LPCxpreeso boards different

[lpcware]

Content originally posted in LPCWare by LynnF on Sun Mar 07 09:14:56 MST 2010
I have 2 LPCXpresso boards and I have noticed that they are not the same. On one there are components located at L1 & L2 just to the right of the processor on the "Link" board and on the other they are missing....what gives?

[lpcware]

Content originally posted in LPCWare by NXP_Europe on Tue Mar 09 08:08:27 MST 2010
Hi All,
These coils are mainly needed if powering the LPC315x from a battery, since the LPClink runs through USB these coils are not needed.

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Quote: LynnF
Interesting...they must have thought they were needed at sometime before...or are they now being added? I can tell you which of the boards was mude first. Cost saving by NXP or oops?

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The ones with coils were produced first. Since they are not needed, they are removed.

Kind regards,

[lpcware]

Content originally posted in LPCWare by LynnF on Mon Mar 08 07:21:42 MST 2010
Interesting...they must have thought they were needed at sometime before...or are they now being added? I can tell you which of the boards was mude first. Cost saving by NXP or oops?

[lpcware]

Content originally posted in LPCWare by bladerunner on Mon Mar 08 06:26:59 MST 2010
Those parts on my LPC1114 board are also missing. I've looked at the datasheet for the LPC-Link micro LPC3154 - it has internal voltage regulators, both linear and switch-mode. As long as you power the LPC-Link debugger section off the USB port it will be fine as it uses the linear regulators in that mode ( the inductors are not needed). IIRC the current limit is about 80 mA (sourced from pin). Regards :)

[lpcware]

Content originally posted in LPCWare by rmteo on Sun Mar 07 09:31:51 MST 2010
Mine doesn't have those inductors too.  Works fine though.

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