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USBDM_SWD_SER_JS16CWJ and 1.8V target power supply

Question asked by José Rubio on Mar 16, 2015
Latest reply on Jul 13, 2015 by José Rubio

Hello,

 

I'm currently developing a small project with a K10 MCU.

 

I'm supplying the target board where the MCU is located with 1.8V from a buck converter, I'm trying to debug the program with USBDM powering the VDD_BDM pin at JP2 with 1.8V from the target, I thought that with this connection would be enough.

 

No.

 

With "ARM Programmer" I can detect the MCU but when I want to erase the flash, programming and of course, debugging, an error appears.

 

What am I doing wrong?

 

Thank you very much.

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