FreeCalypso > hg > freecalypso-tools
annotate doc/DSP-ROM-dump @ 865:57f7db8c4f45
lunadrv: add reset-suspend command
author | Mychaela Falconia <falcon@freecalypso.org> |
---|---|
date | Thu, 24 Mar 2022 06:39:13 +0000 |
parents | 9354a4f83fe8 |
children |
rev | line source |
---|---|
549
9354a4f83fe8
doc/DSP-ROM-dump article written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1 A pair of little ad hoc programs has been been added to FreeCalypso host tools |
9354a4f83fe8
doc/DSP-ROM-dump article written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
2 for the purpose of dumping the Calypso chip's internal DSP mask ROM. These two |
9354a4f83fe8
doc/DSP-ROM-dump article written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
3 programs are the dspdump target utility (see Target-utils) and the fc-dspromdump |
9354a4f83fe8
doc/DSP-ROM-dump article written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
4 front end host tool built in the loadtools suite. This addition is being |
9354a4f83fe8
doc/DSP-ROM-dump article written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
5 documented here for the sake of completeness, but it is not expected that anyone |
9354a4f83fe8
doc/DSP-ROM-dump article written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
6 will ever need to use these DSP ROM dump tools. Instead our fc-dspromdump tool |
9354a4f83fe8
doc/DSP-ROM-dump article written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
7 was written so it could be run exactly 3 times: |
9354a4f83fe8
doc/DSP-ROM-dump article written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
8 |
9354a4f83fe8
doc/DSP-ROM-dump article written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
9 * Our new tool was run once against a common DSP 3606 target to verify that it |
9354a4f83fe8
doc/DSP-ROM-dump article written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
10 produces exactly the same output as the old tool implemented a decade ago by |
9354a4f83fe8
doc/DSP-ROM-dump article written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
11 our political rivals over at OsmocomBB, the dsp-rom-3606-dump.txt output that |
9354a4f83fe8
doc/DSP-ROM-dump article written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
12 has been published on our FTP site since 2017. The test result is yes, our |
9354a4f83fe8
doc/DSP-ROM-dump article written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
13 new tool produces exactly the same dump output when run against the same DSP |
9354a4f83fe8
doc/DSP-ROM-dump article written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
14 ROM version. |
9354a4f83fe8
doc/DSP-ROM-dump article written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
15 |
9354a4f83fe8
doc/DSP-ROM-dump article written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
16 * Our fc-dspromdump tool was then run two more times against less common DSP ROM |
9354a4f83fe8
doc/DSP-ROM-dump article written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
17 versions: it was run on a D-Sample C05 board and an FCDEV3B-751774 board, |
9354a4f83fe8
doc/DSP-ROM-dump article written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
18 producing our newly published dumps of Calypso DSP ROM versions 3311 and 3416, |
9354a4f83fe8
doc/DSP-ROM-dump article written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
19 respectively. |
9354a4f83fe8
doc/DSP-ROM-dump article written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
20 |
9354a4f83fe8
doc/DSP-ROM-dump article written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
21 We have now collected and published all 3 DSP ROM versions that are known to |
9354a4f83fe8
doc/DSP-ROM-dump article written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
22 have been featured in the evolutionary history of our beloved Calypso chip: |
9354a4f83fe8
doc/DSP-ROM-dump article written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
23 3311, 3416 and 3606. Because our target-utils and loadtools frameworks are |
9354a4f83fe8
doc/DSP-ROM-dump article written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
24 quite specific to Calypso and there are no other Calypso DSP ROM versions |
9354a4f83fe8
doc/DSP-ROM-dump article written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
25 besides the 3 which we've already collected and published, it is unlikely that |
9354a4f83fe8
doc/DSP-ROM-dump article written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
26 anyone else will need to run our DSP ROM dump tools as they stand. But if |
9354a4f83fe8
doc/DSP-ROM-dump article written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
27 anyone is interested in exploring some other TI DBB chips that came before or |
9354a4f83fe8
doc/DSP-ROM-dump article written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
28 after Calypso and is prepared to do the necessary work, our DSP ROM dump tools |
9354a4f83fe8
doc/DSP-ROM-dump article written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
29 might have some use as a starting point. |