Discussion  - 
 
I keep seeing references to the LPC1768 as opposed to the LPC1769 that I know smoothieboard uses. What's the difference? Digikey lists identical specs for both ICs. Will the stock firmware work on the '68?
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100Mhz vs 120Mhz is the only difference. the 68 is older and the first boards used it. newer boards use the 69. the firmware can run on both.
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Was there any noticeable improvement at the higher clock rate?
Also now that you mention it I do notice a subtle 0 changing to a 2 :)
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Not sure there was much of a noticeable change.
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I had smoothieware running on a LPC1768-Mini-DK2 at one point. Smoothie expected LEDs at specific ports, which happened to be the mini-DK2 microSD card, so wasn't a 100% stock Smoothieware image. But it was a very minor tweak.
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Gotcha. I found a good source for genuine LPC1769's so sticking with that. 
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