先看效果图：
再看部分源码：
头文件以及调试语句请自行修改。
//lcd.h
#ifndef _H_LCD_H_
#define _H_LCD_H_
#include "type.h"
#define CM240_128_DAT_ADDR 0X8000
#define CM240_128_CMD_ADDR 0Xc000
#define LCD_WR_DAT(dat) do{(*(UINT8*)CM240_128_DAT_ADDR)=dat;}while(0)
#define LCD_WR_CMD(cmd) do{(*(UINT8*)CM240_128_CMD_ADDR)=cmd;}while(0)
#define LCD_RD_DAT() (*(UINT8*)CM240_128_DAT_ADDR)
#define LCD_RD_CMD() (*(UINT8*)CM240_128_CMD_ADDR)
#define LCD_CMD_ADD_PT_SET 0X24
#define LCD_CMD_GRAPHIC_ADDR_SET 0X42
#define LCD_CMD_GRAPHIC_AREA_SET 0X43
#define LCD_CMD_MODE_SET_CGRAM 0X88
#define LCD_CMD_DISP_MODE_T_OFF_G_ON 0X98
#define LCD_CMD_DAT_WR_NO_ADP_ACTION 0XC4
#define LCD_CMD_DAT_RD_NO_ADP_ACTION 0XC5
#define LCD_CHECK_TIME_MAX_MS 100
UINT8 LcdWrDat(UINT8 dat);
UINT8 LcdWrCmdByZeroPara(UINT8 cmd);
UINT8 LcdWrCmdByOnePara(UINT8 cmd,UINT8 dat);
UINT8 LcdWrCmdByTwoPara(UINT8 cmd,UINT8 dat1,UINT8 dat2);
UINT8 LcdCheckCmdDatWrRd(void);
UINT8 LcdInit(void);
void LcdTest(void);
#endif
//lcd.cpp
#include "includes.h"
static const prog_uchar wolf[]={//数据比较多,21IC限字数,见链接.
};
UINT8 LcdWrDat(UINT8 dat)
{
if(LcdCheckCmdDatWrRd())
{
LCD_WR_DAT(dat);
return 0xff;
}
else
return 0x00;
}
UINT8 LcdWrCmdByZeroPara(UINT8 cmd)
{
if(LcdCheckCmdDatWrRd())
{
LCD_WR_CMD(cmd);
return 0xff;
}
else
return 0x00;
}
UINT8 LcdWrCmdByOnePara(UINT8 cmd,UINT8 dat)
{
if(LcdCheckCmdDatWrRd())
{
LCD_WR_DAT(dat);
if(LcdCheckCmdDatWrRd())
{
LCD_WR_CMD(cmd);
return 0xff;
}
else
{
return 0x00;
}
}
else
{
return 0x00;
}
}
UINT8 LcdWrCmdByTwoPara(UINT8 cmd,UINT8 dat1,UINT8 dat2)
{
if(LcdCheckCmdDatWrRd())
{
LCD_WR_DAT(dat1);
if(LcdCheckCmdDatWrRd())
{
LCD_WR_DAT(dat2);
if(LcdCheckCmdDatWrRd())
{
LCD_WR_CMD(cmd);
return 0xff;
}
else
{
return 0x00;
}
}
else
{
return 0x00;
}
}
else
{
return 0x00;
}
}
UINT8 LcdCheckCmdDatWrRd(void)
{
static UINT32 ct=0;
while((LCD_RD_CMD()&0x03)!=0x03)
{
wdt_reset();
ct++;
if(ct>(UINT32)(LCD_CHECK_TIME_MAX_MS*1.0/(1000.0/SYSTEM_FREQUENCY_HZ)))
{
ct=0;
return 0x00;
}
}
ct=0;
return 0xff;
}
UINT8 LcdInit(void)
{
if(!LcdWrCmdByTwoPara(0x40, 0x00, 0x00))
return 0x00;
if(!LcdWrCmdByTwoPara(0x41, 0x1e, 0x00))
return 0x00;
if(!LcdWrCmdByTwoPara(LCD_CMD_GRAPHIC_ADDR_SET, 0x00, 0x00))
return 0x00;
if(!LcdWrCmdByTwoPara(LCD_CMD_GRAPHIC_AREA_SET, 0x1e, 0x00))
return 0x00;
if(!LcdWrCmdByZeroPara(0x80))// mode
return 0x00;
if(!LcdWrCmdByZeroPara(0xa4))
return 0x00;
if(!LcdWrCmdByZeroPara(0x98))
return 0x00;
return 0xff;
}
void LcdTest(void)
{
UINT16 i;
if(LcdInit())
{
WriteLog("lcd ok
");
for(i=0;i<30*128;i++)
{
wdt_reset();
if(LcdWrCmdByTwoPara(LCD_CMD_ADD_PT_SET, i, (i)>>8))
{
if(!LcdWrCmdByOnePara(0xc4,pgm_read_byte(i+wolf)))
{
WriteLog("E");
}
}
else
{
WriteLog("e");
}
}
}
else
{
WriteLog("lcd error
");
}
}
相关链接:https://bbs.21ic.com/upfiles/img/200711/200711118145351.rar |
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