View Profile: fritzeflink - Vintage Computer Forum

January 25th, 2021, 05:31 AM

fritzeflink replied to a thread Siemens PCD-5T Pentium 60Mhz configuration issue in Later PCs

The security setup in bios should be: System Password: Not Set System Lock: Disable Keyboard Lock: Disable Setup Lock: Disable

7 replies | 139 view(s)

January 24th, 2021, 12:46 PM

fritzeflink replied to a thread Siemens PCD-5T Pentium 60Mhz configuration issue in Later PCs

As I don't have any eisa boards anymore my PCD-5t is the desktop version with only PCI and ISA boards. Can you please post the eisa config file...

7 replies | 139 view(s)

January 24th, 2021, 02:13 AM

fritzeflink replied to a thread Siemens PCD-5T Pentium 60Mhz configuration issue in Later PCs

Hi ... the board is a D808 and you will get documents from https://support.ts.fujitsu.com/ there you have to go to "Produkt Support" -> ...

7 replies | 139 view(s)

January 22nd, 2021, 08:18 PM

lowen replied to a thread Why did RS place a power key switch on external HDs? in Tandy/Radio Shack

That's pretty interesting; I didn't know that tidbit.

8 replies | 276 view(s)

January 22nd, 2021, 07:30 AM

lowen replied to a poll System architecture for a Z380 TRS-80 compatible. in Tandy/Radio Shack

I know, replying to myself is bad form... but I forgot to mention, thanks to both my coffee not having kicked in AND having to type on my phone that...

55 replies | 1078 view(s)

January 22nd, 2021, 04:08 AM

lowen replied to a poll System architecture for a Z380 TRS-80 compatible. in Tandy/Radio Shack

Yeah, I think I have a good path forward with some interest by more people than just me who can do the work. Yes. I have personally already...

55 replies | 1078 view(s)

January 21st, 2021, 08:54 PM

lowen replied to a thread Why did RS place a power key switch on external HDs? in Tandy/Radio Shack

My first TRS-80 hard disk system was an Enhanced Model II (model 16 upgrade installed) with two 12MB disks, a primary and a secondary; the secondary...

8 replies | 276 view(s)

January 21st, 2021, 02:23 PM

lowen replied to a poll System architecture for a Z380 TRS-80 compatible. in Tandy/Radio Shack

Wow, that's quite the board there. It's all open, so ordering through tindie isn't required, boards can be fabbed other places, but it's pretty...

55 replies | 1078 view(s)

January 21st, 2021, 01:29 PM

lowen replied to a poll System architecture for a Z380 TRS-80 compatible. in Tandy/Radio Shack

You know, this might not be a bad idea at all. I honestly hadn't thought of doing it that way. Thanks for the insight, and the inspiration! ...

55 replies | 1078 view(s)

January 21st, 2021, 10:56 AM

lowen replied to a poll System architecture for a Z380 TRS-80 compatible. in Tandy/Radio Shack

Not at all stupid, and essentially similar to the Model 16/6000 design with the Z80 doing I/O and Model II software, but the 68K being available for...

55 replies | 1078 view(s)

January 21st, 2021, 10:23 AM

lowen replied to a poll System architecture for a Z380 TRS-80 compatible. in Tandy/Radio Shack

So, what about an RC2014 RTL8019 card? See https://github.com/Manawyrm/RC2014-Ethernet and https://github.com/Manawyrm/RC2014-Ethernet-Firmware ? ...

55 replies | 1078 view(s)

January 21st, 2021, 09:09 AM

lowen replied to a poll System architecture for a Z380 TRS-80 compatible. in Tandy/Radio Shack

Point taken. If no one has an issue with discussing the nuts and bolts here, I'm fine with doing that. And note that this is a hobby project; I am...

55 replies | 1078 view(s)

January 21st, 2021, 07:54 AM

lowen replied to a thread TRSDOS/LSDOS 7x in Tandy/Radio Shack

Yes, thank you for the reminder. He hand-typed volume I of 'The Source' as published; Tim Mann made the statement you quoted about it being a yeoman...

17 replies | 1274 view(s)

January 20th, 2021, 02:44 PM

lowen replied to a poll System architecture for a Z380 TRS-80 compatible. in Tandy/Radio Shack

Drifting a bit off-topic.... At $dayjob, we have 25 or so VLANs and use Cisco 3750 and 7600 series equipment, for the most part, with 10Gb/s...

55 replies | 1078 view(s)

January 20th, 2021, 01:02 PM

lowen replied to a poll System architecture for a Z380 TRS-80 compatible. in Tandy/Radio Shack

Yeah, I'm just a bit paranoid when it comes to denial of service attacks, and I've seen 10Mb/s devices fail hard just from broadcast traffic on...

55 replies | 1078 view(s)

January 20th, 2021, 11:52 AM

lowen replied to a poll System architecture for a Z380 TRS-80 compatible. in Tandy/Radio Shack

CPLDs occupy the middle tier before you get to the complexity of FPGAs. These days you program them the same way, using an HDL of some type. It's a...

55 replies | 1078 view(s)

January 20th, 2021, 10:40 AM

lowen replied to a poll System architecture for a Z380 TRS-80 compatible. in Tandy/Radio Shack

Yeah; once I get sufficient feedback here I'm probably going to move implementation discussion to the retrobrewcomputers forum. I'm going to need...

55 replies | 1078 view(s)

January 20th, 2021, 08:49 AM

lowen replied to a poll System architecture for a Z380 TRS-80 compatible. in Tandy/Radio Shack

I'm familiar with LWIP but not uIP; worth looking into. I opened this discussion specifically because I wanted feedback and ideas; I certainly don't...

55 replies | 1078 view(s)

January 20th, 2021, 08:41 AM

lowen replied to a thread TRSDOS/LSDOS 7x in Tandy/Radio Shack

Ask away! So, find a copy of the TRS-80 Model 4 Technical Reference manual, AND a copy of the TRS-80 Model 4/4P Technical Reference manual on...

17 replies | 1274 view(s)

January 20th, 2021, 07:15 AM

lowen replied to a thread TRSDOS/LSDOS 7x in Tandy/Radio Shack

Bill, good to see you here. Yes, TRSDOS/LS-DOS source is available, thanks to the generosity of the copyright owners Bill Schroeder and Roy Soltoff,...

17 replies | 1274 view(s)

January 19th, 2021, 07:00 AM

lowen replied to a poll System architecture for a Z380 TRS-80 compatible. in Tandy/Radio Shack

These two posts have inter-related topics, so I'll reply to both once.... This is actually right on topic, because this is a capability I...

55 replies | 1078 view(s)

January 18th, 2021, 01:46 PM

lowen replied to a poll System architecture for a Z380 TRS-80 compatible. in Tandy/Radio Shack

I will certainly keep that in mind, and I appreciate your offer!

55 replies | 1078 view(s)

January 18th, 2021, 12:17 PM

lowen replied to a poll System architecture for a Z380 TRS-80 compatible. in Tandy/Radio Shack

Indeed! :-) As a bonus the Z380 is still an active component and can be ordered new. Z280 hasn't been new in 23 years. The typically...

55 replies | 1078 view(s)

January 18th, 2021, 05:25 AM

lowen replied to a thread Z'DOS Model I & III on eBay in Tandy/Radio Shack

See http://www.trs-80.com/wordpress/multidos/trs-80-dos-multidos-5-zdos/ for the scoop on Z'DOS.

2 replies | 150 view(s)

January 18th, 2021, 04:53 AM

lowen replied to a poll System architecture for a Z380 TRS-80 compatible. in Tandy/Radio Shack

Thanks for the thoughts! You're very right when you say using an ARM just feels wrong; and yet TRS-IO uses an ESP32.... Storage emulation especially...

55 replies | 1078 view(s)

January 16th, 2021, 11:54 AM

lowen replied to a poll System architecture for a Z380 TRS-80 compatible. in Tandy/Radio Shack

Care to elaborate any on those choices?

55 replies | 1078 view(s)

January 16th, 2021, 06:51 AM

lowen replied to a thread Why does TRS-80 Model III/4 corrupt inserted disks on power-on/off? in Tandy/Radio Shack

The Tandon and Texas Peripherals (a joint Tandy/Tandon venture) drives that Tandy used in the Models I, III, and 4 (until the 4D) lacked a proper...

8 replies | 240 view(s)