About sebmadgwick

I suggest you scrutinise your I2C implementation. Use a logic analyser to double check I2C transactions against Bosch documentation. Initially focus on the transaction sequence rather than actual data. For example, are all ACKs and NACKs as expected, do you account for dummy bytes where appropriate, etc. ... View more

The example code does not run without issue. The example code results in poor accelerometer noise, and does not compile due to use of definitions (BMI08X_ACCEL_SYNC_DATA_RDY_INT and BMI08X_GYRO_DATA_RDY_INT) that have since been renamed in the API.  I am talking about this example code: https://github.com/BoschSensortec/BMI08x-Sensor-API/blob/master/DataSync.md The example code is in error according to your own statements: "you should place "bmi08a_load_config_file(&bmi088);" right after the "bmi08a_soft_reset(&bmi088);" "After soft-reset, the code brings BMI088 accel and gyro to normal mode. Then the code loads config file." I do not require further support on this topic but I suggest the example code is fixed so that others do not have the same problem.  I am happy to create a pull request if that would be of use. ... View more

I can confirm that this change fixes the issue. Thank you. My original code follows the example provided by Bosch. Anyone else following this example will have the same issue. I suggest that the example is updated.  There are other errors in the example code which are straightforward to fix.  Would you like to open a pull-request with the fixes? ... View more

I do not have an issue getting synchronization working. The problem is the accelerometer noise. The problem can be demonstrated with a simple configuration (no synchronization). The following configurations uses the SPI interface and read data at 400 Hz using bmi08a_get_data. The only change is the omission of bmi08a_load_config_file. You should be able to replicate this.   Configuration A - No issue Configuration B - Noise very poor   ... View more

I can confirm that bmi08a_load_config_file is successful (returns 0) when using the SPI interface and a read_write_len of 32.  However, I have found that use of bmi08a_load_config_file results in extremely poor accelerometer performance (as described in this post),  I don't know if these issue are related - the commonality is that things go wrong when we load the config file and work fine when we don't. ... View more