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von pancio
17. Nov 2021, 10:02
Forum: Hardware
Thema: Atari 130XE- Slot "expansion"
Antworten: 13
Zugriffe: 279

Re: Atari 130XE- Slot "expansion"

Sure, similar RAMEXT was made for A800XL... by Zaxon :-)
RAMEXT for Atari 800XL
RAMEXT for Atari 800XL
von pancio
17. Nov 2021, 09:26
Forum: Hardware
Thema: California Access Drive
Antworten: 15
Zugriffe: 601

Re: California Access Drive

In case, many reasons may occurs. RAM 6116 or Z80 too... Did drive start INIT process? I'm not an expert, but try to check voltage on both linear stabilizer outputs.
von pancio
17. Nov 2021, 08:03
Forum: Hardware
Thema: Atari 130XE- Slot "expansion"
Antworten: 13
Zugriffe: 279

Re: Atari 130XE- Slot "expansion"

Theoretically, using /EXTSEL signal you may switch off internal memory and with external address decoder connect external ram to the CPU bus. You don't need /RAS, /CAS if you will use static ram. Practically, I have one EXTRAM module using CART/ECI build by Zaxon. Works well with my Atari 65XE. sign...
von pancio
16. Nov 2021, 21:39
Forum: Hardware
Thema: VIAtronics v.1.0
Antworten: 29
Zugriffe: 1911

Re: VIAtronics v.1.0

According to someone needs, full pass thru version VIAtronics with vertical PCB was designed. I'm waiting for prototype to confirm it's working too as whole family.
VIAtronics2004.png
viatronics2005.png
cart-eci-passthru.png
It should be ready to test at the end of November.
von pancio
22. Okt 2021, 12:47
Forum: Hardware
Thema: VIAtronics v.1.0
Antworten: 29
Zugriffe: 1911

Re: VIAtronics v.1.0

Hi Guys, A few days ago I prepared little bit another version of Centronics for Atari. It's based on most popular, still available peripheral IC: 8255. It's more cheaper than VIA and very similar, so I propose to use it as alternative. Now I'm during tests. Software depends a few cosmetic changes, l...
von pancio
9. Okt 2021, 18:04
Forum: Hardware
Thema: RAM 512KSRAM extension module for Atari 65/130XE and 800XLF
Antworten: 8
Zugriffe: 555

Re: RAM 512KSRAM extension module for Atari 65/130XE and 800XLF

Hello Olix, Sure, it's possible. I've a few PCBs which I may sell. Today I run one module with 800XL without Freddie (yes, it's possible too - I didn't realize about it) I may summary with a few sentence: - only 320KB is visible at this moment. I checked banks using MEMTEST v1.0. Seems like no 7bit ...
von pancio
8. Okt 2021, 21:22
Forum: Hardware
Thema: RAM 512KSRAM extension module for Atari 65/130XE and 800XLF
Antworten: 8
Zugriffe: 555

Re: RAM 512KSRAM extension module for Atari 65/130XE and 800XLF

SRAM 512K with battery backup for Atari 800 XLF is pretty ready to use... now I'm looking for candidate for upgrade :-)
SRAM 512K for A800XLF
SRAM 512K for A800XLF
von pancio
6. Okt 2021, 19:56
Forum: Hardware
Thema: VIAtronics v.1.0
Antworten: 29
Zugriffe: 1911

Re: VIAtronics v.1.0

It's work! :-)

https://youtu.be/57TVK9HEm9g


VIAtronicsCART
VIAtronicsCART
von pancio
5. Okt 2021, 10:29
Forum: Hardware
Thema: VIAtronics v.1.0
Antworten: 29
Zugriffe: 1911

Re: VIAtronics v.1.0

Hi Guys,

Today I received PCBs for CART version of VIAtronics:
VIAtari CART version PCB
VIAtari CART version PCB
I'll try to assembly it immediately and confirm work as ECI version soon :-) (I hope).
von pancio
29. Sep 2021, 11:01
Forum: Hardware
Thema: ABBUC Hardwarewettbewerb 2021
Antworten: 8
Zugriffe: 847

Re: ABBUC Hardwarewettbewerb 2021

Code: Alles auswählen

https://abbuc.de/forum/viewtopic.php?f=15&t=176
I'm "not authorised to read this forum". Why?
von pancio
25. Sep 2021, 22:17
Forum: Hardware
Thema: VIAtronics v.1.0
Antworten: 29
Zugriffe: 1911

Re: VIAtronics v.1.0

Has anyone footprint (module) for ECI (or CART/ECI) slot for KiCAD? I need it for newest VIAtrocics version with CART/ECI passtrue.
von pancio
18. Sep 2021, 16:16
Forum: Hardware
Thema: RAM 512KSRAM extension module for Atari 65/130XE and 800XLF
Antworten: 8
Zugriffe: 555

Re: RAM 512KSRAM extension module for Atari 65/130XE and 800XLF

I'm not sure... how to upgrade mod to 1MB. As I remember I asked Hias on AtariAge about this but probably GAL22V10 is not capable to have program to handle so big memory. Probably we should change GAL to some small XILINX. I don't know that I can do it. Second reason, this mod everyone which have li...
von pancio
18. Sep 2021, 07:53
Forum: Hardware
Thema: RAM 512KSRAM extension module for Atari 65/130XE and 800XLF
Antworten: 8
Zugriffe: 555

Re: RAM 512KSRAM extension module for Atari 65/130XE and 800XLF

All required pins from PIA are connected internally on board using "piggy" method (PIA must be de soldered and inserted to the memory board). Yes, it use PIA port B and it's Rambo/CompyShop compatible. You need to connect only 3 additional signals: CASINH_IN, CASINH_OUT and MAP_OUT directl...
von pancio
17. Sep 2021, 09:16
Forum: Hardware
Thema: RAM 512KSRAM extension module for Atari 65/130XE and 800XLF
Antworten: 8
Zugriffe: 555

RAM 512KSRAM extension module for Atari 65/130XE and 800XLF

Hi, A few years ago I designed PCB for Atari 65/130XE based on HIAS 512KB SRAM project. Some colleagues asked me about version for Atari 800XL with FREDDIE. Today I added data regarding A800XLF version to article: https://systemembedded.eu/viewtopic.php?f=28&t=40&p=49#p49 It's very easy to a...
von pancio
11. Sep 2021, 17:44
Forum: Hardware
Thema: VIAtronics v.1.0
Antworten: 29
Zugriffe: 1911

Re: VIAtronics v.1.0

Very practical and good design for both kind of edges... As I understand, we need female - female slot in order to connect it to A800XL? Is this PCB available to buy or gerbers to make it own hands?
von pancio
10. Sep 2021, 13:43
Forum: Hardware
Thema: VIAtronics v.1.0
Antworten: 29
Zugriffe: 1911

Re: VIAtronics v.1.0

Hi JAC! You have totally right but... CART version is cheapest, ready to use with all Atari 8 computers and is designed rather for print only (of course is possible to use signals thru DB25 with other stuff than printer). PBI version (with gender charger) will be probably the best option and I plann...
von pancio
10. Sep 2021, 10:23
Forum: Hardware
Thema: VIAtronics v.1.0
Antworten: 29
Zugriffe: 1911

Re: VIAtronics v.1.0

Hello, today I almost finished CART version for XE without ECI and for XL. Differences between CART/ECI version: - lack of signals /IRQ and /RESET - only D5XX addresses might be use. I decided to leave CART slot but probably for XL models it will be little difficult to use it :-) VIAtronicsCART-01.p...
von pancio
8. Sep 2021, 07:04
Forum: Hardware
Thema: VIAtronics v.1.0
Antworten: 29
Zugriffe: 1911

Re: VIAtronics v.1.0

Hallo, isr ja eine interessante Entwicklung, bisher nur alles engl. Mich würde ja weniger der Centronic-Anschluss interessiren (Gib es ja im ABBUC-Shop über SIO) ,sondern eher die Erweiterungsmöglichkeiten über den VIA 6522. Wie kann man den verwenden----- kann man ein ev. vohandenen EPROM ausschal...
von pancio
7. Sep 2021, 09:59
Forum: Hardware
Thema: VIAtronics v.1.0
Antworten: 29
Zugriffe: 1911

Re: VIAtronics v.1.0

Very nice and clean design with good configuration options. I first thought it was a PBI device (which I always wanted to do back then), that contains the driver. Good to see the cartridge port is exported. Thanks for interesting. On the beginning I planned to add ECI port as well but regarding lac...
von pancio
3. Sep 2021, 17:15
Forum: Hardware
Thema: VIAtronics v.1.0
Antworten: 29
Zugriffe: 1911

Re: VIAtronics v.1.0

Actually it's possible to grab video directly by this interface.... thanks for good idea! :-) I'll try to do it!
von pancio
2. Sep 2021, 19:14
Forum: Hardware
Thema: VIAtronics v.1.0
Antworten: 29
Zugriffe: 1911

Re: VIAtronics v.1.0

This one is bi-directional :-)
von pancio
2. Sep 2021, 14:17
Forum: Hardware
Thema: VIAtronics v.1.0
Antworten: 29
Zugriffe: 1911

Re: VIAtronics v.1.0

Hi Mathy,

There is designed as Centronics and for any other user experiments so it should be simplest :-). I've plan to add buffer dedicated only for printers maybe next major release.

Regards,
pancio

-------

Newest version of User Manual:
VIAtronics_manual5.pdf
(3.06 MiB) 38-mal heruntergeladen
von pancio
2. Sep 2021, 07:50
Forum: Hardware
Thema: VIAtronics v.1.0
Antworten: 29
Zugriffe: 1911

Re: VIAtronics v.1.0

No, VIAtronics in complete dummy device. Data to print (e.g. character code, byte for graphics, command code) should be written to PA - in case called data register. PB is using as control register and covering all printer signals e.g. /STROBE or /BUSY. So, during print, Atari sending data to VIAtro...
von pancio
1. Sep 2021, 20:59
Forum: Hardware
Thema: VIAtronics v.1.0
Antworten: 29
Zugriffe: 1911

Re: VIAtronics v.1.0

Good Evening, I did it. First PCB was assembled... viatronics-pcb1.jpg viatronics-pcb2.jpg viatronics-pcb3.jpg ...and I found one issue with ports description: wrongports.jpg it hasn't influence on parallel port and will be corrected with new PCBs order. Well, time to print.... (t.b.c.)
von pancio
31. Aug 2021, 19:22
Forum: Hardware
Thema: VIAtronics v.1.0
Antworten: 29
Zugriffe: 1911

Re: VIAtronics v.1.0

Today I received PCBs... I will assembly first piece today or tomorrow. I hope no issue on that!
VIApcbv10.jpg


Newest version of User Manual:
VIAtronics_manual4.pdf
User Manual
(5.09 MiB) 38-mal heruntergeladen