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Sleepy

Member Since 18 Feb 2008
OFFLINE Last Active Today, 3:22 PM

Topics I've Started

Auto-Term for ATR8000

Wed May 2, 2012 12:40 AM

Hi,

I´m looking for a disk with a program called "Auto-Term". It is necessary to run an ATR8000 in CP/M-mode.

Does anybody have an ATR or knew where I can get it?

Thanx, Sleepy

ABBUC hardeware-contest

Wed Oct 5, 2011 3:57 PM

Hi,

here´s the english version of the description found in the ABBUC-magazin 106.
While my english is not very good, I hope I didn´t make too many mistakes and you understand the description well.

Thanx Phil for the suggestion to translate the text into english. :-)

Marc „Sleeπ“ Brings



Hardware contest 2011

This year, in the category „hardware“, there are four contributions. Two ones in category „final“ and two ones in category „in prorgress“.

The „final“ products are:
  • Freezer 2011
  • USB 2 SIO
In „progress“ are the following products:
  • 65C816 Board for XL / XE
  • IIC-bus-adapter with realtime-clock for the joystickport




Hereafter a short description of each development.


Category „final“

1) Turbo Freezer XL/XE 2011

The Turbo Freezer is a versatillity extension for the PBI respectively ECI of the Atari XL/XE computer. Strictly speaking, the Turbo Freezer combined four different extensions in one:

- Freezer (freeze a running programm, save or load the snapshopt, integrated debugger & DOS)
- Oldrunner mode
- Cartridge emulation
- Battery-backed 512k RamDisk

All functions could be used independent from each other and can be (dis-)abled by switches.

In comparison to the Turbo Freezer 2005, there are a lot of improvements:
Completely new designed hardware and logic, the cartridge-emulation´s menu and the flasher-software are new from the scratch.

The Turbo Freezer´s core is the Xilinx XC95144XL CPLD with 144 macro cells, 1MB flash and 1MB battery-backed RAM (for comparison: the Turbo Freezer 2005 used 512k flash, 128k RAM and a CPLD with 64 macro cells).

The hardware now is protected by a case, the switches are comfortably accessible from the front.

Instead of two different versions for XL and XE, the Freezer now comes along with an interchangeable adapter pcb, wich also can be purchased alone. This means you need only one Freezer for XL and XE, and a matching adapter for your system. The Freezer himself fits to both adapters (PBI & ECI). An adapter pcb for internal use is in progress.

Both adapter-pcb offers a loop through-PBI, the XE-adapter offers an additional cartridge-port. PBI-devices can be used parallel with the Freezer.

With the "Stereo Pokey" mode-switch you can force the Freezer to save the state of the second pokey if a stereo-upgrade is installed and you take a snapshot.

A crash of the Freezer freezing a few programms (eg Galaxian) are prevented by a new logic. The debugger now has full PORTB-control; this enables easy access to RamDisks and OS/BASIC. Also new: the report-function - all debugger-outputs can be send to a printer.

Thanks to the battery-backing the snapshots in Freezer´s RAM doesn´t get lost with power down the system.

For cartridge-emulation up to 960k flash and 384k battery-backed RAM are available. 8k, 16k and OSS-cartridges can be emulated. Current versions of SDX (up to 512k) are also supported - you can emulate SDX with a hooked-on Action! or MAC/65 cart.

Also new is an AtariMax-compatible 8k mode and an 8k mode with optional 8k RAM bank at $8000 - future cartridge-software can use up to 384k.

The integrated 512k RamDisk is 100% compatibele to the popular PORTB/$D301 standard and uses Bits 2,3,5,6,7 for bank-selecting.

by Matthias Reichl / Wolfram Fischer


2) USB 2 SIO

This is a small pcb which enables the direct connection between the ATARI and PC/Mac with USB. It relaced the combination of a sio2pc with seperated RS232-USB-Dongle. The pcb is designed to fit into a SIO-jack. You can choose with a solder strap between „RI“ and „CTS“ mode. Connected to the PC/Mac by an affixed cable with USB A-jack, the device is powered by the USB-port.

by Wolfram Fischer


Category „in progress“

1) 65C816 bord for all XL/XE

This project speeds up the ATARI up to 7MHz using a 6502-compatible 16Bit-CPU, this means increasing the operating speed up to 400%. It´s a further development based on Bob Wooley´s 65C816 upgrade for the 1200XL, as seen at the hardware contest in 2008.

As against Bob´s version this set-up works with all XL/XE. PBI could be used with normal speed.

BASIC & OS are now found on the set-up and available with full speed immediately after power up. Copying BASIC & OS into the extension´s RAM as before are not longer required.

Following issues are in progress:

- choose between the original Atari 6502C-CPU and 65C816. Booting the computer is necessary.
- Using RAM direct by the CPU with full speed, boosting RAM up to 4MB (or more). RAM could be acessed without bank-switching.
- Guus is exploring if speeding up the clock to 14MHz is possible; this would mean a acceleration of 800%.

Guus shows a working prototype at the annual meeting.

by Guus Assmann

2) IIC-Adapter

The II2C-adapter enables to connect a circuit/chip using the II2C or TWI-bus for communication to the ATARI´s joystickport. Proper software provided, you can connect a realtime-clock, an eeprom, an adc/dac or something similar to your ATARI. The usage as dongle would be also possible. ;-)

Guus shows a working prototype with rtc at the annual meeting.

by Guus Assmann


Closing date for postal vote is the 26th of october 2011 (remind delivery time from your country!), submit it at the annual meeting, or scan & send it via email to wolfgang or me.