Subject: Re: [stella] Space Savers|
From: "Edwin Blink" <edwin.blink@xxxxxxx>
Date: Wed, 8 Sep 2004 00:30:06 +0200
Alex Herbert wrote: > The RIOT uses the same reset line as the CPU and is reset at power on, and > to quote the datasheet, "... a low /RES input causes a zeroing of all four > I/O registers. This in trun causes all I/O busses to act as inputs thus > protecting external components from possible damage and erroneous data while > the system is being configured under software control." > > So there shouldn't be any need to initialize the ports at boot unless you > need outputs. When turning power off and on quickly reset may not get low.