AWR1642: Need to count an external interrupt

Steven Sheu

Intellectual 400 points

Part Number: AWR1642

I need to count the occurrence of an external interrupt from a GPIO pin within a time period.

Therefore, I need to know how to set a timer which can periodically generate an interrupt when a specific time is up.

I also need to know how to make an ISR for the external interrupt from a GPIO pin.

Could someone tell me any solution or related resource I can use?

Thanks in advanced. .

over 7 years ago

0 Cesar over 7 years ago

TI__Guru*** 148224 points

Hi,

I assume your are doing this work in the mmWave SDK environment using TI RTOS. Is this correct?

Thank you
Cesar

0 db_woodall over 7 years ago

TI__Mastermind 21025 points

Is this test code or something to be used permanently? A simpler way to do it would be to count GPIO toggles within a given number of DSP (600MHz) clocks.

0 Steven Sheu over 7 years ago in reply to Cesar

Intellectual 400 points

Yes, I am working on the mmWave SDK and try to add my feature on the Demo project.

0 Steven Sheu over 7 years ago in reply to db_woodall

Intellectual 400 points

No, it won't be permanently. The frequency of the external interrupt varies all the time.

0 LeonardEllis over 7 years ago

TI__Guru 71526 points

6/29/18[LE]>unlock

0 db_woodall over 7 years ago in reply to Steven Sheu

TI__Mastermind 21025 points

Hi, did you find a solution to this? You would need to use BIOS for a new timer, or use an existing periodic event (eg. frame, chirp, etc). And check the GPIO test code for usage information.

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AWR1642: Need to count an external interrupt