AnsweredAssumed Answered

Issue with flashing the program due to reset pin low on KL05Z32

Question asked by Suresh Jaggal on Jan 29, 2016
Latest reply on Jan 31, 2016 by Robin_Shen

Dear Folks,

 

The reset pin is connected to internal pull up according to the that datasheet.

 

The reset pin on my PCB measures 1.5 Volts, but  I am expecting 3.3v  due to which i can not Flash my microcontroller.

 

The reset pin measures 1.5v when connected with a 3k resistor and  2.5v when connected with 1k resistor  (Please find the resistor circuit in the attachment).

 

I can Flash my microcontroller when the reset pin measures 2.5v.

 

Questions

1) Why does the reset pin measure 1.5v when we have 3k resistor.

 

Best regards,

Suresh Jaggal

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