Getting 1.8V from VDD in high voltage mode

RE: Getting 1.8V from VDD in high voltage mode

Daniel Reisfeld — Thu, 06 Dec 2018 15:14:15 GMT

Thanks Jared

RE: Getting 1.8V from VDD in high voltage mode

Jared — Thu, 06 Dec 2018 14:42:47 GMT

No, but you can use a MOSFET and a GPIO as the control signal.

RE: Getting 1.8V from VDD in high voltage mode

Daniel Reisfeld — Wed, 05 Dec 2018 12:44:11 GMT

Jared,

Apparently I used the wrong USB connector.

I have a follow-up question: according to errata 22, one shouldn't not draw current from VDD pin during power up. Is there any way to ensure this in software?

Thanks,

Daniel

RE: Getting 1.8V from VDD in high voltage mode

Jared — Wed, 05 Dec 2018 12:11:52 GMT

Hi Daniel

The product specification is specific to the IC itself, not the Development kit. The development kit is programmed to use 3 V as default. The REGOUT0 register can be used to configure the output voltage. You can write 0 to the register to change the value to 1.8 V.

More info can be found here

Jared