Does the imx8mp processor have a precise timer with absolute accuracy that is not affected by system scheduling,for example, if I want to time 1us, I can implement a hardware timer with a precision of 1us?
anyone knows?
1. You need import them in dts.
https://lore.kernel.org/linux-arm-kernel/eb608fd4-7b97-8d7b-5855-0f953832bf9a@denx.de/T/
https://github.com/torvalds/linux/blob/master/arch/arm64/boot/dts/freescale/imx8mp.dtsi
2.For userspace api, we don't have such demo.
Please refer General Purpose Timer (GPT)
can i use it in user space or applications?