ADC.zip_operation

#include <LPC214x.H> /* LPC214x definitions */ #include "lcd.h" #define LCD_BACK_LIGHT_TIMEOUT 1000 #define LCD_BACKLIGHT (1 << 21) #define LCD_BACK_LIGHT_DIR IO1DIR #define LCD_BACK_LIGHT_SET IO1SET #define LCD_BACK_LIGHT_CLR IO1CLR #define LCD_DATA_DIR IO0DIR #define LCD_DATA_SET IO0SET #define LCD_DATA_CLR IO0CLR #define LCD_CTRL_DIR IO1DIR #define LCD_CTRL_SET IO1SET #define LCD_CTRL_CLR IO1CLR #define LCDRS (1 << 24) #define LCDRW (1 << 23) #define LCDEN (1 << 22) #define LCD_D4 (1 << 10) #define LCD_D5 (1 << 11) #define LCD_D6 (1 << 12) #define LCD_D7 (1 << 13) #define LCD_DATA_MASK (LCD_D4 | LCD_D5 | LCD_D6 | LCD_D7) #define LCD_BUSY_FLAG LCD_D7 #define LCD_CONTROL_MASK 0x01C00000 void delay(int count) { int j=0,i=0; for(j=0;j<count;j++) { /* At 60Mhz, the below loop introduces delay of 10 us */ for(i=0;i<35;i++); } } void wait_lcd( void ) { LCD_CTRL_CLR |= LCDRS; LCD_CTRL_SET |= LCDRW |LCDEN; while(IO1PIN & LCD_BUSY_FLAG); /* wait for busy flag to become low */ LCD_CTRL_CLR |= LCDEN | LCDRW; LCD_DATA_DIR |= LCD_DATA_MASK; delay(100); } void lcd_command_write( unsigned char command ) { unsigned char temp=0; unsigned int temp1=0; temp=command; temp=(temp>>4)&0x0F; temp1=(temp<<10)&LCD_DATA_MASK; LCD_CTRL_CLR = LCDRS; LCD_CTRL_SET = LCDEN; LCD_DATA_CLR = LCD_DATA_MASK; LCD_DATA_SET = temp1; delay(10000); LCD_CTRL_CLR = LCDEN; temp=command; temp&=0x0F; temp1=(temp<<10)&LCD_DATA_MASK; delay(100*2); LCD_CTRL_CLR |= LCDRS; LCD_CTRL_SET |= LCDEN; LCD_DATA_CLR = LCD_DATA_MASK; LCD_DATA_SET = temp1; delay(10000); LCD_CTRL_CLR |= LCDEN; wait_lcd(); } void set_lcd_port_output( void ) { LCD_CTRL_DIR |= ( LCDEN | LCDRS | LCDRW ); LCD_CTRL_CLR |= ( LCDEN | LCDRS | LCDRW ); LCD_DATA_DIR |= LCD_DATA_MASK; } void lcd_clear( void) { lcd_command_write( 0x01 ); } int lcd_gotoxy( unsigned int x, unsigned int y) { int retval = 0; if( (x > 1) && (y > 15) ) { retval = -1; } else { if( x == 0 ) { lcd_command_write( 0x80 + y ); /* command - position cursor at 0x00 (0x80 + 0x00 ) */ } else if( x==1 ){ lcd_command_write( 0xC0 + y ); /* command - position cursor at 0x40 (0x80 + 0x00 ) */ } } return retval; } void lcd_data_write( unsigned char data ) { unsigned char temp=0; unsigned int temp1=0; temp=data; temp=(temp>>4)&0x0F; temp1=(temp<<10)&LCD_DATA_MASK; LCD_CTRL_SET |= LCDEN|LCDRS; LCD_DATA_CLR = LCD_DATA_MASK; LCD_DATA_SET = temp1; LCD_CTRL_CLR |= LCDEN; temp=data; temp&=0x0F; temp1=(temp<<10)&LCD_DATA_MASK; LCD_CTRL_SET |= LCDEN|LCDRS; LCD_DATA_CLR = LCD_DATA_MASK; LCD_DATA_SET = temp1; LCD_CTRL_CLR |= LCDEN; wait_lcd(); } void lcd_putchar( int c ) { lcd_data_write( c ); } void lcd_putstring( unsigned char line, char *string ) { unsigned char len = MAX_CHAR_IN_ONE_LINE; lcd_gotoxy( line, 0 ); while(*string != '\0' && len--) { lcd_putchar( *string ); string++; } } void lcd_backlight_on() { LCD_BACK_LIGHT_DIR |= LCD_BACKLIGHT; LCD_BACK_LIGHT_SET |= LCD_BACKLIGHT; } void turn_off_lcd_back_light_cb(void) { LCD_BACK_LIGHT_DIR |= LCD_BACKLIGHT; LCD_BACK_LIGHT_CLR |= LCD_BACKLIGHT; } void init_lcd( void ) { set_lcd_port_output(); delay(100*100); lcd_command_write(0x28); /* (Function Set) 4-bit interface, two line, 5X8 dots. */ lcd_clear() ; /* LCD clear */ lcd_command_write(0x02); /* cursor home */ lcd_command_write(0x06); /* (Entry Mode) Increment, Display Shift off */ lcd_command_write(0x0C) ; /* display on, Cursor & Blink off */ lcd_gotoxy(0, 0); lcd_clear(); lcd_putstring(0," NIYOG "); lcd_putstring(1," RULES "); }