Embedded Systems Design with the Atmel AVR Microcontroller Part II
Embedded Systems Design with the Atmel AVR Microcontroller Part II
Embedded Systems Design with the Atmel AVR Microcontroller Part II
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PORTD = PORTD | 0xef; //R/W-=0<br />
PORTD = PORTD & 0xfd; //E=0<br />
PORTD = PORTD & 0xfb; //CS1=0<br />
PORTD = PORTD & 0xf7; //CS2=0<br />
PORTD = PORTD & 0xdf; //RST-=0<br />
delay(10);<br />
PORTD = PORTD & 0x20; //RST-=1;<br />
lcd_select_side(left);<br />
lcd_instruction_write(display_off);<br />
lcd_instruction_write(start_line);<br />
lcd_instruction_write(x_address);<br />
lcd_instruction_write(y_address);<br />
lcd_instruction_write(display_on);<br />
lcd_select_side(right);<br />
lcd_instruction_write(display_off);<br />
lcd_instruction_write(start_line);<br />
lcd_instruction_write(x_address);<br />
lcd_instruction_write(y_address);<br />
lcd_instruction_write(display_on);<br />
cls_lcd();<br />
}<br />
7.4. OUTPUT DEVICES 215<br />
//*************************************************************************<br />
void cls_lcd (void)<br />
{<br />
unsigned char page, column;<br />
for(page=0; page