Search found 6122 matches

by danielj
Sat Jul 14, 2018 7:05 am
Forum: hardware
Topic: Cheap web-modem for the beeb/master (and arc if ya like!)
Replies: 106
Views: 3434

Re: Cheap web-modem for the beeb/master (and arc if ya like!)

Glad it's working! Only "enhancement" I'm intending to add is the dacom compatibility mode and eeprom saving of various settings. If anyone wants anything else I would encourage them to contribute it :D
by danielj
Fri Jul 13, 2018 11:10 am
Forum: hardware
Topic: Cheap web-modem for the beeb/master (and arc if ya like!)
Replies: 106
Views: 3434

Re: Cheap web-modem for the beeb/master (and arc if ya like!)

Duncan, I'm assuming it's a character in your password that's different on the beeb... No idea what though. Once the WiFi is set up the esp12 remembers it.
d.
by danielj
Fri Jul 13, 2018 11:08 am
Forum: hardware
Topic: Cheap web-modem for the beeb/master (and arc if ya like!)
Replies: 106
Views: 3434

Re: Cheap web-modem for the beeb/master (and arc if ya like!)

Use commstar version 1.4. Once connected change from terminal to viewdata mode and ensure you press I and change the speeds back to 2400 before pressing C to enter chat mode again (ie connect to the modem).

Commstar 2 won't work.
by danielj
Fri Jul 13, 2018 10:12 am
Forum: hardware
Topic: FreeFi-232 v2
Replies: 71
Views: 1570

Re: FreeFi-232 v2

Fork the repository, write the relevant code, upload it to your repository, and make a pull request? :) At which point I can pull the code in and merge it with the master source? Re. "other NC in cable" - this looks like a modem, it's up to the end user to decide how to connect it to their computer....
by danielj
Thu Jul 12, 2018 8:51 pm
Forum: hardware
Topic: Cheap web-modem for the beeb/master (and arc if ya like!)
Replies: 106
Views: 3434

Re: Cheap web-modem for the beeb/master (and arc if ya like!)

Use esptool.py to completely erase the flash, then start again:
https://nodemcu.readthedocs.io/en/latest/en/flash/


d.
by danielj
Thu Jul 12, 2018 8:19 pm
Forum: hardware
Topic: Cheap web-modem for the beeb/master (and arc if ya like!)
Replies: 106
Views: 3434

Re: Cheap web-modem for the beeb/master (and arc if ya like!)

It's the ESP8266 on the NodeMCU that's not 5V tolerant. Max3232 can work over a voltage range, and converts ~ between 3 and 5V to 12V and back again, MAX232 is just designed to work at 5V. http://www.ti.com/lit/ds/symlink/max232.pdf -> it's why I used the 3237 (same as the 3232 but with more transce...
by danielj
Thu Jul 12, 2018 6:37 pm
Forum: hardware
Topic: Cheap web-modem for the beeb/master (and arc if ya like!)
Replies: 106
Views: 3434

Re: Cheap web-modem for the beeb/master (and arc if ya like!)

Right - so - the firmware in the main repository is designed to work with the new hardware - if you check the releases page, there's the last version that I had working nicely with the lolin setup. On a more positive note though, if this one works with the lolin board, that's all to the good. Have a...
by danielj
Thu Jul 12, 2018 11:14 am
Forum: hardware
Topic: FreeFi-232 v2
Replies: 71
Views: 1570

Re: FreeFi-232 v2

RTS/CTS will need uncrossing too. Wiring is as per:
ModemStraightDB25.gif
Edit: You can turn off hardware flow, in which case those lines are just ignored, but it does reduce reliability on the beeb end at higher speeds.
by danielj
Thu Jul 12, 2018 9:46 am
Forum: hardware
Topic: FreeFi-232 v2
Replies: 71
Views: 1570

Re: FreeFi-232 v2

"uncrossing" will involve a 9-pin to 9-pin, or 25-pin to 9 pin.. Ergo I'd have thought you may as well just build a straight through RS232-25pin-male to BBC 5pin and only have one cable in the chain. I'm only using a 25pin to 9pin adapter as I'd already built a straight through beeb->9pin, and I'm a...
by danielj
Thu Jul 12, 2018 7:15 am
Forum: off-topic
Topic: Football
Replies: 9
Views: 249

Re: Football

:D
I'm anything but a football fan, but I've quite enjoyed this little stint :)
by danielj
Thu Jul 12, 2018 5:25 am
Forum: hardware
Topic: FreeFi-232 v2
Replies: 71
Views: 1570

Re: FreeFi-232 v2

Yes, and no crossover needed as the rs232 is wired up as a modem's would be (ie DCE). You need a crossover if you connect two data terminals together (ie computers).

(and yes, all five pins are connected to give hw flow control :) )

d.
by danielj
Wed Jul 11, 2018 8:58 pm
Forum: hardware
Topic: Music 500 mod
Replies: 4
Views: 118

Re: Music 500 mod

That's fine - you're just pulling/biasing/somethingerising a line. I remember doing this and thinking it shouldn't be measuring zero, but it was, and it was and it was fine that it was :)

d.
by danielj
Mon Jul 09, 2018 7:38 am
Forum: off-topic
Topic: I'm the new game reviewer for the Zzap!64 magazine
Replies: 6
Views: 494

Re: I'm the new game reviewer for the Zzap!64 magazine

This thread is from 5 years ago! :D
by danielj
Sun Jul 08, 2018 9:28 pm
Forum: software: other
Topic: Help needed: M128, PiTubeDirect, Datacentre and GEM 2
Replies: 19
Views: 405

Re: Help needed: M128, PiTubeDirect, Datacentre and GEM 2

In theory RAMFS shouldn't bother it as it can't deal with the ADFS/Acorn DOS formats so it shouldn't be involved. That said, I did have some issues at various points with the IDE patched ADFS and the datacentre - unzipping files very often corrupted the hard drive. I never got to the bottom of it :?...
by danielj
Sun Jul 08, 2018 11:28 am
Forum: acorn atom
Topic: new to atom: ram rom mmc joystick power
Replies: 23
Views: 443

Re: new to atom: ram rom mmc joystick

SirMorris (Charlie) for the AtomMMC. Prime for the RAM/ROM :)

d.
by danielj
Sun Jul 08, 2018 11:25 am
Forum: hardware
Topic: FreeFi-232 v2
Replies: 71
Views: 1570

Re: FreeFi-232 v2

It was 1200/75 BITD. 1200 down, 75 up...
by danielj
Sun Jul 08, 2018 11:01 am
Forum: hardware
Topic: FreeFi-232 v2
Replies: 71
Views: 1570

Re: FreeFi-232 v2

by danielj
Sun Jul 08, 2018 10:59 am
Forum: hardware
Topic: Missing old/new Electron Expansions
Replies: 76
Views: 1221

Re: Missing old/new Electron Expansions

It was designed to fit into this slogger rx case which basically stuck the guts of everything, elk included, into a box and used the elk's keyboard on a flying lead. I don't imagine many were sold. It's a very large board and not very stable as it's uncased. Anecdotal reports suggest the connectors ...
by danielj
Sun Jul 08, 2018 10:28 am
Forum: hardware
Topic: Missing old/new Electron Expansions
Replies: 76
Views: 1221

Re: Missing old/new Electron Expansions

You're fine :D

I suspect the bus will die with that much attached to it.
by danielj
Sun Jul 08, 2018 9:57 am
Forum: hardware
Topic: Missing old/new Electron Expansions
Replies: 76
Views: 1221

Re: Missing old/new Electron Expansions

Cartridges, not ROMs. I believe slogger allows extra cartridges. Looking at the one on Stuart’s webpage. It does, but it's a horrible kludge of a device. However, the content of any ROM cartridge can be stuck on a ROM chip? Obviously not hardware cartridges, but I can't imagine anyone trying to run...
by danielj
Sun Jul 08, 2018 9:37 am
Forum: hardware
Topic: Missing old/new Electron Expansions
Replies: 76
Views: 1221

Re: Missing old/new Electron Expansions

They're not the most reliable things - best solution is an AP6 in a plus 1, with that you can basically "fill" every single available ROM slot.
by danielj
Sat Jul 07, 2018 2:51 pm
Forum: hardware
Topic: RGB to HDMI using a Pi Zero and a small CPLD
Replies: 248
Views: 8225

Re: RGB to HDMI using a Pi Zero and a small CPLD

=D> Great work Dave - I'm happy to build a couple. Anything but beebscsis :D

d.
by danielj
Sat Jul 07, 2018 10:13 am
Forum: hardware
Topic: FreeFi-232 v2
Replies: 71
Views: 1570

Re: FreeFi-232 v2

What is the speed like? Is it like waiting an hour for page to download? I have the original closed source WiFi board but not had chance to test it yet. I'm running at 2400bps, 9 bits per character (8N1) ~ 1000 characters per page = 9000bits, 9000/2400 = 3.75 seconds per page. In practice it feels ...
by danielj
Sat Jul 07, 2018 9:52 am
Forum: hardware
Topic: FreeFi-232 v2
Replies: 71
Views: 1570

Re: FreeFi-232 v2

Viewdata's viewdata - using commstar, return is #, * is * and numbers are numbers :D Added bonus is that the hardware you're using to view is authentic. Re. beebscsis - too late I'm afraid! :D Go to jlcpcb.com, take the gerber files from the beebscsi repository, drop them onto the order form and you...
by danielj
Sat Jul 07, 2018 8:35 am
Forum: hardware
Topic: FreeFi-232 v2
Replies: 71
Views: 1570

Re: FreeFi-232 v2

Just for posterity, bodging required:
DSC_3795.JPG
But we are working, complete with jumper selectable hardware flow control, thanks to hoglet :)
DSC_3798.JPG
by danielj
Sat Jul 07, 2018 5:34 am
Forum: hardware
Topic: Broken New AP5 Fixed & Electron Mouse testing
Replies: 48
Views: 698

Re: Broken New AP5 Fixed & Electron Mouse testing

Something I've wondered with all of this... Does using a cmos processor in the mrb cause a difference in behaviour? I suspect it might...
by danielj
Fri Jul 06, 2018 9:49 pm
Forum: hardware
Topic: FreeFi-232 v2
Replies: 71
Views: 1570

Re: FreeFi-232 v2

Basically, I'll have some new ones in a couple of weeks, and there'll definitely be spares of those (I ended up with a stack of these as 10 is about the minimum, and it's no extra expense to turn them into mini panels with 2-each). If you're not feeling fettly then it's probably worth waiting for so...
by danielj
Fri Jul 06, 2018 9:42 pm
Forum: hardware
Topic: FreeFi-232 v2
Replies: 71
Views: 1570

Re: FreeFi-232 v2

Alternatively for about £7 you can get 20 that are more likely to work :D
by danielj
Fri Jul 06, 2018 9:18 pm
Forum: hardware
Topic: FreeFi-232 v2
Replies: 71
Views: 1570

Re: FreeFi-232 v2

I'm not too worried about shifting them, but they're there if anyone wants one. I've updated the firmware to issue RING and DCD signals, and it turns on DSR by default at the moment. Meanwhile the repository's been updated with the firmware, fixed schematics/PCB layouts and gerbers :)
by danielj
Fri Jul 06, 2018 8:03 pm
Forum: hardware
Topic: FreeFi-232 v2
Replies: 71
Views: 1570

Re: FreeFi-232 v2

Or not. Got to the bottom of it now though. Right - I have a few version 1 PCBs, they will need a bit of fettling to work (a couple of tracks need cutting, a resistor needs adding, another resistor isn't needed, some chunkier wire is needed to beef up the power, and a couple of GPIOs need re-routing...