I want to use a GPIO pin as a new chip select for SPI on an Up Squared board. The Up squared uses an Intel Pentium N4200, so it's a x86 machine. I have managed to this on a Raspberry Pi by using Devic...

After using SeaBIOS for a while, I realized that it's too old. I want to use ACPI 2.0+ for finding and using HPET instead of PIT and APIC timer. I have searched on Google and I know that I can add add...

According to OSDev, to locate the Port I/O address of ACPI timer, we first open FADT table and check entries PM Timer Block Length and PM Timer Block Address. In my computer, PM Timer Block Address gi...