Original Emic Connection

NWCCTV

Does anyone by chance have a schematic for connecting the original Emic device (http://media.digikey.com/pdf/Data%20Sheets/Parallax%20PDFs/30006.pdf ) to a Propeller BOE or Demo board? I have it connected to my Stamp HW board and it works fine. However, when I connect to my Prop BOE using the pin out configuration in the spin program it does not work so I obviously am ding something wrong.

Publison

Andy,

Not looked a whole lot into it, but the EMIC is a 5 volt device. I'm sure you have the resistors in line with the Prop pins.

Did you try Inverted and Non-Inverted?

Do you have the code? Are you using FDS.spin?

Duane Degn

This is what is in the comments of one of my emic demo programs.

'Test of Emic text-to-speech module driver'Raymond Allen 2008
'Public Domain


  '1.  Assumes both switches on the module are in the default, ON, position (see manual for details)
  '2.  Note that Emic is a 5V device!  Here's how I interfaced with proto board:
       'Vcc=+5V
       'GND=gnd
       '           +5VDC
       '            ┬ 
       '             2kΩ          'Using a diode to get the voltage at Reset into the proper range 
       'Reset  ────┫
       '            └ Pin7
       '
       '         10kΩ
       'Busy   ───── Pin6     'Using resistor to limit current into Prop
       '
       '         
       'SIN    ─────── Pin5     'From Prop
       '       
       '         10kΩ
       'SOUT   ───── Pin12     'Using resistor to limit current into Prop 
       '         
       '          

I hope the Parallax font show up better once I submit this reply than it looks now.

The demo code I initially found uses a keyboard and TV. I'm pretty sure I have a version to use with a terminal window. I'll try to find it and post it.

Unfortunately neither of my two original Emic devices work so I can't test the code.

Edit: I think I may have changed some of the resistor values from the ones Raymond originally listed (the original values were too low).

Duane Degn

This is the only example I found using a serial terminal. It compiles but I haven't tested it with an Emic. It looks like there is the beginning of code I added to use with a SpeakJet chip but it shouldn't cause a problem.

The code uses an old version of a four port serial object. If you continue to use this code, you might want to switch to Tracy's new four port serial driver.

Genetix

This might help:
http://www.grandideastudio.com/portfolio/emic-text-to-speech-module/

I would suggest contacting Joe directly and seeing if he has any Propeller code.

Found this, but it doesn't say which version board.
http://obex.parallax.com/object/62
http://obex.parallax.com/object/63