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1  Hardware and U-Boot firmware / Hardware / Re: Help building a serial cable for Guruplug on: June 05, 2010, 04:44:33 PM
** BEWARE ** USE THIS INFORMATION AT YOUR OWN RISK **

Looking at the 4-pin connector of my GP standard, from left to right:

1: +3.3V
2: Serial out (from the plug)
3: Serial in (to the plug)
4: GND


I successfully connected to the console by using a MAX3232 level converter, in order to be able to interface to the RS232 port on my computer. I used the reference design found on the datasheet. Serial port configuration is 115200, 8, N,1, no handshake.

HTH

--
J
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