glcd_cmdWrite.c

/* Function to send the command to LCD */
void Glcd_CmdWrite(char cmd)
{
    sendByte(cmd);                        //Send the command
    GlcdControlBusPort &= ~(1<<GLCD_RS); // Send LOW pulse on RS pin for selecting Command register
    GlcdControlBusPort &= ~(1<<GLCD_RW); // Send LOW pulse on RW pin for Write operation
    GlcdControlBusPort |= (1<<GLCD_EN);  // Generate a High-to-low pulse on EN pin
    delay(1000);
    GlcdControlBusPort &= ~(1<<GLCD_EN);

    delay(10000);
}