FreeCalypso > hg > fc-magnetite

annotate doc/FCDEV3B-751774 @ 639:026c98f757a6

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
tpudrv12.h & targets/gtm900.h: our current support is for MGC2GSMT version only As it turns out, there exist two different Huawei-made hw platforms both bearing the marketing name GTM900-B: one is MG01GSMT, the other is MGC2GSMT. The two are NOT fw-compatible: aside from flash chip differences which should be handled by autodetection, the two hw platforms are already known to have different RFFEs with different control signals, and there may be other differences not yet known. Our current gtm900 build target is for MGC2GSMT only; we do not yet have a specimen of MG01GSMT on hand, hence no support for that version will be possible until and unless someone provides one.
author Mychaela Falconia <falcon@freecalypso.org>
date Thu, 30 Jan 2020 18:19:01 +0000
parents 9f19cc5e46e8
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
622
9f19cc5e46e8 FCDEV3B-751774 experiment documented
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1 We have one experimental FCDEV3B V2 board on which our regular Calypso chip
9f19cc5e46e8 FCDEV3B-751774 experiment documented
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2 ([P]D751992AGHH) has been replaced with D751774AGHH, an earlier F-number
9f19cc5e46e8 FCDEV3B-751774 experiment documented
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
3 featuring DSP ROM version 3416 rather than the final version 3606 which we
9f19cc5e46e8 FCDEV3B-751774 experiment documented
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
4 normally work with. Both chip versions are Calypso C035 variants (ARM7 running
9f19cc5e46e8 FCDEV3B-751774 experiment documented
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
5 at 52 MHz, DSP running at 104 MHz), and both include AMR support - but there
9f19cc5e46e8 FCDEV3B-751774 experiment documented
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
6 must have been some issue with DSP version 34 (and maybe version 35 used in
9f19cc5e46e8 FCDEV3B-751774 experiment documented
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
7 Calypso+) that compelled TI to produce the newer and final version 36 which we
9f19cc5e46e8 FCDEV3B-751774 experiment documented
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
8 are most familiar with.
9f19cc5e46e8 FCDEV3B-751774 experiment documented
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
9
9f19cc5e46e8 FCDEV3B-751774 experiment documented
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
10 Our Layer1 code is based on TI's TCS211-20070608 semi-src release (which we have
9f19cc5e46e8 FCDEV3B-751774 experiment documented
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
11 reconstructed back to full source), and it officially supports only DSP 36.
9f19cc5e46e8 FCDEV3B-751774 experiment documented
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
12 However, our FC Magnetite firmware can also be built for DSP 34 targets (see
9f19cc5e46e8 FCDEV3B-751774 experiment documented
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
13 the Calypso-version-override article), in which case we use a monolithic DSP
9f19cc5e46e8 FCDEV3B-751774 experiment documented
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
14 patch (no L1_DYN_DSP_DWNLD) extracted from the TSM30 source. The patch version
9f19cc5e46e8 FCDEV3B-751774 experiment documented
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
15 is 4130.
9f19cc5e46e8 FCDEV3B-751774 experiment documented
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
16
9f19cc5e46e8 FCDEV3B-751774 experiment documented
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
17 The configure.sh target name for this special modified board is fcdev3b-dsp34
9f19cc5e46e8 FCDEV3B-751774 experiment documented
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
18 instead of just fcdev3b, and the two firmware builds are not interchangeable:
9f19cc5e46e8 FCDEV3B-751774 experiment documented
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
19 the regular fcdev3b build goes into regular FCDEV3B boards, the special
9f19cc5e46e8 FCDEV3B-751774 experiment documented
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
20 fcdev3b-dsp34 build goes into the special FCDEV3B-751774 board. However, when
9f19cc5e46e8 FCDEV3B-751774 experiment documented
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
21 running its respective build this DSP 34 board appears to function just as well
9f19cc5e46e8 FCDEV3B-751774 experiment documented
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
22 as our regular DSP 36 targets: standalone RF tests work, DSP-based audio
9f19cc5e46e8 FCDEV3B-751774 experiment documented
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
23 services (beeps and Melody E1) work, connecting to a live GSM network worked,
9f19cc5e46e8 FCDEV3B-751774 experiment documented
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
24 a few test voice calls worked, all of them connected in AMR mode, voice passed
9f19cc5e46e8 FCDEV3B-751774 experiment documented
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
25 successfully in both directions.
9f19cc5e46e8 FCDEV3B-751774 experiment documented
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
26
9f19cc5e46e8 FCDEV3B-751774 experiment documented
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
27 Going forward, we shall continue using D751992AGHH chips with DSP ROM version
9f19cc5e46e8 FCDEV3B-751774 experiment documented
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
28 3606 as our regular platform, but it is nice to know that the earlier DSP 34
9f19cc5e46e8 FCDEV3B-751774 experiment documented
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
29 apparently works too.