About keizerr

Excuse me,  I have already made a brief description of my  application in this post: https://community.bosch-sensortec.com/t5/MEMS-sensors-forum/Possible-bug-in-BMA456-driver/m-p/46299#M8334 and as it might be apparent, I decided to focus on hearable features of BMA456. So, I would like to know, what information about my application do you exactly need? What shall be added to this description in order to start a conversation about the issues I raised on the forum? Regards, Roman ... View more

Hello BSTRobin, Sorry, but...seriously? I have already explained the concepts of my application as thoroughly as my company's rules let me do that. Here: https://community.bosch-sensortec.com/t5/MEMS-sensors-forum/Possible-bug-in-BMA456-driver/m-p/46299#M8334 ... View more

Hello, Thanks for your response. The complete source code is just this: #include "main.hpp" #include <stdio.h> #include "bma456h.h" #include "bma4_common.h" #include "retarget.h" #include "bma4.h" /******************************************************************************/ /*! Macro definition */ /*! Buffer size allocated to store raw FIFO data */ #define BMA456H_FIFO_RAW_DATA_BUFFER_SIZE UINT16_C(1024) /*! Length of data to be read from FIFO */ #define BMA456H_FIFO_RAW_DATA_USER_LENGTH UINT16_C(1024) /*! Setting a watermark level in FIFO */ #define BMA456H_FIFO_WATERMARK_LEVEL UINT16_C(192) /*! Number of accel frames to be extracted from FIFO * Calculation: * fifo_watermark_level = 600, accel_frame_len = 6. * fifo_accel_frame_count = (600 / 6) = 100 frames */ #define BMA456H_FIFO_ACCEL_FRAME_COUNT UINT8_C(32) struct bma4_int_pin_config bmint = {0}; /******************************************************************************/ /*! Function */ /* This function starts the execution of program */ int main(void) { /* Reset of all peripherals, Initializes the Flash interface and the Systick. */ HAL_Init(); /* Configure the system clock */ SystemClock_Config(); /* Initialize all configured peripherals */ MX_GPIO_Init(); MX_USART2_UART_Init(); MX_I2C1_Init(); RetargetInit(&huart2); printf("Start! \n\r"); uint8_t anymot_en[2] = {0x28, 0x3F}; /* Status of API are returned to this variable */ int8_t rslt; /* Accelerometer configuration structure */ struct bma4_accel_config acc_conf = {0}; struct bma456h_any_no_mot_config any_mot = {0}; struct bma456h_auto_low_power balp = {0}; /* Sensor initialization configuration */ struct bma4_dev dev = {0}; /* Number of accelerometer frames */ uint16_t accel_length; /* Variable to idx bytes */ uint16_t idx = 0; /* Variable to store the available frame length count in FIFO */ uint8_t frame_count; /* Number of bytes of FIFO data */ uint8_t fifo_data[BMA456H_FIFO_RAW_DATA_BUFFER_SIZE] = {0}; /* Array of accelerometer frames -> Total bytes = * 100 * (6 axes bytes(+/- x,y,z)) = 600 bytes */ struct bma4_accel fifo_accel_data[BMA456H_FIFO_ACCEL_FRAME_COUNT] = {0}; /* Initialize FIFO frame structure */ struct bma4_fifo_frame fifoframe = {0}; /* Variable that contains interrupt status value */ uint8_t int_status = 0; /* Variable to hold the length of FIFO data */ uint16_t fifo_length = 0; uint16_t watermark = 0; /* To set the watermark level in FIFO */ uint16_t wm_lvl; /* Function to select interface between SPI and I2C, according to that the device structure gets updated */ rslt = bma4_interface_selection(&dev); bma4_error_codes_print_result("bma4_interface_selection status", rslt); bma4_soft_reset(&dev); HAL_Delay(500); /* Initialize BMA456H */ rslt = bma456h_init(&dev); bma4_error_codes_print_result("bma456h_init status", rslt); rslt = bma456h_write_config_file(&dev); /* Enable the accelerometer sensor */ rslt = bma4_set_accel_enable(BMA4_ENABLE, &dev); bma4_error_codes_print_result("bma4_set_accel_enable status", rslt); /* Accelerometer configuration settings */ acc_conf.odr = BMA4_OUTPUT_DATA_RATE_100HZ; acc_conf.bandwidth = BMA4_ACCEL_NORMAL_AVG4; acc_conf.range = BMA4_ACCEL_RANGE_2G; /* Set the accel configurations */ rslt = bma4_set_accel_config(&acc_conf, &dev); bma4_error_codes_print_result("bma4_set_accel_config status", rslt); /* Disabling advance power save mode as FIFO data is not accessible in advance low power mode */ rslt = bma4_set_advance_power_save(BMA4_DISABLE, &dev); bma4_error_codes_print_result("bma4_set_advance_power_save status", rslt); /* Clear FIFO configuration register */ rslt = bma4_set_fifo_config(BMA4_FIFO_ALL, BMA4_DISABLE, &dev); bma4_error_codes_print_result("bma4_set_fifo_config disable status", rslt); /* Set FIFO configuration by enabling accel. * NOTE 1: The header mode is enabled by default. * NOTE 2: By default the FIFO operating mode is FIFO mode. */ rslt = bma4_set_fifo_config(BMA4_FIFO_ACCEL, BMA4_ENABLE, &dev); bma4_error_codes_print_result("bma4_set_fifo_config enable status", rslt); /* Update FIFO structure */ fifoframe.data = fifo_data; fifoframe.length = BMA456H_FIFO_RAW_DATA_USER_LENGTH; /* To enable headerless mode, disable the header. */ rslt = bma4_set_fifo_config(BMA4_FIFO_HEADER, BMA4_DISABLE, &dev); bma4_error_codes_print_result("bma4_set_fifo_config status", rslt); printf("FIFO is configured in headerless mode\n"); HAL_I2C_Master_Transmit(&hi2c1, BMA4_I2C_ADDR_PRIMARY << 1, anymot_en, 2, HAL_MAX_DELAY); rslt = bma456h_get_any_mot_config(&any_mot, &dev); if (rslt == BMA4_OK) { any_mot.threshold = 129; any_mot.duration = 16; any_mot.intr_bhvr = 0; any_mot.slope = 1; rslt = bma456h_set_any_mot_config(&any_mot, &dev); } rslt = bma4_get_int_pin_config(&bmint, 0, &dev); if (rslt == BMA4_OK) { bmint.edge_ctrl = 0; bmint.input_en = 0; bmint.lvl = 1; bmint.od = 0; bmint.output_en = 1; rslt = bma4_set_int_pin_config(&bmint, 0, &dev); } rslt = bma4_get_int_pin_config(&bmint, 1, &dev); if (rslt == BMA4_OK) { bmint.edge_ctrl = 0; bmint.input_en = 0; bmint.lvl = 1; bmint.od = 0; bmint.output_en = 1; rslt = bma4_set_int_pin_config(&bmint, 1, &dev); } bma4_set_interrupt_mode(BMA4_LATCH_MODE, &dev); rslt = bma456h_map_interrupt(BMA4_INTR1_MAP, BMA456H_ANY_MOT_INT, BMA4_ENABLE, &dev); rslt = bma456h_map_interrupt(BMA4_INTR2_MAP, BMA4_FIFO_WM_INT, BMA4_ENABLE, &dev); bma4_error_codes_print_result("bma456h_map_interrupt status", rslt); wm_lvl = BMA456H_FIFO_WATERMARK_LEVEL; rslt = bma4_set_fifo_wm(wm_lvl, &dev); bma4_error_codes_print_result("bma4_set_fifo_wm status", rslt); rslt = bma4_get_fifo_wm(&watermark, &dev); bma4_error_codes_print_result("bma4_get_fifo_wm status", rslt); rslt = bma456h_feature_enable(BMA456H_AUTO_LOW_POWER_EN, BMA4_ENABLE, &dev); rslt = bma456h_get_auto_low_power_config(&balp, &dev); if (rslt == BMA4_OK) { balp.lp_odr = 3; balp.no_motion = 0; balp.time_out = 1; balp.time_out_dur = 150; balp.pwr_mgt = 1; rslt = bma456h_set_auto_low_power_config(&balp, &dev); } printf("FIFO watermark level is %d\n", watermark); while (1) { rslt = bma4_read_int_status_1(int_status, &dev); bma4_error_codes_print_result("bma456h_read_int_status", rslt); if ((rslt == BMA4_OK) && (int_status & 0x02)) { rslt = bma4_get_fifo_length(&fifo_length, &dev); bma4_error_codes_print_result("bma4_get_fifo_length status", rslt); printf("FIFO data bytes available : %d\n", fifo_length); printf("FIFO data bytes requested : %d\n", fifoframe.length); /* Read FIFO data */ rslt = bma4_read_fifo_data(&fifoframe, &dev); bma4_error_codes_print_result("bma4_read_fifo_data status", rslt); accel_length = BMA456H_FIFO_ACCEL_FRAME_COUNT; if (rslt == BMA4_OK) { printf("Requested data frames before parsing: %d\n", accel_length); /* Parse the FIFO data to extract accelerometer data from the FIFO buffer */ rslt = bma4_extract_accel(fifo_accel_data, &accel_length, &fifoframe, &dev); printf("Parsed accelerometer data frames: %d\n", accel_length); /* Calculating the frame count from the available bytes in FIFO * frame_length = (available_fifo_bytes / acc_frame_len) */ frame_count = (fifo_length / BMA4_FIFO_A_LENGTH); printf("Available frame count: %d\n", frame_count); /* Print the parsed accelerometer data from the FIFO buffer */ for (idx = 0; idx < frame_count; idx++) { printf("ACCEL[%d] X : %d Y : %d Z : %d\n", idx, fifo_accel_data[idx].x, fifo_accel_data[idx].y, fifo_accel_data[idx].z); } } // break; } } return rslt; } "FIFO not working" in this case means, that when this line is commented out: rslt = bma456h_write_config_file(&dev); I am able to see the FIFO data via logic analyzer or PuTTY. Watermark interrupts are being correctly asserted. But when I write the config file, no data can be seen via mentioned tools. So I cannot use FIFO when using application necessary BMA456 features like any motion or auto low power. Thanks, Roman. ... View more

Hello BSTRobin, My application is the detector of whether the car is currently driving, actively parking or standing still. Seems to be quite simple, though some problems are always present. The application has to be as low-power as possible, so I need the accelerometer to be sleeping as much as possible. That is why I need the auto low power mode of BMA456, which I have to configure with the settings stated in the post. There is currently no ability to do that though. The accelerometer has to wake up when acceleration data goes over the preset threshold (any_motion feature). And has to fall asleep if no any_motion event is detected for 3 seconds (already the auto low power settings). Also, I need FIFO to read out the data (in both low-power and normal modes). And that's it!  So, could you please help me with my issue? Regards, Roman. ... View more