VAPC-meter/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 "stm8l15x.h"

/* Exported defines ----------------------------------------------------------*/
// соответсвие бит сегментам
#define SEG_A			1
#define SEG_B			3
#define SEG_C			2
#define SEG_D			5
#define SEG_E			6
#define SEG_F			0
#define SEG_G			7
#define SEG_DP			4

// symbols
// Для BCD
#define MAX7219_CHAR_BLANK	0x0F
#define MAX7219_CHAR_FULL	0x88
// без кодирования
#define SYM_0		0x6F
#define SYM_1		0x0C
#define SYM_2		0xEA
#define SYM_3		0xAE
#define SYM_4		0x8D
#define SYM_5		0xA7
#define SYM_6		0xE7
#define SYM_7		0x0E
#define SYM_8		0xEF
#define SYM_9		0xAF
#define SYM_A		0xCF
#define SYM_b		0xE5
#define SYM_c		0xE0
#define SYM_C		0x63
#define SYM_d		0xEC
#define SYM_E		0xE3
#define SYM_F		0xC3
#define SYM_P		0xCB
#define SYM_Gradus	0x8B
#define SYM_LGradus	0xE4
#define SYM_Temp	0xE1
#define SYM_Minus	0x80
#define SYM_Plus	0xD1
#define SYM_BLANK	0x00
#define SYM_FULL	0xFF
#define SYM_DOT 	0x10

#define MAX7219_ON			0x01
#define MAX7219_OFF			0x00
#define MAX7219_BRIGHT		0x08

// used LED digits - 1
#define MAX7219_DIGITS  7

/* Exported types ------------------------------------------------------------*/
typedef enum {
    NoOp        = 0x00,
    Digit0      = 0x03,
    Digit1      = 0x08,
    Digit2      = 0x02,
    Digit3      = 0x01,
    Digit4      = 0x07,
    Digit5      = 0x04,
    Digit6      = 0x06,
    Digit7      = 0x05,
    DecodeMode  = 0x09,
    Intensity   = 0x0A,
    ScanLimit   = 0x0B,
    Power       = 0x0C,
    Test        = 0x0F
} max7219_reg_t;

typedef enum {
    SegA    = SEG_A,
    SegB    = SEG_B,
    SegC    = SEG_C,
    SegD    = SEG_D,
    SegE    = SEG_E,
    SegF    = SEG_F,
    SegG    = SEG_G,
    SegDP   = SEG_DP,
} max7219_seg_t;

typedef enum {
    Sym_0        = SYM_0,
    Sym_1        = SYM_1,
    Sym_2        = SYM_2,
    Sym_3        = SYM_3,
    Sym_4        = SYM_4,
    Sym_5        = SYM_5,
    Sym_6        = SYM_6,
    Sym_7        = SYM_7,
    Sym_8        = SYM_8,
    Sym_9        = SYM_9,
    Sym_A        = SYM_A,
    Sym_b        = SYM_b,
    Sym_c        = SYM_c,
    Sym_C        = SYM_C,
    Sym_d        = SYM_d,
    Sym_E        = SYM_E,
    Sym_F        = SYM_F,
    Sym_P        = SYM_P,
    Sym_Gradus	 = SYM_Gradus,
    Sym_LGradus	 = SYM_LGradus,
    Sym_Temp	 = SYM_Temp,
    Sym_Minus	 = SYM_Minus,
    Sym_Plus	 = SYM_P,
    Sym_BLANK	 = SYM_BLANK,
    Sym_FULL	 = SYM_FULL,
    Sym_Dot      = SYM_DOT
} max7219_sym_t;

/* Exported constants --------------------------------------------------------*/
/* Exported macro ------------------------------------------------------------*/
/* Exported variables --------------------------------------------------------*/
/* Exported functions --------------------------------------------------------*/
void MAX7219_Init(void);
void MAX7219_WriteData(max7219_reg_t reg, uint8_t data);

#endif /* __MAX7219_H */