I have an easyweb II development board but I don't have the AC adapter. I have a universal adapter, does anyone know what the right polarity is for the board? Is it positive inside negative outside, or positive outside negative inside? I'd really appreciate any help thanks
OLIMEX EASYWEB II polarity
Started by ●October 20, 2006
Reply by ●October 20, 20062006-10-20
In article <1161372563.398935.286530@h48g2000cwc.googlegroups.com>, ddshore@gmail.com writes>I have an easyweb II development board but I don't have the AC adapter. > I have a universal adapter, does anyone know what the right polarity >is for the board? Is it positive inside negative outside, or positive >outside negative inside? I'd really appreciate any help >thanks >Does this look like the tech support page at www.olimex.com ? Why not try their first. I am sure the will tell you. If not come back to me and I will have a look at the circuit diagram. -- \/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\ \/\/\/\/\ Chris Hills Staffs England /\/\/\/\/ /\/\/ chris@phaedsys.org www.phaedsys.org \/\/\ \/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/
Reply by ●October 20, 20062006-10-20
ddshore@gmail.com wrote:> I have an easyweb II development board but I don't have the AC adapter. > I have a universal adapter, does anyone know what the right polarity > is for the board? Is it positive inside negative outside, or positive > outside negative inside? I'd really appreciate any help > thankssee: http://www.olimex.com/dev/images/msp430-easyweb2-sch.gif positive is the pin, negative the sleeve. it also has a diode on the input, very sensible. If you connect it incorrectly, it won't work, and no damage is done. Would be nice if a lot more designers did this, along with a power LED and resistor. That would be asking too much. :-) Cheers Don... -- Don McKenzie E-Mail Contact Page: http://www.dontronics.com/e-mail.html Micro,TTL,USB to 1.5" color LCD http://www.dontronics.com/micro-lcd.html USB,RS232 or TTL to VGA Monitor http://www.dontronics.com/micro-vga.html World's smallest USB 2 TTL Conv http://www.dontronics.com/micro-usb.html
Reply by ●October 20, 20062006-10-20
Don McKenzie wrote:> Would be nice if a lot more designers did this, along with a power LED > and resistor.And a capacitor, so you could run it from an AC-output adapter :-)
Reply by ●October 21, 20062006-10-21
Clifford Heath wrote:> Don McKenzie wrote: > >> Would be nice if a lot more designers did this, along with a power LED >> and resistor. > > > And a capacitor, so you could run it from an AC-output adapter :-):-) and a full wave bridge? Don... -- Don McKenzie E-Mail Contact Page: http://www.dontronics.com/e-mail.html Micro,TTL,USB to 1.5" color LCD http://www.dontronics.com/micro-lcd.html USB,RS232 or TTL to VGA Monitor http://www.dontronics.com/micro-vga.html World's smallest USB 2 TTL Conv http://www.dontronics.com/micro-usb.html
Reply by ●October 21, 20062006-10-21
"Don McKenzie" <look@mysig.com> wrote in message news:4539a8f6$0$2750$afc38c87@news.optusnet.com.au...> Clifford Heath wrote: > > > Don McKenzie wrote: > > > >> Would be nice if a lot more designers did this, along with a power LED > >> and resistor. > > > > > > And a capacitor, so you could run it from an AC-output adapter :-) > > :-) > and a full wave bridge?That's basically how the Atmel ATK500 is layed out. Meindert
Reply by ●October 21, 20062006-10-21
Don McKenzie wrote:> Clifford Heath wrote: >> Don McKenzie wrote: >> >>> Would be nice if a lot more designers did this, along with a >>> power LED and resistor. >> >> And a capacitor, so you could run it from an AC-output adapter :-) > > :-) > and a full wave bridge?Which simply means moving it from the wall-wart to the unit. -- Chuck F (cbfalconer at maineline dot net) Available for consulting/temporary embedded and systems. <http://cbfalconer.home.att.net>
Reply by ●October 21, 20062006-10-21
CBFalconer wrote:> Don McKenzie wrote: > >>Clifford Heath wrote: >> >>>Don McKenzie wrote: >>> >>> >>>>Would be nice if a lot more designers did this, along with a >>>>power LED and resistor. >>> >>>And a capacitor, so you could run it from an AC-output adapter :-) >> >>:-) >>and a full wave bridge? > > > Which simply means moving it from the wall-wart to the unit.OK, and a transformer, and AC power plug. Problem sol-ved. :-) -- Don McKenzie E-Mail Contact Page: http://www.dontronics.com/e-mail.html Micro,TTL,USB to 1.5" color LCD http://www.dontronics.com/micro-lcd.html USB,RS232 or TTL to VGA Monitor http://www.dontronics.com/micro-vga.html World's smallest USB 2 TTL Conv http://www.dontronics.com/micro-usb.html
Reply by ●October 21, 20062006-10-21
Chris Hills wrote:> In article <1161372563.398935.286530@h48g2000cwc.googlegroups.com>, > ddshore@gmail.com writes > >> I have an easyweb II development board but I don't have the AC adapter. >> I have a universal adapter, does anyone know what the right polarity >> is for the board? Is it positive inside negative outside, or positive >> outside negative inside? I'd really appreciate any help >> thanks >> > > Does this look like the tech support page at www.olimex.com ? > Why not try their first. I am sure the will tell you. > If not come back to me and I will have a look at the circuit diagram.Read answer one! -- Don McKenzie E-Mail Contact Page: http://www.dontronics.com/e-mail.html Micro,TTL,USB to 1.5" color LCD http://www.dontronics.com/micro-lcd.html USB,RS232 or TTL to VGA Monitor http://www.dontronics.com/micro-vga.html World's smallest USB 2 TTL Conv http://www.dontronics.com/micro-usb.html
Reply by ●October 22, 20062006-10-22
In article <453a82e6$0$22937$afc38c87@news.optusnet.com.au>, Don McKenzie <look@mysig.com> writes>Chris Hills wrote: > >> In article <1161372563.398935.286530@h48g2000cwc.googlegroups.com>, >>ddshore@gmail.com writes >> >>> I have an easyweb II development board but I don't have the AC >>>adapter. >>> I have a universal adapter, does anyone know what the right polarity >>> is for the board? Is it positive inside negative outside, or positive >>> outside negative inside? I'd really appreciate any help >>> thanks >>> >> Does this look like the tech support page at www.olimex.com ? >> Why not try their first. I am sure the will tell you. >> If not come back to me and I will have a look at the circuit diagram. > >Read answer one!My point is why ask here when the manufacturer has ALL the information freely available on their web site. The answer you referred to includes a like to the full cct diagram on the Olimex web site. So why didn't the op look their first? There was a LONG discussion in this NG recently about people asking questions without bothering to do any obvious or simple research first. The OP was as capable of finding the answer posted here as the person who posted it. Why didn't they do it? Anyone who does not have what it takes to do a search of the manufacturers web site doesn't have the brains to use the kit in the first place. -- \/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\ \/\/\/\/\ Chris Hills Staffs England /\/\/\/\/ /\/\/ chris@phaedsys.org www.phaedsys.org \/\/\ \/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/
