In SX Microcontrollers, SX/B Compiler and SX-Key Tool, Coriolis wrote: You may be able to convice Parallax to sell you the individual components (such as the programmed SX chip) that are used on an SX-Key, so that you can incorporate the SX-Key functionality on the PCB. But this poses its own issues, since the SX-Key uses the OSC1 and OSC2 pins to program the SX, you will need to devise a circuit to switch between the oscillator and the SX-Key (not as simple as it may seem, especially the logic to determine when you need to switch). Even if you purchase individual SX-Keys or SX-Blitzs for each board, you will still have to design this switching function. Have you thought of how you will update the program remotely? This is another big can of worms. To the point, this functionality you seek is an advanced topic and requires considerable design skills. ---------- End of Message ---------- You can view the post on-line at: http://forums.parallax.com/forums/default.aspx?f=7&p=1&m=80735#m80859 Need assistance? Send an email to the Forum Administrator at forumadmin@parallax.com The Parallax Forums are powered by dotNetBB Forums, copyright 2002-2005 (http://www.dotNetBB.com)