Linux driver development | Linux interrupt
Linux interrupt
Using interrupts in IM6ULL bare metal requires a lot of work, such as configuring registers, enabling IRQ and so on. The Linux kernel provides a perfect interrupt framework. We only need to apply for interrupts and register interrupt processing functions. It is very convenient to use and does not need a series of complex regist ...
Posted by Huntress on Thu, 18 Nov 2021 21:18:52 -0800
IMX6ULL - Linux root file system (rootfs) build
Author: zzssdd2
E-mail: zzssdd2@foxmail.com
1, Ubuntu-base20.04.3
Ubuntu has officially made the root file system of base version of each architecture and version. Just download it and make a few changes.
download Ubuntu Base 20.04.3 LTS (Focal Fossa)
ubuntu-base-20.04.3-base-armhf.tar.gz 2021-08-19 10:56 22M
decompression
mkdir rootfs
...
Posted by Vasko on Sat, 30 Oct 2021 00:23:53 -0700
Linux Bare Machine Development|EPIT Timer
EPIT Timer
1.Introduction to EPIT Timer
EPIT (Enhanced Periodic Interrrupt Timer), an enhanced periodic interrupt timer, is primarily used to complete the periodic interrupt timer. EPIT is a 32-bit timer that provides precise timing interrupts when enabled. Its structure is illustrated below
Multiplexer to select clock source, there are ...
Posted by dumdumsareyum on Sat, 11 Sep 2021 09:53:23 -0700