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TDA2SX: [TDA4]IPC/LLD Benchamrk issue

Part Number: TDA2SX

Hi, I want to test IPC/LLD Benchmarking in TDA4_EVM device.

1. In 《Jacinto Training Series_J7 IPC.pdf》doc, we can see IPC/LLD Benchmarking relation info, but can not find in the RTOS SDK VERSION of PSDK_RTOS_AUTO_j7_06_01_00_15,

Please, tell me the IPC/LLD Benchmarking source code and how to run it ?

2. I can do normal test echo_test by SPL loading, but can not test ex01_bios_2core_echo_test, ex02_bios_2multicore_echo_test, ex03_bios_2core_echo_test case,why?

3. I try to modify echo_test code , to test IPC between mpu1_0(linux) and C66X_1 , so I use Timestamp_get64() to get start timestamp and end timestamp in core C66X_1 ,

why System_printf("delta_time: %llu", endTime-startTime) can not work ?

Pls, help me, Thank you so much.