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CCS/RM48L952: RM48L952

user5269270
Intellectual 705 points

Part Number: RM48L952

Tool/software: Code Composer Studio

Hello,

 

After the study of NHET module, Is hetpin can able to generate (25-27)MHz ?.

HR prescalar output i.e HR clock is going to IO Control module which I have shown below,

 

 Below is the IO PIN Control module, HR clock is given to HR block.

What is timer data in? How to configure the same in HR control logic and how to route the same for HETDOUT

Our requirement is to generate frequency of (25-27)MHz in HET[x]? How to achieve the same. 

2364.query.docx

Thanks and Regards,

Anand Kumar 

  • 0
    TI__Guru**** 199146 points

    Hello Anand,

    1. The N2HET pins used as general-purpose inputs are sampled on each VCLK2 period.

    2. The N2HET pins used as N2HET functional pins output waveforms using both high resolution clock and loop clock. If you use a N2HET pin to generate a PWM signal, The minimum period of PWM is (max of CNT instruction + 1)*LRP = 2LRP. One PWM requires at least 2 NHE instructions, so the smallest LRP=4. The smallest PWM period = 8*VCLK2 period.

    So it is impossible to generate a PWM signal with 25~27MHz frequency.

  • 0 in reply to QJ Wang
    Intellectual 705 points

    Hello Wang,

    Thanks for your reply....

    regards,

    Anand Kumar