IDE Interface

I am currently working to see if I can boot to an IDE storage device (specifically, a CF Card) and get FreeDOS's kernel loaded. I'll use this post to share my progress. Check back for updates.

Current Schematic

A work-in-progress, but here's the latest I have...

Schematic_ISA IDE Controller _directISA v0.03 copy_2023-04-15.pdf

Download PDF • 292KB

Working Code

While the code is far from done, if you are curious on where I am at, you can check out x86/286-related/WorkingCode/ide_start_20230414 at main · rehsd/x86 (github.com).

Resources

• CompactFlash Memory Card Interface to the TMS320VC54x

• CFlash_PM_10.1.doc (farnell.com)

• ATA PIO Mode - OSDev Wiki

• ATA read/write sectors - OSDev Wiki

• ATA PIO Ports, Replace int 13h - Amateur OS Dev (x86 asm) - YouTube

• GitHub - queso-fuego/amateuros: Github mirror of os dev repo

• OSDev.org • View topic - How to w/r harddisk in pmode?

• IDE Hard Disk Interface for 8-bit Controllers

• COMP 630: Lab 1: x86 Assembly and Bootloader (unc.edu)

• S100 Computers - My System IDE Drive Interface Board

• Paul's 8051 Code Library, IDE Hard Drive Interface (pjrc.com)

• IDE Hard Drive Module « RC2014

• Wesley's PIC Pages: IDE Controller (pjrc.com)

• An Introduction To Programming With ATA And ATAPI (tripod.com)

• Ranish Partition Manager, Hard Disk Partitioning, Dual Booting Linux, XOSL Boot Manager (sourceforge.net)