----- Original Message ----- From: "hodgejackiehank" <hodgejackiehank@...> To: <lpc2000@yahoogroups.com> Sent: Wednesday, July 14, 2004 7:59 AM Subject: [lpc2000] Re: Crossworks and Ram debug > --- In lpc2000@yahoogroups.com, "g2100g" <g2100g@e...> wrote: > > --- In lpc2000@yahoogroups.com, "hodgejackiehank" > > <hodgejackiehank@y...> wrote: > > > > > > The Olimex stuff works fine, and well built, allthougth the V.regs > > > could do with a bit more heatsinking, I would reccomend using a > > > regulated supply @ about 7V. > > > > Regarding the voltage regulators on the Olimex board, please see my > > message #2737, as well as the messages from Tsvetan (of Olimex) > > referenced there. Are you able to shed any additional light on this > > issue? > > No, I have no latchup problems, or any particular problem with the > board per se. However there is a breadboard area on the card and > obviously it would be convinient if circuitry here could be supplied > from the 3v3 regulator. At the 9VAC max input and max ouptput of the > LM1117 this would be about 6.5W, way over what the regulator could > dissipate. My point was simply that with a bit more heatsink it would > be better. I'd just put an additional regulator on the breadboard area with the input connected to the existing LM1117 input. Leon -- Leon Heller, G1HSM http://www.geocities.com/leon_heller
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Re: [lpc2000] Re: Crossworks and Ram debug
2004-07-14 by Leon Heller
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