FreeCalypso > hg > freecalypso-tools
comparison doc/Host-tools-overview @ 912:3ed4f53c6092
doc/Host-tools-overview: update fc-tch2fr bogon description
author | Mychaela Falconia <falcon@freecalypso.org> |
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date | Thu, 29 Dec 2022 21:24:53 +0000 |
parents | 7077d02ed3b1 |
children | 1b8929cb7371 |
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911:7077d02ed3b1 | 912:3ed4f53c6092 |
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247 phone or other GSM device, but fc-simtool can also be invoked | 247 phone or other GSM device, but fc-simtool can also be invoked |
248 indirectly via fc-simint, in which case it operates on SIM cards | 248 indirectly via fc-simint, in which case it operates on SIM cards |
249 inside Calypso devices. | 249 inside Calypso devices. |
250 | 250 |
251 fc-tch2fr This hack-utility takes a TCH downlink recording produced with | 251 fc-tch2fr This hack-utility takes a TCH downlink recording produced with |
252 the tch record command in fc-shell and converts it to a playable | 252 the tch record command in fc-shell (specifically, the old format |
253 libgsm file which will most likely contain some garbage by | 253 that will only be produced if the source of TCH DL bits is a |
254 disregarding the non-understood DSP status words; see the | 254 very old FC firmware version) and tries to convert it to a |
255 playable libgsm file (containing garbage frames in reality, | |
256 resulting in very unpleasant noises on subsequent decoding) by | |
257 completely disregarding the DSP status words which were not | |
258 understood back when this hack was written in 2016. See our | |
255 TCH-bit-access article for more information. | 259 TCH-bit-access article for more information. |
256 | 260 |
257 fc-tmsh TI-based GSM firmwares provide a rich set of Test Mode commands | 261 fc-tmsh TI-based GSM firmwares provide a rich set of Test Mode commands |
258 that can be issued through the RVTMUX (debug trace) serial | 262 that can be issued through the RVTMUX (debug trace) serial |
259 channel, used for L1/RF test functions, production line RF | 263 channel, used for L1/RF test functions, production line RF |