avr-libc: defines.h Source File

avr-libc 2.1.0 Standard C library for AVR-GCC |

## AVR Libc Home Page |  | ## AVR Libc Development Pages
## Main Page | ## User Manual | ## Library Reference | ## FAQ | ## Example Projects

Loading...
Searching...
No Matches
defines.h
1/*
2 * ----------------------------------------------------------------------------
3 * "THE BEER-WARE LICENSE" (Revision 42):
4 * <joerg@FreeBSD.ORG> wrote this file. As long as you retain this notice you
5 * can do whatever you want with this stuff. If we meet some day, and you think
6 * this stuff is worth it, you can buy me a beer in return. Joerg Wunsch
7 * ----------------------------------------------------------------------------
8 *
9 * General stdiodemo defines
10 *
11 * $Id: defines.h 2186 2010-09-22 10:25:15Z aboyapati $
12 */
13
14/* CPU frequency */
15#define F_CPU 1000000UL
16
17/* UART baud rate */
18#define UART_BAUD 9600
19
20/* HD44780 LCD port connections */
21#define HD44780_RS A, 6
22#define HD44780_RW A, 4
23#define HD44780_E A, 5
24/* The data bits have to be not only in ascending order but also consecutive. */
25#define HD44780_D4 A, 0
26
27/* Whether to read the busy flag, or fall back to
28 worst-time delays. */
29#define USE_BUSY_BIT 1