i.MX ProcessorsのトピックRe: IMXRT1176 M4 Core Slow

IMXRT1176 M4 Core Slow

ashok2 — Sat, 11 Feb 2023 07:49:26 GMT

Hi,

We are working on a custom board based on IMXRT 1176 and facing a problem with the performance of the M4 core in the dual core system.

M7 is configured for 800Mhz

Compiler options -O2

Memory address DTCM - 0x20000000

Memset for 1000 bytes takes 3.8us

Memcpy for 1000 bytes takes 3.8us

M4 is configured for 400Mhz

Compiler options -O2

Memory address DTCM - 0x20000000

Memset for 1000 bytes takes 29us

Memcpy for 1000 bytes takes 27us

We have also attached the detailed analysis report.

We would like to know the reason for this slow perfomance on the M4 core ?

Regards,

Ashok

Re: IMXRT1176 M4 Core Slow

Pavel_Hernandez — Wed, 15 Feb 2023 18:51:13 GMT

Hello, I will do a report on that performance, I will not have a response about that because this will involve other departments, thanks for being interested in product NXP.

Best regards,
Pavel

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Re: IMXRT1176 M4 Core Slow

Pavel_Hernandez — Tue, 21 Feb 2023 23:56:17 GMT

Hello, I apologize for the time long being taken, I'm following your case, I'm working on your case, and when I have more information, I will contact you.

Best regards,
Pavel