RT1050 EVKB QSPI Flash XIP Failed (AN12183)

[yi-yuanting]

Hi,

I have both EVKA and EVKB of rt1050.

Our rt1050-based product need to use QSPI flash instead of hyper flash, so we are studying it.

I have followed all step of doc: AN12183, but I got different results below.

[EVKA: QSPI XIP Succeed]

According to AN12183,

(1) I removed the hyper flash and welded 0 ohm resistor from R153 to R158

(2) I updated FW of CMSIS-DAP (for QSPI NOR Flash).

(3) I changed flash setting code according to AN12183SW.zip and use IAR to run debug in XIP mode

The result is successful. System runs in XIP mode.

But when I used EVKB, I got failed result!!

[EVKB: QSPI XIP Failed]

According to AN12183,

(1) I don't need to remove hyper flash. I removed R356,R361~R366 and welded 0 ohm from R153 to R158.

(2) I updated FW of CMSIS-DAP (for QSPI NOR Flash).

(3) I changed flash setting code according to AN12183SW.zip and use IAR to run debug in XIP mode

The result is failed......

(4) SDK version: 2.4.0

We all knew that rt1050-A0 and EVKA were deprecated, so we need your help to solve the QSPI problem in EVKB ! Thanks!

[igorpadykov]

Hi Yi-Yuan

please check differencies between EVKA and EVKB boards and software used for them

i.mx rt1050 DR_SET and DR_CLEAR 

Useful information for RT1050 

How to i.MXRT1051 QSPI Boot w/o XIP (Reside in Flash, Run from TCM) 

Best regards
igor
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[yi-yuanting · Accepted solution]

Hi igor,

We solved this issue 5mins ago.

I must apologize first, the reason is that our hardware engineer add two 0 ohm resister R358 and R359, which are incorrect, so QSPI flash can't run.

After remove R358 and R359, system can run on QSPI now.

Thank you.

[gideonintrater]

Hi Yi-Yuan, have you considered lower-cost Octal devices rather than switching to a Quad and reducing your XiP performance?