How to delay microsecond

[cuongle]

Hi all, I'm a new member.
I want to read analog signal via adc with sample rate about 48khz so when I read via adc and delay about 20us. But I can't find the way how to delay microsecond in esp-idf. Please help me!
Thanks all so much.

[kolban]

It might be that the function called "ets_delay_us(value)" is what you could use. Its proto type is defined in <rom/ets_sys.h>.

[cuongle]

It might be that the function called "ets_delay_us(value)" is what you could use. Its proto type is defined in <rom/ets_sys.h>.

I have done it by your support. Thank you so much.