How to create a minimal BSP:
Use CCS to run example of TMS570LC4357
Used
https://github.com/hangcui1201/ARM_TI_TMS570LC43_SAFETY/tree/master/TMS570LC43x_LaunchPad_Project0
Study differences between HalCoGen BSPS produced for R4 and R5
Adapt CCS project BSP accordingly
Import the TMS570LC4357 BSP adaptations in the existing RTEMS R4 BSP