On Saturday, September 14, 2019 at 1:48:53 PM UTC-5, Louis Ohland wrote:
> Micro Channel Architecture Handbook, pgs 172-174

> The subaddressing extension is not the only way the reach of POS can be
> extended, however. The Micro Channel design also allows the use of two
> special set-up files to adjust and initialize expansion board functions
> in ways that POS by itself cannot handle. These special files are
> discussed in the next chapter.

Louis, can you link me to the next chapter??

> Louis, can you link me to the next chapter??

I somehow gained two copies over the years (it would be cool to get autographs on both now) - but it isn't too bad at under $40:

https://www.amazon.com/dp/0135834937

MCAH is on Internet Archive, unfortunately not freely downloadable. I
sign in, "borrow" it, then do screen caps of each page. MAJ Tom OCRs it,
then I HTMLize it.

Note: The MCAH has a goodly part ad rush, pre-90 facts, and stuff from
published MCA references. For instance, the subaddressing stuff can be
found in the HITR. Also, there are inaccuracies. WBST pointed out that
at least one section that I quoted was wrong.

The "strength" of the MCAH is the scattered nuggets of well written, or
re-written, MCA functions. I had considered more HTMLizing, but there
isn't enough stuff in it that wouldn't require extensive commenting to
bring out the significance of the text.

Ryan Alswede wrote:
> On Saturday, September 14, 2019 at 1:48:53 PM UTC-5, Louis Ohland wrote:
>> Micro Channel Architecture Handbook, pgs 172-174
>
>> The subaddressing extension is not the only way the reach of POS can be
>> extended, however. The Micro Channel design also allows the use of two
>> special set-up files to adjust and initialize expansion board functions
>> in ways that POS by itself cannot handle. These special files are
>> discussed in the next chapter.
>
> Louis, can you link me to the next chapter??
>

> https://www.amazon.com/dp/0135834937

I have no problem buying the book, but does it really cover XPOS and initialization programs?? Does it have any sample code or break down how to compile an initialization program in C?

Yes, in a general way. No. No.

Ryan Alswede wrote:
>> https://www.amazon.com/dp/0135834937
>
> I have no problem buying the book, but does it really cover XPOS and initialization programs?? Does it have any sample code or break down how to compile an initialization program in C?
>

IBMMuseum schrieb am Dienstag, 10. Oktober 2023 um 05:11:03 UTC+2:
> > Louis, can you link me to the next chapter??
> I somehow gained two copies over the years (it would be cool to get autographs on both now) - but it isn't too bad at under $40:
>
> https://www.amazon.com/dp/0135834937
Hm, I have that book, with the signature from Chet inside. If I can help with a scan, let me know.

> Hm, I have that book, with the signature from Chet inside...

How was yours autographed? - I may be able to get mine autographed.

I want a Chet Heath merch store, d*mmit! Coffee mugs, autographs,
t-shirts...

IBMMuseum wrote:
>> Hm, I have that book, with the signature from Chet inside...
>
> How was yours autographed? - I may be able to get mine autographed.
>

>>> Hm, I have that book, with the signature from Chet inside...
> I want a Chet Heath merch store, d*mmit! Coffee mugs, autographs, t-shirts...

Yeah, I know you do...

> Yes, in a general way. No. No.

https://www.ardent-tool.com/docs/pdf/PS2_Model_80_Technical_Reference_Apr87.pdf

Pages 81 and 82.

Disable interrupts <-probably not possible in DOS mode
Push CDSETUP high. 0x96 bit 3
Disable the card. 0x102 bit 0 to off
Do POS / XPOS
Enable the card 0x102 bit 0 to on
Set CDSETUP Low 0x96 write 0x00
Reenable interrupts

0x96 bit 3, sounds system board.

Ryan Alswede wrote:
>> Yes, in a general way. No. No.
>
> https://www.ardent-tool.com/docs/pdf/PS2_Model_80_Technical_Reference_Apr87.pdf
>
> Pages 81 and 82.
>
> Disable interrupts <-probably not possible in DOS mode
> Push CDSETUP high. 0x96 bit 3
> Disable the card. 0x102 bit 0 to off
> Do POS / XPOS
> Enable the card 0x102 bit 0 to on
> Set CDSETUP Low 0x96 write 0x00
> Reenable interrupts
>

Read it, no mention of POS 6 or 7. Doesn't look like XPOS.

Louis Ohland wrote:
> 0x96 bit 3, sounds system board.
>
> Ryan Alswede wrote:
>>> Yes, in a general way. No. No.
>>
>> https://www.ardent-tool.com/docs/pdf/PS2_Model_80_Technical_Reference_Apr87.pdf
>>
>>
>> Pages 81 and 82.
>>
>> Disable interrupts   <-probably not possible in DOS mode
>> Push CDSETUP high. 0x96 bit 3
>> Disable the card.  0x102 bit 0 to off
>> Do POS / XPOS
>> Enable the card 0x102 bit 0 to on
>> Set CDSETUP Low 0x96 write 0x00
>> Reenable interrupts
>>

https://www.ardent-tool.com/RS6000/docs/pdf/SA23-2647-00_RS6000_Hardware_Technical_Reference_Micro_Channel_Architecture_1990.pdf

Figure 1-61. POS I/O Address Space page 85

POS Subaddress Extension Field: page 88, 89

Louis Ohland wrote:
> Read it, no mention of POS 6 or 7. Doesn't look like XPOS.
>
> Louis Ohland wrote:
>> 0x96 bit 3, sounds system board.
>>
>> Ryan Alswede wrote:
>>>> Yes, in a general way. No. No.
>>>
>>> https://www.ardent-tool.com/docs/pdf/PS2_Model_80_Technical_Reference_Apr87.pdf
>>>
>>>
>>> Pages 81 and 82.
>>>
>>> Disable interrupts   <-probably not possible in DOS mode
>>> Push CDSETUP high. 0x96 bit 3
>>> Disable the card.  0x102 bit 0 to off
>>> Do POS / XPOS
>>> Enable the card 0x102 bit 0 to on
>>> Set CDSETUP Low 0x96 write 0x00
>>> Reenable interrupts
>>>

I don't believe a "setup cycle" can happen once DOS is loaded. Doesn't seem like CDSETUP is going high. INP and OUT with QBasic gets no reaction from the 8F62 card.

Unless Peter lets us know the source of the initialization ADF programs documentation that's on his website on how to write these programs I'm out of ideas.

https://www.ardent-tool.com/docs/patent/US5446869.pdf

I sang this song a hundred, maybe a thousand years ago
No one ever listens, I just play and then I go
Off into the sunset like the Western heroes do
Tell me what you're gonna do

Ryan Alswede wrote:
>> Yes, in a general way. No. No.
>
> https://www.ardent-tool.com/docs/pdf/PS2_Model_80_Technical_Reference_Apr87.pdf
>
> Pages 81 and 82.
>
> Disable interrupts <-probably not possible in DOS mode
> Push CDSETUP high. 0x96 bit 3
> Disable the card. 0x102 bit 0 to off
> Do POS / XPOS
> Enable the card 0x102 bit 0 to on
> Set CDSETUP Low 0x96 write 0x00
> Reenable interrupts
>

Ryan, I place NO faith in any IBM documentation as being %100 correct.
BUT... this patent description might be useful. I can HTML-ize it.

A map of the PCI configuration data space is shown in Table II:

TABLE II
BYTE(S) DESCRIPTION ACCESS TYPE
0-1 Vendor Identification Read Only
2-3 Device Identification Read Only
4-5 Command Read/Write
6-7 Status Read/Write
8 Revision D Read Only
9-Bh Class Code Read Only
Ch. Cache Line Size Read/Write
Dh Latency Timer Read/Write
Eh Header Type Read Only
Fh Built In Self Test Read/Write
10-2th Base Address Registers Read/Write
28h-2Fh Reserved M
3Oh-33 Expansion ROM Base Address Read/Write
34h-37h Reserved o
38h-3B Reserved
3Ch Interrupt Line Read Only
3Dh Interrupt Pin Read Only
3Eh MinGNT Read Only
3Fh Max-LAT Read Only
40h-FF Device Specific -

Louis Ohland wrote:
> https://www.ardent-tool.com/docs/patent/US5446869.pdf
>
> I sang this song a hundred, maybe a thousand years ago
> No one ever listens, I just play and then I go
> Off into the sunset like the Western heroes do
> Tell me what you're gonna do
>
>
> Ryan Alswede wrote:
>>> Yes, in a general way. No. No.
>>
>> https://www.ardent-tool.com/docs/pdf/PS2_Model_80_Technical_Reference_Apr87.pdf
>>
>>
>> Pages 81 and 82.
>>
>> Disable interrupts   <-probably not possible in DOS mode
>> Push CDSETUP high. 0x96 bit 3
>> Disable the card.  0x102 bit 0 to off
>> Do POS / XPOS
>> Enable the card 0x102 bit 0 to on
>> Set CDSETUP Low 0x96 write 0x00
>> Reenable interrupts
>>

Louis I've been trying for the past week to get the 8F62 card to tell me it's PCI vendor and device IDs using that flow chart doc and QB. The card says nothing back...

It should respond bytes from those locations with something like 0x10, 0x22 and 0x20 0x00

1022 : 2000 is the vendor and card ID for the PCnet chipset. Same as the sister card IBM Phoenix PCI AIX PCnet card.

> TABLE II
> BYTE(S) DESCRIPTION ACCESS TYPE
> 0-1 Vendor Identification Read Only
> 2-3 Device Identification Read Only

Uh, I >assume< you get POSID, at least?

Ryan Alswede wrote:
> The card says nothing back...

Whole lotta details. Was the bridge chip enabled? I think the XPOS is on it.

Ryan Alswede wrote:
> I don't believe a "setup cycle" can happen once DOS is loaded. Doesn't seem like CDSETUP is going high. INP and OUT with QBasic gets no reaction from the 8F62 card.
>
> Unless Peter lets us know the source of the initialization ADF programs documentation that's on his website on how to write these programs I'm out of ideas.
>

https://www.ardent-tool.com/RS6000/RS6000_9-K.html#Base_Card

U5 Adaptec ASIC-9060R BLLA741PT

Ryan Alswede wrote:
> I don't believe a "setup cycle" can happen once DOS is loaded. Doesn't seem like CDSETUP is going high. INP and OUT with QBasic gets no reaction from the 8F62 card.
>
> Unless Peter lets us know the source of the initialization ADF programs documentation that's on his website on how to write these programs I'm out of ideas.
>

> Whole lotta details. Was the bridge chip enabled? I think the XPOS is on it.
I followed the flow chart. Of course you can get POS values back all day long. Card does not respond to XPOS, never gives me back any values in Pos reg 4.

Where is POS 5?

Ryan Alswede wrote:
>> Yes, in a general way. No. No.
>
> https://www.ardent-tool.com/docs/pdf/PS2_Model_80_Technical_Reference_Apr87.pdf
>
> Pages 81 and 82.
>
> Disable interrupts <-probably not possible in DOS mode
> Push CDSETUP high. 0x96 bit 3
> Disable the card. 0x102 bit 0 to off
> Do POS / XPOS
> Enable the card 0x102 bit 0 to on
> Set CDSETUP Low 0x96 write 0x00
> Reenable interrupts
>

>>Where is POS 5?
In the past POS reads from AIX, POS 5 is 0xFF

Not mentioned in the patent doc.