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MANDEL was included in ARM BASIC 1.00 (assembled 14th April 1986) It was not included in the next version I can find: ARM BASIC 1.02 (25th September 1987). Just out of interest, I powered up my Arthur 0.3 A310 today and had a look for the MANDEL keyword in it's ARM BASIC v1.00, but it's not present...

Thanks to Retroclinic, yesterday I received this rather unusual beast: So hopefully I can finally fix this.

This was the last IDE board I've got, hope everyone out there with one of them managed to get it working :?: Great to see you've got it into your expanded Adelaide A3010, what a machine that must be! Interesting to see also because you have a very low lying Adelaide board, mine is on much higher le...

Have you checked that the 128mb cards are real and not those fake capacity ones that lurk on places like Ebay and Alibaba? Great thought, and useful tools thanks, but i don't think anyone is trying to fake a 128mb ( not gb) card. If anything this would be a larger capacity card cut down to 128mb as...

hoglet wrote:There is a debug build of MMFS that (U/MMFSDBG.rom) that logs the SPI commands sent to the card, and the responses.

Thanks Dave - just tried this, and upon issuing *CARD, I get about 40 rows of "FF400000000095:FF" before it returns the "Card?" error...

Guess that means no SPI?

DutchAcorn wrote:Did you use the SD card formatter to format them? Modern versions of windows are known to have issues with formatting SD cards?

Yep, that's what I used...

Not sure how to get more information off the card though, is there a tool to extract information?

Thanks duikkie, very useful summary.

duikkie wrote:which cards , brand and other marks ?

I only have what is in the photo, no brand or other marks.

So this would be SD only then, no SPI, that's a shame.

Hopefully not the start of a new trend in SD only cards...

Is it normal to find that some SD cards don't work with any of the MMFS/SmartSPI/etc. ROMs using a 99p user port interface on the beeb? I recently got a couple of brand new, but very low capacity, SD cards (128mb) bundled with parts for another project. I was going to stick them in the back of my sp...

My issue 3 beeb has a SN76489AN, however my issue 2 beeb has a SN76489N. I'm very surprised and confused by this info as everything I've read suggests that the SN76489 max clock is 500Khz, (whereas SN76489A is 4Mhz max) so unless the issue 2 MB has a /8 compensation for the 4Mhz sysem clock, it see...

Great discussion, I hadn't appreciated the different possibilities to output sampled sound from the beeb! The SN76489AN used in most (all?) BBCs does indeed reset the bit sequence when writing to the noise control register. I know the NCR 8496 does not (this is required by the LucasArts Tandy music ...

Have you checked to see if there's a ram expansion in the machine? If there is and it's bust then it might be causing your error. Another possible cause is if there used to be a RAM expansion fitted, but then removed by a previous owner without resetting the RAM expansion links on the main PCB (so ...

Ahh, brilliant, I'm not going mad then

Thanks both for those links!

I'm setting up a mmc interface for a friend's beeb and thought I'd download a fresh copy of the "beeb.mmb" file pre-filled with games discs, but I'm really struggling to find where I can download this from... I've tried searching the forum and google without success, the download link which I'm sure...

Interesting. Try doing the same but add a new partition (option 1) before initialising. I've not used the ICS formatter for a long time, but some formatters create a default partition automatically and some don't. The warning about no partition in the table, suggests this formatter might not create ...

I've been using eBay for many years, but don't remember anywhere where a buyer can "mark item as received". Yikes, you're right! I better change what I state in my payment and collection terms... Looking back, I'd received feedback at the same time as the last two collections, but it sounds like it...

The reason is fraud. There is a scam. Pay by PayPal and collect. Then claim it never arrived. Buyer wins a refund no questions asked because they seller didn't post it to the paypal address. I've always asked buyers who pay with PayPal and then request to collect in person, to be prepared to log in...

I don't have it in front of me now but it definitely showed that it had found an SD card adapter of some description. !HDFormat also displayed the correct size for the entire SD card, which changed if I ran it with a different card. I tried a 1gb and a 256mb and all info displayed matched the card ...

Has anyone else had this happen? - What could be the reason? - Does it suggest that the drive isn't formatted or initialised quite right? My A310 is currently packed away, so I can't compare directly, but the greyed out icon suggests the drive is either unformatted or not being detected correctly. ...

danielj wrote:I think I've potentially got a cheaper serial solution than the wifi232... Watch this space!

Oh, intriguing! I'm watching

did you manage to get full networking through the adaptor? I'd be interested in hearing more about how you managed this. :) Well, it was a while ago now, and I should revisit this again, but at the time I just used Hearsay2, or was it Connector?, to telnet into the Acorn Arcade BBS - I recall being...

Interesting thread, it would be great to find a good simple solution to this. I got myself one of these some time ago, and I’ve used it successfully with my A3010 to get online and transfer files. Using one of these WiFi232 serial adapters instead of an ethernet podule frees up the A3010 mini-podule...

Great detective work!

Brilliant work and a great write up!

I've replaced the CMOS chip but, unfortunately, it's made no difference :( I've also dug out my non-working A5000 Alpha so if the kids don't object too much, I'll try to get the scope out tomorrow and have a big repair session. Shame to hear the CMOS chip didn't solve it. Did you get any further wi...

Exactly!

I started looking as my Acorn data recorder is not behaving at the moment, so I don't want to be left unable to use my cassette collection... but seems like there are at least a coupe of modern recorders available off the shelf with the right connections

Humm... https://www.ebay.co.uk/itm/Cassette-DATA-player-suitable-for-BBC-Master-Electron-with-PSU-and-data-cable/172002990346 From the description: "They don't make cassette recorders any more but we found this player that will load data tapes into a BBC Microcomputer..." So why's this cassette reco...

Just read through this from the start. Great work getting this far Ken. I hadn't realised the Integra-B connection from the title or I'd have certainly read through earlier. I've got a fully working Integra-B, so if you can't read one or both of your PALs, let me know and I'll take apart my beeb and...

Hello I converted the lemmings demo ADF from lemming demo ADF to an HFE with the default settings. First, and I'm sure you've worked out if you've played the game, but this isn't 'Lemmings', it's a nice freeware clone of Lemmings, if a little less polished than the original, called Lemings (one 'm'...

Very interesting, thanks Mark. In that case, maybe channels 2 and 3 are the 'strange' ones, as they both sit perfectly at &FFF0 with no change. Either way, I'll take a good look at the pcb later - it was in terrible condition when I recieved it early last year, and has already had a good scrub, so t...

Quick update. I'm still getting some strange behaviour from the ADC on my issue 3 beeb... The original (suspect) ADC chip still appears to crash the computer occasionally even without the joysticks plugged in! But if I swap it for the known-good ADC from my issue 7 beeb, then the computer seems stab...