[En-Nut-Discussion] problem in running httpd sample on Ethernut board Revision 1.3 H

Harald Kipp harald.kipp at egnite.de
Fri May 22 12:42:04 CEST 2009

Prasad.Nagapati at infineon.com wrote:

> It is working now, problem was in the power supply, it was not able to
> give 200mA output.

Actually the board draws less than 100mA. Another 20mA are used by the
SP Duo programmer.

The problem with many low cost power supplies is, that they claim to
deliver 200mA at 9V, for example. In fact the voltage drops below 7V at
100mA+ or the 50/60 Hz ripple becomes too high.

Using a 12V supply for Ethernut 1 is a good choice.


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