FreeCalypso > hg > freecalypso-sw

annotate gsm-fw/ccd/README @ 919:1dbc0f0851b3

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
.hgignore: fc-pirhackinit added
author Space Falcon <falcon@ivan.Harhan.ORG>
date Tue, 08 Sep 2015 19:50:23 +0000
parents c36fe9d1da7e
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
649
042735181793 gsm-fw/ccd/README: description of how we are going to tackle this component
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
1 CCD (Condat Coder and Decoder) is yet another component needed in order to
042735181793 gsm-fw/ccd/README: description of how we are going to tackle this component
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
2 produce a functional GSM/GPRS MS (mobile station) firmware image based on the
042735181793 gsm-fw/ccd/README: description of how we are going to tackle this component
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
3 TI/Condat architecture. We got the C source for this component from the
042735181793 gsm-fw/ccd/README: description of how we are going to tackle this component
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
4 LoCosto find.
042735181793 gsm-fw/ccd/README: description of how we are going to tackle this component
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
5
042735181793 gsm-fw/ccd/README: description of how we are going to tackle this component
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
6 CCD code that went into TI's firmware builds (as opposed to TI/Condat's
042735181793 gsm-fw/ccd/README: description of how we are going to tackle this component
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
7 Windows-based tools etc) has two subdivisions:
042735181793 gsm-fw/ccd/README: description of how we are going to tackle this component
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
8
042735181793 gsm-fw/ccd/README: description of how we are going to tackle this component
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
9 1. The main CCD library - ccd_na7_db.lib in the case of our Leonardo reference
042735181793 gsm-fw/ccd/README: description of how we are going to tackle this component
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
10 firmware. The C modules compiled into this library must be very independent,
042735181793 gsm-fw/ccd/README: description of how we are going to tackle this component
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
11 as it's one of the "frozen" GPF libs - it appears that GPF was maintained by
042735181793 gsm-fw/ccd/README: description of how we are going to tackle this component
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
12 a separate group inside TI, and the builders of actual GSM/GPRS firmwares
042735181793 gsm-fw/ccd/README: description of how we are going to tackle this component
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
13 used that group's GPF (and CCD) binary lib deliverables as untouched blobs.
042735181793 gsm-fw/ccd/README: description of how we are going to tackle this component
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
14
042735181793 gsm-fw/ccd/README: description of how we are going to tackle this component
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
15 2. The ccddata component is meant to be compiled as part of the product firmware
042735181793 gsm-fw/ccd/README: description of how we are going to tackle this component
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
16 build process, in both TCS211 and LoCosto versions. Our Leonardo reference
042735181793 gsm-fw/ccd/README: description of how we are going to tackle this component
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
17 version has it in a binary lib too, but it's one of those "unprivileged
042735181793 gsm-fw/ccd/README: description of how we are going to tackle this component
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
18 customer" libs, and one can see from the makefiles that it was meant to be
042735181793 gsm-fw/ccd/README: description of how we are going to tackle this component
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
19 compiled the same way as L1 and L23 etc. The LoCosto version came with the
042735181793 gsm-fw/ccd/README: description of how we are going to tackle this component
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
20 full source for all of CCD, but the build system is set up to only compile
042735181793 gsm-fw/ccd/README: description of how we are going to tackle this component
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
21 ccddata, whereas the rest of CCD is used in the form of an imported GPF
042735181793 gsm-fw/ccd/README: description of how we are going to tackle this component
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
22 binary lib, just like GPF proper, just like in TCS211.
042735181793 gsm-fw/ccd/README: description of how we are going to tackle this component
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
23
042735181793 gsm-fw/ccd/README: description of how we are going to tackle this component
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
24 It appears, however, that the C source for both above-listed parts of CCD has
042735181793 gsm-fw/ccd/README: description of how we are going to tackle this component
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
25 always been maintained in a single directory, and that is how it appears in the
042735181793 gsm-fw/ccd/README: description of how we are going to tackle this component
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
26 LoCosto find.
042735181793 gsm-fw/ccd/README: description of how we are going to tackle this component
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
27
661
c36fe9d1da7e gsm-fw/ccd/README: added paragraph explaining how ccddata depends on cdginc
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 649
diff changeset
28 The true reason for the subdivision became apparent when we went through the
c36fe9d1da7e gsm-fw/ccd/README: added paragraph explaining how ccddata depends on cdginc
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 649
diff changeset
29 process of integrating CCD into FreeCalypso. The C modules that comprise
c36fe9d1da7e gsm-fw/ccd/README: added paragraph explaining how ccddata depends on cdginc
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 649
diff changeset
30 ccddata include cdginc headers (see ../cdg/README to learn what a nightmare
c36fe9d1da7e gsm-fw/ccd/README: added paragraph explaining how ccddata depends on cdginc
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 649
diff changeset
31 that is), require these headers to be present in order to pass compilation, and
c36fe9d1da7e gsm-fw/ccd/README: added paragraph explaining how ccddata depends on cdginc
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 649
diff changeset
32 depend on any changes in these headers, whereas the "base" part of CCD (the one
c36fe9d1da7e gsm-fw/ccd/README: added paragraph explaining how ccddata depends on cdginc
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 649
diff changeset
33 that was maintained as a GPF stable lib inside TI) has no dependency on cdginc.
c36fe9d1da7e gsm-fw/ccd/README: added paragraph explaining how ccddata depends on cdginc
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 649
diff changeset
34
649
042735181793 gsm-fw/ccd/README: description of how we are going to tackle this component
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
35 For our use in FreeCalypso we shall compile all of CCD (both subdivisions) into
042735181793 gsm-fw/ccd/README: description of how we are going to tackle this component
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
36 a single library in this directory - in this project we always compile
042735181793 gsm-fw/ccd/README: description of how we are going to tackle this component
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
37 everything from source anyway, so we may as well simplify the build process in
042735181793 gsm-fw/ccd/README: description of how we are going to tackle this component
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
38 this regard.