jhd.c

自己的项目

#include  <h\my.h>


//****************************
extern void delay_155us();
extern void delay_half_1s(int delay_half_1s_time);
extern void delay_8ms(int delay_8ms_time);
//****************************



char bdata temp_ramaddr;
sbit jhd529_bf = temp_ramaddr^7;

char jhd529_addr;

//*********** LCD复位子程序 *****
void jhd529_reset_lcd()
{
   jhd529_reset = 1;  
   jhd529_reset = 0;  
   delay_155us();
   jhd529_reset = 1;        
}//end 
//***********************************

//*********** 通讯模式子程序 *****
void jhd529_communication_mode(int comm_mode)
{
   jhd529_psb = 1;  
   delay_155us();
   if(comm_mode == 1)
      jhd529_psb = 1;   //4/8 bit
   else
      jhd529_psb = 0;   //serial    
}//end 
//***********************************

//*********** 写数据子程序 *****
void jhd529_write_data(char data_data)
{ 
   jhd529_bf = 1;

   jhd529_rs = 0;
   jhd529_rw = 1;  
   while(jhd529_bf)
    { 
      P1 = 0xFF;
      jhd529_e = 1;
      temp_ramaddr = P1;
      jhd529_e = 0;
    }

   jhd529_rs = 1;
   jhd529_rw = 0;
   P1 = data_data;
   jhd529_e = 1;
   jhd529_e = 0;    
}//end func
//*******************************

//*********** 写指令子程序 *****
void jhd529_write_instruction(char data_instruction)
{
   jhd529_bf = 1;

   jhd529_rs = 0;
   jhd529_rw = 1;  
   while(jhd529_bf)
    { 
      P1 = 0xFF;
      jhd529_e = 1;
      temp_ramaddr = P1;
      jhd529_e = 0;
    }

   jhd529_rw = 0;
   P1 = data_instruction;
   jhd529_e = 1;
   jhd529_e = 0;    
}//end func
//*******************************

//************ LCD初始化 ********
void jhd529_initial()
{
   jhd529_communication_mode(1);
   delay_half_1s(1);

   jhd529_write_instruction(0x01);
   delay_155us();

   jhd529_write_instruction(0x30);
   delay_155us();

   jhd529_write_instruction(0x0C);
   delay_155us();

   jhd529_write_instruction(0x01);
   delay_8ms(5);

   jhd529_write_instruction(0x06);
   delay_155us();

}//end func
//********************************