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<p class=MsoNormal><font size=2 face="Times New Roman"><span lang=EN-AU
style='font-size:10.0pt'>Hi People,<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face="Times New Roman"><span lang=EN-AU
style='font-size:10.0pt'><o:p> </o:p></span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=2
face="Times New Roman"><span lang=EN-NZ style='font-size:10.0pt'>I am
redesigning an EtherNut 1.3 daughter board (Quad UARTS, RS485/232/IrDA/Flash RAM,
RTC clock/calendar, etc etc) to work with the newer EtherNut 2.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face="Times New Roman"><span lang=EN-AU
style='font-size:10.0pt'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face="Times New Roman"><span lang=EN-AU
style='font-size:10.0pt'>As I am not sure my previous posting got through, I’d
like to summarise my questions about the EtherNut 2:<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face="Times New Roman"><span lang=EN-AU
style='font-size:10.0pt'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face="Times New Roman"><span lang=EN-AU
style='font-size:10.0pt'>PE6 (INT6) is NOT used and can by used by my own
design.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face="Times New Roman"><span lang=EN-AU
style='font-size:10.0pt'>Only RESET\ and not RESET goes to the expansion header
(any plans to change this???)<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face="Times New Roman"><span lang=EN-AU
style='font-size:10.0pt'>I can use 0xFE00 – 0xFEFF to memory map my own
design (if not, what ranges are available?).<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face="Times New Roman"><span lang=EN-AU
style='font-size:10.0pt'><o:p> </o:p></span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=2
face="Times New Roman"><span lang=EN-NZ style='font-size:10.0pt'>And lastly, the
daughter board can draw at a peak, 5v up to 1.7 amps.<o:p></o:p></span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=2
face="Times New Roman"><span lang=EN-NZ style='font-size:10.0pt'><o:p> </o:p></span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=2
face="Times New Roman"><span lang=EN-NZ style='font-size:10.0pt'>In the past,
the daughter board has a 5v 3A power supply that supplies the 5v to the
EtherNut 1.3 via the expansion header (we remove the 5v regulator from the
EtherNut).<o:p></o:p></span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=2
face="Times New Roman"><span lang=EN-NZ style='font-size:10.0pt'><o:p> </o:p></span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=2
face="Times New Roman"><span lang=EN-NZ style='font-size:10.0pt'>Is it possible
to upgrade the LM1086(1.5A) to a LM1085 (3A) or a LM1084(5A)?<o:p></o:p></span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=2
face="Times New Roman"><span lang=EN-NZ style='font-size:10.0pt'><o:p> </o:p></span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=2
face="Times New Roman"><span lang=EN-NZ style='font-size:10.0pt'>What else
would need to change (F1 to 3A or 5A)?<o:p></o:p></span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=2
face="Times New Roman"><span lang=EN-NZ style='font-size:10.0pt'><o:p> </o:p></span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=2
face="Times New Roman"><span lang=EN-NZ style='font-size:10.0pt'>Would this
work with the current board design (track width, vias etc)?<o:p></o:p></span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=2
face="Times New Roman"><span lang=EN-NZ style='font-size:10.0pt'><o:p> </o:p></span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=2
face="Times New Roman"><span lang=EN-NZ style='font-size:10.0pt'>I guess this
will become more of an issue as more and more daughter / expansion boards are
developed!<o:p></o:p></span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=2
face="Times New Roman"><span lang=EN-NZ style='font-size:10.0pt'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face="Times New Roman"><span lang=EN-NZ
style='font-size:10.0pt'>The other alternative is to put a LM1084 on the
daughter board, and removing the LM1086 from the EtherNut, which would not be
my preference.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face="Times New Roman"><span lang=EN-NZ
style='font-size:10.0pt'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face="Times New Roman"><span lang=EN-NZ
style='font-size:10.0pt'>Cheers Douglas</span></font><font size=2><span
lang=EN-AU style='font-size:10.0pt'><o:p></o:p></span></font></p>
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