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comparison FC-handset-spec @ 90:5952e2dfdc26

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FC-handset-spec section 4.4: update for current situation
author Mychaela Falconia <falcon@freecalypso.org>
date Fri, 15 Apr 2022 06:28:41 +0000
parents b10442b756b2
children f5b954172002
comparison
equal deleted inserted replaced
89:b10442b756b2 90:5952e2dfdc26
1851 reason for this limitation is that displaying color on C139 would involve 1851 reason for this limitation is that displaying color on C139 would involve
1852 actual work (a non-trivial amount of it) to create an entirely new "small 1852 actual work (a non-trivial amount of it) to create an entirely new "small
1853 color" UI configuration (as opposed to the existing bigcolor and smallbw), 1853 color" UI configuration (as opposed to the existing bigcolor and smallbw),
1854 whereas the existing smallbw config is a freebie gift from TI. 1854 whereas the existing smallbw config is a freebie gift from TI.
1855 1855
1856 * No musical ringtones, just one extremely basic ringing sound - implementing 1856 * No dynamic mode switching support on the headset jack: this jack on all C1xx
1857 musical ringtones for the buzzer would be C139-specific work which is not 1857 phones serves a dual function, it is both an analog headset interface and a
1858 needed for the main goal of FC Libre Dumbphone, which will use Melody E1 1858 digital interface for computer connection (UART at 2.8V logic levels), and I
1859 ringing instead. 1859 currently have no plans to implement dynamic switching between these two
1860 1860 modes. There will be one firmware build configuration in which the jack
1861 * No support for actual headsets in the headset jack! The headset jack on all 1861 accepts Motorola headsets - serial cables won't work unless you shut down the
1862 Mot C1xx phones serves a dual function, it is both an analog headset interface 1862 fw and operate on the phone with tools like fc-loadtool, fc-simint or our FC
1863 and a digital interface for computer connection (UART at 2.8V logic levels), 1863 FFS editor - and another fw build configuration in which the headset jack
1864 and in FreeCalypso we absolutely require the computer interface function of 1864 accepts serial cables, but not actual headsets.
1865 this jack - it is essential for development and debugging. Therefore, the
1866 "ordinary end user" function of the headset jack is lost.
1867 1865
1868 In summary, FreeCalypso Lite on Motorola C139 will be an *extremely* basic and 1866 In summary, FreeCalypso Lite on Motorola C139 will be an *extremely* basic and
1869 "bare bones" phone - but the hope is that it would still be useful to some. 1867 "bare bones" phone - but the hope is that it would still be useful to some.