有谁用过LCD控制芯片S6B0724没，写个驱动，液晶一点反应都没有，调了好几天了，不知道错在哪里。高手们帮帮忙看看，单片机用的是PIC16F873,4M晶振，用的是8080的时序。
void LCD_WriteCmd(int8 cmd)
{
output_low(PIN_B2); //A0=0
output_high(PIN_B4); //R=1
//*(0x07)=cmd;
output_c(cmd);
#asm
NOP
NOP
NOP
#endasm
output_low(PIN_B3); //WR=0
output_high(PIN_B3); //WR=1
}
void LCD_WriteDat(int8 dat)
{
output_high(PIN_B2); //A0=1
output_high(PIN_B4); //R=1
//*(0x07)=dat;
output_c(dat);
#asm
NOP
NOP
NOP
#endasm
output_low(PIN_B3); //WR=0
output_high(PIN_B3); //WR=1
}
int8 LCD_ReadStatus()
{
int8 dat;
set_tris_c(0xff);
output_low(PIN_B2); //A0=0
output_high(PIN_B3); //WR=1
output_low(PIN_B4); //R=0
#asm
NOP
NOP
NOP
#endasm
dat=input_c();
output_high(PIN_B4); //R=1
set_tris_c(0x00);
return dat;
}
void LCD_Init()
{
output_low(PIN_B6); //8080
output_low(PIN_B5); //CS1=0;
//液晶复位
output_low(PIN_B1);
delay_ms(10);
output_high(PIN_B1);
delay_us(1);
//ADC select seg0-seg131
LCD_WriteCmd(0xa0);
//SHL select com0-com64
LCD_WriteCmd(0xc8);
//LCD Bias select
LCD_WriteCmd(0xa2);
//Voltage Converter ON //Voltage Regulator ON //Voltage Follower ON
LCD_WriteCmd(0x2c);
delay_ms(2);
LCD_WriteCmd(0x2a);
delay_ms(2);
LCD_WriteCmd(0x29);
delay_ms(2);
LCD_WriteCmd(0x81);
LCD_WriteCmd(0x27);
LCD_WriteCmd(0x40);
LCD_WriteCmd(0xaf);
}
void main()
{
int8 i=0;
set_tris_a(0xff);
set_tris_b(0x01);
set_tris_c(0x00);
port_b_pullups(0xff);
LCD_Init();
i=LCD_ReadStatus();
putc(i); //串口输出状态
LCD_WriteCmd(0xb0); //setpage
LCD_WriteCmd(0x00);
LCD_WriteCmd(0x10);
for(i=0;i<=50;i++)
{
LCD_WriteDat(0xff);
}
for(i=51;i<=100;i++)
{
LCD_WriteDat(0x00);
}
LCD_WriteCmd(0xb1); //setpage
LCD_WriteCmd(0x10);
LCD_WriteCmd(0x0a);
for(i=0;i<=50;i++)
{
LCD_WriteDat(0xff);
}
for(i=51;i<=100;i++)
{
LCD_WriteDat(0x00);
}
while(1);
} |
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