2021-04-16 08:57 AM
LSM3DSO IMU: How many words with high compression (3xC) [each XL or GY] can be sent in a row by IMU? I suspect not more than twice in a row. For example:
...
-GY 3xC
-Timestamp
-GY 3xC
or
...
-XL 3xC
Timestamp
-XL 3xC
In other words, this case is not possible:
...
GY 3xC
Timestamp
GY 3xC
Timestamp
GY 3xC
...
Am I right?
2021-04-19 08:41 AM
Hi @BDiva.1 ,
as reported in the application note AN5192, p.107:
FIFO compression supports three different levels of compression:
• NC, not compressed, if the difference between the actual and previous data is higher than 128 LSB: one sensor sample is stored in one FIFO word;
• 2xC, low compression, if the difference between the actual and previous data between 16 and 128 LSB: two sensor samples are stored in one FIFO word;
• 3xC, high compression, if the difference between the actual and previous data is less than 16 LSB: three sensor samples are stored in one FIFO word.
So you should be able to store up to 3 sample sin a single FIFO word... please check also the answer to your other post if it can be of some help.
-Eleon
2021-04-29 11:01 AM
Sorry you have not answered my question.
2021-04-30 12:26 AM