We are now trying to use ADSP21564 on the target AMP product developments. The IDE platforms we used are CCES 3.0.2 and SigmaStudio+ 2.3.0. We have tested related designs on ADSP21565 with the same IDE platforms. And the test results showed that all jobs done ok on ADSP21565, without any noises generated when using ASRC. But it is very strange that noises generated after we switched it from ADSP21565 to ADSP21564. We have checked the inputs and outputs configurations of its ASRC, and confirmed that all are OK. So, we concluded that the noise are generated by the ASRC units of ADSP21564. The hardware connections are as below:
Detailed configurations and connections are as pictures below:
Moreover, we tested the inputs of A2B with ASRC unconnected and its outputs are with no noises; we also tested the tone generator driven by the PCG directly and it is also with no noises.
Could you help me to confirm what the problems are? Is it possible that ASRCs on ADSP21564 are not configured correctly or it is an ASRC hardware issue?
Thank you!
Edit Notes
fixed a typo.[edited by: AlpineHumorhxu at 5:38 AM (GMT -4) on 30 Jun 2025]