NJU6063.h

00001 /** @file NJU6063.h
00002 * @author k.og
00003 * @version 0.1
00004 * @date 26-Dec-2015
00005 * @brief mbed library to use a NJU6063 RGB LED driver
00006 * http://www.njr.com/semicon/products/NJU6063.html
00007 * interface: I2C
00008 */
00009 #ifndef MBED_NJU6063_H
00010 #define MBED_NJU6063_H
00011 #
00012 #include "mbed.h"
00013 #define NJU6063_SLAVE 0x40
00014 #define NJU6063_INIT 0x00
00015 #define NJU6063_ILED 0x01
00016 #define NJU6063_PWM1 0x02
00017 #define NJU6063_PWM2 0x03
00018 #define NJU6063_PWM3 0x04
00019 #define NJU6063_DIMM 0x05
00020 #define NJU6063_STON 0x06
00021 #define NJU6063_START 0x07
00022 #define NJU6063_DCHK 0x0b
00023 #define NJU6063_MADRES 0x0d
00024 
00025 
00026 #define NJU6063_EN 0x01
00027 #define NJU6063_EXT 0x02
00028 #define NJU6063_FDX1 0x00
00029 #define NJU6063_FDX2 0x04
00030 #define NJU6063_FDX4 0x08
00031 #define NJU6063_FDX8 0x0C
00032 #define NJU6063_FC1000KHZ 0x00
00033 #define NJU6063_FC1300KHZ 0x10
00034 #define NJU6063_FC800KHZ 0x20
00035 #define NJU6063_FC2200KHZ 0x30
00036 #define NJU6063_DMGP 0x80
00037 #define NJU6063_DO1 0x40
00038 #define NJU6063_ILED1OFF 0x00
00039 #define NJU6063_ILED1X1  0x03
00040 #define NJU6063_ILED1X05 0x02
00041 #define NJU6063_ILED1X025 0x01
00042 #define NJU6063_ILED2OFF 0x00
00043 #define NJU6063_ILED2X1  0x03
00044 #define NJU6063_ILED2X05 0x02
00045 #define NJU6063_ILED2X025 0x01
00046 #define NJU6063_ILED3OFF 0x00
00047 #define NJU6063_ILED3X1  0x03
00048 #define NJU6063_ILED3X05 0x02
00049 #define NJU6063_ILED3X025 0x01
00050 #define NJU6063_ALL 0xff
00051 
00052 #define NJU6063_DEFAULTINIT NJU6063_FC800KHZ|NJU6063_FDX8|NJU6063_EN
00053 #define NJU6063_WAIT wait_us(500*3)
00054 #define NJU6063_WAIT_MS wait_ms(200)
00055 
00056 class NJU6063
00057 {
00058 private:
00059     I2C _i2c;
00060     //I2C_TypeDef* _myI2c;
00061     //I2C_HandleTypeDef _myI2cH;
00062     DigitalOut _rst;
00063     int ack;
00064 public:
00065     /**
00066     * @param sda I2C-bus SDA pin
00067     * @param scl I2C-bus SCL pin
00068     * @param rst Digital pin
00069     */
00070     NJU6063( PinName sda, PinName scl, PinName rst);
00071     /** Destructor of NJU6063
00072     */
00073     ~NJU6063() {};
00074     /** NJU6063 Reset
00075     */
00076     void reset(void);
00077     /** NJU6063 device addres set
00078     * @param n Max number of device. 1 - 254
00079     */
00080     uint8_t set_multi_device(uint8_t n=0xfe);
00081     /** NJU6063 Initial setting
00082     * @param chip_addr  target chip address
00083     * @param d          data
00084     *   7   6   5   4   3   2   1   0
00085     *  DM  DO FC1 FD0 FD1 FD0 EXT  EN
00086     * DM DO1 Function 0: Multi device control, 1: GPO
00087     * DO The bit output to DO1
00088     * FC OSC Frequency 0:1MHz, 1:1.3MHz, 2:2.2MHz, 3:0.8MHz
00089     * FD divider 0:1/256, 1:1/512, 2:1/1024, 3:1/2048
00090     * EXT OSC select 0:INT OSC, 1:EXT CLOCK
00091     * EN 0:Disable, 1:Enable
00092     */
00093     void init(uint8_t chip_addr, uint8_t d);
00094     /** Set LED current
00095     * @param chip_addr  target chip address
00096     * @param d1         led1 current set
00097     * @param d2         led2 current set
00098     * @param d3         led3 current set
00099     * 0: LED off, 1: 0.25*ILED, 2: 0.5*ILED, 3: 1*ILED
00100     */
00101     void set_iled(uint8_t chip_addr, uint8_t d1, uint8_t d2, uint8_t d3);
00102     /** Set PWM Duty
00103     * @param chip_addr  target chip address
00104     * @param d1         led1 pwm  0 - 0x7f (127/128)
00105     * @param d2         led2 pwm  0 - 0x7f (127/128)
00106     * @param d3         led3 pwm  0 - 0x7f (127/128)
00107     * @param loop       no of loop & no of step
00108     * @param son        led3 current set bit0:LED1, bit1:LED2, bit3:LED3
00109     * 
00110     * STEP[6:4] 2^n , 0:1, 1:2, 2:4, 3:8, 4:16, 5:32, 6:1, 7:1
00111     * LOOP[3:0] 4*(n+1) , 0:4 ... 15:64
00112     */
00113     void set_pwm(uint8_t chip_addr, uint8_t d1, uint8_t d2, uint8_t d3, uint8_t loop=0x5f, uint8_t son=0x00);
00114     /** Dimming Start
00115     * @param chip_addr  target chip address
00116     */
00117     void dim_start(uint8_t chip_addr);
00118     /** Dimming stop
00119     */
00120     void dim_stop(uint8_t chip_addr);
00121     /** Dimming check
00122     */
00123     void check_dim(void);
00124 };
00125 
00126 #endif // MBED_NJU6063_H