Update copyrights for 2014.

[pub/USBasp.git] / Projects / SerialToLCD / Lib / HD44780.c

diff --git a/Projects/SerialToLCD/Lib/HD44780.c b/Projects/SerialToLCD/Lib/HD44780.c
index cd825f8..a91e793 100644 (file)
--- a/Projects/SerialToLCD/Lib/HD44780.c
+++ b/Projects/SerialToLCD/Lib/HD44780.c
@@ -1,13 +1,13 @@
 /*
              LUFA Library
 /*
              LUFA Library

-     Copyright (C) Dean Camera, 2013.
+     Copyright (C) Dean Camera, 2014.

 
   dean [at] fourwalledcubicle [dot] com
            www.lufa-lib.org
 */
 
 /*
 
   dean [at] fourwalledcubicle [dot] com
            www.lufa-lib.org
 */
 
 /*

-  Copyright 2013  Dean Camera (dean [at] fourwalledcubicle [dot] com)
+  Copyright 2014  Dean Camera (dean [at] fourwalledcubicle [dot] com)

   Copyright 2012  Simon Foster (simon.foster [at] inbox [dot] com)
 
   Permission to use, copy, modify, distribute, and sell this
   Copyright 2012  Simon Foster (simon.foster [at] inbox [dot] com)
 
   Permission to use, copy, modify, distribute, and sell this


@@ -33,21 +33,21 @@
 
 static void HD44780_WriteNibble(const uint8_t nib)
 {
 
 static void HD44780_WriteNibble(const uint8_t nib)
 {

-       /* Read PORTD and clear the ENABLE and PD0..3 bits 
+       /* Read PORTD and clear the ENABLE and PD0..3 bits

           then OR in the data */
           then OR in the data */

-       
+

        PORTD = (PORTD & ~(ENABLE | LO4_MASK)) | (nib & LO4_MASK);
        PORTD = (PORTD & ~(ENABLE | LO4_MASK)) | (nib & LO4_MASK);

-       
-       /* Enforce address setup time (tAS) 60ns 
-          60 @ 16MHz = <1  
+
+       /* Enforce address setup time (tAS) 60ns
+          60 @ 16MHz = <1

           Let's us a few NOPs for good measure */
        asm volatile("nop\n\t"
                     "nop\n\t"
                     :: );
           Let's us a few NOPs for good measure */
        asm volatile("nop\n\t"
                     "nop\n\t"
                     :: );

-       
+

        /* Take enable high and enforce Enable High time (tEH=450ns)
           450ns @ 16MHz = 7.2 => 7 NOPs */
        /* Take enable high and enforce Enable High time (tEH=450ns)
           450ns @ 16MHz = 7.2 => 7 NOPs */

-          
+

        PORTD |= ENABLE;
 
        asm volatile("nop\n\t"
        PORTD |= ENABLE;
 
        asm volatile("nop\n\t"


@@ -63,7 +63,7 @@ static void HD44780_WriteNibble(const uint8_t nib)
        /* Take enable low and enforce Enable Low time (tEL=500ns)
           500ns @ 16MHz = 8.0 => 7 NOPs */
        PORTD &= ~ENABLE;
        /* Take enable low and enforce Enable Low time (tEL=500ns)
           500ns @ 16MHz = 8.0 => 7 NOPs */
        PORTD &= ~ENABLE;

-       
+

        asm volatile("nop\n\t"
                     "nop\n\t"
                     "nop\n\t"
        asm volatile("nop\n\t"
                     "nop\n\t"
                     "nop\n\t"


@@ -90,11 +90,11 @@ static void HD44780_PowerUp4Bit(void)
        /* Wait for more than 4.1 ms */
        _delay_ms(5);
        HD44780_WriteNibble(0x03);        // FN_SET 8-bit
        /* Wait for more than 4.1 ms */
        _delay_ms(5);
        HD44780_WriteNibble(0x03);        // FN_SET 8-bit

-       
+

        /* Wait for more than 100 µs */
        _delay_us(100);
        HD44780_WriteNibble(0x03);        // FN_SET 8-bit
        /* Wait for more than 100 µs */
        _delay_us(100);
        HD44780_WriteNibble(0x03);        // FN_SET 8-bit

-       
+

        /* From now on we must allow 40us for each command */
        _delay_us(50);
        HD44780_WriteNibble(0x02);        // FN_SET 4-bit
        /* From now on we must allow 40us for each command */
        _delay_us(50);
        HD44780_WriteNibble(0x02);        // FN_SET 4-bit