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RTOS/TDA2EXEVM: i2c halt

Part Number: TDA2EXEVM

Tool/software: TI-RTOS

Hi Expert,

I'm running PROCESSOR SDK VISION v03.04.00 rtos on tda2eg.
Modify and run CSL i2c test present here:
PROCESSOR_SDK_VISION_03_04_00_00\ti_components\drivers\pdk_01_10_00_08\packages\ti\csl\example\i2c\i2c_led_blink

Test i2c1 is normal in xc5777x evm.

Evm i2c5 and custom board i2c1/5 execution will be halt in while (I2CMasterBusBusy(SOC_I2Cx_BASE)==0).

On custom board:
I2c1 does not have any pad use.
I2c5 bus have i2 device, previously used linux to confirm that i2c5 is working.

Could you please give me some advise?
Thanks in advance.