Other Parts Discussed in Thread: MATHLIB
Environment
- Board : TMS320C6748
- CCS8.3.1
- compiler version : 8.3.4
- Used library : DSP_LIB, MATH_LIB
- L1_CACHE_ENABLED
- All the data stored in the DDR2
From McASP example code, I experiment a signal processing algorithm.
The experiment condition is:
Sampling rate : 16000Hz
Buffer size : 512
With L1_CACHE_ENABLED and log10sp_v, there is noise of the speaker output, which is not when I comment out L1_CACHE_ENABLED and log10sp_v.
Of course I verified the clean output value in the code before It is transferred to speaker output.
Therefore, It seems that the noise is occurred in the codec.
In this case, how could I remove the noise without disabling L1 cache and MATH_LIB?
Any advice or information request is welcome.
Thank you