topic Re: Any NXP SDK API to provide delay in microseconds resolution? in LPC Microcontrollers

Any NXP SDK API to provide delay in microseconds resolution?

misterbee — Wed, 08 Jun 2022 01:46:27 GMT

I wonder if NXP SDK for LPC5411X provides any HAL API to introduce delay in microseconds resolutions?

ZhangJennie — Wed, 08 Jun 2022 05:47:39 GMT

HI misterbee

SDK doesn't have such an API

We suggest using timer to get a accurate delay.

Thanks,

Jun Zhang

misterbee — Wed, 15 Jun 2022 08:29:37 GMT

Thank you but how timer can be used as delay?

I am talking about delay that needed in between e.g. I2C command. I don't think timer is relevant.

jay_heng — Thu, 16 Jun 2022 08:14:42 GMT

There is common API: SDK_DelayAtLeastUs(), it might not be accurate,but the resolution is us.

jay_heng — Thu, 16 Jun 2022 08:21:17 GMT

Enable HW timer first, then poll timer counter value until the delay time is met.