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imxrt1062 u-boot not running issue

Question asked by Thomas Youn on Oct 23, 2019
Latest reply on Nov 7, 2019 by Thomas Youn

Hi~ all.

First of all, I'm a hardware engineer.

I am currently using IMXRT1062CVJ5A(New Board).

 

I uploaded a U-boot image to IS25WP128(NOR Flash) using FlexSPI(QSPI),

But IS2s16160(SDRAM) does not work and Flash does not work...

(Waveform measurement with : oscilloscope : Clock, CE, etc....)

 

By the way, the system clock of MCU(Imxrt1062) is normal operating at 24MHz...(used oscilloscop)...

 

Flash IC seems to be a problem, I remove the Falsh chip with the U-boot and soldered it to 1060EVB.

=> Normal operaion !!

 

In a New borad(IMXRT1062CVJ5A), voltage level and clock are all normal.

 

 

What more should I debug?

 

(The difference from the 1060 EVB reference circuit is that the part of the free link is removed.)

Thank you..

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