Ensure the decimation factor is correctly configured in CIC filter setup. The decimation factor should be an integer, as it dictates how much the input sample rate is reduced. This factor has a direct impact on the sample time of the output signal. If the decimation factor is not an integer, it can cause inconsistencies in the output sample time, potentially leading to a variable-size signal. By ensuring that the decimation factor is correctly set, you can maintain a consistent and discrete sample time.
For more details, look into the following documentation:
