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UCD3138ACCEVM149: I cannot see the PWM signal on DPWM test point of UCD3138ACCEVM149 (without EVM150)

Part Number: UCD3138ACCEVM149
Other Parts Discussed in Thread: UCD3138A, UCD3138, FUSION-DIGITAL-POWER-STUDIO



I bought a UCD3138ACCEVM149 to evaluate the soft for UCD3138A chip.

 I download the file ‘LLCHBFirmware-1.2’.

Of course, the file ‘UCD3138_LLC_HB_UCD3138A.x0’ of it can be download to UCD3138ACCEVM149 and operate correctly. And we can watch and config it through ‘FUSION-DIGITAL-POWER-STUDIO’.

Through FUSION-GUI, I can use memery dubuger to read or write the registers.

For the first step, I just want to confirm the board work properly, and wonder if I can change the PWM signal by rewrite the registers.

However, when I want to watch the PWM signal, there are nothing genarated at the test points of DPWM0~3A or DPWM0~3B.

then, I also download the [HSFBFirmware-1.1 ], and the result is the same.

I dont know is there any method to debug it. 

Or is there something needed to setup for the operation with out EVM150?

Would you please help with this problem?

thank you !

Xiaofeng Wu