VAPC2/lib/max7219.h

/* MAX7219 Header file
 * ---------------------------
 * For more information see
 * http://www.adnbr.co.uk/articles/max7219-and-7-segment-displays
 * ----------------------------------------------------------------------------
 * "THE BEER-WARE LICENSE" (Revision 42):
 * <shilow@ukr.net> wrote this file.  As long as you retain this notice you
 * can do whatever you want with this stuff. If we meet some day, and you think
 * this stuff is worth it, you can buy me a beer in return.   Shilov V.N.
 * ----------------------------------------------------------------------------
 */

/* Define to prevent recursive inclusion -------------------------------------*/
#pragma once
#ifndef __MAX7219_H
#define __MAX7219_H

/* Includes ------------------------------------------------------------------*/
#include "stm8s.h"

/* Exported defines ----------------------------------------------------------*/
#define MAX7219_ON			0x01
#define MAX7219_OFF			0x00
#define MAX7219_BRIGHT	0x08

// used LED digits - 1
#define MAX7219_DIGITS  7

/* Exported types ------------------------------------------------------------*/
typedef enum _max7219_reg {
  RegNoOp        = 0x00,
  RegDigit0      = 0x01,
  RegDigit1      = 0x07,
  RegDigit2      = 0x03,
  RegDigit3      = 0x06,
  RegDigit4      = 0x05,
  RegDigit5      = 0x04,
  RegDigit6      = 0x08,
  RegDigit7      = 0x02,
  RegDecodeMode  = 0x09,
  RegIntensity   = 0x0A,
  RegScanLimit   = 0x0B,
  RegPower       = 0x0C,
  RegTest        = 0x0F
} max7219_reg_t;

// соответсвие бит сегментам
typedef enum _max7219_seg {
  SegA    = 4,
  SegB    = 0,
  SegC    = 1,
  SegD    = 7,
  SegE    = 3,
  SegF    = 2,
  SegG    = 5,
  SegDP   = 6,
} max7219_seg_t;

// symbols без кодирования
typedef enum _max7219_sym {
  Sym_0       = 0x9F,
  Sym_1       = 0x03,
  Sym_2       = 0xB9,
  Sym_3       = 0xB3,
  Sym_4       = 0x27,
  Sym_5       = 0xB6,
  Sym_6       = 0xBe,
  Sym_7       = 0x13,
  Sym_8       = 0xBF,
  Sym_9       = 0xB7,
  Sym_A       = 0x3F,
  Sym_b       = 0xAE,
  Sym_c       = 0xA8,
  Sym_C       = 0x9C,
  Sym_d       = 0xAB,
  Sym_E       = 0xBC,
  Sym_F       = 0x3C,
  Sym_h       = 0x2E,
  Sym_H       = 0x2F,
  Sym_o     	= 0xAA,
  Sym_P       = 0x3D,
  Sym_t       = 0xAC,
  Sym_u       = 0x8A,
  Sym_U       = 0x8F,
  Sym_Gradus	= 0x35,
  Sym_Minus	  = 0x20,
  Sym_BLANK	  = 0x00,
  Sym_FULL	  = 0xFF,
  Sym_Dot     = 0x40
} max7219_sym_t;

/* Exported constants --------------------------------------------------------*/
/* Exported macro ------------------------------------------------------------*/
/* Exported variables --------------------------------------------------------*/
/* Exported functions --------------------------------------------------------*/
void MAX7219_Config(void);
void MAX7219_WriteData(max7219_reg_t reg, uint8_t data);

#endif /* __MAX7219_H */