MSP430 launchpad with Battery

Zack

Hello Everyone,

am using the MSP430G2 Launchpad and as a beginner am trying to let the launchpad get its power from abattery instead of the USB but I really need ur help to do this I do not know where to begin.

Thanks in advance,

over 9 years ago

0 old_cow_yellow over 9 years ago

Guru 58965 points

First, you need to make sure that the jumper marked VCC at J3 is out, and you are not connected to USB.

Next, you need to use 3V batteries and connect to VCC and GND pins at J6.

0 Zack over 9 years ago in reply to old_cow_yellow

Prodigy 80 points

thanks ^-^

that was really helpful

0 Jens-Michael Gross over 9 years ago

Guru 227245 points

Not just the VCC jumper, but any jumper. (unless you have USB disconnected)
Any signal from the FET part will have 3.6V and go into the MSP I/O pins.
So when you use external power, either make it match the voltage of the FET part (2.6V IIRC) by +0 to -0.2V, or you can’t use any of the FET functionality and have to pull all jumpers. (which means: no upload, no application UART, no debugging)
Everything else may damage your MSP, depending on situation.

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MSP430 launchpad with Battery