RE: Cannot capture high speed (115Khz) GPIOTE interrupts [without ppi]

Karl Ylvisaker — Mon, 31 Aug 2020 11:32:32 GMT

Hello,

Could you elaborate some more on how you are measuring how many of the interrupts you are missing?
Is the second line of the included plot the PIN_OUT2?
Also, if I may ask, what are you going to control / do with the interrupt? Depending on what you will use the interrupt for, PPI may considerably reduce the CPU time required to handle your interrupts.

What did you change the two defines from sdk_config.h to? What are their current values?
GPIOTE_CONFIG_NUM_OF_LOW_POWER_EVENTS is applicable to number of PORT events ( low-accuracy GPIOTE interrupts, using the SENSE feature of the GPIO module ).

I noticed that you have clicked "Verified answer" on your comment, which indicates that the comment answered your question. I recommend only using the "Verified answer" button when a comment indeed answers the question you had.

Best regards,
Karl

RE: Cannot capture high speed (115Khz) GPIOTE interrupts [without ppi]

boraciner — Fri, 28 Aug 2020 06:08:15 GMT

I want to run my own logic in in_pin_scl_handler that's why I cannot use PPI. What can I do?