BMI088 initialization failed, SensorAPI, Coines

[Greg_]

Hello! I have App board 3.0 with BMI088 shuttle board

I'm trying to run BMI08x_SensorAPI/examples/bmi08x/read_sensor_data example from GitHub

App log:

Shuttle ID is 0x66
I2C Interface
Accel chip_id: 0x1e
bmi08g_init Error [-2] : Communication failure
init_bmi08 Error [-2] : Communication failure
bmi08g_set_int_config Error [-2] : Communication failure
bmi08g_get_regs Error [-2] : Communication failure
enable_bmi08_interrupt Error [-2] : Communication failure
bmi08g_set_int_config Error [-2] : Communication failure
disable_bmi08_interrupt Error [-2] : Communication failure

I did some digging with gdb and found that the initial error code is -10 and comes from:

dev->intf_rslt = dev->read(reg_addr, reg_data, len, dev->intf_ptr_gyro);
from static int8_t get_regs(uint8_t reg_addr, uint8_t *reg_data, uint32_t len, struct bmi08_dev *dev)
from bmi08g.c

How to solve this issue?

Regards, Greg

[ashnichloe67]

Hey there,

If you want to resolve this issue, you first need to make sure you check:

 Ensure all wires are securely connected.
Verify the I2C address in your code matches the BMI088's.
Power Supply: Make sure the board is properly powered.
Check if the I2C lines have the correct pull-up resistors.
 Double-check the sensor initialization sequence in your code.

[Greg_]

Thank you for your reply. Here's an update on my progress:

I am using an Application Board 3.0 with a Shuttle Board 3.0 and I believe that the wiring is correct, and all resistors are in the right places.

The sample code I am using can be found here:

• BMI08x Sensor API
• COINES SDK

I have tested both the primary and secondary I2C addresses without success. Only the accelerometer responds, as I mentioned before ("Accel chip_id: 0x1e" in a log).

I suspect that the issue is not with the hardware or wiring, but with the initialization sequence. I hope someone can provide me with guidance towards a solution.

Regards, Greg

[BSTRobin]

Hi Greg_,

Thanks for your inquiry.
You can capture I2C waveform by logic analyzer and see what what happened on the bus?