This project was created on 03/28/2014 and last updated 2 months ago.
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 jarin@plechac:LiteBSD/sys/compile/SDZL.pic32 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 /dev/rsd0a: MARKING FILE SYSTEM CLEAN starting network clearing /tmp standard daemons: update. Mon Dec 28 15:44:43 PST 2015 4.4BSD-Lite (bsd.net) (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.
Well... four months since last update... the time flies. Brian Benchoff asked about the new keyboard layout, so here is my quick and dirty "drawing" in LibreOffice Calc.
When Q key is pressed, there is contact on between pins 1 and 6. After pressing J, between 9 and 14. You got the idea.
It is not very likely to obtain the keyboard outside Czech or Slovakia, though Brian got this keyboard in Apex electronics, LA. However, I managed to get my hands on a few pieces of those keyboards, so I'll be able to source it to interested builders, if any.
Well, there was no progress for a few weeks, but recently I got into it again. I had nice few evenings with FreeCad (I'm total beginner in 3D modelling) and designed first revision of a case. It looks like this
Kind of classical, laptop-like case. Total size is 22x9x2,7cm when closed.
Unfortunately, it is two centimeters bigger in size than printable area of my 3D printer and I can't make it much smaller due to keyboard size. Time to get bigger 3D printer! :-)
I'll publish design files on Monday morning.