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by svrsig
Wed Apr 27, 2016 7:37 am
Forum: RISCOS
Topic: No video output from RISC OS
Replies: 6
Views: 2401

Re: No video output from RISC OS

Try setting an explicit monitor resolution in config.txt - most likely the GPU can't work out what you have connected to the HDMI socket and is outputting composite video.
by svrsig
Wed Feb 17, 2016 6:24 pm
Forum: RISCOS
Topic: RISCOS & RPiZero screen issues...
Replies: 3
Views: 1959

Re: RISCOS & RPiZero screen issues...

Startup now waits at this point until the Esc key is pressed...
If you have turned on IP, then this is the correct behaviour unless you add a USB/Internet dongle. If you turn off IP then it won't pause.
by svrsig
Wed Jan 06, 2016 9:10 pm
Forum: RISCOS
Topic: PiZero clock speed on RISC OS
Replies: 2
Views: 1722

Re: PiZero clock speed on RISC OS

Many thanks for the help. I have adjusted the config.txt to: # bootcode.bin commit id 4a66b501473024c143c8c34fb670e009b6a8b8ff # fixup.dat commit id 47bd0f0f46bc053d8e21655e3a69c4a73ae19b41 # start.elf commit id 47bd0f0f46bc053d8e21655e3a69c4a73ae19b41 fake_vsync_isr=1 framebuffer_swap=0 gpu_mem=48 ...
by svrsig
Wed Jan 06, 2016 11:21 am
Forum: RISCOS
Topic: PiZero clock speed on RISC OS
Replies: 2
Views: 1722

PiZero clock speed on RISC OS

The cpu speed appears to be stuck at 700MHz on RC14, even with Nov 2015 firmware and a 30-Dec-2015 RISC OS ROM image. What changes do I need to make please to config.txt to force the correct 1000MHz speed for the cpu please? Speed switching (SYS "Portable_Speed") is not implemented in the RISC OS ke...
by svrsig
Wed Feb 25, 2015 8:12 am
Forum: RISCOS
Topic: Risc OS Pi RC14 Now Available
Replies: 6
Views: 2646

Re: Risc OS Pi RC14 Now Available

The new version of Risc OS for the Raspberry Pi is finally available on the download site for Risc OS
And on the Rapsberry Pi Foundation 'downloads' tab as of today. Changes are described here: http://www.svrsig.org/WhatsNew.htm
by svrsig
Tue Feb 24, 2015 11:07 am
Forum: RISCOS
Topic: RISC OS on Raspberry Pi 2?
Replies: 18
Views: 7423

Re: RISC OS on Raspberry Pi 2?

some of the software included in the commercial NutPi bundle refuses to work on the Raspberry Pi 2.
I understand that this is being worked upon...
by svrsig
Mon Feb 23, 2015 10:01 pm
Forum: RISCOS
Topic: RISC OS on Raspberry Pi 2?
Replies: 18
Views: 7423

Re: RISC OS on Raspberry Pi 2?

That's very nice, but how about a version compatible with BerryBoot? Could it be done? What is different in Berryboot when compared to NOOBS (which will feature RISC OS for the model 2 quite soon)? The RISC OS Open download page still features the old RC12a image as per 23rd February 2015. RC14 is ...
by svrsig
Sat Feb 21, 2015 8:28 am
Forum: RISCOS
Topic: RISC OS on Raspberry Pi 2?
Replies: 18
Views: 7423

Re: RISC OS on Raspberry Pi 2?

It's just not been packaged in a single place yet. Once it is NOOBS will, no doubt, follow. The RISC OS Raspberry Pi SD card image has been updated to RC14 see here: https://www.riscosopen.org/news/ which runs on all models (that is models A, A+, B, B+ and the model 2) and is available pre-flashed ...
by svrsig
Sat Feb 14, 2015 2:42 pm
Forum: RISCOS
Topic: RISC OS on Raspberry Pi 2?
Replies: 18
Views: 7423

Re: RISC OS on Raspberry Pi 2?

There's a RISC OS computer show on Saturday 21st February. Hopefully a new release, Pi 2 compatible, will be available then. The previous SD card image (called RC12a) which is a RISC OS only image can be made to work on the model 2 by downloading the latest Pi firmware from github and the latest dai...
by svrsig
Tue Oct 21, 2014 3:47 pm
Forum: RISCOS
Topic: What are people doing with RISC OS on the Pi?
Replies: 22
Views: 9007

Re: What are people doing with RISC OS on the Pi?

You are probably better posting on the ROOL forum as the question is principally about a dead Iyonix. The drive on the Iyonix is PATA, most adaptors are now SATA (and there my knowledge ends).
by svrsig
Thu Aug 21, 2014 3:34 pm
Forum: RISCOS
Topic: hard drive and risc os pi
Replies: 4
Views: 2026

Re: hard drive and risc os pi

Hi Thanks for the reply. How do you access the hard drive with riscos? Is it possible to send a app to the hard disk? If you have a Raspberry Pi with the RISC OS RC12a SD card image on the SD card then you will see that application directories (those that begin with a '!') are included inside the d...
by svrsig
Sat Aug 16, 2014 8:29 am
Forum: Compute Module
Topic: Compute module not talking
Replies: 27
Views: 7207

Re: Compute module not talking

When it does work (and the replacement board works perfectly), the transfer speed to the CM as a mass storage device should be about 7Mbytes/sec. Hence 10 minutes to flash 4Gbytes. Two hours is (IMHO) a hardware fault. With the faulty CM board in its IO module, I found that lsblk on a Pi would consi...
by svrsig
Sat Aug 09, 2014 10:15 am
Forum: General discussion
Topic: Barebone Basic OS needed
Replies: 29
Views: 7584

Re: Barebone Basic OS needed

The RISC OS Pico image is supplied on a 128Mbyte SD card - cost £5 - and boots into BASIC very quickly. Only 7.8Mbytes are used leaving 120Mbytes free.
by svrsig
Tue Aug 05, 2014 8:23 pm
Forum: Compute Module
Topic: Compute Module GPIO pins & functions
Replies: 7
Views: 4050

Re: Compute Module GPIO pins & functions

and there's probably some kind of initialisation sequence which is different between the two
How does one find out what that is please?
by svrsig
Tue Aug 05, 2014 3:48 pm
Forum: Compute Module
Topic: Compute Module GPIO pins & functions
Replies: 7
Views: 4050

Re: Compute Module GPIO pins & functions

I'm sure the differences are minor it is just difficult to see how to change the source code when it should 'just work'. The source has already been updated to allow for the fact that the card detect line has gone (model B+ and CM) which lost hardware detection of card removal (now done in software)...
by svrsig
Tue Aug 05, 2014 11:15 am
Forum: Compute Module
Topic: Compute Module Test Board
Replies: 108
Views: 28966

Re: Compute Module Test Board

Wow! Smallest text 32mm high!!
by svrsig
Tue Aug 05, 2014 11:10 am
Forum: Compute Module
Topic: Compute Module GPIO pins & functions
Replies: 7
Views: 4050

Re: Compute Module GPIO pins & functions

Does that mean that the EMMC lines CLK CMD D0 D1 D2 D3 are GPIO 48 to 53 so that software that controls an SD card on model B+ using GPIO 48 to 53 should just work 'out of the box' on the Compute module? Or is there some subtlety required?
by svrsig
Thu Jul 31, 2014 8:11 am
Forum: Compute Module
Topic: Compute module not talking
Replies: 27
Views: 7207

Re: Compute module not talking

Well, that's obviously up to the RISC OS developers to fix - if they think enough people will want to run RISC OS on the Compute Module for them to spend the effort 'fixing' it It is (at least) possible that RISC OS has some attraction for embedded devices. The changes to the source code to talk to...
by svrsig
Wed Jul 30, 2014 10:59 am
Forum: Compute Module
Topic: Compute module not talking
Replies: 27
Views: 7207

Re: Compute module not talking

Let us know if the replacement works any better The replacement works exactly as per the documentation. Boring. That is (of course) RISC OS cannot see the EMMC memory yet. I have tried commenting out the 'init_emmc_clock=1000000' line in config.txt but still no joy. The Pico image works (can't see ...
by svrsig
Tue Jul 29, 2014 3:22 pm
Forum: Compute Module
Topic: Compute module not talking
Replies: 27
Views: 7207

Re: Compute module not talking

This does appear to be a hardware fault so Farnell are sending a replacement item.

Thanks for all the help in diagnosing this.
by svrsig
Mon Jul 28, 2014 7:12 am
Forum: Compute Module
Topic: Compute module not talking
Replies: 27
Views: 7207

Re: Compute module not talking

Have you got a separate (quality) power supply for each of your Raspberry Pi and Compute Module? Are you using a USB hub or anything? (although in theory that shouldn't make any difference) Tried another power supply, no difference. I have had a small success using a different Windows machine boote...
by svrsig
Sat Jul 26, 2014 6:59 pm
Forum: Compute Module
Topic: CM Flash problems
Replies: 6
Views: 1934

Re: CM Flash problems

sudo apt-get install git
sudo apt-get install build-essential
Is this step needed? It is not in the documentation.
by svrsig
Sat Jul 26, 2014 6:51 pm
Forum: Compute Module
Topic: Compute module not talking
Replies: 27
Views: 7207

Re: Compute module not talking

What output do you get from dmesg? I hope it means more to you than me! [ 0.000000] Booting Linux on physical CPU 0x0 [ 0.000000] Initializing cgroup subsys cpu [ 0.000000] Initializing cgroup subsys cpuacct [ 0.000000] Linux version 3.12.22+ ([email protected]) (gcc version 4.7.2 20120731 (prerelease...
by svrsig
Sat Jul 26, 2014 6:26 pm
Forum: Troubleshooting
Topic: wrtiitin in disk imager 32 error/
Replies: 2
Views: 575

Re: wrtiitin in disk imager 32 error/

When you read an image from the card, it will read the entire card, even if the partitions created were, in fact, originally smaller. So the work around is to truncate the image you read to the actual formatted area before trying to write to another card. If the formatted area is the whole card you ...
by svrsig
Sat Jul 26, 2014 9:28 am
Forum: Compute Module
Topic: Compute module not talking
Replies: 27
Views: 7207

Compute module not talking

I cannot get the Compute module (in its IO board) to listen properly. The documentation is quite poor and gives no hints about troubleshooting. I don't have to reboot the Compute module to get it to appear as a mass storage device do I? [Boot up Raspberry Pi into Linux on a larger (8GB) SD card] $ l...

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