Exemplo n.º 1
0
/////////////////read data parameter
uchar LCD_DataRead(void)
{
	//8080 mode
	  uchar Data;
          TRISC = 0xFF;

	  WR = 1;
	  LCD_CS = 0;
	  RS = 0;
	  RD = 0;   Delay1us(1);
	  Data = PORTC;
	  RD = 1;
	  LCD_CS = 1;
	  RS = 1;
          TRISC = 0x00;
	  return Data;
	/*
//6800 mode
	  uchar reg_rddata;
	  DATA_BUS = 0xff;
	  cs =0; // chip enable.
	  wr = 1; //
	  rs = 0; //
	  rd = 1; // rd = 0;
	  reg_rddata = DATA_BUS;
	  ;
	  ;
	  rd = 0; // rd = 1;
	  cs =1; // chip disable.
	  return(reg_rddata);
	  	*/
}
Exemplo n.º 2
0
uint8_t LCD1602_WaitBusy()
{
	uint16_t timeout=0;
	
	Delay2ms();

	LCD1602_RS_L;
	LCD1602_RW_H;
	Delay100us();
	LCD1602_EN_H;
	
	while(LCD1602_DB7_READ)//缁涘绶�602鏉╂柨娲栨担搴f暩楠烇拷
	{
		timeout++;
		Delay1us();
		if(timeout>200)
		{
			LCD1602_EN_L;
			return 1;//Still Busy
		}
	}	
	LCD1602_EN_L;

return 0;
}
Exemplo n.º 3
0
void __ISR(_EXTERNAL_4_IRQ, ipl1) INT1_ISR(void){
	if(INT_PIN){
		mINT4SetEdgeMode(0);
		if (DIR_PIN)
			current++;
		else
			current--;
	}else{
		mINT4SetEdgeMode(1);
		if (!DIR_PIN)
			current++;
		else
			current--;
	}
	Delay1us(3);//debounce
	mINT4ClearIntFlag();
}
Exemplo n.º 4
0
///////////write data or parameter
void LCD_DataWrite(unsigned char Data)
{//8080 mode
	  RD = 1;
	  LCD_CS = 0;
	  RS = 0;
	  LATC = Data;
	  WR = 0;   Delay1us(1);
	  WR = 1;
	  LCD_CS = 1;
	  LATC = 0xff;
	  RS = 1;
	  /*
//6800 mode
	  cs =0; // chip enable.
	  wr = 0; //
	  rs = 1; // rs = 0;
	  DATA_BUS = Data;
	  rd = 0; //
	  ;
	  ;
	  rd = 0; //
	  cs =1; // chip disable
	*/
}
Exemplo n.º 5
0
void LCD_CmdWrite(unsigned char Cmd)
{//8080 mode
	  RD = 1;
	  LCD_CS = 0;
	  RS = 1;
	  LATC = Cmd;
	  WR = 0;   Delay1us(1);
	  WR = 1;
	  LCD_CS = 1;
	  LATC = 0xff;
	  RS = 0;
	  /*
//6800 mode
	  cs =0; // chip enable.
	  wr = 0; //
	  rs = 1; // rs = 0;
	  DATA_BUS = Cmd;
	  rd = 1; //
	  ;
	  ;
	  rd = 0; //
	  cs =1; // chip disable.
	*/
}
Exemplo n.º 6
0
uint8_t SPITransceve(uint8_t b){
    SpiChnPutC(2, b);		// send data on the master channel, SPI1
    Delay1us(10);
    return SpiChnGetC(2);	// get the received data
}