EEPROM - the Holy Grail of Sideways Rom?

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MartinB
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Re: EEPROM - the Holy Grail of Sideways Rom?

Post by MartinB » Tue Jun 26, 2018 5:04 pm

So are you still having problems Duncan?

The 'Bad Syntax' is my message from EELOAD (and EEPxx) and it means just that - wrong (non-hex) number digits, extra digits, extra spaces etc. but there isn't really much to get wrong.

Anyway, if you're still struggling, as much detail as possible please.... :)

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Re: EEPROM - the Holy Grail of Sideways Rom?

Post by DutchAcorn » Tue Jun 26, 2018 5:25 pm

KenLowe wrote:
Sat Dec 09, 2017 1:16 pm
... One thing I have noticed on the BBC+, and never picked up before, is that ROM bank E seems to be unavailable due to the way the OS & Basic are combined into a single ROM :(
Sorry for the late reply, but there is a way to use bank E on a B+, see this post.
Paul

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Elminster
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Re: EEPROM - the Holy Grail of Sideways Rom?

Post by Elminster » Tue Jun 26, 2018 5:59 pm

MartinB wrote:
Tue Jun 26, 2018 5:04 pm
So are you still having problems Duncan?

The 'Bad Syntax' is my message from EELOAD (and EEPxx) and it means just that - wrong (non-hex) number digits, extra digits, extra spaces etc. but there isn't really much to get wrong.

Anyway, if you're still struggling, as much detail as possible please.... :)
Yes. Electron working fine with utils. But Same download of utils in master not working. I suspect the cartridge, as I watch your little video and you don’t do anything different on command line to me. I get all sort of errors and warnings, except when write protected it tells me it is a Rom.

Will double check wiring, then hit with hammer

Edit: utils running off of gosdc, might try running them of gotek to see if any different behaviour.
Last edited by Elminster on Tue Jun 26, 2018 6:02 pm, edited 1 time in total.

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Re: EEPROM - the Holy Grail of Sideways Rom?

Post by MartinB » Tue Jun 26, 2018 6:09 pm

This is only off the top of my head but you saw that I had a Master re-think at some point and revised the hardware details such that the eeprom had to be in a cartridge and not in an internal socket. You possibly know this but just thought I'd mention it - other than that though, it deffo works on a Master with the all-machine V4 utils.

The Master cartridge details are here - again, I think you might know this but I like upping my edit count for those people who voted to see this detail.... :D
Last edited by MartinB on Tue Jun 26, 2018 6:29 pm, edited 4 times in total.

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Elminster
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Re: EEPROM - the Holy Grail of Sideways Rom?

Post by Elminster » Tue Jun 26, 2018 7:08 pm

Yep cartridge, if you go back a screen you can see picture of what we were going to do.

viewtopic.php?f=3&t=7393&start=330#p204456

I sacrificed a cartridge where the second Rom slot was busted, but the one I used was working.

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Re: EEPROM - the Holy Grail of Sideways Rom?

Post by MartinB » Tue Jun 26, 2018 7:22 pm

Ah yes, I remember now :idea:

...and Stewie66 had his working ok so there's nothing I can offer other than to pass you the hammer.

(That edit footer looks really crap on a short post.... :roll: :-x )
Last edited by MartinB on Tue Jun 26, 2018 7:23 pm, edited 2 times in total.

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Re: EEPROM - the Holy Grail of Sideways Rom?

Post by 1024MAK » Tue Jun 26, 2018 8:17 pm

Huh?
Last edited by 1024MAK on Tue Jun 26, 2018 8:19 pm, edited 12 times in total.
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Re: EEPROM - the Holy Grail of Sideways Rom?

Post by daveejhitchins » Tue Jun 26, 2018 8:40 pm

Elminster wrote:
Tue Jun 26, 2018 3:06 pm
Always get either bad syntax or EEPROM is locked. Must be missing a trick here.
Download the New Plus 1 Support ROM and use the commands in there. All the commands are described in the AP6 User Guide.

Dave H :D
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Re: EEPROM - the Holy Grail of Sideways Rom?

Post by MartinB » Tue Jun 26, 2018 8:51 pm

Duncan has the Electron side of things working ok now, the remaining problem is that his modified Master cartridge isn’t behaving (in a Master).
Last edited by MartinB on Tue Jun 26, 2018 8:53 pm, edited 1 time in total.

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Re: EEPROM - the Holy Grail of Sideways Rom?

Post by daveejhitchins » Tue Jun 26, 2018 8:57 pm

Ah! Yes, I've just caught-up with the thread . . .

Dave H :D
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Re: EEPROM - the Holy Grail of Sideways Rom?

Post by Elminster » Tue Jun 26, 2018 11:31 pm

Yes I have either wired it up wrong, or the original half-workingness of the cart (which is why I chose it) is playing havoc. Not much on them to go wrong so hopefully fixable. Might go quiet for a while though, got quite a lot of stuff working this week, running out of my allowed hobby time allowance for the year.

Thanks anyway for just confirming I haven’t missed any steps.

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Re: EEPROM - the Holy Grail of Sideways Rom?

Post by Elminster » Wed Jun 27, 2018 9:41 am

Or possibly chopping D0 track in half with a soldering iron when removing the unrequired (and not working) ROM socket might have something to do with it. There is no direct connection to D0 from the remaining socket, it links to the removed socket, and therefore it is floating now. Should be fixable with a flywire.
Last edited by Elminster on Wed Jun 27, 2018 9:41 am, edited 1 time in total.

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Re: EEPROM - the Holy Grail of Sideways Rom?

Post by Elminster » Fri Jun 29, 2018 8:08 pm

Now this looks better on the Master
EELOAD_Master.jpg
And here is my lovely moded card
IMG_3917.jpg
And here is the slight fix I had to make to it after a little 'nick' with the soldering iron wiped out 3 tracks, which just happened to be D0-D2.
IMG_3918.jpg
The SPROW cart has no protection for the tracks so pretty easy to damage them, that is my excuse and I'm sticking to it.

Have now 'burnt' latest videonula rom into it and seems okay.

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Re: EEPROM - the Holy Grail of Sideways Rom?

Post by MartinB » Fri Jun 29, 2018 8:13 pm

Nice one Duncan.... =D> 8)

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