count_binary.h

二进制计数器的硬件代码

/*************************************************************************
* Copyright (c) 2006 Altera Corporation, San Jose, California, USA.      *
* All rights reserved. All use of this software and documentation is     *
* subject to the License Agreement located at the end of this file below.*
*************************************************************************/

#include "alt_types.h"
#include "altera_avalon_pio_regs.h"
#include "sys/alt_irq.h"
#include "system.h"
#include <stdio.h>
#include <unistd.h>

#ifndef LCD_DISPLAY_NAME
/* Some hardware is not present because of system or because of simulation */
#   define LCD_CLOSE(x) /* Do Nothing */
#   define LCD_OPEN() NULL
#   define LCD_PRINTF(lcd, args...) fprintf(lcd, args)

#else
/* With hardware devices present, use these definitions */
#   define LCD_CLOSE(x) fclose((x))
#   define LCD_OPEN() fopen("/dev/lcd_display", "w")
#   define LCD_PRINTF fprintf

#endif

/* Cursor movement on the LCD */
/* Clear */
#define ESC 27
/* Position cursor at row 1, column 1 of LCD. */
#define ESC_CLEAR "K"
/* Position cursor at row1, column 5 of LCD. */
#define ESC_COL1_INDENT5 "[1;5H"
/* Position cursor at row2, column 5 of LCD. */
#define ESC_COL2_INDENT5 "[2;5H"
/* Integer ASCII value of the ESC character. */
#define ESC_TOP_LEFT "[1;0H"

/******************************************************************************
*                                                                             *
* License Agreement                                                           *
*                                                                             *
* Copyright (c) 2006 Altera Corporation, San Jose, California, USA.           *
* All rights reserved.                                                        *
*                                                                             *
* Permission is hereby granted, free of charge, to any person obtaining a     *
* copy of this software and associated documentation files (the "Software"),  *
* to deal in the Software without restriction, including without limitation   *
* the rights to use, copy, modify, merge, publish, distribute, sublicense,    *
* and/or sell copies of the Software, and to permit persons to whom the       *
* Software is furnished to do so, subject to the following conditions:        *
*                                                                             *
* The above copyright notice and this permission notice shall be included in  *
* all copies or substantial portions of the Software.                         *
*                                                                             *
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR  *
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,    *
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE *
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER      *
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING     *
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER         *
* DEALINGS IN THE SOFTWARE.                                                   *
*                                                                             *
* This agreement shall be governed in all respects by the laws of the State   *
* of California and by the laws of the United States of America.              *
* Altera does not recommend, suggest or require that this reference design    *
* file be used in conjunction or combination with any other product.          *
******************************************************************************/