no output from PMIC imx8

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no output from PMIC imx8

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nadavah
Contributor I

when i check the NVCC_SNVS_1V8 and the VDD_SNVS_0V8 without the imx8 main i see the voltage

but when i put the main back i see no voltage on the outputs and the imx8 dont power up .

any idea what can go wrong ?

im working with bootmode 10 

JTAG-->1

TEST-->0

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igorpadykov
NXP Employee
NXP Employee

Hi nadavah

 

one can recheck power connections using sect.7.11.1 i.MX8 QM/QXP power distribution block diagram

sect.7.12 VDD_MAIN Routing Guidance (i.MX8 QM), clocks in Table 14 – Oscillator/Crystal  Recommendations

i.MX 8QuadMax/i.MX 8QuadXPlus Hardware Developer’s Guide

Schematic for MCIMX8QM-CPU

 

Best regards
igor

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