Baildon Electronics IDE Interfaces - Replication

Arc/RPCs, peripherals, RISCOS operating system & ARM kit eg GP2x, BeagleBoard
RobC
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Re: Baildon Electronics IDE Interfaces - Replication

Postby RobC » Fri May 05, 2017 12:40 pm

I should have an original board somewhere and am happy to help.

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daveejhitchins
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Re: Baildon Electronics IDE Interfaces - Replication

Postby daveejhitchins » Sat May 06, 2017 7:34 am

It may not be too bad . . . . . . . . . . .
IdeAIn V6C 09-09-16 - Schematic.PDF
Here's the Schematic - Not yet complete, but nothing missing of consequence!
(661.13 KiB) Downloaded 16 times

And here's the PLD equations I was given as the latest (they're not as the pins don't match!) which could give us a good starting point!

Code: Select all

Name       IDE1V6_B;
Partno     00000;
Date       31-07-97;
Revision   02;
Designer   D Prosser;
Company    BAILDON ELECTRONICS;
Assembly   IDE Podule PAL;
Location   IC 6;
/******************************************************************/
/* NOTE: `E' PREFIX = EPLD `P' PREFIX = PAL `V' PREFIX = EEPROM   */
/*  Allowable Target Device Types:G16V8                           */
/******************************************************************/
/** Inputs **/
Pin 1   = !EAS       ;       /* EASY Space Select     */
Pin 2   = !PS        ;       /* IOC mode PODULE SELECT */
Pin 3   = DMACH      ;       /* DMA Channel Select    */
Pin 4   = EASENABLE  ;       /* Enable EASY  Space   */
Pin 5   = LA13       ;       /* Latched ADDRESS 13    */
Pin 6   = !DACK      ;       /* DMA acknowledge       */
Pin 7   = RNW        ;       /* READ/not Write       */
Pin 8   = PIRQEN     ;       /* IRQ drive             */
Pin 9   = DRQ2       ;       /* DMA Request Drive 2   */
Pin 11  = DRQ1       ;       /* DMA Request Drive 1   */

/** Outputs **/
Pin 12  = !DACK1     ;       /* DMA Ack Drive 1    */
Pin 13  = !DACK2     ;       /* DMA Ack Drive 2    */
Pin 14  = !MS        ;       /* Master Select      */
Pin 15  = DRQ        ;       /* DMA Req to Host    */
Pin 16  = PIRQ       ;       /* O/C IRQ TO Host    */
Pin 17  = !T1        ;       /* Data Buffers Enable */
Pin 18  = !LATCLK    ;       /* Adrs Latch Enable  */
Pin 19  = !EPCS      ;       /* EPROM CHIP SELECT  */

/** LOGIC EQUATIONS **/

PIRQ      = 'B' 0;
PIRQ.OE   = PIRQEN;

EPCS      =   !LA13 & PS
            # !LA13 & EAS & EASENABLE;

T1        =   PS
            # EAS & EASENABLE
            # DACK;

MS        =   LA13 & PS
            # LA13 & EAS & EASENABLE;

LATCLK    =   !LA13 &  PS & !RNW
            # !LA13 & EAS & EASENABLE & !RNW;

DACK1     =   DACK & !DMACH;

DACK2     =   DACK &  DMACH;

DRQ       =   DRQ1
            # DRQ2;


Code: Select all

IName       IDE1V6_A;
Partno     00000;
Date       22-01-97;
Revision   01;
Designer   D Prosser;
Company    BAILDON ELECTRONICS;
Assembly   IDE Podule PAL;
Location   IC 1;
/******************************************************************/
/* NOTE: `E' PREFIX = EPLD `P' PREFIX = PAL `V' PREFIX = EEPROM   */
/*  Allowable Target Device Types:G16V8                           */
/******************************************************************/
/** Inputs **/
Pin 1   = !PS        ;       /* IOC mode PODULE SELECT */
Pin 2   = RNW        ;       /* READ/not Write       */
Pin 3   = IRQ        ;       /* HD Interrupt Request */
Pin 4   = !EAS       ;       /* EASY Space Select     */
Pin 5   = LA13       ;       /* Latched ADDRESS 13    */
Pin 6   = LA3        ;       /* Latched ADDRESS 3     */
Pin 7   = LA9        ;       /* Latched ADDRESS 9     */
Pin 8   = LA8        ;       /* Latched ADDRESS 8     */
Pin 9   = LA7        ;       /* Latched ADDRESS 7     */
Pin 11  = LA4        ;       /* Latched ADDRESS 4     */
Pin 13  = !DACK      ;       /* DMA acknowledge       */

/** Outputs **/
Pin 12  = !IDESEL1   ;       /* Drive Select Line 1  */
Pin 14  = nPIRQ      ;       /* IRQ o/c to host    */
Pin 15  = IRQLAT     ;       /* IRQ Enable Latch   */
Pin 16  = D0         ;       /* DATA LINE 0        */
Pin 17  = LATCLK     ;       /* Adrs Latch Enable  */
Pin 18  = !EPCS      ;       /* EPROM CHIP SELECT  */
Pin 19  = !IDESEL2   ;       /* Drive Select Line 2 */

/** LOGIC EQUATIONS **/

EPCS      = !LA13 & PS
          # !LA13 & EAS;

D0         =   LA13 & LA9 & !LA8 & LA7 & LA4  & IRQ
             # LA13 & LA9 & !LA8 & LA7 & !LA4 & !LA3;
/*
             # LA13 & LA9 & !LA8 & LA7 & !LA4 & !LA3 & LA2; */

D0.OE      = LA13 & LA9 & !LA8 & LA7 & PS & RNW
           # LA13 & LA9 & !LA8 & LA7 & EAS & RNW;

IDESEL1    = LA13 & !LA9 &        PS
           # LA13 & !LA9 &        EAS;

IDESEL2    = LA13 &  LA9 &  LA8 & PS
           # LA13 &  LA9 &  LA8 & EAS;

nPIRQ     = 'B' 0;
nPIRQ.OE  = IRQ & IRQLAT;

IRQLAT    =   LA13 & LA9 & !LA8 & !LA7 & PS & !RNW
            # LA13 & LA9 & !LA8 & !LA7 & EPS & !RNW
            # IRQLAT & !LA13
            # IRQLAT & !LA9
            # IRQLAT &  LA8
            # IRQLAT &  LA7
            # IRQLAT & !PS  & !EAS;

T1        =   PS
            # EAS
            # DACK;

LATCLK    =   !LA13 &   PS & !RNW
            # !LA13 &  EAS & !RNW;


I suppose the first thing to do is to match the pins to the schematic and then check against the actual device by exercising the relevant pins. Not having driven any of the ports before, on the Elk or Beeb, then if anyone has some time to put together some code to do this (?) it would be greatly appreciated :D To make that a little easier e.g. number of port pins available - The New AP5 is in the final stages of testing (2 x User Port) and we have the UPURS, also with 2 x User Port.

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

numbersix
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Re: Baildon Electronics IDE Interfaces - Replication

Postby numbersix » Sat May 27, 2017 9:51 am

I realise I'm somewhat late to this party, but I've got three different Baildon/ICS IDE interfaces around here, two internal A3000 ones (one is IDE only and the other is a hard card) and one podule based one which is in my RiscPC. Will there be anything useful that can be gleaned from them? I can post photos later on and I could dump the contents of the ROMs on the A3000 ones without too much trouble.

RobC
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Re: Baildon Electronics IDE Interfaces - Replication

Postby RobC » Sat May 27, 2017 10:59 am

I've also managed to find my Balidon IDE interface - it's the Risc PC/podule type rather than the mini-podule one.

I can buzz out the connections against the schematic over the next week and look at scoping the pins.

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daveejhitchins
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Re: Baildon Electronics IDE Interfaces - Replication

Postby daveejhitchins » Sat May 27, 2017 6:18 pm

Yes please & yes please. Any assistance from any source, will be appreciated.

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

numbersix
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Re: Baildon Electronics IDE Interfaces - Replication

Postby numbersix » Mon May 29, 2017 7:18 am

Here are the photos of the cards that I have.

Here's the one from my own A3000 from back in the day, this is still all working:

IMG_5954.JPG


IMG_5953.JPG



This is the one from the A3000 which I have just started to work on, it was working yesterday, but experiments with CF cards had to stop yesterday after the A3000's CMOS chip decided to let go:

IMG_5955.JPG


IMG_5956.JPG



Here's the half length podule that is in my RiscPC:

IMG_5948.JPG


IMG_5950.JPG


If I can do anything with them to help, please let me know. I can read the EPROMs off, but am not sure I can manage the GALs.

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daveejhitchins
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Re: Baildon Electronics IDE Interfaces - Replication

Postby daveejhitchins » Mon May 29, 2017 7:30 am

Thanks for the photos, they're always useful. I don't need anything right-this-minute, however, it's good to know you have them - in case I do need information at some point. Ripping the ROMs would be appreciated, though!

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

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daveejhitchins
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Re: Baildon Electronics IDE Interfaces - Replication

Postby daveejhitchins » Mon May 29, 2017 7:48 am

While at the recent Cambridge bash, I had a go at reading the PLDs for the Issue 6C PCB. I soon realised that I'd need to spend a long time to get the whole picture - and I'd need a better set-up than loose wires into a bread-board!! So, I decided to put it off for a rainy summers day (after all we get plenty of those :? ).

I'll be setting up and using the User Ports on the New Electron AP5. I'm already thinking about how I'll structure the BASIC program to drive it all. Fortunately I can put together the bones of the program on my Mac, using BeebEm3 (I don't seem to be able to get BeebEm4 running :( - But that's for another thread). As I've not (ever) used the User Ports before, it'll be another learning curve - looking forward to it :D

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

numbersix
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Re: Baildon Electronics IDE Interfaces - Replication

Postby numbersix » Mon May 29, 2017 8:14 am

No problem, I will get onto reading the ROMs out this week!

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1024MAK
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Re: Baildon Electronics IDE Interfaces - Replication

Postby 1024MAK » Mon May 29, 2017 8:35 am

daveejhitchins wrote:While at the recent Cambridge bash, I had a go at reading the PLDs for the Issue 6C PCB. I soon realised that I'd need to spend a long time to get the whole picture - and I'd need a better set-up than loose wires into a bread-board!! So, I decided to put it off for a rainy summers day (after all we get plenty of those :? ).

I'll be setting up and using the User Ports on the New Electron AP5. I'm already thinking about how I'll structure the BASIC program to drive it all. Fortunately I can put together the bones of the program on my Mac, using BeebEm3 (I don't seem to be able to get BeebEm4 running :( - But that's for another thread). As I've not (ever) used the User Ports before, it'll be another learning curve - looking forward to it :D

Assuming a simple configuration of one port for output (8bits) and one port (8 bits) for input. Set up the 6522 port used for output. Although the default state is for both ports to be in input mode after the chip is reset, it's good practice to program the other port for input anyway.

Connect the outputs from the 6522 to the PAL/GAL inputs and the output(s) to the 6522 inputs. Make sure that you note down how you connected it!

To test just for a combinational logic function (e.g. as in a PAL/GAL used only for address decoding), the program simply outputs a count on the output port (FOR - NEXT loop for example) and after writing the loop counter to the output port, you read the input port. If the input matched the wanted value (e.g. one line low as it's a chip select line) print the output value to the screen as well as the returned input value (or send to a file on disk).

Then it's a case of drawing a up a simplified truth table from the results :wink:

I actually did this a few years ago. If I can find my notes, I'll post up the program I used.

Mark
For a "Complete BBC Games Archive" visit www.bbcmicro.co.uk NOW!
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daveejhitchins
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Re: Baildon Electronics IDE Interfaces - Replication

Postby daveejhitchins » Mon May 29, 2017 8:47 am

Thanks, Mark . . .

Not quite as easy a 8 x 8, as I've 10 inputs and 7 outputs. I had planned to drive all the inputs and split the outputs over two runs.

Thanks for the offer of your program - will save a few years hours :shock:

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

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Re: Baildon Electronics IDE Interfaces - Replication

Postby Zarchos » Mon May 29, 2017 12:29 pm

Could there be a benefit for you to use the MIST board with the Archimedes core to develop your podule ?
I have just watched again TerribleFire's upload on YT where he says MIST is a perfect tool to do exactly that.

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Re: Baildon Electronics IDE Interfaces - Replication

Postby daveejhitchins » Mon May 29, 2017 5:54 pm

Zarchos wrote:Could there be a benefit for you to use the MIST board with the Archimedes core to develop your podule ?
Probably a little over the top for this job, as they're relatively simple PLDs. Thanks for the suggestion, though.

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

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Re: Baildon Electronics IDE Interfaces - Replication

Postby daveejhitchins » Mon May 29, 2017 6:28 pm

Now here IS some news . . . . (not that I know what to do with it yet!)

Well now, after being told, by a certain gentleman :wink: , that Baildon Electronics doesn't exist - What have we here . . .

Ah! Yes, it's the schematics of what became known as the Blitz IDE Interface, direct from the designer, Dave Prosser, one time partner, Baildon Electronics :D << I need a bigger, smugger, smile!

This is all I have, at the moment! I would still like to get my hands on an actual device :?

Dave H :D

ARCIN_32a_Schematic.zip
(45.84 KiB) Downloaded 25 times
Parts: UM6502CE, GAL22V10D, GAL16V8D, AS6C62256A, TC514400AZ, WD1772, R6522, TMS27C512, AT28C256
Products: ARA II, ABR, ATI, AP6, MGC, AP5 . . .
For a price list, contact me at: Retro Hardware AT dave ej hitchins DOT plus DOT com

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danielj
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Re: Baildon Electronics IDE Interfaces - Replication

Postby danielj » Mon May 29, 2017 6:29 pm

:D hahaha - awesome. Do you have the ROM?

d.

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daveejhitchins
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Re: Baildon Electronics IDE Interfaces - Replication

Postby daveejhitchins » Mon May 29, 2017 6:31 pm

That's all I have, at the moment . . . . Watch this space . . . But don't hold your breath!

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

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danielj
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Re: Baildon Electronics IDE Interfaces - Replication

Postby danielj » Mon May 29, 2017 6:32 pm

And the contents of the CPLD I guess would also be useful :D

(breath not being held!)

d.

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Re: Baildon Electronics IDE Interfaces - Replication

Postby Zarchos » Mon May 29, 2017 7:25 pm

For sure I own at least 1 Blitz IDE podule.
I can send it to you probably at the beginning of next week.

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Re: Baildon Electronics IDE Interfaces - Replication

Postby daveejhitchins » Mon May 29, 2017 7:52 pm

Zarchos wrote:For sure I own at least 1 Blitz IDE podule.
I can send it to you probably at the beginning of next week.

Image << Big smile - and an even bigger thank you.

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

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Re: Baildon Electronics IDE Interfaces - Replication

Postby aotta » Wed Jun 14, 2017 7:05 am

Any news? Did you got the Blitz and ripped the firmware from am29f040b?
We are keeping finger crossed.. ;)

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Re: Baildon Electronics IDE Interfaces - Replication

Postby Zarchos » Wed Jun 14, 2017 7:32 am

aotta wrote:Any news? Did you got the Blitz and ripped the firmware from am29f040b?
We are keeping finger crossed.. ;)


Busy with boring bits in dull normal life, but today should be the day I find my Blitz, hopefully.

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Re: Baildon Electronics IDE Interfaces - Replication

Postby aotta » Wed Jun 14, 2017 9:30 am

Zarchos wrote:
aotta wrote:Any news? Did you got the Blitz and ripped the firmware from am29f040b?
We are keeping finger crossed.. ;)


Busy with boring bits in dull normal life, but today should be the day I find my Blitz, hopefully.


Good news! and it's always funny scouting into old boxes... :)
Btw... isn't more easy trying to reproduce a more simple card, like the A3000 Ide showed by numbersix few posts ago? only few, common and simple ICs, no 144 pins IC to connect.. a quite standard rom to rip and replace with an eproom...
Or i missed some interesting point in the discussion? :-?

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Re: Baildon Electronics IDE Interfaces - Replication

Postby Zarchos » Wed Jun 14, 2017 9:59 am

Yes you missed the main point ;-)

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Re: Baildon Electronics IDE Interfaces - Replication

Postby daveejhitchins » Wed Jun 14, 2017 11:51 am

Tha A3000 IDE Interface is in the pipeline . . . Just a matter of time :wink: I'll also do the issue 5 board, just for completeness.

I didn't get the PLDs done, due to time and resources! I need to automate the process . . .

Mark - Did you manage to find your 6522 program?

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

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Re: Baildon Electronics IDE Interfaces - Replication

Postby aotta » Fri Jul 07, 2017 5:17 am

Waiting Dave's project running, i added an oled display to my A3000's HxC! It's not like an hard disk, but it looks nice... :D
Attachments
BBC3000.jpg

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Re: Baildon Electronics IDE Interfaces - Replication

Postby Paul » Fri Sep 01, 2017 6:45 am

Ive just acquired two more arcins.. one flash and one eeprom i think. Ive got the flash update and formatter sw too.

Let me know if I can help in anyway. Ive got a refurb job on and cant wait to get my hands on some of these when they're ready ;)

Great work so far! Whats the next stage?

Cheers, Paul..

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Re: Baildon Electronics IDE Interfaces - Replication

Postby daveejhitchins » Fri Sep 01, 2017 7:44 am

It's getting nearer the top of the pile :D

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

aotta
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Re: Baildon Electronics IDE Interfaces - Replication

Postby aotta » Fri Sep 01, 2017 10:19 am

daveejhitchins wrote:It's getting nearer the top of the pile :D

Dave H :D


i wonder myself how long is that pile... :? :lol:
..please keep us informed, and good work!

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1024MAK
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Re: Baildon Electronics IDE Interfaces - Replication

Postby 1024MAK » Fri Sep 01, 2017 11:38 am

daveejhitchins wrote:Mark - Did you manage to find your 6522 program?

Dave H :D

Ahem, once I find the appropriate disk... while looking for something else, I did (re-)find my stash of new 5 1/4in disks...

Mark
For a "Complete BBC Games Archive" visit www.bbcmicro.co.uk NOW!
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Re: Baildon Electronics IDE Interfaces - Replication

Postby daveejhitchins » Fri Sep 01, 2017 6:49 pm

aotta wrote:i wonder myself how long is that pile...
Just don't know what you're trying to imply here [-(

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


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