Re: Better understanding barrel battery charging circuit
Posted on 2023-12-07, 18:19
I'd imagine if that were the case, the manual would have a loud warning not to power on the system with the jumper in the CLEAR CMOS position.
Re: Better understanding barrel battery charging circuit
Posted on 2023-12-07, 02:00
Deunan wrote on 2023-12-06, 13:55: 4) You can connect CR2032 between pins 3 and 4, that way you will not need to modify the mobo in any way. That would make the clock always powered by the battery, even when the system was powered on.
Re: May I ask a question about hard disk partitions?
Posted on 2023-11-30, 15:09
If that's shingled (SMR) drive, doing a full (non-quick) format means a whole bunch of unnecessary writes...
Re: swapping CDs in a physical CD ROM drive
Posted on 2023-11-28, 02:28
First make sure the DOSBox build you are using has been compiled with physical CD support. Check the output of "mount -cd" to confirm the physical drives are detected by DOSBox, and which value to use for -usecd. Then use either "-aspi", "-ioctl_dio", "-ioctl_dx", "-ioctl_mci" or "-noioctl" to test …
Re: NE2000 patch referenced "missing" file?
Posted on 2023-11-27, 03:38
configure.in is usually a deprecated name for configure.ac . Although in DOSBox it was renamed in 2013, so possibly the patch is doing something really stupid (attempting to modify the results of a configure script)...
Re: MS-DOS and sector-aligned partitioning of a SATA SSD
Posted on 2023-11-21, 20:25
From what I know the FAT table is not a convenient cluster size multiple, so the actual files that start right after the FAT table will be out of alignment. One would need to start the data region from a specific sector, and I don't know if this is possible or how to do it. I may be completely …
Re: USB-B musical keyboard with old computer using MIDI
Posted on 2023-11-18, 20:42
EDIT : If you just want to use the keyboard as controller, see also this https://www.serdashop.com/USBMIDIHost I think that's exactly what OP needs... but that price is rather excessive. You can see from the screenshots that it's only a PIC MCU that sells for less than $10, so you could save quite …
Re: SD to IDE adapter not found on two different PCs
Posted on 2023-11-08, 02:50
Please don't operate a HDD sitting on a metal surface like that. At least put something non-metal underneath to insulate.
Re: SD to IDE adapter not found on two different PCs
Posted on 2023-11-07, 06:09
Assuming you've connected the external power and connected the IDE cable the correct way round, I would say you just bought a dud.
Re: P/I-P55T2P4 RTC replacement
Posted on 2023-11-03, 07:00
mine p55t2p4. 32,768hz quartz + 30yr battery from famicom cartridge (its still 3v+). sometimes everything can be done with improvised means and without waiting for deliveries) From the other photos, you probably could have traced the battery supply pins back to diodes and used the existing battery …
Re: P/I-P55T2P4 RTC replacement
Posted on 2023-10-31, 03:16
I’ve added some pictures of the ODIN, PIN number one is the top right one on the last picture. So 2,3,16,20,22 is “removed”. This doesn’t match up with the necroware which states the following pins should not be used: 2,3,16,20,21,22. It should be fine. Pin 21 is the RCLR# pin, used to wipe the …
Re: Converting Removable CF cards to Fixed... any good place for information about CF controllers?
Posted on 2023-10-31, 03:06
By the way, I think CF card firmware may additionally include some quirks. I had a Sandisk 64GB CF card exhibit a very odd behavior when used with a CF-IDE adapter in Windows -- If the card has been manipulated by anything other than Windows itself, Windows will not see the actual partition table …
Re: Speed of the dynamic core..
Posted on 2023-10-16, 06:34
Use a fixed cycle count instead of auto if you want consistent results.
Re: I disassembled an S3 Trio64 BIOS and am annotating it
Posted on 2023-10-06, 21:06
Would the beep function be for when the bios is told to print a bell character (ascii code 7) ?
Re: SDHC or CF for OS on retro build
Posted on 2023-10-03, 08:12
CompactFlash is definitely more reliable as they use a native IDE interface (IDE to CompactFlash adapters are passthrough connectors, no components).
Re: Win7 32bit in mixed network, not sure if I'm having a file size problem....
Posted on 2023-09-26, 19:19
Re: Orpheus Soundcard: a new DOS soundcard with SPDIF/OPL3/MPU support
Posted on 2023-09-26, 06:07
Also it's interesting that the TV setup program states that using ULTRAMID is the preferred solution and provides maximum sound quality. Not so much that it provides the best quality but rather it's the only way the game can actually output anything to a GUS. ULTRAMID gives a software interface ( …
Re: DOSBox ECE (for Windows & Linux)
Posted on 2023-09-12, 09:22
It is extremely simple to write a vertex shader that will ensure the output window is scaled by integer multiples only.
Re: Garbled text when using CF-IDE adapter on 386 motherboard
Posted on 2023-09-11, 02:16
There is absolutely no reason for a HDD to short pin 28 to GND (it shouldn't be driven by the drive at all, it's an input signal) and it's definitely not ATA compliant.
Re: Garbled text when using CF-IDE adapter on 386 motherboard
Posted on 2023-09-10, 10:36
Poor quality CF adapter probably connects pin 28 to ground.
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