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8 years, 9 months ago.
deadmbed
Hi all, My MBED LPC 1768 is completely dead . Like , it's not powering up at all. I am pretty sure I did not overload it with anything, everything was buffered through an opamp. Most of the power supply pins show 0V. It is not getting powered up from the USB. Is there some problem with the board then ? Can I power it up externally ? Can I use to communicate with the PC then ?
Please help me folks !
1 Answer
8 years, 9 months ago.
Hello,
use the schematic:
https://developer.mbed.org/media/uploads/chris/mbed-005.1.pdf
to help you understand how it works and try to track the fault.
-> sheet 2 : power supply circuits (Vin -ext supply )
-> sheet 5: pin Vin is the external supply pin ( 5V ) (you may nee to use a fast act fuse 500mA or a self limited/
stabilised power supply)
good luck