FreeCalypso > hg > fc-tourmaline
view bwsplash/bwsplash.pbm @ 303:f76436d19a7a default tip
!GPRS config: fix long-standing AT+COPS chance hanging bug
There has been a long-standing bug in FreeCalypso going back years:
sometimes in the AT command bring-up sequence of an ACI-only MS,
the AT+COPS command would produce only a power scan followed by
cessation of protocol stack activity (only L1 ADC traces), instead
of the expected network search sequence. This behaviour was seen
in different FC firmware versions going back to Citrine, and seemed
to follow some law of chance, not reliably repeatable.
This bug has been tracked down and found to be specific to !GPRS
configuration, stemming from our TCS2/TCS3 hybrid and reconstruction
of !GPRS support that was bitrotten in TCS3.2/LoCosto version.
ACI module psa_mms.c, needed only for !GPRS, was missing in the TCS3
version and had to be pulled from TCS2 - but as it turns out,
there is a new field in the MMR_REG_REQ primitive that needs to be
set correctly, and that psa_mms.c module is the place where this
initialization needed to be added.
author | Mychaela Falconia <falcon@freecalypso.org> |
---|---|
date | Thu, 08 Jun 2023 08:23:37 +0000 |
parents | 4d9f24c501f3 |
children |
line wrap: on
line source
P1 80 30 11111110000000000000000000000111111000000000011000000000000000000000000000000000 11111110000000000000000000000111011100000000011000000000000000000000000000000000 11000000110100011000000110001100001100011100011011000011011011000011100000111000 11000000111101111110011111101100000000111111011001100110011111100111111011111100 11111110110001100110011001101100000000110011011001100110011000110110011011000110 11111110110011000110110001101100000000000111011001100100011000110111100011000110 11000000110011111110111111101100000110111111011000111100011000110011111011000110 11000000110011000000110000001100001101100011011000111100011000110000011011000110 11000000110001100110011001100111011101110111011000111000011101110110011011001110 11000000110001111100011111000011111000111111011000011000011111100111111001111100 00000000000000000000000000000000000000000000000000011000011000000000000000000000 00000000000000000000000000000000000000000000000000110000011000000000000000000000 00000000000000000000000000000000000000000000000001110000011000000000000000000000 00000000000000000000000000000000000000000000000000000000000000000000000000000000 00000000000000000000000000000000000000000000000000000000000000000000000000000000 00000000000000000000000000000000000000000000000000000000000000000000000000000000 00000000000000000000000000000000000000000000000000000000000000000000000000000000 00000000000000000000000000000000000000000000000000000000000000000000000000000000 00000000000000000000000000000000000000000000000000000000000000000000000000000000 00000000000000000000000000000000000000000000000000000000000000000000000000000000 00000000000000000000000000011000000000000000000000000000000000000000000000000000 00000000000000000000000000011000000011000110000000000000000000000000000000000000 00000000000000000000000000011000000000000110000011000000000000000000000000000000 00000000000000000000000000011000000011001111001111110000000000000000000000000000 00000000000000000000000000011000000011000110001100110000000000000000000000000000 00000000000000000000000000011000000011000110011000110000000000000000000000000000 00000000000000000000000000011000000011000110011111110000000000000000000000000000 00000000000000000000000000011000000011000110011000000000000000000000000000000000 00000000000000000000000000011111110011000110001100110000000000000000000000000000 00000000000000000000000000011111110011000111001111100000000000000000000000000000