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2161738_en-US

2161738_en-US

S32G: QSPI dummy command inquiry

Hi experts,

Platform: S32G

Module: QSPI

In the S32G RM, there is a desription as below. It seems that the dummy command should be sent twice.

Snipaste_2025-09-02_11-21-19.jpg

However, in QSPI reconfiguration bin file we provided, there is only one dummy command . In Fls RTD example, there is also only one dummy command.

Snipaste_2025-09-02_11-27-16.jpg

image (2).png

Do we need to strictly follow our RM to send the dummy command twice? It seems no impact about sending the dummy command only once, since no customer report any issues about it.

Thanks for your professional comments in advanced.

Best Regards,

Leo

RTDRe: S32G: QSPI dummy command inquiry

Hi @LeoLiAP ,

As RM mentioned, QuadSPI controller need to set 2 dummy instructions: 2 and N - 2 cycles for latency. But SW team didn't see  any problem when they just used one instruction to communicate with the external memory. From my point of view, you can put this question to HW team to know more detail about it's impact.

Best regards,

Nhi


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Last update:
‎11-20-2025 01:50 PM
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