ARM Technical Support Knowledge Articles

POWER SUPPLY PROBLEM ON MCB900 V4

Applies to: MCB900 Evaluation Board

Answer


Information in this article applies to:


QUESTION

I have a problem with the power supply on MCB900. The ADC generates wrong results because the voltage regulator appears to be oscillating. How can I solve that issue?

ANSWER

There was a problem on early versions of the MCB900 V4 Board. The capacitor C10 should be a 10uF Tantalum (+ polarity on label www.keil.com/MCB900). If you change C10, the board will work fine.

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Article last edited on: 2006-11-18 08:26:30

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