Which setup to use

[jim stephens]

I've done some research to try to get a working setup, and have mainly found a lot of discussions, and some good responses for similar sounding problems to what I have, but no clear formula to have a working setup.

I bought an assembled and tested unit, and figure it's good to go.

I have a Pi 4 8gb as the processor board.

I'm using Raspberry Pi os 64 bit

Distributor ID: Raspbian
Description:    Raspbian GNU/Linux 11 (bullseye)
Release:        11
Codename:       bullseye
64 bit OS.

Linux raspberrypidp10 6.1.21-v8+ #1642 SMP PREEMPT Mon Apr  3 17:24:16 BST 2023 aarch64 GNU/Linux

I've seen that there are maybe issues with 64 bit.

There's an early post on this group about how to rebuild for 64 bit os, but it's stale, and I stalled at the step about replacing libpcap in the sequence.  Looks like it was great at the time, but isn't working for this image.

An OS, and a specific site to download the pidp11 tar from would be appreciated.  Might want to add it to the manual as well.  I didn't get much hardware insight there at all.

BTW from some probing it's clear the code isn't starting, as well as the display on the panel are all still dark.

I may try to find  32 bit system and try it in the mean time.

Thanks

Jim

[terry-...@glaver.org]

I used software install option #2 from here: https://obsolescence.wixsite.com/obsolescence/pidp-11-building-instructions

All was good, except that the RT-11 image complained about SDL2 when booted. I found a post that recommended making this change:

--- pidp11.sh_orig    2023-11-20 11:43:12.000000000 -0500
+++ pidp11.sh    2024-04-28 19:21:06.333579745 -0400
@@ -2,6 +2,7 @@
 
 # for SDL2 graphics
 export DISPLAY=:0
+export SDL_VIDEO_X11_XRANDR=0
 xhost +
 cd /opt/pidp11/bin
 # Make a temp directory in the /run ram disk (if it's not already created)

(adding the "export SDL_VIDEO_X11_XRANDR=0" line) and that fixed it.

I'm still seeing some odd behavior with the rotary switches and having the front panel go dark, which I'm still investigating.