Building MQX with a non-full DS-5 license can fail with below error:
Error: C9912E: No --cpu selected
Error: L6636E: Pre-processor step failed for .....
The problem is that the linker uses the pre-processor to process the scatter file without specifying what compiler (cpu) to use. This is invoked by the command on the first line of the scatter file:
#! armcc -E
Since only the pre-processor is used, it does not matter what compiler (cpu type) is used. However, the default compiler is not licensed in the limited versions of DS-5 and this causes the error.
To fix the issue, simply add the cpu type to the command line in the scatter file as follows:
#! armcc -E --cpu Cortex-A5.neon
Scatter files (*.scf) in MQX 4.0.x are located at ….\lib\twrvf65gs10_a5.ds5\debug\bsp\
Users with a full DS-5 license will not see this problem since all CPU's are enabled/licensed.