Tape Sim

Exidy Sorcerer Hardware related discussion
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ClausB
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Joined: Tue Jul 23, 2024 9:44 pm

Tape Sim

Post by ClausB »

A few years ago I made a Sorcerer tape simulator from an Arduino:

https://forum.pjrc.com/index.php?thread ... rer.55633/
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ClausB
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Re: Tape Sim

Post by ClausB »

Too bad Teensy 3.5 is no longer available and Teensy 4 is not tolerant of Sorcerer's 5V signals. Another 5V Arduino with SD card shield should do the job. The first version of Tape Sim was on an Arduino Mega:

https://forum.vcfed.org/index.php?threa ... ost-608054
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jltursan
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Re: Tape Sim

Post by jltursan »

Hi Claus!,

Yep, i remember it, it's a cool device despite the damn teensys. Why they're so expensive?.

Now there're nice alternatives much powerful than the 3.5, something like the RP2040 based dev boards.
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ClausB
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Re: Tape Sim

Post by ClausB »

Thanks!

It's debatable whether RP2040 is 5V tolerant. Anyway the Tape Sim is not a demanding application, so the older 5V Arduino boards (with a 2nd serial port) can handle it.
Abzman
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Re: Tape Sim

Post by Abzman »

I've got it working, it would be nice to port it though
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ClausB
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Re: Tape Sim

Post by ClausB »

Am porting this now to the 5V Arduino Micro. The FrequencyTimer2 lib doesn't support that board so I switched to the FrequencyGenerator lib, modified to output on pin 10. Successfully loaded TRMLD into the Sorcerer.

Got a SparkFun microSD board coming soon, so will try to integrate that next.
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ClausB
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Re: Tape Sim

Post by ClausB »

Ported!

Got spoiled by the Teensy's vast resources. Had to rewrite a lot to fit within the Micro's 2.5K RAM.
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ClausB
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Re: Tape Sim

Post by ClausB »

Now also ported to SparkFun Pro Micro 5V 16 MHz, attached to SparkFun Level Shifting microSD board.

https://www.sparkfun.com/pro-micro-5v-16mhz.html

https://www.sparkfun.com/sparkfun-level ... akout.html
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