void lcd_write(unsigned char c)
{
 P3MDOUT = 0x1E;
lcdport = (c & 0x0F) << 4; //send lower-order nibble
LCD_EN = 1;
Delay(50);//200microseconds
LCD_EN = 0; //LCD_STROBE;
lcdport = (c & 0xF0); // send higher-order nibble
LCD_EN = 1;
Delay(50);//200microseconds
LCD_EN = 0;//LCD_STROBE;

}