Create accountLogin

Recent searches

No recent searches

Search options

Only available when logged in.
med-mastodon.com is one of the many independent Mastodon servers you can use to participate in the fediverse.
Medical community on Mastodon

Administered by:

Server stats:

416
active users

med-mastodon.com: AboutProfiles directoryPrivacy policy

Mastodon: AboutGet the appKeyboard shortcutsView source codev4.3.7

#atari

17 posts13 participants4 posts today
Continued thread
Public
Charlie Balogh

The "TOS emulator" runs fine, so I pulled out the soldering iron and installed the STE "DMA fix" I also bought.

This is a recent-ish hardware solution to work around a signal timing issue with the older C025913-38 DMA chip in these machines, that can cause data corruption with ACSI peripherals. Atari made a newer version of the chip, the C398739-001A, that doesn't suffer from the issue, but that's hard to find. This adapter board offers a solution for the older chip.

The "ST DMA converter" board, both top and bottom sides. The top side is empty, just pins for the old DMA chip to sit in, the bottom side contains several SMD components, including some 74-series logic chips, capacitors and resistors.
Mosaic-image of the installation process. The managed to pull the old DMA chip very cleanly. Not just the board got minor to no damage, but also the chip's pins remained very clean. I soldered the DMA fix board directly into the mainboard. The DMA chip now sits on top of it.
Because the "TOS emulator" board hangs over the DMA chip, I was not sure, if it would still fit after the DMA fix is installed. It does, and this is what's seen on this photo. I managed to install the DMA fix very low, so there's even some small air gap between the top of the DMA chip and the bottom of the ROM board, they don't touch.
The STE is assembled again, and it's now running with the UltraSatan ACSI2SD card device just fine. Previously this combination was very prone to data trashing due to the DMA issue.
#atari#retrocomputing
Public
Charlie Balogh

Toying with the Sidecartridge "TOS Emulator" I bought for my Atari STE. It's a Pi Pico based ROM replacement, that lets you swap among several different ROM images from software. This is great, because old software and demos prefer TOS 1.x, but the desktop is much nicer on newer versions, plus there's EmuTOS to play with. And everything can be managed from just software alone.

We need this - or a similar soft-switch solution - for Amiga 500 & co!

The Sidecartridge TOS Emulator hardware, as sits on the Atari STE mainboard. It plugs into the two ROM sockets, and there's a Pico-based ROM emulator PCB hanging out on the side.
The GEM desktop of TOS 2.06 running from the Sidecartridge "TOS Emulator" on the Atari STE.
EmuTOS 1.3.0 boot screen, running from the Sidecartridge "TOS Emulator" on the Atari STE.
The SWITCHER.TOS application that lets you switch between several ROM images and upload new ones, running on the Atari STE.
#atari#amiga#retrocomputing
Public
MrCopilot

This is a #woot toot.

I grabbed something yesterday and was annoyed by the ui prompting to enter a discount code in 4 separate pre-purchase pages but was never presented with the promo code box.

Emailed the issue, as a heads up.

They refunded far more than the missing discount.

So if you are bummed you cannot get that 8bitDo because of tariffs or feeling nostalgic and wanna get smol with a mini #Atari retro console, consider woot, won't you.

electronics.woot.com/offers/de

Public
Digital Mark λ ☕️ 🕹 🙄

I found the note I left myself from just waking up:

Dreamed I was back in the '80s, writing a Gopher/Markdown-like system on the Atari 8-bit, with the line-oriented editor I wrote on TRS-80, not MEDIT. I was explaining heading levels to someone, and drawing ATASCII banner art for h1, inverse for h2, etc.

This wouldn't be too hard to really do (but really, use MEDIT). Atari DOS is fast enough to load pages on demand.
#dream #atari #retrocomputing #hypertext

ExploreLive feeds
About