New Electron Interface

for bbc micro/electron hardware, peripherals & programming issues (NOT emulators!)
Post Reply
guy314
Posts: 5
Joined: Wed Mar 08, 2017 12:09 am
Contact:

New Electron Interface

Post by guy314 » Sun Jun 25, 2017 3:52 pm

Ok, ages ago I mentioned about creating new Electron hardware... so progress hasn't exactly been rapid given I have to give preference to work clients are actually paying me for :lol:

But anyway, it does now physically exist and I'm working on the many challenges it presents!
elkmega1.png
Spec:
USB host (MSD + HID at the moment)
SD card
WiFi (yes, the trusty ESP8266)

I'll try and keep you updated on progress...

User avatar
Elminster
Posts: 3137
Joined: Wed Jun 20, 2012 8:09 am
Location: Essex, UK
Contact:

Re: New Electron Interface

Post by Elminster » Sun Jun 25, 2017 5:01 pm

Looks promising. Let me know if/when ready to add to the hardware addon list

User avatar
fandenivoldsk
Posts: 7
Joined: Sun Jun 25, 2017 1:36 pm
Contact:

Re: New Electron Interface

Post by fandenivoldsk » Sun Jun 25, 2017 5:30 pm

Looks awesome!

User avatar
jbnbeeb
Posts: 425
Joined: Sat Apr 03, 2010 8:16 pm
Contact:

Re: New Electron Interface

Post by jbnbeeb » Sun Jun 25, 2017 5:34 pm

Hi there,
it's nice to see evermore projects for the Electron.

What does this interface do..?
I'm going to ..
ABUG Cambridge Sept 7th-9th Sept 2018
Image

guy314
Posts: 5
Joined: Wed Mar 08, 2017 12:09 am
Contact:

Re: New Electron Interface

Post by guy314 » Tue Jun 27, 2017 2:23 am

It will enable the Electron to access USB devices - currently mass storage & HID (mouse at the moment).
Also has an SD card interface.
ESP8266 WiFi module

There's a 32 bit micro on the board running at 48 MIPS which is hooked onto the 6502 bus via a CPLD. In reality it may have been possible to handle the 6502 bus signals in code on the micro, given how slow the Electron is running. But I like programmable logic :D
There is also flash for the 6502 code. All of the firmware hopefully will be upgradeable on-the-fly so should be possible to add in new USB device support.

Anyway, hopefully it will give the Elk a new lease of life :D

User avatar
daveejhitchins
Posts: 4460
Joined: Wed Jun 13, 2012 5:23 pm
Location: Newton Aycliffe, County Durham
Contact:

Re: New Electron Interface

Post by daveejhitchins » Tue Jun 27, 2017 6:56 am

Excellent project =D>

Just a thought, looking at the edge connector on your PCB, it looks as though it could be a little short in the width! I use 56.5mm, if that's any help?

Dave H :D
Parts: UM6502CE, GAL22V10D, GAL16V8D, AS6C62256A, TC514400AZ, WD1772, R6522, TMS27C512, AT28C256
Products: ARA II, ARA III, ABR, ATI, AP6, MGC, AP5 . . .
For a price list, contact me at: Retro Hardware AT dave ej hitchins DOT plus DOT com

guy314
Posts: 5
Joined: Wed Mar 08, 2017 12:09 am
Contact:

Re: New Electron Interface

Post by guy314 » Tue Jun 27, 2017 3:24 pm

It's 55.5mm at the moment, so an extra mm might be in order :D

User avatar
daveejhitchins
Posts: 4460
Joined: Wed Jun 13, 2012 5:23 pm
Location: Newton Aycliffe, County Durham
Contact:

Re: New Electron Interface

Post by daveejhitchins » Tue Jun 27, 2017 4:07 pm

guy314 wrote:It's 55.5mm at the moment, so an extra mm might be in order :D
Good plan . . . Otherwise there's a chance you'll connect to the wrong pins!

Dave H :D
Parts: UM6502CE, GAL22V10D, GAL16V8D, AS6C62256A, TC514400AZ, WD1772, R6522, TMS27C512, AT28C256
Products: ARA II, ARA III, ABR, ATI, AP6, MGC, AP5 . . .
For a price list, contact me at: Retro Hardware AT dave ej hitchins DOT plus DOT com

User avatar
MartinB
Posts: 4980
Joined: Mon Mar 31, 2008 9:04 pm
Location: Obscurity
Contact:

Re: New Electron Interface

Post by MartinB » Tue Jun 27, 2017 5:05 pm

Yes, this happens.... #-o
EUP misaligned.JPG
So you have to do this.... :roll:
EUP tongue fix.JPG
...to get this... :lol:
EUP aligned.JPG

User avatar
daveejhitchins
Posts: 4460
Joined: Wed Jun 13, 2012 5:23 pm
Location: Newton Aycliffe, County Durham
Contact:

Re: New Electron Interface

Post by daveejhitchins » Tue Jun 27, 2017 6:07 pm

MartinB wrote:Yes, this happens.... #-o
I wasn't going point that out :lol:

Dave H :D
Parts: UM6502CE, GAL22V10D, GAL16V8D, AS6C62256A, TC514400AZ, WD1772, R6522, TMS27C512, AT28C256
Products: ARA II, ARA III, ABR, ATI, AP6, MGC, AP5 . . .
For a price list, contact me at: Retro Hardware AT dave ej hitchins DOT plus DOT com

User avatar
RetroMike
Posts: 17
Joined: Wed Jul 23, 2014 10:56 pm
Contact:

Re: New Electron Interface

Post by RetroMike » Tue Jun 27, 2017 8:39 pm

Sign me up! When I can get mine up and running of course :oops: An ideas of a likely timescale and price point? :)
Not quite all there...

Post Reply