topic Re: About RT1170 dual-core boot problem: cm7 kernel loading cm4 image to RAM implicit loading method in i.MX Processors

About RT1170 dual-core boot problem: cm7 kernel loading cm4 image to RAM implicit loading method

liuhailong — Mon, 25 Sep 2023 08:03:41 GMT

Hello, @Pavel_Hernandez in my company's project, I have encountered two thorny issues during my recent development work. I hope you can provide some answers instead of just providing a link to the article. Thank you

Consultation on CM7 Core Guidance and CM4 Core Issues (Consultation on Dual Core Launch Issues)

Tool used: MCUXPRESSO

Processor used: RT1170

Reference docu￥ment: AN13264

My requirement is to CM7 core loading CM4 core image to run in RAM. As mentioned in the underlined part of the figure, when the development tool is MCU XPRESSO, load implicitly, similar to initialize some variables in RAM. What initial variables and methods are used? I am basically completely unfamiliar with this method. Can you provide a detailed explanation about this loading method?

2.Is there any specific process and method for porting our company's projects to FREE RTOS in the MCU XPRESSO tool that can be referenced?

Re: About RT1170 dual-core boot problem: cm7 kernel loading cm4 image to RAM implicit loading method

Pavel_Hernandez — Tue, 26 Sep 2023 01:33:25 GMT

Hello, I´m Pavel, and I will be supporting your case, let me get into your case and when I have more information, I will contact you.

Re: About RT1170 dual-core boot problem: cm7 kernel loading cm4 image to RAM implicit loading method

liuhailong — Tue, 26 Sep 2023 02:58:50 GMT

Hello, thank you for your hard work. This is the latest supplement to my question. I introduced my thoughts on this question in detail. I hope my thoughts can be verified and confirmed

Re: About RT1170 dual-core boot problem: cm7 kernel loading cm4 image to RAM implicit loading method

liuhailong — Tue, 26 Sep 2023 05:33:35 GMT

Regarding CM7 core loading CM4 core, can we use the method of displaying loading in KEIL in MCUXPRESSO through fsl_incbin.S assembly file，Compile cm4 image bin file into cm7 image。My analysis is:Keil and MCUXPRESSO are very different ， loading method is not necessarily applicable

Re: About RT1170 dual-core boot problem: cm7 kernel loading cm4 image to RAM implicit loading method

liuhailong — Sat, 07 Oct 2023 14:28:55 GMT

@Pavel_Hernandez Do you have the latest explanations and follow-up on the questions I asked?

Re: About RT1170 dual-core boot problem: cm7 kernel loading cm4 image to RAM implicit loading method

liuhailong — Sat, 07 Oct 2023 14:28:24 GMT

@Pavel_Hernandez Do you have the latest explanations and follow-up on the questions I asked?

Re: About RT1170 dual-core boot problem: cm7 kernel loading cm4 image to RAM implicit loading method

Pavel_Hernandez — Mon, 09 Oct 2023 17:21:54 GMT

Hello, I apologize for the late response, I was researching more information about these questions, and thanks for being clear on the pdf in addition to this I exposed your case to my team to get more details and from here the following questions arise.

What are the requirements for running in RAM? I mean there are some types of RAMs.

Do you know at what address in RAM want to work with?
Could you elaborate further about what you want to achieve with your application?

Best regards,
Pavel