Hi Alan, Thank you for your inputs.
By following your video instructions I got the bit of info what to look for eventhough the configurations were little bit different for my configuration. And the documentation you have pointed out was very helpful : "To generate a custom rc.sysinit and rcS file a copy of rc.sysinit.template and rcS.template needs to be placed at tools/ and changed according to the desired start-up behaviour. Running tools/mkromfsimg.h creates etc_romfs.c which needs to be copied to arch/board/src and compiled in Makefile" This helped me to finally deploy the rcS script successfully. Thanks and Regards Karukkuvel Raj D Flight Controls Engineer [cid:f1ba9875-7407-4cea-bb0b-31f3e4178aa9] ________________________________ From: Alan C. Assis <acas...@gmail.com> Sent: Monday, May 5, 2025 6:51 PM To: dev@nuttx.apache.org <dev@nuttx.apache.org> Subject: Re: How to enable rcS script in nucleo-stm32h753zi Hi Karukkuvel, There is a 7 years video tutorial here: https://www.youtube.com/watch?v=jYvCe8yQ1OY It is from an old version of NuttX, but could help you to get it working. Also there is an official Documentation here: https://nuttx.apache.org/docs/latest/guides/etcromfs.html#start-up-scripts BR, Alan BR Alan On Mon, May 5, 2025 at 9:12 AM karukkuvel Raj Deivasundaram <karukkuvelraj.deivasunda...@killisbird.com<mailto:karukkuvelraj.deivasunda...@killisbird.com>> wrote: Hi Team Hi all, I'm currently working with the Nucleo-STM32H743ZI board using NuttX and would like to automatically launch a user application at boot using an `rcS` script. I understand that the `NSH` configuration supports initialization scripts through ROMFS. but I'm unsure of the correct steps to fully integrate and enable it on this board. Could anyone guide me on: 1. How to properly include the `romfs_img.c` in the build (e.g., best practices for `Make.defs`). 2. Whether additional board-specific steps are needed for the STM32H7 series to mount and use the ROMFS automatically. 3. How to confirm that the NSH shell is loading and executing the script from `/etc/init.d/rcS`. Any advice or examples from similar STM32 boards would be very helpful. Thanks in advance for your time and support. Regards Karukkuvel Raj D Flight Controls Engineer [cid:ii_196a099f185713a7dd11]
