PROCESSOR-SDK-J7200: J7200 MCUSW PWM example code

Jay Sun

Hi TI

For the J7200 EVM board, we are testing the MCUSW PWM example code (as shown in image1 below).

The output messages can be seen from the console (below Image 2), but when we use oscilloscope to measure the hardware,

we can't see the PWM output signal( below image3 ). The measurement point is on the TP26 of J7200 EVM board (below image4 ).

Do you have any ideas on this?

MCUSW: Pwm User Guide (ti.com)

image1

image2

image3

image4

over 4 years ago

0 Jay Sun over 4 years ago

Expert 1095 points

Hi TI

We would like to add that we tried to put some debug messages into the source code.

The debug message output is as below. It seems that there is no problem with the flow of the program,

the source code as shown in the figure below.

But we can't see the PWM output signal using the oscilloscope.

Set DUTY :

Set Period

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0 Vineet Roy over 4 years ago in reply to Jay Sun

TI__Mastermind 37435 points

Unlocking the thread

Regards

Vineet

+1 Erick Narvaez over 4 years ago in reply to Vineet Roy

TI__Mastermind 36307 points

Hi,

Apologies for the delay here.

For J7200, the testpoint is actually different than on J721E. Please see the output of the test for the testpoint that you should use, it should actually be "J5F Pin F15".

Regards,

Erick

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PROCESSOR-SDK-J7200: J7200 MCUSW PWM example code

Hi TI

We would like to add that we tried to put some debug messages into the source code.

The debug message output is as below. It seems that there is no problem with the flow of the program,

the source code as shown in the figure below.

But we can't see the PWM output signal using the oscilloscope.