I noticed the ESP core should have support for high priority interrupts (from the .h files describing the CPU found in the RTOS SDK).
I would like to know how can the high priority interrupts be configured?
I would like to make the SPI interrupt a high priority one, so it could have it's own interrupt vector (not using the current "shared handler") to avoid the rather high >1uS latency of the ETS_INT_ATTACH() functions.
Any hint/comment would be greatly appreciated.
Regards,
MCulibrk
High priority interrupts
Re: High priority interrupts
Postby dkaufmann » Tue Nov 22, 2016 7:47 pm
Hi,
i am also looking for a solution to have a faster GPIO interrupt. Entering and reading and input with the standard API functions takes >2.5us which is way too slow (at 160MHz this is around 400 cycles!!). Could you find a solution?
A high priority GPIO interrupt would be nice. Or do you think the GPIO_INPUT_GET function is too slow?
Thank you for any help
i am also looking for a solution to have a faster GPIO interrupt. Entering and reading and input with the standard API functions takes >2.5us which is way too slow (at 160MHz this is around 400 cycles!!). Could you find a solution?
A high priority GPIO interrupt would be nice. Or do you think the GPIO_INPUT_GET function is too slow?
Thank you for any help
Re: High priority interrupts
Postby roc2 » Thu Dec 15, 2016 3:04 pm
dkaufmann wrote:Hi,
i am also looking for a solution to have a faster GPIO interrupt. Entering and reading and input with the standard API functions takes >2.5us which is way too slow (at 160MHz this is around 400 cycles!!). Could you find a solution?
A high priority GPIO interrupt would be nice. Or do you think the GPIO_INPUT_GET function is too slow?
Thank you for any help
Hi,is your problem solved and how to solve this question??
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