5 years, 5 months ago.

How yo power supply kl46z

i need to power suply with external source...a 8v battery pack via VIN pin. if i meassure output regulator i have 3.3v.. but the board doesnt start up...somebody what im doing wrong? what need to do? Thnks

Question relating to:

The FRDM-KL46Z is an ultra-low-cost development platform enabled by the Kinetis L series KL4x MCU family built on the ARM® Cortex™-M0+ processor. Features include easy access to MCU I/O, battery-ready, …

1 Answer

5 years, 5 months ago.

I believe if you only power the Vin pin the OpenSDA interface part does not start up (which is used for programming). This means an LED is not enabled, but it should still run. Did you try it with just a blinky program?

Accepted Answer

you are right!!!!! thank you very much... i was waiting to sda led turn on :/ my bad :) :) :) :)

posted by hernan informatica 16 Jan 2015