Hi @nick_j ,
Please help to check, whether you mentioned the following situation:
kerryzhou_0-1652760701682.png
kerryzhou_1-1652760710631.png
In the software component, RT1052 has mflashrt1052, but RT1051 don't have it, right?
From the component name, we can see it is used for the RT1052.
But, if you want to use it, I think you can create the project, then add the related source code driver directly in the project.
Wish it helps you!
Best Regards,
Kerry