Warning: CCS 6.1 (C compiler version 8) Issues
version of CCS has a new C compiler that can cause problems with
existing code, including programs written to support the Real-Time DSP
text. The issue is that the latest version of the TI C
(v8.x) that comes with CCS no longer supports generating COFF object
files (EABI ELF is the only output format with the new
This causes linking errors and therefore the code won’t compile and
run. ELF has some nice features for enhanced debugging, but
not backward compatible with the older, simpler COFF.
We have a
solution identified for our projects, such that they can create and use
ELF object files as needed, and are in the process of implementing
it. For most projects, this will only involve changing just a
couple files in the common code directory. More information will be
posted to this web site shortly. The revised code will also
accompany the upcoming 3rd edition of the text.
interim work-around is to is to go to your project properties and
select an older version of the C compiler that will then allow you to
select COFF as the output format, as shown in the screen shot below.