common.h

00001 /*
00002  * Nano 33 BLE Sense
00003  *      Arudiono nRF52840 module
00004  *      Common functions
00005  *
00006  * Copyright (c) 2020,'21 Kenji Arai / JH1PJL
00007  *      http://www7b.biglobe.ne.jp/~kenjia/
00008  *      https://os.mbed.com/users/kenjiArai/
00009  *      Started:    January   22nd, 2020
00010  *      Revised:    February  28th, 2021
00011  *
00012  */
00013 
00014 //  Pre-selection --------------------------------------------------------------
00015 #include    "select_example.h"
00016 //#define USE_COMMON_FUNCTION
00017 #ifdef USE_COMMON_FUNCTION
00018 
00019 //  Include --------------------------------------------------------------------
00020 #include    "mbed.h"
00021 #include    "nano33blesense_iodef.h"
00022 #include    "LPS22HB.h"
00023 #include    "LSM9DS1.h"
00024 #include    "HTS221.h"
00025 //#include    "glibr.h" // define as follows
00026 
00027 //  Definition -----------------------------------------------------------------
00028 /* APDS-9960 I2C address */
00029 #define APDS9960_I2C_ADDR       0x39
00030 /* APDS-9960 register */
00031 #define APDS9960_ID             0x92
00032 /* Acceptable device IDs */
00033 #define APDS9960_ID_1           0xAB
00034 #define APDS9960_ID_2           0x9C 
00035 
00036 //  Constructor ----------------------------------------------------------------
00037 
00038 //  RAM ------------------------------------------------------------------------
00039 
00040 //  ROM / Constant data --------------------------------------------------------
00041 
00042 //  Function prototypes --------------------------------------------------------
00043 
00044 //------------------------------------------------------------------------------
00045 //  Control Program
00046 //------------------------------------------------------------------------------
00047 void check_i2c_connected_devices(void)
00048 {
00049     char dt[2];
00050     int status;
00051 
00052     // Check I2C line
00053     i2c.frequency(400000);
00054     dt[0] = 0;
00055     print_usb("check I2C device --> START\r\n");
00056     for (uint8_t i = 0; i < 0x80; i++) {
00057         int addr = i << 1;
00058         status = i2c.write(addr, dt, 1, true);
00059         if (status == 0) {
00060             print_usb("Get ACK form address = 0x%x\r\n", i);
00061         }
00062     }
00063 }
00064 
00065 void check_i2c_sensors(void)
00066 {
00067     char dt[2];
00068 
00069     // LSM9DS1
00070     dt[0] = WHO_AM_I_XG;
00071     int addr = LSM9DS1_AG_I2C_ADDR(1);
00072     i2c.write(addr, dt, 1, true);
00073     dt[0] = 0;
00074     i2c.read(addr, dt, 1, false);
00075     print_usb("LSM9DS1_AG is ");
00076     if (dt[0] != WHO_AM_I_AG_RSP) {
00077         print_usb("NOT ");
00078     }
00079     print_usb("available -> 0x%x = 0x%x\r\n", addr >> 1, dt[0]);
00080     dt[0] = WHO_AM_I_M;
00081     addr = LSM9DS1_M_I2C_ADDR(1);
00082     i2c.write(addr, dt, 1, true);
00083     dt[0] = 0;
00084     i2c.read(addr, dt, 1, false);
00085     print_usb("LSM9DS1_M is ");
00086     if (dt[0] != WHO_AM_I_M_RSP) {
00087         print_usb("NOT ");
00088     } 
00089     print_usb("available -> 0x%x = 0x%x\r\n", addr >> 1, dt[0]);
00090     // LPS22HB
00091     dt[0] = LPS22HB_WHO_AM_I;
00092     addr = LPS22HB_G_CHIP_ADDR;
00093     i2c.write(addr, dt, 1, true);
00094     dt[0] = 0;
00095     i2c.read(addr, dt, 1, false);
00096     print_usb("LPS22HB is ");
00097     if (dt[0] != I_AM_LPS22HB) {
00098         print_usb("NOT ");
00099     } 
00100     print_usb("available -> 0x%x = 0x%x\r\n", addr >> 1, dt[0]);
00101     // HTS221
00102     dt[0] =  HTS221::HTS221_WHO_AM_I;
00103     addr =  HTS221::HTS221_ADDRESS;
00104     i2c.write(addr, dt, 1, true);
00105     dt[0] = 0;
00106     i2c.read(addr, dt, 1, false);
00107     print_usb("HTS221 is ");
00108     if (dt[0] !=  HTS221::WHO_AM_I_VALUE) {
00109         print_usb("NOT ");
00110     } 
00111     print_usb("available -> 0x%x = 0x%x\r\n", addr >> 1, dt[0]);
00112     // APDS_9960
00113     dt[0] = APDS9960_ID;
00114     addr =  APDS9960_I2C_ADDR << 1;
00115     i2c.write(addr, dt, 1, true);
00116     dt[0] = 0;
00117     i2c.read(addr, dt, 1, false);
00118     print_usb("APDS_9960 is ");
00119     if (dt[0] == APDS9960_ID_1 || dt[0] == APDS9960_ID_2) {
00120         ;
00121     } else {
00122         print_usb("NOT ");
00123     } 
00124     print_usb("available -> 0x%x = 0x%x\r\n", addr >> 1, dt[0]);
00125 }
00126 
00127 #endif  // USE_COMMON_FUNCTION