📄 s0029701(lm320240c_80mode_example).c
字号:
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0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF};
//-----------------------------------
// Delay Routine
//-----------------------------------
void delayms(uint m) // 12MHz Xtal, close to ms value
{
uint j;
uint i;
for(i=0; i<m; i++)
for(j=0; j<109; j++)
_nop_();
}
//-----------------------------------
// IO Routine
//-----------------------------------
void SdCmd(uchar Command) //send command
{
_WR = 1; // init all control signal
_RD = 1;
A0 = 1; // for command
LCDBUS = Command;
_CS = 0; // enable the access
_nop_();
_WR = 0;
_nop_();
_nop_();
_WR = 1;
_nop_();
_CS = 1; // disable the access
delayms(1);
}
void SdData(uchar DData) //send display data
{
_WR = 1; // init all control signal
_RD = 1;
A0 = 0; // for diaplay data
LCDBUS = DData;
_CS = 0; // enable the access
_nop_();
_WR = 0;
_nop_();
_nop_();
_WR = 1;
_nop_();
_CS = 1; // disable the access
_nop_();
_nop_();
}
//-----------------------------------
// Init LCD module
//-----------------------------------
void initLCDM(void)
{
_RES = 1; // reset pin
_RES = 0;
delayms(5);
_RES = 1;
delayms(10);
SdCmd(0x40); //System set (8 byte parameter)
SdData(0x30); // IV=1(no line comp),ws=0(single drv),M2=0(8bit char height),M0=0(int CGROM), D4=1(by default)
SdData(0x87); // MOD=1 two frame AC drv, HorChar Size=8
SdData(0x07); // VerChar Size=8
SdData(0x28); // (320/8=40) char per line
SdData(0x47); // 23+blanking (frame freq = 66Hz (clk ratio=1/4 @ 10MHz)
SdData(0xEF); // (240-1=239) line per screen
SdData(0x28); // Virtual screen width LSB
SdData(0x00); // Virtual screen width MSB
SdCmd(0x59); // Display ON/OFF(1 byte parameter)
SdData(0x04); // SAD1=on, cursor=off
SdCmd(0x44); //Scroll (10 byte parmeter)
SdData(0x00); // SAD1 start ADD LSB
SdData(0x00); // SAD1 start ADD MSB
SdData(0xEF); // SAD1 block size(no.of line-1)
SdData(0x00); // SAD2 start ADD LSB
SdData(0x00); // SAD2 start ADD MSB
SdData(0xEF); // SAD2 block size(no.of line-1)
SdData(0x00); // SAD3 start ADD LSB
SdData(0x00); // SAD3 start ADD MSB
SdData(0x00); // SAD4 start ADD LSB
SdData(0x00); // SAD4 start ADD MSB
SdCmd(0x5D); //CSRFORM (2 byte parmeter)
SdData(0x07); // cursor width = 8
SdData(0x17); // CM=1, for graphic mode, cursor height = 8
SdCmd(0x4C); // CSRDIR (0 byte parmeter) to the right side
SdCmd(0x5B); // OVLAY (1 byte parmeter)
SdData(0x05); // 0v=0(2layer),DM1=0(blk3 for text),DM0=1(blk1 for graphic),layers combine=01(XOR)
SdCmd(0x5A); // HDOT SCR (1 byte parmeter)
SdData(0x00); // no scroll
SdCmd(0x60); // GRAYSCALE (1 byte parmeter)
SdData(0x00); // 1bpp
}
//-----图画写入子程序-----------------------------------
void ShowBMP(uint x,y,width,high,uchar bmp[])
// 坐标(x,y)，x为水平方向字节数；y为垂直方向像素行数
//width：图形水平字节数；high：图形垂直像素点数；bmp[]：图形数组名
{
uchar i,j;
uint addr,k=0; // 第一显示区域为图形属性
addr=y*0x28+x+0x0000; // 计算显示RAM地址
for(i=0;i<high;i++) // 写入行循环量
{
SdCmd(0x46); // 设置图形显示首地址
SdData(addr);
SdData(addr>>8);
SdCmd(0x4c); // 设置地址水平加1
SdCmd(0x42); // 写数据指令
for(j=0;j<width;j++) // 写入数据个数/行
{
SdData(bmp[k]); // 写入图形数据
k=k+1;
}
addr=addr+0x28; // 地址修正
}
}
//-----------------------------------
// Main Program
//-----------------------------------
void main()
{
SP=0x60;
EA = 0; // disable interrupts
_RES = 1;
_CS = 1;
_RD = 1;
_WR = 1;
A0 = 1;
LCDBUS = 0xff; // pull up data bus
initLCDM();
ShowBMP(0,0,40,240,LCMLogo);
while(1)
{
}
}
//end of program⌨️ 快捷键说明
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