19th Sep 2020, 12:23 pm | #81 | |
Octode
Join Date: Mar 2019
Location: Barry, Vale of Glamorgan, Wales, UK.
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Re: PIC 14 Karen
Quote:
ZX80 - I have a full kit now but, it looks so lovely and my 3D printer still has a fault to print the enclosure so I want to fix that first. ZX81/80 Grant Searle Board from Phil 1702 EPROM board - also from Phil Martin MK14 V - I keep stealing parts to finish others Lower case board for Dragon 64K upgrade to Dragon to make full use of the Plus board it has Valve and Crystal radio kits and of course after the conversation the other day I just had my 1MHz crystal delivered as the final part for an Acorn System 1 clone... I also have part finished: The Z80 uP dev kit I picked up - I did build the SBC Z80 for it though last weekend : https://www.youtube.com/watch?v=G_iBL94jGdw My uAlpha Micro clone My Teletype conversion from an EX42 as in ETI Oct 83 The SCRUMPI 3 Keyboard to add to my now adapted Veroboard unit that is a hybrid SCRUMPI 2 with EPROM socket. Then of course to do the VDU circuit. Quite apart from the SB+ and SuperBlinkenator projects I am Beta testing for the creators in my Spectrum Next... but, that is not really totally vintage. |
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19th Sep 2020, 12:32 pm | #82 |
Dekatron
Join Date: Aug 2011
Location: Newcastle, Tyne and Wear, UK.
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Re: PIC 14 Karen
Do you have the required PROMs for the System 1?
It sounds as though the very next clone you need to make is at least one of yourself, so he / it can give you a helping hand with all of this. |
19th Sep 2020, 12:43 pm | #83 | |
Octode
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Re: PIC 14 Karen
I have a few blank 571 (forgot to say I have the parts to make an MK14 EPROM programmer but, no PCB) and some Tesla - which I would LIKE to make a programmer for...
but, in this instance I have burnt a 2716 which can be jumper selected as the boot PROM on a System 1 until I get around to the above... Quote:
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19th Sep 2020, 12:51 pm | #84 |
Dekatron
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Location: Newcastle, Tyne and Wear, UK.
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Re: PIC 14 Karen
If you can supply the code and Nat Semi 74S571s or any of the non-Tesla pin-compatible alternatives from AMD, Signetics, etc, I'd be happy to programme those for you, although of course I won't have a machine to test them in as I do when I programme MK14 PROMs.
Sounds as though you have something to get you going for the time being, anyway. |
19th Sep 2020, 1:13 pm | #85 |
Octode
Join Date: Apr 2018
Location: Newbury, Berkshire, UK.
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Re: PIC 14 Karen
Very interesting Tim, nice to see the Z80 build.
I'm building up a backlog too, so I really must get my domestic situation sorted and get that stuff out of storage. I've got: 1) To finish the PIC14, parts are coming in I'm mostly waiting on the capacitors now, have started soldering bits in 2) Want to build my Series VI MK14, got me some buttons for it but the rest is in storage 3) Want to build the ZX80/1 clone from the board Tim gave me 4) I gave into weakness and bought a pair of the Acorn 1 boards that were on Ebay. A lot of the components I have in storage, and I snapped up some D6 buttons that were going for about 20p each so I have 60 of those...all black but there you are. I do have some other colours in storage. 5) I also have in storage 2 commodore pets, a BBC Micro, an atari 400 and a 800XL all in need of restoring to function, so that'll be fun. 6) In the storage space of dreams there's also my paper tape punch, a Olivetti (or is it Olympia?) Nixie desktop calculator that needs bringing back to life if possible. 7) I have a load of Z80 CPU, Z80 PIO, Z80 CTC and Z80SIO chips, 6809's and 6309s, 6116 Rams, 62256 Rams, sound chips, CRTCs, several Gigabytes of EPROM for some reaason and a zillion ideas...... So, just need to get moved, empty storage and I'll never be bored! So the PIC14 is sort of a warm-up for me! Oh yes I need to make that PROM programmer and finish my MK14 uploader too! Last edited by Slothie; 19th Sep 2020 at 1:14 pm. Reason: additional info |
20th Sep 2020, 3:29 pm | #86 |
Octode
Join Date: Apr 2018
Location: Newbury, Berkshire, UK.
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Re: PIC 14 Karen
Well I seem to have successfully programmed the PIC with the code from Karen's website.... And no smoke!
I've paused the assembly because my cutters are just chewing the legs off rather than cutting, and I'm expecting some new ones monday/tuesday. Had a few things arrive yesterday so all I'm awaiting is the cutters and the capacitors! |
20th Sep 2020, 3:51 pm | #87 |
Octode
Join Date: Mar 2011
Location: North Yorkshire, UK.
Posts: 1,115
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Re: PIC 14 Karen
I use toenail clippers, much better than sidecutters (a dedicated pair, obs...)
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20th Sep 2020, 10:06 pm | #88 |
Dekatron
Join Date: Aug 2011
Location: Newcastle, Tyne and Wear, UK.
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Re: PIC 14 Karen
I, strangely enough, usually trim my fingernails with the sidecutters on my bench but that is because I often break one when trying to get something apart, so the fastest 'fix' is just to snip the broken bits off with what I have to hand, and then the others don't match so I have to trim the rest as well.
Well done with the PIC programming project, nice to have another 'way' to do that. Now all we need is the same sort of thing for Tesla MH74S571s (see what I did there...). |
20th Sep 2020, 10:35 pm | #89 | |
Octode
Join Date: Apr 2018
Location: Newbury, Berkshire, UK.
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Re: PIC 14 Karen
Quote:
I do have 20 MH74S571s sitting waiting to be test subjects. Hopefully only a few will perish in the attempt! |
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20th Sep 2020, 11:00 pm | #90 |
Octode
Join Date: Mar 2011
Location: North Yorkshire, UK.
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Re: PIC 14 Karen
Not my neatest work but the nail clippers cut really close:
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23rd Sep 2020, 9:53 am | #91 |
Octode
Join Date: Mar 2011
Location: North Yorkshire, UK.
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Re: PIC 14 Karen
Slothie, a quick question please - until now all the pics I've used default to the internal RC clock, from the 877 datasheet I see it also defaults to RC but but the actual R and C are external - does the 877 program ok without, as it appears your photo above?
Ta v much Phil |
23rd Sep 2020, 10:30 am | #92 | |
Octode
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Location: Newbury, Berkshire, UK.
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Re: PIC 14 Karen
Quote:
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23rd Sep 2020, 11:20 am | #93 |
Octode
Join Date: Mar 2011
Location: North Yorkshire, UK.
Posts: 1,115
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Re: PIC 14 Karen
Excellent thanks
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23rd Sep 2020, 8:32 pm | #94 |
Octode
Join Date: Mar 2019
Location: Barry, Vale of Glamorgan, Wales, UK.
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Re: PIC 14 Karen
I have just programmed mine in my TL866II+ using its software under Wine on Linux if people are looking for ways to do it. I have only ever used it for EPROMS and also recently testing Logic chips in more detail than my mini tester.
Behold it lives thanks to Karen and Phil: |
23rd Sep 2020, 8:38 pm | #95 | |
Octode
Join Date: Apr 2018
Location: Newbury, Berkshire, UK.
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Re: PIC 14 Karen
{Wormhole From the VDU Thread}
Quote:
I've ordered a magnifying desk lamp thingie which should help with my eyesight and working in the evenings. Its now a race between that arriving and me finishing in the 2 hour slots I get between care home regime and failing sunlight. My soldering has improved after its 18 month holiday, the first resistor I put in looks terrible but I'm going to leave it lest I damage the PCB trying to make it look nice! I used my non-plus TL866 on Linux in Wine. When I recently re-installed Linux it stopped working (well the software, the hardware is in storage....) so I probably need to uninstall it from Wine and re-install so it picks up the right DLLs or something. Did you use the patched setupapi.dll from radioman or does it now work natively? |
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23rd Sep 2020, 8:49 pm | #96 | |||
Octode
Join Date: Mar 2019
Location: Barry, Vale of Glamorgan, Wales, UK.
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Re: PIC 14 Karen
Quote:
My eyesight is not brilliant any more but, I have been back to full strength with the desk lamp magnifying thingy I bought last year - best thing I ever did! Quote:
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23rd Sep 2020, 9:22 pm | #97 | |
Octode
Join Date: Apr 2018
Location: Newbury, Berkshire, UK.
Posts: 1,287
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Re: PIC 14 Karen
Quote:
Yes I might fiddle with that again, I was going to see if I could use it as a hex file editor to make up ROM images until I get the Hardware out of storage. |
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24th Sep 2020, 6:18 pm | #98 |
Dekatron
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Location: Newcastle, Tyne and Wear, UK.
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Re: PIC 14 Karen
...Vrrroooooommm...
....That sound we hear as Tim appears out of nowhere and overtakes us on the final straight. Again. For the PIC-VDU All I need to do now is wire up a connector, and yet I somehow suspect that Tim will still have one up and running before I do. |
1st Oct 2020, 3:34 pm | #99 |
Octode
Join Date: Apr 2018
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Re: PIC 14 Karen
My PIC14 is coming on - well until I stuffed up. I was (trying) to solder the display and the pads just wouldnt take solder. In trying to sort this out I cooked the display and lifted some of the pads. Hindsight says I should have cleaned and fluxed the pads but they didn't look obviously oxidised so I charged ahead. Oops.
So I've ordered another from eBay. Luckily a guy (gal?) in the Netherlands is selling 10 TIL displays for £20ish so its not a complere disaster I've just got another delay. Still I can use that time to find some scotchbrite or fine sandpaper. Anyway I've attached a picture of the progress so far. Ignore the blutak supporting the serial module... |
1st Oct 2020, 6:46 pm | #100 |
Octode
Join Date: Mar 2019
Location: Barry, Vale of Glamorgan, Wales, UK.
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Re: PIC 14 Karen
Yes sorry I should have warned you that those needed a good scrub - I think they have some kind of coating on them. Sounds like the same place I got those from...
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