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EZP Port issue

Question asked by Anna Palumbo on Sep 21, 2018
Latest reply on Sep 24, 2018 by Jing Pan

Hi,

i am using the micro MK22FN512, and the gpio EZP_CS is put to GND. In this condition on the power on the micro goes in the EZPORT mode. 

I have found a solution to avoid this behaviour -> disable the EZ register on the FOTP (0x40D) using the SPI protocol.

The question is: Can i send the right command sequence

* WRITE_ENABLE CMD

*ERASE THE SECTOR CMD (0x00)

* WAIT THE SE REGISTER IS SET

*WRITE_ENABLE CMD

*PROGRAM ADDRESS CDM (0X40D0

*WAIT THE SE REGISTER IS SET

if the EZP_CS is put to ground during the sequence? Or is it necessary handle it and have a falling edge before send a command?

 

Thank you,

-Anna

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