NixieTubeClock/Nixie_Firmware_Mbed/pca9685.h

#ifndef _PCA_9685_H_
#define _PCA_9685_H_

#include "mbed.h"
#include "main.h"

#define PCM9685_ADDR_1     0x41
#define PCM9685_ADDR_2     0x42
#define PCM9685_ADDR_3     0x43

// Hardcoded addresses available on powerup
#define PCM9685_All_Call   0x70     // Default enabled
#define PCM9685_Sub_Call_1 0x71     // Default disabled
#define PCM9685_Sub_Call_2 0x72     // Default disabled
#define PCM9685_Sub_Call_3 0x73     // Default disabled
#define PCM9685_Reset      0x03     // Default enabled?

#define PCA9685_Max_Brightness 4096
#define PCA9685_Min_Brightness 0

typedef union {
    struct {
        uint8_t ALLCALL : 1;
        uint8_t SUB3    : 1;
        uint8_t SUB2    : 1;
        uint8_t SUB1    : 1;
        uint8_t SLEEP   : 1;
        uint8_t AI      : 1;
        uint8_t EXTCLK  : 1;
        uint8_t RESTART : 1;
    };
    uint8_t AS_BYTE;
} REG_MODE1;

typedef union {
    struct {
        uint8_t OUTNE  : 2;
        uint8_t OUTDRV : 1;
        uint8_t OCH    : 1;
        uint8_t INVRT  : 1;
        uint8_t        : 3;
    };
    uint8_t AS_BYTE;
} REG_MODE2;

typedef union {
    struct {
        uint16_t ON       : 12;
        uint16_t ON_FULL  : 1;
        uint16_t          : 3;
        uint16_t OFF      : 12;
        uint16_t OFF_FULL : 1;
        uint16_t          : 3;
    };
    uint8_t AS_BYTE[4];
} LED_CTRL;

typedef union {
    struct {
        uint16_t ON       : 12;
        uint16_t ON_FULL  : 1;
        uint16_t          : 3;
        uint16_t OFF      : 12;
        uint16_t OFF_FULL : 1;
        uint16_t          : 3;
    };
    uint8_t AS_BYTE[4];
} ALL_LED_CTRL;
 
typedef struct {
    REG_MODE1       MODE1;          // +0x00
    REG_MODE2       MODE2;          // +0x01
    uint8_t         SUBADR1;        // +0x02
    uint8_t         SUBADR2;        // +0x03
    uint8_t         SUBADR3;        // +0x04
    uint8_t         ALLCALLADR;     // +0x05
    LED_CTRL        LED0;           // +0x06
    LED_CTRL        LED1;           // +0x0A
    LED_CTRL        LED2;           // +0x0E
    LED_CTRL        LED3;           // +0x12
    LED_CTRL        LED4;           // +0x16
    LED_CTRL        LED5;           // +0x1A
    LED_CTRL        LED6;           // +0x1E
    LED_CTRL        LED7;           // +0x22
    LED_CTRL        LED8;           // +0x26
    LED_CTRL        LED9;           // +0x2A
    LED_CTRL        LED10;          // +0x2E
    LED_CTRL        LED11;          // +0x32
    LED_CTRL        LED12;          // +0x36
    LED_CTRL        LED13;          // +0x3A
    LED_CTRL        LED14;          // +0x3E
    LED_CTRL        LED15;          // +0x42
    uint8_t         RESERVED[180];  // +0x46
    ALL_LED_CTRL    ALL_LED;        // +0xFA
    uint8_t         PRE_SCALE;      // +0xFE
    uint8_t         TestMode;       // +0xFF
} PCM9685_REGS;

#define TUBE_DOT_ADDR PCM9685_ADDR_2
#define TUBE_DOT_PIN LED15

#define MAP_ADDR 0
#define MAP_PIN  1

const char Tube_Mapping[4][10][2] = 
    { { { PCM9685_ADDR_1, 9  },     // Tube 0 Digit 0
        { PCM9685_ADDR_1, 10 },     // Tube 0 Digit 1
        { PCM9685_ADDR_1, 12 },     // Tube 0 Digit 2
        { PCM9685_ADDR_1, 15 },     // Tube 0 Digit 3
        { PCM9685_ADDR_1, 14 },     // Tube 0 Digit 4
        { PCM9685_ADDR_1, 11 },     // Tube 0 Digit 5
        { PCM9685_ADDR_1, 0  },     // Tube 0 Digit 6
        { PCM9685_ADDR_1, 1  },     // Tube 0 Digit 7
        { PCM9685_ADDR_1, 13 },     // Tube 0 Digit 8
        { PCM9685_ADDR_1, 8  } },   // Tube 0 Digit 9

      { { PCM9685_ADDR_1, 6  },     // Tube 1 Digit 0
        { PCM9685_ADDR_1, 7  },     // Tube 1 Digit 1
        { PCM9685_ADDR_1, 2  },     // Tube 1 Digit 2
        { PCM9685_ADDR_2, 4  },     // Tube 1 Digit 3
        { PCM9685_ADDR_2, 1  },     // Tube 1 Digit 4
        { PCM9685_ADDR_1, 4  },     // Tube 1 Digit 5
        { PCM9685_ADDR_2, 2  },     // Tube 1 Digit 6
        { PCM9685_ADDR_2, 3  },     // Tube 1 Digit 7
        { PCM9685_ADDR_1, 3  },     // Tube 1 Digit 8
        { PCM9685_ADDR_1, 5  } },   // Tube 1 Digit 9

      { { PCM9685_ADDR_3, 9  },     // Tube 2 Digit 0
        { PCM9685_ADDR_3, 10 },     // Tube 2 Digit 1
        { PCM9685_ADDR_3, 12 },     // Tube 2 Digit 2
        { PCM9685_ADDR_2, 12 },     // Tube 2 Digit 3
        { PCM9685_ADDR_2, 13 },     // Tube 2 Digit 4
        { PCM9685_ADDR_3, 11 },     // Tube 2 Digit 5
        { PCM9685_ADDR_2, 14 },     // Tube 2 Digit 6
        { PCM9685_ADDR_2, 11 },     // Tube 2 Digit 7
        { PCM9685_ADDR_3, 13 },     // Tube 2 Digit 8
        { PCM9685_ADDR_3, 8  } },   // Tube 2 Digit 9

      { { PCM9685_ADDR_3, 6  },     // Tube 3 Digit 0
        { PCM9685_ADDR_3, 7  },     // Tube 3 Digit 1
        { PCM9685_ADDR_3, 2  },     // Tube 3 Digit 2
        { PCM9685_ADDR_3, 14 },     // Tube 3 Digit 3
        { PCM9685_ADDR_3, 15 },     // Tube 3 Digit 4
        { PCM9685_ADDR_3, 4  },     // Tube 3 Digit 5
        { PCM9685_ADDR_3, 1  },     // Tube 3 Digit 6
        { PCM9685_ADDR_3, 0  },     // Tube 3 Digit 7
        { PCM9685_ADDR_3, 3  },     // Tube 3 Digit 8
        { PCM9685_ADDR_3, 5  } } }; // Tube 3 Digit 9

void PCA9685_Init(void);
void PCA9685_SetVoltage(float Percent);
void PCA9685_SetDigit(int Tube, int Digit, int Brightness);
void PCA9685_SetDot(int Brightness);
void PCA9685_EnableOutput(bool Enabled);

#endif