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Hi KenLowe, I would really like to install the RPi under the Beeb rather than on a Cable if I possibly can. I am happy to remove the Composite Video Connector ... and the Ethernet Socket which will, I believe allow it to be fitted as in the picture below: 20200321_212123.jpg This would require the ...

Edit 3: Well, it started to misbehave again. This time the CMOS data wasn't being read. I piggy backed another RTC on top of the original, and it's all working again. I'll do a proper replacement job later. Finally got around to swapping out the RTC IC this evening. However, it appears that not all...

Hoglet has beaten me to it, but here's my quick fire answers: 1) *CONFIGURE INTUBE - Does this only apply to the Master and not necessary for the Beeb? Correct. 2) How do I revert to a "Normal" Beeb without removing the Raspberry Pi? Is it *FX 151,230,14 ? Is there a *NOTUBE equivalent for the Beeb?...

I managed to download v2.1. The link on the Wiki page is pointing to a dead location, so I just went with the file in the Master branch. I'll pull the file from the dev branch instead, and try again. I do believe that IBOS is making changes to the 6845 registers. I'm not entirely sure why. I did sta...

What value did you end up needing to use for H Offset. I'm using the BBC Micro v21-v23 profile, and I set H Offset to 100 (I think it was set at 126 by default). This shouldn't really have been necessary, so it does make me wonder if the IntegraB is somehow having an effect. Is there a schematic so...

I have just tested the two failing RPis by booting them in Raspbian and they seem to work perfectly well. I have a damaged Pi 3 that behaves in exactly the same way: Raspbian will boot fine, but PiTubeDirect no longer boots at all. It got damaged when I plugged it into the level shifter mis-aligned...

That's me updated the CPLD. In the end, I just went with the Xilinx programmer and iMPACT in a Windows 7 virtual environment, and it all worked fine.

I still needed to make an adjustment to the Horizontal Offset, but I had sufficient range to bring in the cropped edge. All good now.

Thanks

Any idea why my BBC Micro with IntegraB might be doing this clipping (in Mode 7 only)? Resolution is set to 1920x1080 50Hz to match TV resolution. That usually indicates a mismatch between the software profile and the CPLD version What software release are you using? What CPLD version is programmed...

I solved simply adjusting x and y offset in geometry setting for mode 7, and saving configuration. But mine wasn't the native resolution, and I have that cropping only with older board and sw, if I remember fine. That didn't seem to work for me. From memory, the default Horizontal Offset was set to...

I am happy to have a go at it but if it would be easier, I could package the two Pis and send them to any one of you by post. I am out in the sticks so fairly easy to drop in the post. I'd be happy to take a look. Dave, I'm thinking it might be appropriate for me to send you one of my tube level sh...

Any idea why my BBC Micro with IntegraB might be doing this clipping (in Mode 7 only)?

Resolution is set to 1920x1080 50Hz to match TV resolution.

Switching back to EggEater, it's also working fine. Thanks for pointing me in the right direction again.

My RPi 1B has the two mounting holes: 20200326_105459.jpg There's not much to go wrong with the header. Definitely no shorts. ***FFS. Note to self: Don't use a jumper to keep header pins apart*** 20200326_105515.jpg With the level shifter disconnected, here's the power up log: ▒▒▒▒▒▒▒▒`▒▒▒▒▒enable_M...

I've just tried this latest release, but it isn't working either. No data on the serial link. I therefore decided to remove the level shifter altogether, and hook the serial comms directly onto the GPIO header. When I do this, I can see valid data being streamed from the RPi. Next step was to use on...

To aid discussion / fault finding, I've attached a couple of photographs showing the setup on my RPi 3B and the equivalent setup on my RPi Model B. The header extension on my RPi Model B is a bit of a bodge. I'm using 2 off 1x4 header strips and 2 off 1x10 header strips as that's all I had available...

So, I managed to hook up a serial interface, and get good data from the RPi 3B, but absolutely nothing from the RPi Model B. Could it be something to do with the fact that on the Model B, pins 3, 5 & 13 have a different assignment compared to the Model 3B? Although, I presume the PI version detectio...

Which version of PiTubeDirect are you using? The as-yet-unreleased Fer-de-Lance is probably a good one - Dave revamped the detection of various Pi models. I think you need to build from source though. See the branch here: https://github.com/hoglet67/PiTubeDirect/tree/fer-de-lance-dev I'm using EggE...

I'm trying to get PiTubeDirect running on an old 26pin Raspberry Pi Model B (I think), but it's not working. Set up is level shifter is connected to beeb via 40 way ribbon. The other end of the level shifter is close coupled to the 26 pins of the RPi pins 27 thru 40 on the level shifter are not conn...

Folks, Firstly, I must point out that I am no expert on the Music 5000 hardware, so I'm not going to be able to offer much in the way of support here. However, I thought I would post up a SCSI disk image that was used to help with testing both the emulated SCSI drive and the Music5000 hardware, and ...

Folks,

I'm putting a pause on selling these, whilst there are movement restrictions in place. I've posted out to everyone who has paid me, so assuming postal service remains active, everyone who has purchased from me should receive their package shortly.

Thank you, and stay safe!

Ken.

Is it just me, or does the little icon on the tab for the web page look like a spider dangling from the top of the screen??? There's a little bit of dark grey behind the * that looks like the legs! It kinda creeps me out

It was brought to my attention yesterday that some people who noted interest for the original passive level shifter might have thought that they were on the wait list for the new level shifter that I am building. To be clear, I have only recorded notes of interest from individuals who have specifica...

Component selection was a bit manual. To start with, component selection for the board design was based on the list of components that JLC had in stock, and even with this list I tried to select their 'basic' components to avoid paying extra to use their 'extended' parts. Once my board design was co...

BigEd wrote: ↑

Sun Mar 22, 2020 8:55 am

BTW, for technical reasons, it's better to

Code: Select all

*CONFIGURE INTUBE

Ah. Okay. I'll update my Installation Notes accordingly.

Yup. All you need to do is copy the contents of the zip file to the root of the SD card. Pop the card into the RPi and switch on. If you're using a beeb, then the startup message should change to Acorn TUBE 6502 64K. It may take a further BREAK to get this message if the beeb boots up before the RPi...

Wheel_nut wrote: ↑

Sat Mar 21, 2020 11:48 pm

Please could you add my request for One Tube "Under" Level Shifter Board to your list.

I can pay by PayPal Friends and Family whenever you are ready.

Robin

I've added you to the list, and sent you a PM.

It may well work, but difficult to tell until you get all the parts and lay it out. Another point worth remembering is that you will likely need to power the RPi from an external source. You probably don't want to power up from the Tube port. Even with the desire to fit the PI under the beeb, I coul...

I'm interested in how you get on with jlc's assembly service I've not tried it yet but might for my next project at least for the bulk of the smd parts. Thought I'd provide some feedback now that I've had a few batches of boards built. Build quality of the first batch was good, but I've been less t...

I think I might have a possible solution without needing to remove the composite video connector from your RPi board. I should be able to get hold of some elevated 2x13 sockets that can be soldered onto the level shifter, and allow the level shifter to sit just proud of the composite video connector...

You do need to make arrangements to connect to the 26 pin header. One approach is to desolder the composite connector, at which point a 40 pin connector will just work. But it's tricky to desolder as it's so chunky. (Another approach (in theory) would be to fit a 26 pin connector to a 40 way cable,...