BMI085: bmi08a_load_config_file Error [-6] : Config stream error

[ysqcn]

Hi,

We are trying to migrate our own BMI085 driver to https://github.com/BoschSensortec/BMI08x-Sensor-API, howeven when run read_sensor_data.c, we get bellow error message:

BMI08x initialization success!
Accel chip ID - 0x1f
Gyro chip ID - 0xf
Uploading config file !
bmi08a_load_config_file Error [-6] : Config stream error
init_bmi08x     Error [-6] : Config stream error

It fails when check BMI08X_REG_ACCEL_INTERNAL_STAT:

                    if (rslt == BMI08X_OK)
                    {
                        /* Wait till ASIC is initialized. Refer the data-sheet for more information */
                        dev->delay_us(BMI08X_MS_TO_US(BMI08X_ASIC_INIT_TIME_MS), dev->intf_ptr_accel);

                        /* Check for config initialization status (1 = OK)*/
                        rslt = bmi08a_get_regs(BMI08X_REG_ACCEL_INTERNAL_STAT, &reg_data, 1, dev);
                    }

In our original driver, we don't do much configure to Accel, and we can read out the Accel samples from register 0x12-0x17, like bellow

---Acc: 2741  6050  60997   (13.125013 13.125013 13.125013)
---Acc: 2744  6065  60984   (13.139379 13.139379 13.139379)
---Acc: 2734  6063  60982   (13.091495 13.091495 13.091495)
---Acc: 2749  6074  60980   (13.163321 13.163321 13.163321)

Could you comment where the problem would be?

I already use the latest code :

commit 631a966891885643f180e18e94870411b8f4c3fc (HEAD -> master, tag: bmi08x_v1.5.8, origin/master, origin/HEAD)
Author: Bosch Sensortec <github@bosch-sensortec.com>
Date:   Wed Mar 16 19:34:09 2022 +0100

    Fixed bugs related to config file loads on certain platforms.

Thanks

-Austin

[BSTRobin]

Hi ysqcn,

There was BMI08x example code attached on STM32. You could compare with your code and run it again.

[ysqcn]

Thanks. The problem is in our bmi08x->write hook which needs some delay to ensure the massive write (46bytes) are actually written into the chip.

[BSTRobin]

Welcome, ysqcn.