interrupt

Feb 15

Building A Bare-Bones 3 MB Linux Kernel For A Custom FPGA SoC

Astralvx

Disclaimer: it’s a 3.9 MB Linux kernel ; ) N.b. whilst I will try to explain concepts to those new to this field, this blog assumes a lot of fundamental knowledge on FPGAs, RTL development, Vivado, Petalinux, SOC/CPU architecture, memory managers, memory hardware, SPI NOR flash memory, reset...

serial linux verilog busybox dsp hardware embedded kernel cpu processor fpga spi fabric xilinx u-boot digilent sf schematic rtl all posts reset synthesis bootloader soc cache implementation interrupt tlb fs-boot.elf peripherals petalinux-image-minimal gpio axi bitstream systemverilog bram dtlb quad spi memory map device drivers physical address board support package nexys a7 petalinux vivado image.ub qspi soft core ddr2 mmu device tree xsdb bsp microblaze risc page tables floorplan bootm lut mig jtag utlb yocto uart rootfs virtual address boot.bin itlb pll artix-7 nexys initramfs fsbl

Oct 06 2014

Kernels 201 - Let’s write a Kernel with keyboard and screen support

Arjun Sreedharan

In my previous article Kernels 101 - Let’s write a Kernel, I wrote how we can build a rudimentary x86 kernel that boots up using GRUB, runs in protected mode and prints a string on the screen. Today, we will extend that kernel to include keyboard driver that can read the characters a-z and 0-9...

technology programming keyboard kernel cpu gcc grub assembly x86 asm operating system bootloader nasm interrupt pic i/o ld booting