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

Nick.

if you don't get the echo from the SX-Key, there must be something wrong with the cables/conectors between the PC and the Sx-Key. On the SX-Key, the PC's TxD and RxD lines are coupled together in a "tricky" way, i.e. the echo is simply caused by the hardware, and not by the SX20 on the SX-Key. IOW, even when all active components on the SX-Key were "fried", there still should be that echo - if not - check the wires/connectors, and maybe, your COM port (does it work with some other serial device?).

I have no idea why the SX28 on your board is getting that hot - maybe this is a co-incidence of evils hitting you ...

BTW, you should even get that echo, when the SX-Key is not plugged to the SX-Key 4-pin port.

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


You can view the post on-line at:
http://forums.parallax.com/forums/default.aspx?f=7&p=1&m=88023#m88026

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)