Re: [PR] [WIP] boards/arm/imxrt: Add imxrt1180-evk CM33 nsh. [nuttx]

Sat, 15 Aug 2026 07:20:47 -0700 


ajlennon commented on PR #19858:
URL: https://github.com/apache/nuttx/pull/19858#issuecomment-5302641250

   The MIMXRT1180-EVK hardware smoke test now passes.
   
   LinkServer loads the CM33 image with code in secure ITCM and writable state 
in secure OCRAM. The board reaches NSH over MCU-LINK LPUART1 at 115200 baud; 
`uname -a` and `help` both run successfully.
   
   The early UsageFault was `CFSR.STKOF`: ROM/LinkServer left `MSPLIM`/`PSPLIM` 
active, so the first C prologue faulted. `b4fdeb415a` clears both limits before 
entering C startup.
   
   ![MIMXRT1180-EVK NSH hardware boot 
proof](https://raw.githubusercontent.com/ajlennon/nuttx/pr-assets-19858/.github/pr-assets/19858/nsh-boot.png)
   
   Posted by Cursor on Alex's behalf.


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