In SX Microcontrollers, SX/B Compiler and SX-Key Tool, bean wrote:

[quote="Forrest"]
How many pins are you using for the video and how many for audio? 4-bit audio should be ok[/quote]The SRAM require 26 pins, the video output uses 6 pins, the audio is 1 pin (but it's a timer output so you can use high speed PWM to make different volume levels).
 

I figured out how to do it with 2 resistors by using the different threshold levels to detect which of the two mutually exclusive switches are closed.

 

I've almost got the layout done. I will make a prototype on my LPKF, then get some boards made. 

I only expect to make about 20 kits. If response if good, I may make a SMT populated board.

 

Bean.

---------- End of Message ----------


You can view the post on-line at:
http://forums.parallax.com/forums/default.aspx?f=7&p=1&m=143039#m143307

Need assistance? Send an email to the Forum Administrator at forumadmin@parallax.com

The Parallax Forums are powered by dotNetBB Forums, copyright 2002-2006 (http://www.dotNetBB.com)