4.4 BSD-Lite

A project log for MiniBSD laptop computer

RetroBSD is UNIX running on PIC32 and this is a board I designed for it, evolving into tiny computer

jaromirsukubajaromir.sukuba 12/29/2015 at 00:232 Comments

Well, it's a long time since last update. Today, I sat down to my new board around PIC32MZ2048ECG064

and configured/complied/loaded LiteBSD system to run on it from internal RC oscillator

Copyright (c) 1982, 1986, 1989, 1991, 1993
	The Regents of the University of California.  All rights reserved.

4.4BSD-Lite build 0 compiled 2015-12-28
cpu: PIC32MZ2048ECG064 rev A5, 200 MHz
oscillator: system PLL div 1:2 mult x50
cache: 16/4 kbytes
real mem = 512 kbytes
avail mem = 352 kbytes
using 18 buffers containing 73728 bytes of memory
spi1 at pins sdi=RF1/sdo=RF0/sck=RD1
spi2 at pins sdi=RG7/sdo=RG8/sck=RG6
spi3 at pins sdi=RB9/sdo=RB3/sck=RB14
spi4 at pins sdi=RD11/sdo=RD0/sck=RD10
uart1 at pins rx=RD2/tx=RD3, interrupts 112/113/114
uart2 at pins rx=RB7/tx=RB6, interrupts 145/146/147, console
sd0 at port spi2, pin cs=RG9
sd0: type I, size 498176 kbytes, speed 12 Mbit/sec
sd0a: partition type b7, sector 2, size 204800 kbytes
sd0b: partition type b8, sector 409602, size 32768 kbytes
sd0c: partition type b7, sector 475138, size 102400 kbytes
bpf: lo0 attached
WARNING: preposterous clock chip time -- CHECK AND RESET THE DATE!

starting file system checks.
/dev/rsd0a: 2128 files, 13973 blocks used, 36242 free
starting network
clearing /tmp
standard daemons: update.
Mon Dec 28 15:44:43 PST 2015

4.4BSD-Lite ( (console)

login: root
Last login: Mon Dec 28 15:44:00 on console
Copyright (c) 1980, 1983, 1986, 1988, 1990, 1991, 1993, 1994
        The Regents of the University of California.   All rights reserved.

4.4BSD-Lite UNIX #1: Fri Apr 01 00:00:00 PDT 1994

Welcome to 4.4BSD-Lite!

erase ^H, kill ^U, intr ^C status ^T
Don't login as root, use the su command.

This is more powerful system than previous one with PIC32MX - only 128kB RAM / 80MHz compared to 512kB RAM and 200MHz of PIC32MZ, not mentioning new OS, so I'm definitely going to employ this MCU on MiniBSD computer.


pdrift86 wrote 01/05/2016 at 07:59 point

Please keep us posted. I really like your first version and especially the keyboard. Wish I had one of those for my project. I'm currently trying to use one from a HP Jornada.

  Are you sure? yes | no

jaromir.sukuba wrote 01/05/2016 at 08:17 point

Thanks. The first keyboard is actually quite crappy, those are just telephone switches, but it has some amount of retro feeling. The HP Jornada keyboard looks much more professional.

  Are you sure? yes | no