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lifemidi/README -- The latest revision Dec 16 2012 Evening by karttu. (No functional changes to the version presented at WÄRK:fest 20. - 21.10.2012, just some minor clean-up of comments and indentation of code.) Unless otherwise noted, all Verilog code is Copyright (C) 2005-2012 by Antti Karttunen, and is placed under GNU General Public License version 2. See file COPYING in src directory. (The module syncinp.v is so simple and a standard example from text books that it is probably Public Domain.) This project contains a Verilog-source code and the associated UCF-file to be uploaded into Digilent's Spartan-3 Starter Kit Board with Xilinx Spartan3 XC3S200-FT256 FPGA-chip. See: http://www.digilentinc.com/Products/Detail.cfm?NavPath=2,400,799&Prod=S3BOARD and http://www.digilentinc.com/Data/Products/S3BOARD/S3BOARD_RM.pdf Additional Verilog-modules needed: raminfr.v, timescale.v, uart_defines.v, uart_tfifo.v and uart_transmitter.v from http://opencores.org/project,uart16550 located under this subdirectory: http://opencores.org/websvn,listing?repname=uart16550&path=%2Fuart16550%2Ftrunk%2Frtl%2Fverilog%2F#path_uart16550_trunk_rtl_verilog_ Additional, extra hardware needed: - A 8x8 LED and reed-relay (reed-switch) matrix from an old Mefisto or similar chess computer. Of course you could solder it up by yourself as well. - Self-made optoisolator-board which interfaces 3,3 Volt FPGA-side to 5V side controlling the LED/reed-relay matrix and some other things. - A pulsing rotary-dialer from an old Ericsson (or similar) telephone. (This is for changing the factorial expansion/permutation which the device is currently playing and iterating slowly one step by time forward). - A 16 x 7-segment LED-display from an old Digitel-2000 telephone, from a model which had such a display. See http://www.vads.ac.uk/x-large.php?uid=53658&sos=0 for an example. Of course you could build this from any 7-segment led-displays you happen to have. The decimal points are also used. - A small "side-wing" thru which the above two elements are connected to Spartan-3 Board thru its User B1 Expansion Connector. This side-wing contains also the eight series resistors (etuvastukset) for each of the segments, as well as two pull-up resistors for the pulsing and "in the rest" signals coming from the rotary dialer. - Of course you need also some MIDI sound source box to hear any sounds. - Optionally, an external source for the beat. See e.g. https://github.com/karttu/ArduDinSync/blob/master/ArduDinSync.pde You can see some old photos of the device at: http://ndirty.cute.fi/~karttu/FPGA/esimes/life/HARDWARE_PHOTOS/pelikone.html or http://web.archive.org/web/20100603062827/http://ndirty.cute.fi/~karttu/FPGA/esimes/life/HARDWARE_PHOTOS/pelikone.html However, since then I have added an additional optoisolator to the optoisolator board for the incoming DIN-sync signal, and also added a transistor for the outgoing MIDI-signal. The transistor's emitter is connected to the grounds of both 3,3V and 5V side, so they are not anymore galvanically separated as before. BTW, currently the setup is extremely sensitive to any switching on of the electrical appliances connected to the same extension cord. A photo how the apparatus looks now in 2012 Q4: http://www.flickr.com/photos/ermuggo/8118742971/sizes/k/in/pool-2089172@N20/ See also: http://www.youtube.com/watch?v=JED4cH_cg-o (the sound comes mostly from other devices in that set-up). You can contact me at: <My-firstname>.<My-Surname>@gmail.com, Antti Karttunen, Helsinki, December 16 2012.