8-bit acorn hardware • Re: Fault finding index
BBC Model B (was a Model A) Issue 2 - serial and cassette don't work.Checked the serial ULA in another Beeb and it was fine. Checked for +5V and -5V and discovered the -5V line was missing. I did have...
View Article32-bit acorn software: classic games • Re: Archimedes Hypercube
Thank you very much indeed, Ian.Statistics: Posted by aidanthegasman — Fri Jun 28, 2024 2:49 am
View Article8-bit acorn hardware • Re: Black screen, no led lights, but do have the two...
i did ask check ALL the links withhttp://chrisacorns.computinghistory.org ... 5_Sec1.pdfpage 31----page 34oke from the two pictures , are the links S32 and S33 WEST ???the link S32 and S33 are on the...
View Articlecommunications • Re: the Night Owl BBS **Host is UP*
Just spent an hour writing some blog , only to realiseI'd messed up the addressee and no-one would be able to see iteven if I made it public. Such is life. No matter though, a second draftwill likely...
View Article8-bit acorn hardware • Re: Paper tape reader
Looking at that design, a cheap method would be to use a panel lamp, they're like a thin tube with a filament and for IR, it doesn't need to be run hard at all, take a 6V lamp and run it at 5V. I've...
View Article8-bit acorn hardware • Re: Electron Plus 1 ROM emulation and SD interface...
Well it's all wired up and working with PiTubeDirect!IMG_20240628_111129_edit_485629983225889.jpgI had wired the 40 pin tube connector the wrong way, so odd pins 1-39 were swapped with even pins 2-40!...
View Article8-bit acorn emulators • Re: B-Em
I'm wondering if anyone else can reproduce this:If I use one of the January Windows builds from here, enable Music 5000 under Settings, and then start B-Em up at 500% speed usingCode: b-em -sp9I get a...
View Article8-bit acorn hardware • Re: JamSoftElectronULA: A no-frills Electron ULA...
So the display is pushed about halfway across the screen and about 2 lines up.If I remove/replug power 2 or 3 times, then it works and I get the normal Elk boot screen. Wondered if you had any...
View Article8-bit acorn software: classic games • Re: Spooksville - Game breaking bug?
I played this as a kid and found it oddly atmospheric so it stuck with me. I tried it again years ago but couldn't figure much out except how to kill the larger enemies you mentioned. I have no idea...
View Articleacorn & bbc micro user group (abug) events • Re: ABUG Scotland #8 : Thu...
Gallery of rogues (and bits of the wall)Abug1.jpgAbug3.jpgAbug4.jpgAbug5.jpgAbug6.jpgAbug7.jpgAbug2.jpgAbug8.jpgThe captures were done on a real BBC B (not purple) with the WE digitiser, but the...
View Article8-bit acorn hardware • Re: Econet: Not Listening (I broke it again)
I suspect the soldering at the socket, or some of the components close by. Do you have any close up photos of the rear of the PCB around the Econet section?Statistics: Posted by KenLowe — Sun Jun 30,...
View Article8-bit acorn hardware • Re: Meshtastic
Why is there a need for 115k baud? Is that the default speed of the microcontroller serial port? The actual mesh data rate seems to be far, far lower than that...
View Article8-bit acorn hardware • Re: New Raspberry Pi to 1MHz bus interface
So far I've cleaned the 1Mhz pins on the beeb, tried 2, 8 and 16Gb sd cards formatted to FAT and FAT32, the DP11 and hoglet67 releases of the 1Mhz software, 2 different Pis.So typing P.$&FD00...
View Article8-bit acorn software: other • Re: Moving games and other software to rom
My games usually use a 224x256 or 256x224 mode 1 to match the arcade version which is either 16k or 14k but they often have a score panel of a couple of K or pacman loads the whole maze as the game...
View Article8-bit acorn emulators • B-Em Tape Overhaul v3.2
3.2I hoped to publish this days ago, but the release testing process kept throwing up issues which forced me to restart the release process over again. I'm not 100% confident in this release, but I...
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8-bit acorn hardware • Re: JamSoftElectronULA: A no-frills Electron ULA...
As requested I had a look at C9 and tried the following:...Please let me know if you'd like me to do any testing at all, hardware or firmware, I really don't mind and like giving back to the retro...
View Articleoff-topic • Re: LOLPRICE
Simply place a bid here https://www.ebay.co.uk/itm/276511429839 for £2049 or higher and it's yours!Sprow.But surely for such a sought after rarity there will be many other bidders to compete with?...
View Article8-bit acorn hardware • Re: Usb keyboard for a beeb
Just sat in the garden enjoying a beer in this lovely warm weather, and got to thinking....Would it be possible to use an Arduino or a pico to interface between a USB keyboard and the Beeb &...
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32-bit acorn hardware • Puzzling over RTC year logic with PCF8583? RISC OS...
TLDR, is there any known issues with RISC OS machines and the year maintained by the clock (assuming good battery) if the machine has been off for more than 5 years? Reason for the ask is as follows....
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8-bit acorn hardware • Re: Reading/Writing from the RTC in the Electron Plus...
Additional Validation logic I updated the ROM (ssd in GitHub repository above) with logic that will avoid the user overwriting (with *I2CTXB or *I2CTXD) free storage used to manage the break toggle...
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