FreeCalypso > hg > fc-magnetite
annotate doc/Voice-pseudo-modem @ 639:026c98f757a6
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 | 2f880890c189 |
children |
rev | line source |
---|---|
376
3f1a587b3a84
doc/Voice-pseudo-modem written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1 Back when TI's TCS211 fw existed in the traditional world of phone handset and |
3f1a587b3a84
doc/Voice-pseudo-modem written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
2 cellular modem manufacturers, there were only two principal classes of target |
3f1a587b3a84
doc/Voice-pseudo-modem written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
3 devices for it: handsets and modems. The former have local UI hardware (LCDs |
3f1a587b3a84
doc/Voice-pseudo-modem written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
4 and keypads) and run firmware that works with this UI hw, the latter have no |
3f1a587b3a84
doc/Voice-pseudo-modem written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
5 such hw and run firmware that expects to be controlled by an external host via |
3f1a587b3a84
doc/Voice-pseudo-modem written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
6 AT commands. |
3f1a587b3a84
doc/Voice-pseudo-modem written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
7 |
3f1a587b3a84
doc/Voice-pseudo-modem written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
8 But the peculiar circumstances under which our FreeCalypso family of projects |
3f1a587b3a84
doc/Voice-pseudo-modem written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
9 operates give rise to a third possibility: what happens if one were to run |
3f1a587b3a84
doc/Voice-pseudo-modem written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
10 non-UI-capable firmware that expects control via AT commands on a hardware |
3f1a587b3a84
doc/Voice-pseudo-modem written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
11 target device that was originally designed to be an end user phone handset, in |
3f1a587b3a84
doc/Voice-pseudo-modem written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
12 our case either Motorola C1xx or Pirelli DP-L10? The result is what I call a |
3f1a587b3a84
doc/Voice-pseudo-modem written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
13 voice pseudo-modem (VPM): the phone's LCD stays dark, the buttons do nothing |
3f1a587b3a84
doc/Voice-pseudo-modem written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
14 and the device expects to be controlled via AT commands as if it were a modem |
3f1a587b3a84
doc/Voice-pseudo-modem written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
15 like the one in GTA01/02 smartphones, but there is no practically usable way to |
3f1a587b3a84
doc/Voice-pseudo-modem written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
16 make use of any data services, only voice and SMS, hence my VPM term. |
3f1a587b3a84
doc/Voice-pseudo-modem written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
17 |
3f1a587b3a84
doc/Voice-pseudo-modem written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
18 It needs to be noted clearly that the VPM hack described in this article is NOT |
3f1a587b3a84
doc/Voice-pseudo-modem written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
19 a substitute for proper modem hardware - if your area of interest is Standard |
3f1a587b3a84
doc/Voice-pseudo-modem written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
20 Modem functionality (the full set of GSM and GPRS services accessed via AT |
3f1a587b3a84
doc/Voice-pseudo-modem written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
21 commands), then you need a proper hardware platform for it, such as our FCDEV3B |
3f1a587b3a84
doc/Voice-pseudo-modem written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
22 hardware product. However, support for VPM operation in FreeCalypso exists for |
3f1a587b3a84
doc/Voice-pseudo-modem written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
23 the following purposes: |
3f1a587b3a84
doc/Voice-pseudo-modem written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
24 |
3f1a587b3a84
doc/Voice-pseudo-modem written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
25 * On some hw targets the VPM configuration can be an intermediate stepping stone |
382
7bdd370f6f59
doc/Voice-pseudo-modem: minor fixes
Mychaela Falconia <falcon@freecalypso.org>
parents:
376
diff
changeset
|
26 toward potential future UI-enabled firmware (see the Handset-goal article) - |
7bdd370f6f59
doc/Voice-pseudo-modem: minor fixes
Mychaela Falconia <falcon@freecalypso.org>
parents:
376
diff
changeset
|
27 this situation holds on the C139. |
376
3f1a587b3a84
doc/Voice-pseudo-modem written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
28 |
3f1a587b3a84
doc/Voice-pseudo-modem written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
29 * Being able to run FreeCalypso fw in the VPM configuration on Mot C1xx hw that |
3f1a587b3a84
doc/Voice-pseudo-modem written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
30 many people already have and that may still be readily and cheaply available |
3f1a587b3a84
doc/Voice-pseudo-modem written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
31 makes our firmware accessible to those who are not able to afford our |
3f1a587b3a84
doc/Voice-pseudo-modem written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
32 expensive FCDEV3B hardware. |
3f1a587b3a84
doc/Voice-pseudo-modem written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
33 |
3f1a587b3a84
doc/Voice-pseudo-modem written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
34 * If you have a Pirelli DP-L10 phone (now very rare and hard to get, but were |
3f1a587b3a84
doc/Voice-pseudo-modem written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
35 readily available in early 2013 when I started FreeCalypso): while there is |
3f1a587b3a84
doc/Voice-pseudo-modem written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
36 unfortunately very little chance of being able to turn it into a practically |
3f1a587b3a84
doc/Voice-pseudo-modem written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
37 usable Libre Dumbphone with FreeCalypso (the unwanted extra chips sans docs |
3f1a587b3a84
doc/Voice-pseudo-modem written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
38 which we don't know how to power down are a killer), running FreeCalypso fw |
3f1a587b3a84
doc/Voice-pseudo-modem written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
39 on the Pirelli in the VPM configuration is so easy and convenient that I do |
3f1a587b3a84
doc/Voice-pseudo-modem written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
40 it all the time during development and testing. |
3f1a587b3a84
doc/Voice-pseudo-modem written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
41 |
3f1a587b3a84
doc/Voice-pseudo-modem written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
42 Building firmware for VPM operation |
3f1a587b3a84
doc/Voice-pseudo-modem written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
43 =================================== |
3f1a587b3a84
doc/Voice-pseudo-modem written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
44 |
3f1a587b3a84
doc/Voice-pseudo-modem written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
45 The following two firmware build configurations (in the ./configure.sh sense) |
3f1a587b3a84
doc/Voice-pseudo-modem written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
46 are appropriate for VPM usage: |
3f1a587b3a84
doc/Voice-pseudo-modem written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
47 |
3f1a587b3a84
doc/Voice-pseudo-modem written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
48 hybrid-vpm This is the TCS2/TCS3 hybrid config (see the Modem-configs |
3f1a587b3a84
doc/Voice-pseudo-modem written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
49 article) that has all data services (CSD, fax and GPRS) |
3f1a587b3a84
doc/Voice-pseudo-modem written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
50 disabled and FCHG (new FreeCalypso battery charging driver) |
3f1a587b3a84
doc/Voice-pseudo-modem written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
51 enabled. The removal of data services code makes the firmware |
3f1a587b3a84
doc/Voice-pseudo-modem written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
52 image size and its RAM usage significantly smaller than all |
3f1a587b3a84
doc/Voice-pseudo-modem written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
53 other configurations, making hybrid-vpm the smallest of all |
3f1a587b3a84
doc/Voice-pseudo-modem written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
54 FC Magnetite firmware configs. |
3f1a587b3a84
doc/Voice-pseudo-modem written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
55 |
3f1a587b3a84
doc/Voice-pseudo-modem written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
56 l1reconst-chg This is a variant of the stable l1reconst config (again, see |
3f1a587b3a84
doc/Voice-pseudo-modem written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
57 the Modem-configs article) that has our FCHG battery charging |
3f1a587b3a84
doc/Voice-pseudo-modem written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
58 driver enabled. Because this config uses the TCS211 blob |
3f1a587b3a84
doc/Voice-pseudo-modem written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
59 version of the G23M PS, data services cannot be disabled, and |
3f1a587b3a84
doc/Voice-pseudo-modem written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
60 the associated code sits in the firmware image as dead weight. |
3f1a587b3a84
doc/Voice-pseudo-modem written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
61 Thus this l1reconst-chg config produces much heavier fw images |
3f1a587b3a84
doc/Voice-pseudo-modem written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
62 than hybrid-vpm, and should only be used when you suspect a bug |
3f1a587b3a84
doc/Voice-pseudo-modem written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
63 in the new TCS3 G23M or ACI code and would like to run the old |
3f1a587b3a84
doc/Voice-pseudo-modem written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
64 TCS2 version for comparison. |
3f1a587b3a84
doc/Voice-pseudo-modem written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
65 |
545
2f880890c189
doc/Voice-pseudo-modem: minor update for C155 support
Mychaela Falconia <falcon@freecalypso.org>
parents:
509
diff
changeset
|
66 Mot C139/140 and C155/156 phones have enough flash and RAM to run the |
2f880890c189
doc/Voice-pseudo-modem: minor update for C155 support
Mychaela Falconia <falcon@freecalypso.org>
parents:
509
diff
changeset
|
67 l1reconst-chg config (with data services code as non-exercisable dead weight), |
2f880890c189
doc/Voice-pseudo-modem: minor update for C155 support
Mychaela Falconia <falcon@freecalypso.org>
parents:
509
diff
changeset
|
68 but the more basic C11x/12x models (the ones with black&white LCDs) have |
2f880890c189
doc/Voice-pseudo-modem: minor update for C155 support
Mychaela Falconia <falcon@freecalypso.org>
parents:
509
diff
changeset
|
69 smaller memories, and the only FC Magnetite config that is small enough to fit |
2f880890c189
doc/Voice-pseudo-modem: minor update for C155 support
Mychaela Falconia <falcon@freecalypso.org>
parents:
509
diff
changeset
|
70 into their tiny flash and XRAM capacity is hybrid-vpm. |
376
3f1a587b3a84
doc/Voice-pseudo-modem written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
71 |
3f1a587b3a84
doc/Voice-pseudo-modem written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
72 Playing with FreeCalypso VPM on C1xx phones |
3f1a587b3a84
doc/Voice-pseudo-modem written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
73 =========================================== |
3f1a587b3a84
doc/Voice-pseudo-modem written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
74 |
382
7bdd370f6f59
doc/Voice-pseudo-modem: minor fixes
Mychaela Falconia <falcon@freecalypso.org>
parents:
376
diff
changeset
|
75 If a Mot C1xx phone is flashed with a FreeCalypso firmware image in the VPM |
383
43dbedde9d80
doc/C1xx-Howto written
Mychaela Falconia <falcon@freecalypso.org>
parents:
382
diff
changeset
|
76 configuration (see C1xx-Howto for the messy details of how to do it), it will |
376
3f1a587b3a84
doc/Voice-pseudo-modem written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
77 behave as follows: |
3f1a587b3a84
doc/Voice-pseudo-modem written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
78 |
3f1a587b3a84
doc/Voice-pseudo-modem written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
79 * The LCD will remain dark and the buttons will do nothing no matter what. |
3f1a587b3a84
doc/Voice-pseudo-modem written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
80 |
3f1a587b3a84
doc/Voice-pseudo-modem written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
81 * If you plug in Motorola's charging adapter (it's a regulated 5 VDC power |
3f1a587b3a84
doc/Voice-pseudo-modem written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
82 source, but with a non-USB connector) and you had properly installed the |
3f1a587b3a84
doc/Voice-pseudo-modem written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
83 charging config file when creating the aftermarket FFS for FreeCalypso, the |
3f1a587b3a84
doc/Voice-pseudo-modem written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
84 battery will charge. When you unplug the charging adapter, if there is no |
3f1a587b3a84
doc/Voice-pseudo-modem written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
85 host computer running FC host program rvinterf connected to the phone |
509
3992869d41ad
doc/Voice-pseudo-modem: shortened keepalive timeout
Mychaela Falconia <falcon@freecalypso.org>
parents:
383
diff
changeset
|
86 serially, the phone will power off some 15 to 20 s after the charger unplug. |
376
3f1a587b3a84
doc/Voice-pseudo-modem written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
87 |
3f1a587b3a84
doc/Voice-pseudo-modem written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
88 * If you press the power button while the phone is off, even momentarily, the |
3f1a587b3a84
doc/Voice-pseudo-modem written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
89 phone will power on and boot (with nothing on the LCD as usual), but if the |
3f1a587b3a84
doc/Voice-pseudo-modem written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
90 headset jack serial port is not connected to a computer running rvinterf, the |
509
3992869d41ad
doc/Voice-pseudo-modem: shortened keepalive timeout
Mychaela Falconia <falcon@freecalypso.org>
parents:
383
diff
changeset
|
91 firmware will execute a power-off after at most 20 s. |
376
3f1a587b3a84
doc/Voice-pseudo-modem written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
92 |
3f1a587b3a84
doc/Voice-pseudo-modem written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
93 * In order to make the phone-turned-VPM do anything useful, you will need to |
3f1a587b3a84
doc/Voice-pseudo-modem written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
94 connect the headset jack serial port to a host computer running FC host tools, |
3f1a587b3a84
doc/Voice-pseudo-modem written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
95 run rvinterf to keep the phone alive (keep it from automatically powering |
3f1a587b3a84
doc/Voice-pseudo-modem written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
96 off), and use FC host utility fc-shell to issue AT commands to it over the |
3f1a587b3a84
doc/Voice-pseudo-modem written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
97 RVTMUX channel managed by rvinterf. |
3f1a587b3a84
doc/Voice-pseudo-modem written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
98 |
3f1a587b3a84
doc/Voice-pseudo-modem written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
99 * The phone will remain on (i.e., the fw won't execute an automatic power-off) |
3f1a587b3a84
doc/Voice-pseudo-modem written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
100 for as long as there is either a charging power adapter plugged in or a |
3f1a587b3a84
doc/Voice-pseudo-modem written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
101 connected host computer running rvinterf - if there is no charging power, |
3f1a587b3a84
doc/Voice-pseudo-modem written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
102 the fw will send periodic keepalive queries to check for the presence of a |
3f1a587b3a84
doc/Voice-pseudo-modem written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
103 connected rvinterf process. |
3f1a587b3a84
doc/Voice-pseudo-modem written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
104 |
3f1a587b3a84
doc/Voice-pseudo-modem written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
105 Playing with FreeCalypso VPM on a Pirelli DP-L10 |
3f1a587b3a84
doc/Voice-pseudo-modem written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
106 ================================================ |
3f1a587b3a84
doc/Voice-pseudo-modem written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
107 |
3f1a587b3a84
doc/Voice-pseudo-modem written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
108 There are two ways in which one can play with FC VPM firmware on a Pirelli: |
3f1a587b3a84
doc/Voice-pseudo-modem written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
109 |
3f1a587b3a84
doc/Voice-pseudo-modem written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
110 * FC VPM fw can be flashed into the phone just like on Mot C1xx. To make this |
3f1a587b3a84
doc/Voice-pseudo-modem written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
111 approach sensible, you will also need to craft and install a charging config |
3f1a587b3a84
doc/Voice-pseudo-modem written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
112 file that will cause our FCHG driver to initiate the charging process |
3f1a587b3a84
doc/Voice-pseudo-modem written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
113 automatically when the battery voltage falls below some sensible threshold, |
3f1a587b3a84
doc/Voice-pseudo-modem written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
114 without requiring manual charging start via AT@CHG=1. In this case the |
3f1a587b3a84
doc/Voice-pseudo-modem written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
115 reflashed phone will behave like C1xx in the previous section, except that |
3f1a587b3a84
doc/Voice-pseudo-modem written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
116 the charging power source and the host computer connection are one and the |
3f1a587b3a84
doc/Voice-pseudo-modem written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
117 same in the case of Pirelli's USB. |
3f1a587b3a84
doc/Voice-pseudo-modem written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
118 |
3f1a587b3a84
doc/Voice-pseudo-modem written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
119 * The other approach is to keep Pirelli's original fw in the flash, let the |
3f1a587b3a84
doc/Voice-pseudo-modem written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
120 phone function normally when not in the middle of a FreeCalypso VPM session, |
3f1a587b3a84
doc/Voice-pseudo-modem written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
121 and load our FC VPM fw into RAM via fc-xram, making use of this phone's huge |
3f1a587b3a84
doc/Voice-pseudo-modem written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
122 RAM that can hold an entire functional fw image without flashing. This is |
3f1a587b3a84
doc/Voice-pseudo-modem written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
123 the Mother's preferred method. |
3f1a587b3a84
doc/Voice-pseudo-modem written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
124 |
3f1a587b3a84
doc/Voice-pseudo-modem written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
125 See the Pirelli-Howto article for the details. |