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soviet9922
October 25th, 2016, 11:15 AM
Hi! i have taken a look at my Tandy HX and there no 8087 socket but after reading the tech manual of the 8087 and taking a look at the data sheet of both chips all the pins are almost identical it seem you can solder the 8087 on top off the 8088 and should work?.:confused:

comparison
https://s12.postimg.org/m75u9a5o9/8088_8087.png (https://postimg.org/image/m75u9a5o9/)

System configuration
https://s21.postimg.org/qmqsitzur/8087.png (https://postimg.org/image/qmqsitzur/)

8087 data sheet
http://archive.pcjs.org/pubs/pc/datasheets/8087-FPU.pdf


This is useful

https://s15.postimg.org/i8odzfv6v/clip_image032_5_B3_5_D.gif (https://postimg.org/image/i8odzfv6v/)
Fig. 8.15 Interfacing 8087 with 8086 / 8088

8087 can be connected to 8086 / 8088 only in their maximum mode of operation. In the maximum mode, all the control signals are derived using a separate chip called as a bus controller. The 8288 is a bus controller compatible with 8086 / 8088. The BUSY pin of 8087 is connected to the TEST pin of the CPU. The QS0 and QS1 lines may be directly connected to the corresponding pins in the case of 8086 /8088 based systems.

The clock pin of 8087 is connected to clock input of CPU. The interrupt output of 8087 is connected to the CPU through a Programmable Interrupt Controller 8259. The pins AD0 – AD15, BHE / S7, RESET, A19 / S6 – A16 / S3 of 8087 are connected to corresponding pins of the CPU.

krebizfan
October 25th, 2016, 11:47 AM
What are you planning to do with the 8087? Unless you plan on running very large spreadsheets, it won't provide much benefit.

The daughtercards designed to plug both an 8087 and 8088 into the 8088 socket on a PC Junior were very simple. Try searching for TIAC Manufacturing and see if you can find a picture of one to help guide the process. I prefer the side by side daughtercard layout. These chips can get warm and stacking them will definitely inhibit cooling.

It does look like stacking can work but I am probably overlooking a small detail somewhere.

soviet9922
October 25th, 2016, 12:57 PM
I'm just in a neverending quest to max out my tandy HX, as you know the hx don't have any standard expansion. Replaced the cpu by a NEC V20 and a bunch of other stuff. Also add the 8087 seem very simple so why not do it?.
Yes you are right doing a side to side layout will be best because i plan to do some overclocking. What i don't see why this was not done before.

soviet9922
October 25th, 2016, 01:14 PM
This are the only pictures i can find of the original module intel released when the 8087 was new to upgrade previous systems.
https://s17.postimg.org/c8ijgegl7/images.jpg (https://postimg.org/image/c8ijgegl7/)
https://s16.postimg.org/bwx9txzep/C8087_3_module.jpg (https://postimg.org/image/bwx9txzep/)

soviet9922
October 25th, 2016, 01:34 PM
The only pins i found troublesome are this i'm not sure why they have different names.
https://s10.postimg.org/albs3nemt/8088_8087.png (https://postimg.org/image/albs3nemt/)

soviet9922
October 25th, 2016, 02:05 PM
Ok seem that this pins are wired like the 8086 in this presentation shows how is done.
Test goes to Busy no rewiring.
PIN 30 on 8088 to 33 on 8087
https://s10.postimg.org/f6iegze5x/interfacing.png (https://postimg.org/image/f6iegze5x/)

From here
<div style="width:800px"> <strong style="display:block;margin:12px 0 4px"><a href="http://slideplayer.com/slide/2497875/" title="M ATH C O -P ROCESSOR 8087 Gursharan Singh Tatla 20-Nov-10 1" target="_blank">M ATH C O -P ROCESSOR 8087 Gursharan Singh Tatla 20-Nov-10 1</a></strong><iframe src="http://player.slideplayer.com/9/2497875/" width="800" height="649" frameborder="0" marginwidth="0" marginheight="0" scrolling="no" style="border:1px solid #CCC;border-width:1px 1px 0" allowfullscreen></iframe><div style="padding:5px 0 12px"></div></div>

Chuck(G)
October 25th, 2016, 03:23 PM
It's logical if you think about it. For example, BHE (bus high enable) doesn't exist on the 8088 because it has only an 8-bit external bus. MN/MX on the 8087 doesn't exist because the 8087 doesn't care whether or not an 8288 is present or not. RD doesn't matter because the 8087 uses the 8088 to do memory access...and so on.

inotarobot
October 25th, 2016, 10:59 PM
This are the only pictures i can find of the original module intel released when the 8087 was new to upgrade previous systems.
https://s17.postimg.org/c8ijgegl7/images.jpg (https://postimg.org/image/c8ijgegl7/)
https://s16.postimg.org/bwx9txzep/C8087_3_module.jpg (https://postimg.org/image/bwx9txzep/)

I recall that module. Also I think there were some cad drawing of this or a similar module around. Will need to do some thinking on where.

Know I have some ceramic 8087's about, so circuit docs may be with them.

I know the MSDOS option pcb for the Otrona Attache, had an 8086 with empty socket for the 8087. There were detailed circuit drawings available for this board.
So maybe you can google this board and look at how Otrona did it. I did have these cct drawing, and feel I still have them. I know you are asking re 8088 NOT 8086 but any clues to connecting 8087 to an intel processor would be of value to you.

In fact I have a feeling I may still have one stored away in one of the 100+ crates of gear.
However I am unlikely to get to look in those crates for a few months yet.

There is also this book on ebay that may just help. I dont have hard copy to look at, to see what circuit info may be in it.
The Intel Microprocessors 8086/8088, 80186/80188, 80286, 80386, 80486,
Table of contents are

1. Introduction to the Microprocessor and Computer. 2. The Microprocessor and Its Architecture. 3. Addressing Modes. 4. Data Movement Instructions. 5. Arithmetic and Logic Instructions. 6. Program Control Instructions. 7. Programming the Microprocessor. 8. Using Assembly Language with C/C++. 9. 8086/8088 Hardware Specifications. 10. Memory Interface. 11. Basic I/O Interface. 12. Interrupts. 13. Direct Memory Access and DMA-Controlled I/O. 14. The Arithmetic Coprocessor and MMX Technology. 15. Bus Interface. 16. The 80186, 80188, and 80286 Microprocessors. 17. The 80386 and 80468 Microprocessors. 18. The Pentium and Pentium Pro Microprocessors. 19. The Pentium II Microprocessor. Appendix A: The Assembler, Disk Operating System, Basic I/O System, Mouse, and DPMI Memory Manager. Appendix B: Instruction Set Summary. Appendix C: Flag-Bit Changes. Appendix D: Answers to Selected Even-Numbered Questions and Problems. Index.


http://www.ebay.com/itm/The-Intel-Microprocessors-8086-8088-80186-80188-80286-80386-80486-NoDust-/262521995133?hash=item3d1f87bf7d:g:1JQAAOSwGXtXhbt 7


BUT certainly the VERY best book you can get hold of is the INTEL produced "Intel iAPX 86,88 User’s Manual 1981 CPU Processor 8089 8086 8088". Look at this ebay listing.

you have choice of getting a soft copy at bitsavers

http://bitsavers.trailing-edge.com/pdf/intel/_dataBooks/1981_iAPX_86_88_Users_Manual.pdf see P682 on that covers the 8087

or buying a hard copy via ebay.

http://www.ebay.com/itm/Intel-iAPX-86-88-User-s-Manual-1981-CPU-Processor-8089-8086-8088-/361521005921?hash=item542c54c561:g:fdYAAOSwMORW70q 7

Considering the number of pages and wealth of info my preference is look at soft copy and if more that 20% of book is worth printing out then just buy a hard copy as its way easier to thumb through or use as a quick reference.

Sorry that's the best I can do for you right now

pearce_jj
October 26th, 2016, 12:18 AM
I'd be interested in running a clone board if anyone can find the schematic.

inotarobot
October 26th, 2016, 12:28 AM
I'd be interested in running a clone board if anyone can find the schematic.

maybe try and look in the Intel Book on Bitsavers

Intel iAPX 86,88 User’s Manual 1981 CPU Processor 8089 8086 8088

http://bitsavers.trailing-edge.com/pdf/intel/_dataBooks/1981_iAPX_86_88_Users_Manual.pdf

P682 on covers the 8087

inotarobot
October 26th, 2016, 01:31 AM
This are the only pictures i can find of the original module intel released when the 8087 was new to upgrade previous systems.
https://s17.postimg.org/c8ijgegl7/images.jpg (https://postimg.org/image/c8ijgegl7/)
https://s16.postimg.org/bwx9txzep/C8087_3_module.jpg (https://postimg.org/image/bwx9txzep/)

well I looked at the pic and did a google on the intel part number from pcb being PWA 142696.

I got a hit of a Russian, I think, saying he has "INTEL CIRCUIT BOARD PWA 142696 REV
Gold ic 13340048
I HAVE SEVERAL OF THESE BOARDS AND MANY OTHER RELATED IC CHIPS AND BOARDS SO CHECK MY OTHER AUCTIONS"

its in the text at right had lower at the following web address http://buynowus.com/ebay/list/item?obj%5BItemID%5D=391008831085/

Maybe some else on here can better read that listing and ask him if he still has any. IF so I would really be interested in one.

inotarobot
October 26th, 2016, 01:41 AM
Have a look at this link

seems the pic of the intel coprocessor board PWA 142969 leads to this doc. sadly its a text doc and no pics. MAYBE someone has hard copy or a PDF of it

https://archive.org/stream/bitsavers_inteliSBC1ricDataProcessorNov80_2643794/142887-001_iSBC_337_Numeric_Data_Processor_Nov80_djvu.txt


I see the following mentioned in the text

1-2. DESCRIPTION

The iSBC 337 Multimodule NDP board (figure 1-1) is
based on the 8087 Numeric Data Processor. The 8087
provides powerful arithmetic operations on seven
different data types including single and double
precision floating point numbers, words, short and
long int^ers, BCD format, and internal file precision.



The co-processor interface of the 8087 to the 8086/
8088 CPU allows concurrent operation of the two
processors firom a single inclusion of the 8087 on
single board computers via the iSBC 337 Multi-
module NDP board, which is simply a plug on
option. The iSBC 337 MNDP board can also be
utilized by other 8086/8088 based designs, due to the
unique characteristics of the co-processor and Multi-
module interface.



1-3. EQUIPMENT SUPPLIED

The following is suppHed with the iSBC 337 Multi-
module NDP Board.

Schematic Diagram, dwg. no. 142698.

Figure 5-2. iSBC 337™ Board Schematic Diagram (sheet 1 of 1)

here is the pdf link below.. [ Edited to comment ""actually see my next post with further info""]

http://www.nj7p.org/Manuals/PDFs/Intel/142887-001.pdf

inotarobot
October 26th, 2016, 01:51 AM
This are the only pictures i can find of the original module intel released when the 8087 was new to upgrade previous systems.
https://s17.postimg.org/c8ijgegl7/images.jpg (https://postimg.org/image/c8ijgegl7/)
https://s16.postimg.org/bwx9txzep/C8087_3_module.jpg (https://postimg.org/image/bwx9txzep/)

99% certain this is the above pictured module layout, circuit and document in the pdf per link below
http://i.imgur.com/0I36v3T.jpg
http://i.imgur.com/iXDw1q0.jpg

and manual http://www.nj7p.org/Manuals/PDFs/Intel/142887-001.pdf

enjoy and hope someone can easily do a circuit board of same.

Guess there can be two board options depending on which side of processor, one can fit the 8087 onto, depending on the machine one wishes to add the 8987 co-processor to.

3rd option is a stacking arrangement. Seems most pins are 1 to 1 connection except on 8087 pins 31 goes to pin 30 on the processor and 8087 pin 33 goes to a connector P2-2 called RQ/GR1A what ever that is.

anyways I think I have done enough for now, so off to bed for me.

deathshadow
October 26th, 2016, 02:58 AM
I'm trying to remember what magazine it was, my google-fu is failing me... but aren't they so pin-to-pin that you can just piggy back them and only wire one pin different? Could have sworn I had a XT clone that actually came that way with the two literally soldered one atop the other.

-- edit -- actually, @inotarobot's post the circuit diagram shows that whilst there are more than one pin, that's basically all we're talking. That should be all the information you'd need to make a board for it.

Half tempted to try that with my Jr, but my Parkinsons is too far along for me to try that, as my attempt at a 512k conversion to a 128k board is proving.

soviet9922
October 26th, 2016, 10:28 AM
Thank you very much, this information is great and also that shematic confirm that is just a wire job to get this working.
Have to purchase a pair of 8087 on ebay to do some testing now.

yuhong
October 26th, 2016, 10:29 AM
This reminds me of floating point exceptions. At least with the original PC it was a fairly simple connection using NMI. Unfortunately the PCjr uses the same NMI for the keyboard.

soviet9922
October 31st, 2016, 07:47 AM
got a 8087-1 for 7 usd when it arrives gonna build this shematic.

Twospruces
October 21st, 2019, 02:29 PM
...and how did it go?

Twospruces
November 9th, 2019, 12:02 PM
Awakening this old thread yet again.
Seems to me that the trickiest thing about adding an 8087 where there is no socket for it, is that you need to know (1) how to connect the INT output from 8087 ultimately to the NMI input of the 8088. If you don't have a valid schematic (or have a sense of the way it works) then ... thats a problem.
Also, doesn't either BIOS or DOS have to properly handle this NMI input as well?

More research needed.... ;)

krebizfan
November 9th, 2019, 12:33 PM
Awakening this old thread yet again.
Seems to me that the trickiest thing about adding an 8087 where there is no socket for it, is that you need to know (1) how to connect the INT output from 8087 ultimately to the NMI input of the 8088. If you don't have a valid schematic (or have a sense of the way it works) then ... thats a problem.
Also, doesn't either BIOS or DOS have to properly handle this NMI input as well?

More research needed.... ;)

The connection is well documented so adding a board should be relatively easy.

DOS and BIOS don't do anything to handle the NMI. Careless 8087 programming is an excellent method of locking a system.

Chuck(G)
November 9th, 2019, 01:09 PM
Aren't all 8087s cerDIPs? Were there ones in plastic?

Twospruces
November 9th, 2019, 02:07 PM
NMI circuitry is documented for the IBM XT. It may not be the same circuit on other machines. NMI is pinned to vector 2 in the table in the iPAX 86/88 user manual and so I assume that all "pending hardware failures" are treated the same...how would different NMI be differentiated by the processor.

However an OR function would have to be added to allow NMI from the main board cooperate with NMI from 8087.

At least that is my thinking so far.

Chuck(G)
November 9th, 2019, 03:31 PM
The 8087 in the XT is pretty standard for 8088/86 boards. The 8087 NMI is detected in software by checking the 8087 status registers--it's not terribly useful for programs, but it does give a positive indication of the presence or absence of the 8087, regardless of the configuration switches. I seem to recall that Sorcim ran my 8087 math pack on both bog-standard XTs and ATs as well as their Compupro boxes without changes.

Twospruces
November 9th, 2019, 04:23 PM
....well I wonder if xt workalike boards without 8087 sockets may have implementation details that prevents a simple upgrade...

Regardless since NMI seems to be a catch all for "pending doom " then some signal OR ing may be sufficient.

krebizfan
November 9th, 2019, 05:52 PM
The PCJr seems to have needed a BIOS patch for the 8087 to work so some systems may be harder than I expected. I wish I could find illustrations of the various 8088+8087 boards that plugged into the 8088 socket.

Chuck(G)
November 9th, 2019, 06:42 PM
That would figure--the PCJr uses NMI for keyboard, doesn't it?

Twospruces
November 10th, 2019, 12:58 PM
I'm attempting to install an 8087 into a Zenith Z-170.

I have what I think is a valid hardware setup now. It is much like what is illustrated in the iSBC Multimodule Math schematic with these exceptions:
1) NMI into CPU = (NMI signal from Motherboard) OR (INT signal from 8087)
2) BHE/S7 from 8087 is tied to +5V

I *think* my difficulty is now a software problem.

Situation:
* The laptop boots normally now.
* I notice NMI interrupt into CPU is toggling with keystokes. So Z-170 uses NMI to process keys.
* if I start Checkit application, the application hangs on startup.

Krebizfan mentions a patch for PCJr due to keyboard using NMI; any info on that? I've searched the forum and the web to no avail.

Are there any suggestions to debug this further? I'm not sure where the conflict could be occuring, or honestly if it is a hardware issue or a software issue. I'm out of ideas on the hardware side.

thx in advance.

One last thing - BIOS BDA 0040:0010 byte does not seem to indicate a math coprocessor is present. Don't know if Zenith BIOS adheres to standard definitions for that byte, but bit 1 is definitely reset.

krebizfan
November 10th, 2019, 01:09 PM
The PCJr Patch is listed https://gopherproxy.meulie.net/sdf.org/0/computers/pcjr/misc/FILES I don't see a way to download the JR8087 patch and I have no idea if that patch is even close to what the Zenith needs.

gatyra
November 10th, 2019, 01:19 PM
What are you planning to do with the 8087? Unless you plan on running very large spreadsheets, it won't provide much benefit.

The daughtercards designed to plug both an 8087 and 8088 into the 8088 socket on a PC Junior were very simple. Try searching for TIAC Manufacturing and see if you can find a picture of one to help guide the process. I prefer the side by side daughtercard layout. These chips can get warm and stacking them will definitely inhibit cooling.

It does look like stacking can work but I am probably overlooking a small detail somewhere.

8087 can be connected to 8086 / 8088 only in their maximum mode of operation. In the maximum mode, all the control signals are derived using a separate chip called as a bus controller. The 8288 is a bus controller compatible with 8086 / 8088. The BUSY pin of 8087 is connected to the TEST pin of the CPU. The QS0 and QS1 lines may be directly connected to the corresponding pins in the case of 8086 /8088 based systems.

Chuck(G)
November 10th, 2019, 01:59 PM
I doubt that the PCJr patch would work on the Z170. Does the Z170 employ an 8259 PIC? If so, the patch isn't going to work.

Twospruces
November 10th, 2019, 02:05 PM
thanks, found the files. Looks like the patch (merely?) flips bit 1 of BIOS BDA 0040:0010 to say "coprocessor detected".

I had already tried this using debug... no luck.
It is possible that my 8087 is a dud. I bought an 8087-1 from ebay/china. it certainly gets warm like it should.

Chuck(G)
November 10th, 2019, 02:36 PM
If I dig really deep into my old archives, I've probably got an 8087 demonstration program.

Twospruces
November 10th, 2019, 03:34 PM
Thanks. Well it feels like bad hardware a bit. If any code hits the FPU , system hangs. Maybe I have a bad signal somewhere.

ibmapc
November 10th, 2019, 04:00 PM
If I dig really deep into my old archives, I've probably got an 8087 demonstration program.
Here is a download link for MDIAG.ZIP (https://archive.org/download/MDIAG_ZIP/MDIAG.ZIP) , The Intel test program for the 8087. AKA MCPDIAG.EXE

Twospruces
November 10th, 2019, 04:08 PM
woohoo! found the problem! the handshaking signal BUSY <---> TEST was being held at +5V by the motherboard.... needed to bypass that, and VOILA! 17.37x IBM XT speed on math. 115 k Whetstones on Checkit3.

I would call this a success!

Twospruces
November 10th, 2019, 04:37 PM
Interestingly, MCPDIAG fails the last test... INTEGRITY. wonder what that's about... maybe I don't care, MATLAB is working.

Twospruces
November 10th, 2019, 04:49 PM
Here is a download link for MDIAG.ZIP (https://archive.org/download/MDIAG_ZIP/MDIAG.ZIP) , The Intel test program for the 8087. AKA MCPDIAG.EXE

thanks for this. this is a better version than I had, and it is more descriptive. I still fail one test..."environment test".

"tests the 80 bit wide internal math coprocessor register stack".

Seems odd that this would fail.... do other people run this test and pass? I assume so. I wonder what would make this specific test fail?

Chuck(G)
November 10th, 2019, 06:39 PM
If you have a look at the SIMTEL20 library, there's an Intel-sourced NDP test here (http://cd.textfiles.com/simtel/simtel20/MSDOS/EMULATRS/MCPDIAG.ZIP)

soviet9922
November 11th, 2019, 02:18 AM
I ended up not doing this i suppose it should be done in a smal proto board inserted into the cpu socket having the cpu and fpu on it.

Twospruces
November 11th, 2019, 03:40 PM
If you have a look at the SIMTEL20 library, there's an Intel-sourced NDP test here (http://cd.textfiles.com/simtel/simtel20/MSDOS/EMULATRS/MCPDIAG.ZIP)

Thanks ChuckG. Got same results. So I have a Z171 with coprocessor that runs applications apparently fine, added 150mA to the external power supply at 14.7V (so about 2W at the chip), and yet fails one and only one Intel "valid installation" test. interesting!

https://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=1&ved=2ahUKEwj11f7-u-PlAhVKdt8KHdA2BOgQFjAAegQIABAC&url=http%3A%2F%2Fbitsavers.trailing-edge.com%2Fcomponents%2Fintel%2FappNotes%2FAP-113_Getting_Started_With_the_Numeric_Data_Processo r_Feb81.pdf&usg=AOvVaw17u4C6VQx__vT0aJF4rPct

this is an interesting document for reference.
AP-113_Getting_Started_With_the_Numeric_Data_Processo r_Feb81

Chuck(G)
November 11th, 2019, 10:02 PM
Well, here's an old thread (http://www.vcfed.org/forum/archive/index.php/t-62257.html) where MCPDIAG fails on a Juko MB with V20 or 8088 installed.

Twospruces
November 12th, 2019, 04:17 AM
great find thanks! Good to know my use case on Z171 isn't necessarily defective. The thought of disassembling MCPDIAG is unappealing. After reading that application note for 8087, it seems like the best option for dealing with the interrupt may be to leave it disconnected altogether.. since there is likely no facility to deal with MCP exceptions via software interrupt built into a machine that was never intended to support a math coprocessor. My current dual socket adapter is a hand made thing; not the cleanest implementation, and I notice some ringing on the datapath.. I may spin a small board to see if better signal quality, and possibly that is related to the strange MCPDIAG test results. Stab in the dark but a nice board is better anyhow.

Next project-- convert the Z171 from 640kB of DRAM into 1MB of SRAM. Next Next project... increase clock from 4.77MHz to 9.54MHz.

Side note. I notice that the Z171 displays the odd random character on the screen when using V20.

george
November 12th, 2019, 09:53 PM
great find thanks! Good to know my use case on Z171 isn't necessarily defective. The thought of disassembling MCPDIAG is unappealing. After reading that application note for 8087, it seems like the best option for dealing with the interrupt may be to leave it disconnected altogether.. since there is likely no facility to deal with MCP exceptions via software interrupt built into a machine that was never intended to support a math coprocessor. My current dual socket adapter is a hand made thing; not the cleanest implementation, and I notice some ringing on the datapath.. I may spin a small board to see if better signal quality, and possibly that is related to the strange MCPDIAG test results. Stab in the dark but a nice board is better anyhow.

Next project-- convert the Z171 from 640kB of DRAM into 1MB of SRAM. Next Next project... increase clock from 4.77MHz to 9.54MHz.

Side note. I notice that the Z171 displays the odd random character on the screen when using V20.


There are several versions of MCPDIAG. Some complain about "integrity test" on XT machines (8087) and do not on ATs (80287/387/487), some output the same error on AT machines and not on XTs. I can make some tests and upload here the one that works fine on XT machines if someone is interested. I like MCPDIAG because it loads the FPU for 5 minutes and it often discovers problems when FPU is overclocked/overheated. I don't like MCPDIAG because it is tightly "hardwired" by using vectors that only Intel and licensed by Intel FPUs produce and it simply does not run on NPUs designed by Intel's competitors that produce slightly different results but otherwise work perfectly.

Twospruces
November 13th, 2019, 04:12 AM
There are several versions of MCPDIAG. Some complain about "integrity test" on XT machines (8087) and do not on ATs (80287/387/487), some output the same error on AT machines and not on XTs. I can make some tests and upload here the one that works fine on XT machines if someone is interested. I like MCPDIAG because it loads the FPU for 5 minutes and it often discovers problems when FPU is overclocked/overheated. I don't like MCPDIAG because it is tightly "hardwired" by using vectors that only Intel and licensed by Intel FPUs produce and it simply does not run on NPUs designed by Intel's competitors that produce slightly different results but otherwise work perfectly.

George that would be awesome.
Sounds like you know how to make MCPDIAG run interations; I didnt see anything that let me do that, but I saw an iteration count.
Anyhow I would be very interested in getting a valid MCPDIAG for XT. I can test it and report back.

george
November 14th, 2019, 06:09 AM
Hi, as requested here is a version that works fine on XT with me. MCPDIAG does its 5 min. iterations automatically when no error is detected upon its start.

Twospruces
November 14th, 2019, 07:04 AM
awesome, I will try and report back. Thanks very much!

Twospruces
November 14th, 2019, 03:59 PM
Hi, as requested here is a version that works fine on XT with me. MCPDIAG does its 5 min. iterations automatically when no error is detected upon its start.

hey thanks for this! seems to run well. passed all tests, and looping for 5 min. nice to have the file here in the forum stored for future reference as well!