Hi folks,
Im working with lis3dh & stm32 using https://github.com/STMicroelectronics/STMems_Standard_C_drivers/tree/master/lis3dh_STdC
this library.No output found.While debugging my code stuck in while(1) loop(i.e while compairing i2c address) ,I even try with different i2c addess i.e(0x19,0x32) but it fails ,
My connections are SCL of sensor to SCL of uc board ,SDA (sensor) to SDA board vdd & gnd.
Please suggest any solution with this or other library, or connection.
Please check my code below.
/* USER CODE BEGIN 2 */
/* Initialize mems driver interface. */
stmdev_ctx_t dev_ctx;
lis3dh_ctrl_reg3_t ctrl_reg3;
lis3dh_int1_cfg_t int1_cfg;
dev_ctx.write_reg = platform_write;
dev_ctx.read_reg = platform_read;
dev_ctx.handle = &hi2c1;
/* Initialize platform specific hardware */
platform_init();
/* Check device ID */
lis3dh_device_id_get(&dev_ctx, &whoamI);
if (whoamI != LIS3DH_ID) {
while (1) {
/* manage here device not found */
}
}
/* Set full scale to 2 g */
lis3dh_full_scale_set(&dev_ctx, LIS3DH_2g);
/* Enable AOI1 interrupt on INT pin 1 */
lis3dh_pin_int1_config_get(&dev_ctx, &ctrl_reg3);
ctrl_reg3.i1_ia1 = PROPERTY_ENABLE;
lis3dh_pin_int1_config_set(&dev_ctx, &ctrl_reg3);
/* Enable Interrupt 1 pin latched */
lis3dh_int1_pin_notification_mode_set(&dev_ctx, LIS3DH_INT1_LATCHED);
/* Set threshold to 16h -> 350mg
* Set Duration to 03h -> minimum event duration ~= 30 msec
* If acceleration an all axis is below the threshold for more
* than 30 ms than device is falling down */
lis3dh_int1_gen_threshold_set(&dev_ctx, 0x16);
lis3dh_int1_gen_duration_set(&dev_ctx, 0x02);
/* Configure free-fall recognition
*
* Set interrupt condition (AND) for x, y, z acc. data below
* threshold */
lis3dh_int1_gen_conf_get(&dev_ctx, &int1_cfg);
int1_cfg.aoi = PROPERTY_ENABLE;
int1_cfg.zlie = PROPERTY_ENABLE;
int1_cfg.ylie = PROPERTY_ENABLE;
int1_cfg.xlie = PROPERTY_ENABLE;
lis3dh_int1_gen_conf_set(&dev_ctx, &int1_cfg);
/* Set device in HR mode */
lis3dh_operating_mode_set(&dev_ctx, LIS3DH_HR_12bit);
/* Set Output Data Rate to 100 Hz */
lis3dh_data_rate_set(&dev_ctx, LIS3DH_ODR_100Hz);
/* USER CODE END 2 */
/* Infinite loop */
/* USER CODE BEGIN WHILE */
while (1)
{
/* USER CODE END WHILE */
/* USER CODE BEGIN 3 */
/* Check INT 1 pin or read source register */
lis3dh_reg_t all_source;
lis3dh_int1_gen_source_get(&dev_ctx, &all_source.int1_src);
if (!(all_source.byte & 0x3f))
{
sprintf((char *)tx_buffer, "freefall detected\r\n");
tx_com(tx_buffer, strlen((char const *)tx_buffer));
}
}
