I might not have been clear in my question. I'm not looking to write python or other scripts for exercising the TPU. I'm hoping to write C/C++ code on the platform.
All of the Coral documentation only addresses the Python interface.
When I try to find tools for the i.MX8M platform on the NXP site, I find lots of things including tools for compiling on the Cortex-M platform and documentation for rebuilding the Linux kernel, but not for compiling C/C++ programs targeting the A53 cores.
Under the category "IDE - Debug, Compile, and Build Tools" there are only patches and tools for the GPU. It is in this category that I would expect to find tools for compiling C programs on the A53.
Roger