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

Posted on 2024-04-04, 08:00

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by LSS10999

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I think RUBY-9719VG2AR also uses F85226FG, just I don't know which LDRQ# it uses, as I'm not seeing its boardview floating around. https://theretroweb.com/motherboard/manual/ruby-9719vga-65df468258b89524497458.pdf Pg 9. Confirmed. No boardview, but the block diagram shows a TPM header on the LPC. …

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

Posted on 2024-04-03, 11:17

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by LSS10999

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Since the LDRQ1# isn't configured as GPIO... You mean on Fintek side or PCH side? Can PCH configure this pin as GPI(O)? Can you hook a scope on LDRQ to see if fintek assert it low during DMA test? The PCH side. LDRQ1# can be configured as GPIO23, but as for the value I read from the register that …

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

Posted on 2024-04-03, 10:10

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by LSS10999

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Simply connect DMM COM probe to LDRQ and INPUT probe at any GND on the board. It should show value in range of 0,5-0,7V. This is voltage drop over internal substrate diode of a silicon chip. Almost every digital input/output has 2 "hidden" internal diodes between GND and VCC. That diodes are in …

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

Posted on 2024-04-02, 14:34

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by LSS10999

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Just for a quick test try DMM with diode test on LDRQ1 (without TPM connected) if you see 0,6V junction Vdrop on your wire - if it is really connected somewhere on PCH. Try to look in PCH datasheet if LDRQ input can read level from some status register or if it can be configured as input and then …

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

Posted on 2024-04-02, 13:59

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by LSS10999

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I'm not sure if the Fintek bridge is automatically aware of which bus master it has been designated as, or something needs to be done to "tell" the bridge about it. I'm yet to find anything else related to this from the documentations... Hey interestingly, the AF variant of the fintek chip appears …

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

Posted on 2024-04-01, 18:42

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by LSS10999

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Disabling the onboard audio allowed me to set IRQ7 for the sound card. However, it seems LDRQ1# I brought out is not working correctly, as DIAGNOSE currently gets stuck at DMA section, saying the DMA channels are not usable. IIRC there's a register to switch LDRQ1 between a GPIO pin and LDRQ. I'll …

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

Posted on 2024-04-01, 15:04

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by LSS10999

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Looks like Ralf Brown's PCICFG proved to be helpful here. Was able to solve the issue with IRQ usage. - IRQ5 was taken by the USB3 controller. - IRQ7 was taken by the onboard audio. Disabling the onboard audio allowed me to set IRQ7 for the sound card. However, it seems LDRQ1# I brought out is not …

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

Posted on 2024-04-01, 04:27

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by LSS10999

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I wonder if this really has anything to do with the BIOS PIRQ routing table. Here are the respective register dumps (60h, 64h, 68h) I obtained from my boards. RUBY-9719VG2AR 60: 0A0B0B0A // A: 10, B: 11, C: 11, D: 10 64: 000000D0 // SIRQ Enabled, Continuous Mode 68: 06800780 // E: -, F: 7, G: -, H: …

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

Posted on 2024-04-01, 00:15

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by LSS10999

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You can tell linux not to use the apic with the noapic option in the linux command line. If you use grub, you can press e to edit the line just before linux boots. I doubt Linux would work correctly that way... On the other hand I found a DJGPP version of lspci which might be useful. Will also give …

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

Posted on 2024-03-31, 13:45

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by LSS10999

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What IRQ do you setup for your soundcard? 5 or 7? None of the four options available in DIAGNOSE (3, 5, 7, 10) work. Check with DMM if this irq lines goes to fintek and have no shorts to neighbour signals. Use some flux for soldering. This is my second v0.2 build, as this revision is known to be …

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

Posted on 2024-03-31, 12:57

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by LSS10999

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weedeewee wrote on 2024-03-31, 12:47: I'm just saying that LDRQ is related to DMA, not interrupt. I already brought out the board's LDRQ1# with a wire and connected it to the adapter. It's just I cannot verify whether DMA works via DIAGNOSE, because IRQ is currently not working, blocking the …

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

Posted on 2024-03-31, 12:34

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by LSS10999

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but with IRQ test failing I cannot test if LDRQ1# is really working... ehm... fyi LPC Serial DMA/Master Request Inputs: LDRQ[1:0]# are used to request DMA or bus master access. Those chipsets usually have two LDRQ# signals. LDRQ0# is usually wired to SuperIO regardless of whether it's actually …

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

Posted on 2024-03-31, 11:16

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by LSS10999

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Okay, I got it. So far I've two v0.3 builds and neither worked correctly. Hey I did find one potential source of problems in 0.3. In the old version, all resistor packs shared a common VCC or GND. Now some packs have different pins pulled to VCC/GND. I've attached schematics showing what I mean. …

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Re: Has anyone tried ArcaOS for retro gaming?

Posted on 2024-03-25, 03:10

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by LSS10999

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A little update. A while ago I installed the latest GenAud driver for bringing audio out of Win/OS2 but I still could not get any audio output. The OS/2 part of the driver loaded just fine and recognized the UniAud device. No errors reported. On the Win/OS2 side, however, the driver is registered, …

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

Posted on 2024-03-24, 01:11

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by LSS10999

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I'm afraid I've never tested 0.3, I have no reason to think it's broken but I can't be 100% sure. 0.2 is the last one I've tested and got 100% working. (sorry but I don't actually have any space to assemble stuff at the moment, assume everything in the repository is in a constant state of flux …

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

Posted on 2024-03-23, 07:56

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by LSS10999

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Say is the v0.3 version of PCB actually usable? Just built another v0.3 board using a F85226AF instead of F85226FG, yet it still doesn't work correctly. I inspected the job with a loupe and could not find anything that looks like bridges and such. When I tested the v0.3 board with the X99M Killer …

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

Posted on 2024-03-22, 04:20

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by LSS10999

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By "can't be detected" you mean a soundacd configuration utility from card manuf. or unisound or some sb testing utility or game? In my case the ess1869 was not detected and configured by esscfg until I enabled 6xx IO range. Without config it didn't play. I'm using UNISOUND. Tried a CT2950 and a …

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

Posted on 2024-03-22, 01:11

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by LSS10999

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I just did some further tests on the supposedly working dISAppointment and found out it might not be 100% usable. This might have also rendered several questions I posted before invalid... This is on an ASRock X99M Killer 3.1. I connected all but LDRQ# to dISAppointment and on the surface it seems …

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

Posted on 2024-03-12, 09:41

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by LSS10999

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This might have been asked many times, but there is no way to buy these pre-assembled for those who cannot solder for whatever reason? I bought me an ALIX 3D3 for extremely cheap which has an LPC output so I thought oh I could just buy that, get me a dISAppointment, and off ya go. Its an AMD Geode …

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

Posted on 2024-03-10, 02:13

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by LSS10999

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So, just taking a casual glance at the manual for my Recording PC's motherboard, here's the pinout of the TPM header: 1 LCLK 2 GND 3 LFRAME# 4 <(KEY)> 5 LRESET# 6 +5V 7 LAD3 8 LAD2 9 +3.3V 10 LAD1 11 LAD0 12 GND 13 SMB_CLK 14 SMB_DAT 15 +3V Stdby 16 SERIRQ 17 GND 18 CLKRUN# 19 LPCPD# 20 LDRQ# So …

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