A few weeks ago I purchased a P2 Edge card equipped with the new Parallax Propeller-2 microcontroller. To practice and familiarize myself with the new features, I ported the emulator for the TMS9918A chip from Texas Instruments that I made for the Propeller-1.
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There are several implementations of the famous TZXDuino / CASDuino audio cassette emulator for Sinclair and MSX computers, some require dedicated “shields”, others require considerable use of breadboards and flying wires, more or less simple to make. The one I propose today uses two easily available and inexpensive shields and some external components necessary for connection with the computer. Only a minimum of familiarity with the soldering iron is needed to make the few required connections.
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