Hi everyone,
Is there anything special about the EMUBOOTCTRL register?
- In the TRM it is not detailed in a table like every other register, instead it is only quickly described on the emulation boot flow diagrams.
- Moreover its location at 0xD00 is said to be part of the PIE Vect Table area which seems odd since it doesn't seem that it is used like an interruption vector.
- Indeed the default linker command file allocates sections for global variables EmuBModeVar, EmuBootPinsVar at its address.
- But these are grouped together with the PIE Vector Table in the PIE_VECT memory (origin = 0xD00, length = 0x200).
- Also the PIE initialization functions from TI skip the first locations (which include 0xD00) when initializing the Vector Table, so that would indicate that it is not, in fact, part of the vect table.
In conclusion: why is it sometimes part of the vector table and sometimes not? If it needs to be handled so differently from the rest then why not describe it with its own memory area in the linker command files so that it doesn't interfere with the vector table?