AO19_lib.h

00001 #include "mbed.h"
00002 
00003 //AO19 Registers
00004 #define AO19_DEVICE_ID      0x00    // AO19 Chip ID
00005 #define AO19_BB_CFG0        0x01    // AO19 Buck Boost Configure
00006 #define AO19_BB_VSET        0x02    // AO19 Buck Boost Voltage Set
00007 #define AO19_BB_ISET        0x03    // AO19 Buck Boost Current Set
00008 #define AO19_BB_CFG1        0x04    // AO19 Buck Boost Configure 1
00009 #define AO19_STATUS         0x05    // AO19 Status Register
00010 #define AO19_INT            0x06    // AO19 Interrupt
00011 #define AO19_MSK            0x07    // AO19 Mask
00012 #define AO19_LOCK_MSK       0x50    // AO19 Lock Mask
00013 #define AO19_PASSWD         0x51    // AO19 Password
00014 
00015 #define DEVICE_ACK      0
00016 #define DEVICE_NACK     1
00017 #define DEVICE_BAD_RESP 2
00018 
00019 #define MAX_DEVICES 64      // Maximum number of rom devices allowed
00020 #define ID_LENGTH   6       // Rom ID length in bytes
00021 
00022 struct AO19_struct {
00023     char rom_id[ID_LENGTH];     // device ROM ID
00024     char I2C_address;           // I2C addess, based on GPIO0 and GPIO1 at power up
00025                                 // Why char?
00026 }; 
00027 
00028 // *****************************************************************************
00029 //   AO19_write_register(char, char, char)  writes single byte to AO19
00030 //                       char   I2C address
00031 //                       char   AO19 register address
00032 //                       char   data byte to be writen
00033 //   returns                    0 on success ACK, 1 on NACK 
00034 // *****************************************************************************
00035 int AO19_write_register(I2C *i2c, char I2C_add, char reg_add, char byte);
00036 
00037 /// ****************************************************************************
00038 //   AO19_write_register(char, char, char *, int)  writes multiple bytes to AO19
00039 //                       char   I2C address
00040 //                       char   AO19 register address
00041 //                       char * data vector of bytes to be written
00042 //                       int    number of bytes to write
00043 //   returns                    0 on success ACK, 1 on NACK 
00044 // *****************************************************************************
00045 int AO19_write_register(I2C *i2c, char I2C_add, char reg_add, char *bytes, int n);
00046 
00047 // *****************************************************************************
00048 //   AO19_read_register(char, char, char *)  reads single byte from AO19
00049 //                       char   I2C address
00050 //                       char   AO19 register address
00051 //                       char * data vector for read bytes to be stored in 
00052 //   returns                    0 on success, 1 on fail 
00053 // *****************************************************************************
00054 int AO19_read_register(I2C *i2c, char I2C_add, char reg_add, char *bytes);
00055 
00056 // *****************************************************************************
00057 //   AO19_read_register(char, char, char *, int)  reads byte(s) from AO19
00058 //                       char   I2C address
00059 //                       char   OT07 register address
00060 //                       char * data vector for read bytes to be stored in 
00061 //                       int    number of bytes to read
00062 //   returns                    0 on success, 1 on fail 
00063 // *****************************************************************************
00064 int AO19_read_register(I2C *i2c, char I2C_add, char reg_add, char *bytes, int n);