Search found 502 matches

by simoni
Sun Feb 09, 2020 10:34 am
Forum: hardware
Topic: SmallyMouse2 - new firmware release
Replies: 5
Views: 252

Re: SmallyMouse2 - new firmware release

Well, it's open-source so clearly you are welcome (and encouraged) to hack and experiment (and I'm interested in the result too). Soldering TQFP64 is actually easier than it looks though; just tack it down with a couple of blobs of bluetack, solder two pins to hold it in place - run solder along all...
by simoni
Sun Feb 09, 2020 5:30 am
Forum: hardware
Topic: SmallyMouse2 - new firmware release
Replies: 5
Views: 252

Re: SmallyMouse2 - new firmware release

The issue is that you need support for USB in 'host' mode - which (afaik) only the AT90USB1287 provides. On the bright-side, because it's an open project, there are lots of SmallyMouse2 boards for sale on ebay as well as other sites on the web (if you want a preassembled and/or cased one).
by simoni
Sat Feb 08, 2020 4:52 pm
Forum: hardware
Topic: SmallyMouse2 - new firmware release
Replies: 5
Views: 252

SmallyMouse2 - new firmware release

There is a new firmware release for SmallyMouse2, release V1.2: https://github.com/simoninns/SmallyMouse2/releases/tag/v1.2 This solves some small issues with the emulation (especially when making very small direction change motions with faster machines such as the Archimedes). You can view the rele...
by simoni
Sat Feb 08, 2020 8:51 am
Forum: hardware
Topic: BeebSCSI 7_7
Replies: 180
Views: 8760

Re: BeebSCSI 7_7

There is a new V2.6 release of the BeebSCSI firmware available from the project GitHub: https://github.com/simoninns/BeebSCSI/releases/tag/V2.6 The fixes include corrections around the opening and closing of LUNs (including new debug output to make the operation easier to understand and test), corre...
by simoni
Tue Jan 14, 2020 8:47 am
Forum: hardware
Topic: BeebSCSI 7_7
Replies: 180
Views: 8760

Re: BeebSCSI 7_7

It might be a regression from the last fix of BeebSCSI then - it was a while ago, but I think the push request changed things in the FATFS library. It might be that the library was upgraded a bit, but the symbol wasn't updated... I need to take a look at the code and work out what's what. The idea o...
by simoni
Tue Jan 14, 2020 5:00 am
Forum: hardware
Topic: BeebSCSI 7_7
Replies: 180
Views: 8760

Re: BeebSCSI 7_7

Looks good! Can you attach your test code so I can recreate your test conditions? I'll take a look at the change and check for regression. If there are no side-effects I'll push a new software version. As for exFAT support... BeebSCSI supports it. However, the bootloader (used to upgrade BeebSCSI) i...
by simoni
Sun Jan 12, 2020 5:09 am
Forum: hardware
Topic: BeebSCSI 7_7
Replies: 180
Views: 8760

Re: BeebSCSI 7_7

If the application (in this case a file server) is repeatedly opening and closing LUNs; then there is going to be some overhead as BeebSCSI opens and closes the files in the exFAT partition of the SDcard. Unlike CF card solutions and SCSI2SD, BeebSCSI implements supports full exFAT file system on th...
by simoni
Thu Dec 26, 2019 6:11 pm
Forum: hardware
Topic: Podule bracket and cover plate - 3D printable
Replies: 4
Views: 432

Re: Podule bracket and cover plate - 3D printable

Whoops :) Fixed it now, thanks!
by simoni
Thu Dec 26, 2019 7:23 am
Forum: hardware
Topic: Info please! Acorn's in-house large-memory 6502 co-pro
Replies: 99
Views: 5365

Re: Info please! Acorn's in-house large-memory 6502 co-pro

This was posted over on the Facebook group. I wanted to copy here in case it's useful information (sorry if this is already here somewhere): This unit - we called them TurboTube boards - is a very rare item. Not the usual 6502 co processor board but a wholly different beast. It has 256k if ram and t...
by simoni
Fri Dec 20, 2019 4:36 pm
Forum: hardware
Topic: Podule bracket and cover plate - 3D printable
Replies: 4
Views: 432

Podule bracket and cover plate - 3D printable

Solving another of life's small issues... Open-source openSCAD podule brackets. A half-width cover and the annoying 'joining' bracket you can never find :) Designed according to Acorn's mech. specs for podules. All on github along with .STL files for direct printing: https://github.com/simoninns/Aco...
by simoni
Sun Dec 15, 2019 7:56 am
Forum: hardware
Topic: Morley 16-bit Cached SCSI Podule
Replies: 7
Views: 460

Re: Morley 16-bit Cached SCSI Podule

Just to report back... a couple of replacement 74HC245s and a new EPROM... and it's back in business. The card is now fully functional again :)
by simoni
Sat Dec 14, 2019 10:02 pm
Forum: hardware
Topic: Morley 16-bit Cached SCSI Podule
Replies: 7
Views: 460

Re: Morley 16-bit Cached SCSI Podule

Awesome - thanks very much for the help!
by simoni
Sat Dec 14, 2019 5:49 am
Forum: hardware
Topic: Morley 16-bit Cached SCSI Podule
Replies: 7
Views: 460

Re: Morley 16-bit Cached SCSI Podule

Any luck with those EPROM images @Boydie?
by simoni
Thu Dec 12, 2019 8:02 am
Forum: hardware
Topic: Morley 16-bit Cached SCSI Podule
Replies: 7
Views: 460

Re: Morley 16-bit Cached SCSI Podule

Got a couple - 1.10 and 1.19.
Will upload soon as I get chance (may not be today).
That would be amazing :D I really would like to get it up and running.
by simoni
Wed Dec 11, 2019 11:59 am
Forum: hardware
Topic: Morley 16-bit Cached SCSI Podule
Replies: 7
Views: 460

Morley 16-bit Cached SCSI Podule

I am in the process of repairing a Morley SCSI card, the same one as the following link: http://chrisacorns.computinghistory.org.uk/32bit_UpgradesH2Z/Morley_16bitCachedSCSI.html After some testing, I've discovered that the EPROM is completely blank... Does anyone have an image of the EPROM for this ...
by simoni
Sat Nov 30, 2019 10:15 pm
Forum: hardware
Topic: A310 and AKA31 SCSI Podule
Replies: 4
Views: 257

Re: A310 and AKA31 SCSI Podule

Yes I think so too, I ordered a little kit off ebay with a MEMC1a 10MHz a PAL and a resistor. I think it should be enough for the upgrade :)
by simoni
Sat Nov 30, 2019 7:17 pm
Forum: hardware
Topic: A310 and AKA31 SCSI Podule
Replies: 4
Views: 257

Re: A310 and AKA31 SCSI Podule

I don't think that's it as the 'modification' was free according the AKA31 UG. I will put an MEMC1a in there and see anyway :)

Thanks for the suggestion!
by simoni
Sat Nov 30, 2019 12:23 pm
Forum: hardware
Topic: A310 and AKA31 SCSI Podule
Replies: 4
Views: 257

A310 and AKA31 SCSI Podule

Hi I'm trying to use an AKA31 SCSI card in my A310 - *PODULES shows "Not callable from IRQ routine" (running Arthur 1.20 btw). The AKA31 user guide says that, in order for the board to work in the A310, I need to return it to an Acorn dealer for a "free motherboard modification". Anyone know what th...
by simoni
Fri Aug 16, 2019 11:55 am
Forum: hardware
Topic: BeebSCSI 7_7
Replies: 180
Views: 8760

Re: BeebSCSI 7_7

Hoglet's board is a 7_5 PCB - the 7_7s have a more compact Molex microSD socket that's easier to solder (7_7 is the current PCB release version).
by simoni
Fri Aug 16, 2019 11:12 am
Forum: hardware
Topic: BeebSCSI 7_7
Replies: 180
Views: 8760

Re: BeebSCSI 7_7

If they are soldered correctly, you would need a silly amount of force to break the solder; try pulling a SMT cap off a board without heating it and you'll find out just how strong solder is. Basically, if you don't heat both the PCB pad and the pin of the component you will end up flowing solder on...
by simoni
Fri Aug 16, 2019 4:01 am
Forum: hardware
Topic: BeebSCSI 7_7
Replies: 180
Views: 8760

Re: BeebSCSI 7_7

Great. Also you should upgrade the firmware; 2.5 is the current version (and contains some nice performance improvements for big files).
by simoni
Thu Aug 15, 2019 2:41 pm
Forum: hardware
Topic: BeebSCSI 7_7
Replies: 180
Views: 8760

Re: BeebSCSI 7_7

Didn't miss anything; I was just explaining that the test was simple to do (and that; if you have issues - reading the trace will tell you what they are; saving a whole bunch of speculation and time). BeebMaster - There are two common construction faults - one is the soldering around the SD card (wh...
by simoni
Thu Aug 15, 2019 2:14 pm
Forum: hardware
Topic: BeebSCSI 7_7
Replies: 180
Views: 8760

Re: BeebSCSI 7_7

As I already mentioned; you can simply CTRL+break the Beeb with the trace on. The trace will state if the card is detected. If it's not; there's your hardware fault. You don't even need a multimeter to know (although it's a pretty easy test as you have a schematic for the board and it shows that the...
by simoni
Thu Aug 15, 2019 11:42 am
Forum: hardware
Topic: BeebSCSI 7_7
Replies: 180
Views: 8760

Re: BeebSCSI 7_7

It's almost certainly hardware related; only the snippet of the log file misses the important bit (which is from when the SD card is detected). I'm almost certain that the card detect switch isn't soldered properly; however, if you could post the log including the bit when the BeebSCSI starts (or ju...
by simoni
Thu Aug 15, 2019 10:58 am
Forum: hardware
Topic: BeebSCSI 7_7
Replies: 180
Views: 8760

Re: BeebSCSI 7_7

What error does the Beeb give when you try to access the LUN?

Edit: If you could also link to the BeebSCSI trace, that would be great.
by simoni
Thu Aug 15, 2019 10:37 am
Forum: hardware
Topic: BeebSCSI 7_7
Replies: 180
Views: 8760

Re: BeebSCSI 7_7

Doesn't make much sense... if you have a BeebSCSI and an SD card; you just copy the quick-start LUN to the SD card (as per the doc) and boot the BBC. Once you have loaded SuperForm you can even use it to format the current LUN; or you can load it; *SCSIJUKE, change LUN sets completely; then OLD, RUN...
by simoni
Thu Aug 15, 2019 10:19 am
Forum: hardware
Topic: BeebSCSI 7_7
Replies: 180
Views: 8760

Re: BeebSCSI 7_7

Just download the quick start LUN image from the following link: https://www.domesday86.com/?page_id=400 You can either a) use the quick start LUN image, mount it and use the superform image to format other LUNs, or b) copy it to a floppy from there (or Gotek) or c) use ADFS explorer to move superfo...
by simoni
Sat Aug 03, 2019 1:53 pm
Forum: hardware
Topic: BeebSCSI 7_7
Replies: 180
Views: 8760

Re: BeebSCSI 7_7

I usually boot dos, load gem and draw a picture of Ian.
The Ian-test is a solid one, I use it for testing SmallyMouse2 boards too :)
ian.jpg
by simoni
Sat Aug 03, 2019 1:32 pm
Forum: hardware
Topic: BeebSCSI 7_7
Replies: 180
Views: 8760

Re: BeebSCSI 7_7

My usual soak test is to run the speedtest BASIC program available from the Domesday86 site. I run it reading and writing for a couple of minutes; then I remove the write command and run it again just reading the same file over and over again for 30 minutes or so. If nothing odd happens, the board i...
by simoni
Sat Aug 03, 2019 11:48 am
Forum: hardware
Topic: BeebSCSI 7_7
Replies: 180
Views: 8760

Re: BeebSCSI 7_7

The reports in the latter parts of this thread are primarily to do with bug and issues around the RaspPi implementation of the firmware - the hardware version 7_5 and 7_7 board's firmware has been widely tested (and any small issues ironed out). It would have been good if dp11 could have confirmed w...