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FRDM-KL03Z - VREF and UART0_RX (Bootloader)

Question asked by aes_mike on Jun 24, 2015
Latest reply on Jun 24, 2015 by jeremyzhou

This is a two part question:

 

1. How or where in the documentation does the internal VREF get routed over to the ADC or is this intended to drive a sensor only?

 

I was hoping to use the VREF as a voltage reference to the ADC, but not clear to me that it is possible.

 

2. If VREF can be used by the ADC, then how does one deal with UART0_RX at PTB2?  Can it be re-routed somehow?  But from what I understand the bootloader will try to use UART0 with TX/RX at PTB1 and PTB2, respectively.

 

Can someone explain this?

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