The interrupt response time of CYW20719B2

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JiZh_4619191
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Hi,

I configured a cyw20719b2 pin to falling edge interrupt, and found that the interrupt response time is 59 microseconds.

Is there and method to make the interrupt response time as short as possible?

 

Best regards,

Jian

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Owen_Zhang123
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The mcu uses event callback to handle the interrupt. It is normal for your test as the GPIO may also take some time. 

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Owen_Zhang123
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How did you test the response time?

What do you use the interrupt for?

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Hi,

1) At the beginning of Interrupt Service Routine(ISR), a wiced_hal_gpio_set_pin_output() set a GPIO high, at the end of ISR, a wiced_hal_gpio_set_pin_output() set the same GPIO low. And read the response time from a oscilloscope.

2)I would like to receive data from a peripheral chip.

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Owen_Zhang123
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5 questions asked 500 solutions authored 250 sign-ins

The mcu uses event callback to handle the interrupt. It is normal for your test as the GPIO may also take some time. 

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