Revision as of 11:47, 24 May 2012

A0B36APO (Architektury pocitacu -- Computer architectures) is a course taught by Department of Computer Science and Engineering and Department of Control Engineering.

Students have to work with specialized hardware. This page describes how to use the virtual implementation of the specialized hardware -- this can help students to work at home without the access to the real hardware.

Qemu

Qemu is a processor emulator which enables to run separate Operating System on Virtual Hardware.

APOHW

APOHW comprises PCIe I/O card and Simple terminal (keyboard + text LCD).

Using APOHW

How to obtain the source code:

 git clone git://rtime.felk.cvut.cz/lisovros/qemu_apohw.git -b apohw

How to compile it:

 ./configure --enable-system --target-list=i386-softmmu --enable-sdl --enable-kvm

 make

To compile Qemu on bare Ubuntu 12.04, you will need to install zlib1g-dev, libglib2.0-dev, libsdl1.2-dev

How to run it:

 ./i386-softmmu/qemu-system-i386 -device apohw \
    -hda ../../debian_lenny_i386_standard.qcow2 \
    --boot c \
    -enable-kvm

You need to have some image file with GNU/Linux installed on it. KVM command is optional.

In another terminal then run:

 telnet localhost 55555

... and perceive the miracle

What is not implemented

Proper timing features of the hardware
I/O card is PCI, not PCIe -- however memory access is the same.
HD44780 does not support 4bit access
HD44780 does not support display shifting
HD44780 does not support editable CGRAM
Buzzer

Bugs

Bug reports please send to lisovy@gmail.com

Useful links

HD44780 DDRAM explained

PCI drivers on Linux

@@ Line 1: / Line 1: @@
+[[File:apo_bazmek.jpg|thumb|right|Simple terminal used by students]]
 [https://edux.feld.cvut.cz/courses/A0B36APO/start A0B36APO] (Architektury pocitacu -- Computer architectures) is a course taught by [http://cs.felk.cvut.cz/webis/courses.html Department of Computer Science and Engineering] and [http://dce.fel.cvut.cz/ Department of Control Engineering].
-[[File:apo_bazmek.jpg|400px]]
 Students [https://edux.feld.cvut.cz/courses/A0B36APO/tutorials/10/start have to work with specialized hardware]. This page describes how to use the virtual implementation of the specialized hardware -- this can help students to work at home without the access to the real hardware.