Part Number:TDA2EX17EVM
Hi,
We have some observations with respect to PRCM module.
As this is part of Vision SDK, we need inputs for resolving the issue we are observing.
We need to ensure that the execution on OCMC RAM should also have a good performance.
We debugged and understood some factors that may be affecting the performance.
Our understanding/observation:
- We checked for the PRCM configuration by running the Get_PRCM_config.gel.
Upon performing the same, the observation is that DPLL for MPU is configured for 1GHz as per the message displayed on CCS console.
- Also, upon trying to find the API timings we have the following query:
- MPU (A15) accesses the OCMC RAM through L3 main.
- L3 main is derived from the CORE_CLK and CORE_X2_CLK correspondingly.
- CORE_X2_CLK is configured in the register CM_DIV_H12_DPLL_COREwith Register address 0x4A00513C.
- Current configuration in VSDK 2_12_3 is CM_CORE_AON__CKGEN_CM_DIV_H12_DPLL_CORE (0x4A00513C) = 0x00000204.
The API timings for CAN_write() observed is 40 ms.
- When this register setting was changed to 0x00000202
The API timings for CAN_write() observed is approx. 30 ms
Please respond with your comments on this.
Regards,
Shivanand