FreeCalypso > hg > fc-tourmaline
view src/cs/layer1/include/l1_ctl.h @ 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 | 4e78acac3d88 |
children |
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/************* Revision Controle System Header ************* * GSM Layer 1 software * L1_CTL.H * * Filename l1_ctl.h * Copyright 2003 (C) Texas Instruments * ************* Revision Controle System Header *************/ /************************************/ /* Automatic timing control (TOA) */ /************************************/ #define C_RED 1 // Factor used to reduce the maximum accumulated values. // Default : 1/2 #define C_GEW 1 // Weighting factor. Default : 1/2 #define C_SNRGR 2560 // 2.5 F6.10 #define C_SNR_THR 8192 // 8 F6.10 #define TOA_HISTO_LEN 11 // Histogram length /* * FreeCalypso Frankenstein: the following definition has been added * from LoCosto version of this file, as it is used by l1_cmplx.c * fairly extensively. * * Disassembly-matching reconstruction has revealed that the constant * in question was originally 210 in the TCS211 version, and then * increased to 220 in the LoCosto source. We currently seek to match * TCS211 without any changes, hence we are setting it back to 210. */ #define IL_FOR_RXLEV_SNR 210 // RX POWER LEVEL /************************************/ /* Automatic Gain Control (AGC) */ /************************************/ #define INDEX_MIN 0 #define INDEX_MAX 240 // 120 /************************************/ /* Automatic frequency compensation */ /************************************/ #define C_thr_snr 2560 // 1/0.4 * 2**10 #define C_thr_P 524288L // 0.5 * 2**20 #define C_cov_start 838861L // 0.8 * 2**20 #define C_a0_kalman 10486L // 0.01 * 2**20 #define C_g_kalman 53687091L// 0.05 * 2**30 #define C_N_del 2 // delay of frequency control loop // due to C W R pipeline #define C_Q 3L // 0.000003 * 2**20 #define C_thr_K 209715L // 0.2 * 2**20 #define C_thr_phi 328 // 0.01 * 2**15 #if (VCXO_ALGO == 1) #define C_WIN_AVG_SIZE_M 64 // average size M #define C_PSI_AVG_SIZE_D 32 // distance size D #define C_MSIZE (C_WIN_AVG_SIZE_M * C_PSI_AVG_SIZE_D) // Data history for predictor #define C_RGAP_BAD_SNR_COUNT_B 32 // bad SNR count B #define ALGO_AFC_RXGAP 1 // reception gap algo #define ALGO_AFC_KALMAN 1 // Kalman filter #define ALGO_AFC_LQG_PREDICTOR 2 // LQG filter + rgap predictor #define ALGO_AFC_KALMAN_PREDICTOR 3 // Kalman filter + rgap predictor #endif #if ((ANLG_FAM == 1) || (ANLG_FAM == 2) || (ANLG_FAM == 3)) // clipping related to AFC DAC linearity range #define C_max_step 32000 // 4000 * 2**3 #define C_min_step -32000 // -4000 * 2**3 #endif