About Frankie

The figure below was captured from BMI085/088 datasheet.  Does it mean different measurement range will have different nonlinearity vlaue? And typical value +/-0.05% FS is only for FS1000 and FS2000 range. ... View more

How to set the registers to get ultra low power consumption for step counter? ... View more

I would like to get the timestmap for every accel and gyro sample. The ODR of accel and gyro is 100Hz and data ready interrupt is enabled and mapped to interrupt pin.  The accel and gyro will have a timestamp from kernel while received a data ready interrupt signal from BMI085. Can I use this timestamp from kernel instend of the sensor time from register 0x18-0x1A?   ... View more

Where can I get more details about register 0x5B and 0x5C? These two registers are not mentioned in datasheet. And why only 4 bit for register 0x5B(asic_lsb = ((index / 2) & 0x0F);)  and shift 4 bit right to get msb for register 0x5C? I try to get the content of register 0x5b and 0x5c after config file is downaloaded and it showed 0x10(register 0x5C) and 0x00(register 0x5B). The  setting of dev->read_write_len is 32 and the length of BMA4_CONFIG_STREAM_SIZE is 6144 bytes, the last write/index should be 6144-32=6112(0x17E0). So register 0x5C should be (6112/2 >>4)=0xBF and register0x5B= (6112/2)&0x0f=0x0? Obviously, the content of registetr 0x5B and ox5C are not what I expected.   ... View more