar dat1,uchar dat2);
void ImgDisp(uchar*imge);
void ChkBusy();

/*--调入了一幅图像：宽度x高度=128x32 可以使用点阵图形生成器产生数据--*/
uchar tab1[]={
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x07,0xFF,0xFF,0xFF,0x80,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x07,0xFF,0xFF,0xFF,0x80,0x01,0xFF,0xFF,0xFF,0xE0,0x00,0x00,0x00,
0x00,0x00,0x00,0x07,0xFF,0xFF,0xFF,0x80,0x01,0xFF,0xFF,0xFF,0xE0,0x00,0x00,0x00,
0x00,0x00,0x00,0x07,0xFF,0xFF,0xFF,0x80,0x01,0xFF,0xFF,0xFF,0xE0,0x00,0x00,0x00,
0x00,0x00,0x00,0x07,0xFF,0xFF,0xFF,0x80,0x01,0xFF,0xFF,0xFF,0xE0,0x00,0x00,0x00,
0x00,0x00,0x00,0x07,0xFF,0xFF,0xFF,0x80,0x01,0xFF,0xFF,0xFF,0xE0,0x00,0x00,0x00,
0x00,0x00,0x00,0x07,0xFA,0xAB,0xFF,0x80,0x01,0xFF,0xFF,0xFF,0xE0,0x00,0x00,0x00,
0x00,0x00,0x00,0x07,0xFF,0xFE,0xFF,0x80,0x01,0xFF,0xFF,0xFF,0xE0,0x00,0x00,0x00,
0x00,0x00,0x00,0x07,0xEF,0xFF,0xBF,0x80,0x01,0xFF,0xFF,0xFF,0xE0,0x00,0x00,0x00,
0x00,0x00,0x00,0x07,0xFF,0xFF,0xEF,0x80,0x01,0xFF,0xFF,0xFF,0xE0,0x00,0x00,0x00,
0x00,0x00,0x00,0x07,0xBF,0xFF,0xFB,0x80,0x01,0xFF,0xFF,0xFF,0xE0,0x00,0x00,0x00,
0x00,0x00,0x00,0x07,0xFF,0xFF,0xFE,0x80,0x01,0xFF,0xFF,0xFF,0xE0,0x00,0x00,0x00,
0x00,0x00,0x00,0x06,0xFF,0xFF,0xFF,0x80,0x01,0xFF,0xFF,0xFF,0xE0,0x00,0x00,0x00,
0x00,0x00,0x00,0x07,0xFF,0xFF,0xFF,0xC0,0x01,0xFF,0xFF,0xFF,0xE0,0x00,0x00,0x00,
0x00,0x00,0x00,0x07,0xFF,0xFF,0xFF,0xF0,0x01,0xFF,0xFF,0xFF,0xE0,0x00,0x00,0x00,
0x00,0x00,0x00,0x0F,0xFF,0xFF,0xFF,0xFC,0x01,0xFF,0xFF,0xFF,0xE0,0x00,0x00,0x00,
0x00,0x00,0x00,0x1F,0xFF,0xFF,0xFF,0xFF,0x01,0xFF,0xFF,0xFF,0xE0,0x00,0x00,0x00,
0x00,0x00,0x00,0x3F,0xFF,0xFF,0xFF,0xFF,0xC1,0xFF,0xFF,0xFF,0xE0,0x00,0x00,0x00,
0x00,0x00,0x00,0x7F,0xFF,0xFF,0xFF,0xFF,0xF1,0xFF,0xFF,0xFF,0xE0,0x00,0x00,0x00,
0x00,0x00,0x00,0xFF,0xFF,0xFF,0xFF,0xFF,0xFD,0xFF,0xFF,0xFF,0xE0,0x00,0x00,0x00,
0x00,0x00,0x01,0xFD,0xFF,0xFF,0xFF,0xFF,0xFE,0xFF,0xFF,0xFF,0xE0,0x00,0x00,0x00,
0x00,0x00,0x00,0x07,0x7F,0xFF,0xFF,0xFF,0xFF,0xBF,0xFF,0xFF,0xE0,0x00,0x00,0x00,
0x00,0x00,0x00,0x07,0xDF,0xFF,0xFF,0xFF,0xFF,0xEF,0xFF,0xFF,0xE0,0x00,0x00,0x00,
0x00,0x00,0x00,0x07,0xF7,0xFF,0xFF,0xFF,0xFF,0xFB,0xFF,0xFF,0xE0,0x00,0x00,0x00,
0x00,0x00,0x00,0x07,0xFD,0xFF,0xFF,0xFF,0xFF,0xFE,0xFF,0xFF,0xE0,0x00,0x00,0x00,
0x00,0x00,0x00,0x07,0xFF,0x7F,0xFF,0xFF,0xFF,0xFF,0xBF,0xFF,0xE0,0x00,0x00,0x00,
0x00,0x00,0x00,0x07,0xFF,0xDF,0xFF,0xFF,0xFF,0xFF,0xEF,0xFF,0xE0,0x00,0x00,0x00,
0x00,0x00,0x00,0x07,0xFF,0xF7,0xFF,0xFF,0xFF,0xFF,0xFB,0xFF,0xE0,0x00,0x00,0x00,
0x00,0x00,0x00,0x07,0xFF,0xFD,0xFF,0xFF,0xFF,0xFF,0xFE,0xFF,0xE0,0x00,0x00,0x00,
0x00,0x00,0x00,0x07,0xFF,0xFF,0x7F,0xFF,0xFF,0xFF,0xFF,0xBF,0xE0,0x00,0x00,0x00,
0x00,0x00,0x00,0x07,0xFF,0xFF,0xDF,0xFF,0xFF,0xFF,0xFF,0xEF,0xE0,0x00,0x00,0x00,
0x00,0x00,0x00,0x07,0xFF,0xFF,0xF7,0xFF,0xFF,0xFF,0xFF,0xFB,0xE0,0x00,0x00,0x00,
0x00,0x00,0x00,0x07,0xFF,0xFF,0xFD,0xFF,0xFF,0xFF,0xFF,0xFE,0xBF,0x80,0x00,0x00,
0x00,0x00,0x00,0x07,0xFF,0xFF,0xFF,0x7F,0xFF,0xFF,0xFF,0xFF,0xFF,0x00,0x00,0x00,
0x00,0x00,0x00,0x07,0xFF,0xFF,0xFF,0xBF,0xFF,0xFF,0xFF,0xFF,0xFE,0x00,0x00,0x00,
0x00,0x00,0x00,0x07,0xFF,0xFF,0xFF,0x8F,0xFF,0xFF,0xFF,0xFF,0xFC,0x00,0x00,0x00,
0x00,0x00,0x00,0x07,0xFF,0xFF,0xFF,0x83,0xFF,0xFF,0xFF,0xFF,0xF8,0x00,0x00,0x00,
0x00,0x00,0x00,0x07,0xFF,0xFF,0xFF,0x80,0xFF,0xFF,0xFF,0xFF,0xF0,0x00,0x00,0x00,
0x00,0x00,0x00,0x07,0xFF,0xFF,0xFF,0x80,0x3F,0xFF,0xFF,0xFF,0xE0,0x00,0x00,0x00,
0x00,0x00,0x00,0x07,0xFF,0xFF,0xFF,0x80,0x0F,0xFF,0xFF,0xFF,0xE0,0x00,0x00,0x00,
0x00,0x00,0x00,0x07,0xFF,0xFF,0xFF,0x80,0x03,0xFF,0xFF,0xFF,0x60,0x00,0x00,0x00,
0x00,0x00,0x00,0x07,0xFF,0xFF,0xFF,0x80,0x01,0x7F,0xFF,0xFF,0xE0,0x00,0x00,0x00,
0x00,0x00,0x00,0x07,0xFF,0xFF,0xFF,0x80,0x01,0xDF,0xFF,0xFD,0xE0,0x00,0x00,0x00,
0x00,0x00,0x00,0x07,0xFF,0xFF,0xFF,0x80,0x01,0xF7,0xFF,0xFF,0xE0,0x00,0x00,0x00,
0x00,0x00,0x00,0x07,0xFF,0xFF,0xFF,0x80,0x01,0xFD,0xFF,0xF7,0xE0,0x00,0x00,0x00,
0x00,0x00,0x00,0x07,0xFF,0xFF,0xFF,0x80,0x01,0xFF,0x7F,0xFF,0xE0,0x00,0x00,0x00,
0x00,0x00,0x00,0x07,0xFF,0xFF,0xFF,0x80,0x01,0xFF,0xD5,0x5F,0xE0,0x00,0x00,0x00,
0x00,0x00,0x00,0x07,0xFF,0xFF,0xFF,0x80,0x01,0xFF,0xFF,0xFF,0xE0,0x00,0x00,0x00,
0x00,0x00,0x00,0x07,0xFF,0xFF,0xFF,0x80,0x01,0xFF,0xFF,0xFF,0xE0,0x00,0x00,0x00,
0x00,0x00,0x00,0x07,0xFF,0xFF,0xFF,0x80,0x01,0xFF,0xFF,0xFF,0xE0,0x00,0x00,0x00,
0x00,0x00,0x00,0x07,0xFF,0xFF,0xFF,0x80,0x01,0xFF,0xFF,0xFF,0xE0,0x00,0x00,0x00,
0x00,0x00,0x00,0x07,0xFF,0xFF,0xFF,0x80,0x01,0xFF,0xFF,0xFF,0xE0,0x00,0x00,0x00,
0x00,0x00,0x00,0x07,0xFF,0xFF,0xFF,0x80,0x01,0xFF,0xFF,0xFF,0xE0,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00
};

uchar tab2[]={
"尊敬的用户: "
"们的产品! 希望您"
" 欢迎您使用我"
"使用淇?    "
};

/*----------------- 延时函数---------------------*/
void delayns(unsigned int tns)
{
while(tns>0) tns--;

}
void delayus(unsigned int tus)
{int i,j;
for(j=0;j<tus;j++)
   for(i=0;i<100;i++);
}
/*写数据到GPIOA0-GPIOA7*/
void WriteLcd(unsigned char str)
{
GpioDataRegs.GPADAT.all=str&0xFF;
}
/*----------------LCD数据指令写函数---------------------*/
void DataComWrite(uchar data_comm,uchar content)
{
RS_CS0;
RW_SID0;
if(data_comm)
{
   RS_CS1;
RW_SID0;
}
else
   {
   RS_CS0;
RW_SID0;
}
delayns(20);
WriteLcd(content); //comm
EN_CLK1;
delayus(70);
EN_CLK0;
delayus(40);
}

/*----------------显示汉字程序-----------------*/
void ChinDisp(uchar*chn)
{
uchar i,j;
DataComWrite(comm,0x30);
delayus(100);
DataComWrite(comm,0x80);
for (j=0;j<4;j++)
{
for (i=0;i<16;i++)
{
DataComWrite(data,chn);
delayus(10);
}
}
}

/*----------------LCD清屏函数-----------------*/
void clcscreen()
{
delayus(200);
DataComWrite(comm,0x30);
delayus(200);
DataComWrite(comm,0x01);
delayus(200);
}

void ChkBusy()
{
DataComWrite(data,0xff);
RS_CS0;
RW_SID1;
EN_CLK1;
while(GpioDataRegs.GPADAT.bit.GPIOA7==1);
EN_CLK0;
}
/*----------------LCD初始化函数-----------------*/
void InitLcd()
{ CSOUT;
SIDOUT;
CLKOUT;
RSTOUT;
PSB=1;
RST=0;
delayus(1000);
RST=1;
delayus(50000);
DataComWrite(comm,0x30);//30---基本指令动作
delayus(500);
DataComWrite(comm,0x30);
delayus(200);
DataComWrite(comm,0x0c);//开显示，关游标
delayus(500);
DataComWrite(comm,0x01); // 清屏，地址指针指向00H
delayus(20000);
DataComWrite(comm,0x06);//光标的移动方向
delayus(20000);

}

/*----------------LCD显示图像函数-----------------*/
void ImgDisp(uchar*img)
{
int i;
int j;
for(j=0;j<32;j++)
{
for(i=0;i<8;i++)
{
   DataComWrite(comm,0x34);
   delayus(200);
   DataComWrite(comm,y+j);
   delayus(200);
   DataComWrite(comm,x1+i);
   delayus(200);
   DataComWrite(comm,0x30);
   delayus(200);
   DataComWrite(data,img);
   delayus(200);
   DataComWrite(data,img);
   delayus(200);
}
}
for(j=32;j<64;j++)
{
for(i=0;i<8;i++)
{
   DataComWrite(comm,0x34);
   delayus(200);
   DataComWrite(comm,y+j-32);
   delayus(200);
   DataComWrite(comm,x2+i);
   delayus(200);
   DataComWrite(comm,0x30);
   delayus(200);
   DataComWrite(data,img);
   delayus(200);
   DataComWrite(data,img);
   delayus(200);
}
}
DataComWrite(comm,0x36);
}

/*----------------显示点阵-----------------*/
void LatDisp(uchar data1,uchar data2)
{
uchar i,j,k,x;
x=x1;
for(k=0;k<2;k++)
{
for(j=0;j<16;j++)
{
   for(i=0;i<8;i++)
   {
   DataComWrite(comm,0x34);
delayus(200);
   DataComWrite(comm,y+j*2);
delayus(200);
   DataComWrite(comm,x+i);
delayus(200);
   DataComWrite(comm,0x30);
delayus(200);
   DataComWrite(data,data1);
delayus(200);
   DataComWrite(data,data1);
delayus(200);
   }
   for(i=0;i<8;i++)
   {
   DataComWrite(comm,0x34);
delayus(200);
   DataComWrite(comm,y+j*2+1);
delayus(200);
   DataComWrite(comm,x+i);
delayus(200);
   DataComWrite(comm,0x30);
delayus(200);
   DataComWrite(data,data2);
delayus(200);
   DataComWrite(data,data2);
delayus(200);
   }
}
x=x2;
}
DataComWrite(comm,0x36);
}

/*----------------主函数-----------------*/
void main(void)
{
/*初始化系统*/
InitSysCtrl();
DINT;
IER = 0x0000;
IFR = 0x0000;
/*初始化PIE*/
InitPieCtrl();

/*初始化PIE中断矢量表*/
InitPieVectTable();
InitGpio();

InitLcd(); //初始化LCD

while(1)
{
clcscreen();             //清屏
delayus(5000);          //延时
ImgDisp(tab1);       //显示图像1，HELLODSP的**
delayus(5000);
LatDisp(0x00,0x00); //清屏，作用等同于clrram（）；
ChinDisp(tab2);       //显示汉字"尊敬的用户，感谢您使用我们的产品，希望您使用愉快！"
delayus(5000);
}
}

就这样了，感觉写的这个和人家单片机的程序是一样的了，为什么还是不能显示啊，有说DSP是一个高速器件，LCD是慢显示器件，我加了很多延时，但是还是不行哒，大神们，求助！！！！LCD1206的驱动程序也一样，，弄死不显示，一起放到附件，各位高手，帮忙看看吧，如果好了，可以发送到我的邮jonymayor@163.com

zhangmangui 发表于 2015-5-4 22:20

背光有没有调合适？

zhangmangui 发表于 2015-5-4 22:22

对LCD配置的时序很重要建议不要通过延时试最好估算一下

zhangmangui 发表于 2015-5-4 22:23

别使用while 一直清屏和显示实时只显示一次

jonymayor 发表于 2015-5-4 22:43

zhangmangui 发表于 2015-5-4 22:20
背光有没有调合适？

背光调了的，而且数据也是写出来了的，单步调试看了，和设计的一样啊

jonymayor 发表于 2015-5-4 22:46

zhangmangui 发表于 2015-5-4 22:23
别使用while 一直清屏和显示实时只显示一次

我把清屏屏蔽了做过，但是也没什么反应啊

zhangmangui 发表于 2015-5-5 21:50

你在多试试吧没条件试

jonymayor 发表于 2015-5-8 20:40

好几天了，没有解决，求2812驱动LCD12864代码，有木有啊

cauhorse 发表于 2015-5-8 22:56

DSP接LCD，电平是不是匹配？驱动能力有没有问题？

jonymayor 发表于 2015-5-9 22:36

cauhorse 发表于 2015-5-8 22:56
DSP接LCD，电平是不是匹配？驱动能力有没有问题？

我确实是直接将GPIO引脚接到LCD，不过我看资料，说3.3V也可以啊。
供电电压是5V，其他接的是GPIO引脚，3.3V电平

cauhorse 发表于 2015-5-9 22:40

jonymayor 发表于 2015-5-9 22:36
我确实是直接将GPIO引脚接到LCD，不过我看资料，说3.3V也可以啊。
供电电压是5V，其他接的是GPIO引脚，3. ...

驱动电流能合乎要求吗？可以拿示波器抓一下波形。
我遇到驱动不了的，最后还是加了缓冲。

jonymayor 发表于 2015-5-9 23:46

cauhorse 发表于 2015-5-9 22:40
驱动电流能合乎要求吗？可以拿示波器抓一下波形。
我遇到驱动不了的，最后还是加了缓冲。 ...

电流没有测，不过单步调试，发送的数据是对的，时序也没有问题，我现在觉得问题要么是没有将数据写入LCD的地址中，要么就是驱动不够，还有一个，也有可能是时序还有我没有注意的地方。

jonymayor 发表于 2015-5-11 20:53

问题已经解决，时序有问题，应该好好看看资料说明啊

zhangmangui 发表于 2015-5-11 22:06

jonymayor 发表于 2015-5-11 20:53
问题已经解决，时序有问题，应该好好看看资料说明啊

时序指的是哪方面啊
简单分享一下

jonymayor 发表于 2015-5-13 22:16

zhangmangui 发表于 2015-5-11 22:06
时序指的是哪方面啊
简单分享一下

void DataComWrite(uchar data_comm,uchar content)
{
RS_CS0;
RW_SID1;
EN_CLK0;
if(data_comm)
{
   RS_CS1;
RW_SID0;
}
else
   {
   RS_CS0;
RW_SID0;
}
delayns(25);//Typ:TAS=1500ns
EN_CLK1;
WriteLcd(content); //comm
// EN_CLK1;
delayns(25);//Typ:TPW=1500ns
EN_CLK0;
delayns(200);//Typ:TH=20ns,TC=13000ns
}
就这里，向LCD写入数据总时间有要求，我以前就是延时太长了，这里改了刚好，其他地方都不需要延时。当然，GPIO的配置肯定要正确才行

zhangmangui 发表于 2015-5-13 23:45

jonymayor 发表于 2015-5-13 22:16
void DataComWrite(uchar data_comm,uchar content)
{
RS_CS0;

感谢分享

jxz2015 发表于 2015-5-22 16:26

楼主1602的程序好使了吗？

jiangkeqin_sy 发表于 2016-1-4 15:46

程序时对的，要显示时间太长。大约要4分多钟。把写数据程序的延时改小就可以了

landyjzlai 发表于 2016-1-13 09:05

现在都用OLED了，还有这个呀！

页: [1]

21ic电子技术开发论坛's Archiver

DSP驱动LCD12864，LCD没反应，求助！！