Re: TinyLlama (Vortex86EX SBC)

Posted on 2023-06-03, 22:43

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by rasteri

in Marvin \ System Specs

in Marvin \ System Specs

@rasteri Since (I believe) you are the author of the BIOS used by the Tinyllama, could you please take a look at this issue I am trying to figure out with the creator or JEMMEX? --> https://github.com/Baron-von-Riedesel/Jemm/issues/16#issuecomment-1574798205 It seem that the BIOS isn't reporting …

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Re: TinyLlama (Vortex86EX SBC)

Posted on 2023-06-02, 11:41

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by rasteri

in Marvin \ System Specs

in Marvin \ System Specs

ahmadexp wrote on 2023-06-01, 16:56: Sorry if this is a noob question. On the keyboard I get "Insert mode" enabled after every press of Enter. This must be a bug, right? Have you tried a different keyboard? Maybe HIDMAN is being weird...

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Re: TinyLlama (Vortex86EX SBC)

Posted on 2023-05-25, 12:07

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by rasteri

in Marvin \ System Specs

in Marvin \ System Specs

With relatively high-speed devices like SD cards there's more to consider than just current carrying capacity, I would be worried about upsetting signal integrity on certain combinations of card/OS/transfer mode. If it works on your setup then great, but I wouldn't be using it in situations where …

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Re: dISAppointment - LPC to ISA adapter - ISA on modern motherboards

Posted on 2023-05-14, 04:32

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by rasteri

in Release Announcements

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LSS10999 wrote on 2023-05-13, 05:45: And another question: Do I need to connect at least one GNDs between the TPM port and dISAppointment? And do I also need to connect at least one +3V or +3VSB between them? Yeah you'll want at least one ground. No 3.3v is needed though - it gets all the power it …

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Re: HIDman - USB to PS/2 converter (Open Source)

Posted on 2023-05-12, 10:04

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by rasteri

in Release Announcements

in Release Announcements

Are you still planning to work on the PS2-only version, or is it 'obsolete' (or superseded) by the AXP version? To be honest I'm not sure. Logically I probably should discontinue the PS/2 version as it's more expensive and less useful, but the form factor is much nicer IMO. BTW there's a BOM with …

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Re: HIDman - USB to PS/2 converter (Open Source)

Posted on 2023-05-11, 16:54

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by rasteri

in Release Announcements

in Release Announcements

Thanks for the update. I'll plan to order some PCBs unless I hear otherwise. Just tested it, it seems to work. I suppose the AXP version in github should be considered more or less"version 1.0", as I can't see me changing it much after this. of course the firmware still needs a bit of work but it's …

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Re: HIDman - USB to PS/2 converter (Open Source)

Posted on 2023-05-11, 00:45

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by rasteri

in Release Announcements

in Release Announcements

By the way, was there any change in the AXP PCB from the original version? It looks like I ordered some a while ago and didn't even remember, haha. However, I forgot to order the enclosure front/rear panels so I guess I might as well order the newer AXP PCB too... Yeah I moved the position of the …

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Re: HIDman - USB to PS/2 converter (Open Source)

Posted on 2023-05-10, 15:50

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by rasteri

in Release Announcements

in Release Announcements

If I'm planning to build one of these, should I build the PS2USB or AXP version? I know they are still a work in progress but I'd like to contribute with testing, etc. It looks like the AXP version is the 'better' version with the extra serial output feature? Yeah I would recommend building the AXP …

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Re: dISAppointment - LPC to ISA adapter - ISA on modern motherboards

Posted on 2023-05-03, 16:31

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by rasteri

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If it's just checking whether the chip works the LDRQ# signal may not be necessary at this point... so maybe I'll try if I have some time. Exactly, we just need a go/no-go test on the disappointment. No need for DMA yet. The motherboard's TPM header has a few pins mapped to +3V, which is not used …

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Re: dISAppointment - LPC to ISA adapter - ISA on modern motherboards

Posted on 2023-05-03, 11:22

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by rasteri

in Release Announcements

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I built a dISAppointment myself a while ago, but as I just tested with this motherboard, it doesn't appear to be working... my initialization program couldn't detect the F85226FG bridge after setting up the necessary parameters (got FFFFFFFF so nothing was found)... I did make an inspection on the …

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Re: dISAppointment - LPC to ISA adapter - ISA on modern motherboards

Posted on 2023-04-26, 12:11

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by rasteri

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IF the above assumptions about human laziness are correct, then LDRQ#0 may still exist on both of those chipsets as GPP_A7 and logically, the same chipset straps documented in the 9 series chipset could enable it. In the 9 series chipset LDRQ#1 is configurable as GPIO instead. It might be possible …

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Re: dISAppointment - LPC to ISA adapter - ISA on modern motherboards

Posted on 2023-04-24, 12:36

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by rasteri

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I was just watching PR02X Dell E-port Plus II docking station teardown https://www.youtube.com/watch?v=Wvyp0teLPTg and that thing has LPC47N237 inside, close enough: https://pdf1.alldatasheet.com/datasheet-pdf/view/178020/SMSC/LPC47N227_07.html matching laptop diagram https://forum.laboneinside.com …

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Re: dISAppointment - LPC to ISA adapter - ISA on modern motherboards

Posted on 2023-04-20, 13:58

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by rasteri

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The ISA protocol allows for memory-mapped transactions to components placed on the bus. In order to support these transactions it is, therefore, necessary to support memory-mapped transaction on the LPC bus. The LPC specification specifies that such transactions are supported on the LPC bus. Indeed …

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Re: dISAppointment - LPC to ISA adapter - ISA on modern motherboards

Posted on 2023-04-20, 11:04

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by rasteri

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LSS10999 wrote on 2023-04-20, 01:37: It also doesn't have PCICLK, PCIRST#, SERIRQ and PWRDN#. Don't know which of these are really required... (just SERIRQ maybe?). You'll definitely need PCICLK, PCIRST and SERIRQ. Dunno what that 24MHz clock line is for but PCICLK is supposed to be 33MHz

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Re: dISAppointment - LPC to ISA adapter - ISA on modern motherboards

Posted on 2023-04-17, 12:13

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by rasteri

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It seems the BOM is a bit vague about some parts. - There are footprints for some 745C101 resistor arrays (R_Network08), but from the photo in the OP, a bunch of resistors were used instead. The resistance (ohms) of the individual resistors are too blurry to be determined from the photo so I'm not …

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Re: dISAppointment - LPC to ISA adapter - ISA on modern motherboards

Posted on 2023-04-14, 11:24

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by rasteri

in Release Announcements

in Release Announcements

To answer some FAQs - 1. Can I have multiple ISA slots? -- I'd recommend using a solution like this - https://www.vogons.org/viewtopic.php?f=46&t=41599 - I don't have any interest in modifying the disappointment board to add more slots, as then it likely wouldn't fit in a case. 2. Can I have power …

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Re: dISAppointment - LPC to ISA adapter - ISA on modern motherboards

Posted on 2023-04-11, 11:52

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by rasteri

in Release Announcements

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Oh and here's the linux version of the utility to set up the ports.

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Re: dISAppointment - LPC to ISA adapter - ISA on modern motherboards

Posted on 2023-04-11, 11:50

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by rasteri

in Release Announcements

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Made a video about it - https://www.youtube.com/watch?v=putHMSzu5og

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Re: dISAppointment - LPC to ISA adapter - ISA on modern motherboards

Posted on 2023-04-10, 11:39

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by rasteri

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I tried to get it working on the latest version of Debian (32bit), but had mixed results. I was able to get the init program ported easily enough, but then isapnptools wouldn't detect anything. My guess is that since isapnptools hasn't been updated since 2007 it relies on some now-deprecated gcc …

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Re: dISAppointment - LPC to ISA adapter - ISA on modern motherboards

Posted on 2023-04-07, 12:01

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by rasteri

in Release Announcements

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LSS10999 wrote on 2023-04-07, 03:43: Hmmm... does the Foxconn one (the one in the OP?) require any modding? Yeah to enable LDRQ on the TPM header you have to put a blob of solder over a zero-ohm link, and lift the LDRQ pin of the Super I/O chip.

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