topic Re: QWKS-SCM-IMX6DQ schematic clarification in i.MX Processors

QWKS-SCM-IMX6DQ schematic clarification

sunjianxin66 — Wed, 18 Apr 2018 14:47:47 GMT

Dear NXP

I am looking at the QWKS-SCM-IMX6DQ, Quick Start Board for SCM-i.MX 6DQ, and found on Page 7 PMIC Control block. It says

PMIC_VDDOTP
1.5V = PMIC boots from default.
0 = PMIC boots from OTP fuse map.
R42 works with the internal 10k pulldown to provide 1.5V
to PMIC_VDDOTP. R42, R43 & C28 are not needed if
using OTP fuse map.

This is inconsistent with the schematic. Could you please help clarify this? Thank you very much! Schematic and screen shoot attached.

Jianxin

Re: QWKS-SCM-IMX6DQ schematic clarification

Bio_TICFSL — Wed, 25 Apr 2018 13:25:06 GMT

Hi JIANXIN,

You are rigth, however the R42 should be pull up, and the R43 and C28 are not need it if using OTP.

Re: QWKS-SCM-IMX6DQ schematic clarification

sunjianxin66 — Wed, 25 Apr 2018 13:52:07 GMT

Thanks for the reply

Just confirm, are the R42, R43 and C28 mentioned in the green color paragraph should be R47, R48 and C38 in the schematic connection?

Thank you.

Jianxin

Re: QWKS-SCM-IMX6DQ schematic clarification

Bio_TICFSL — Wed, 25 Apr 2018 15:50:31 GMT

Correct!!