Mercurial > public > ostc4
view Discovery/Inc/vpm.h @ 240:625d20070261 div-fixes-5
Improvement SPI stability/recoverability
The core part of this commit comes from careful code reading. The core is the
swap of Scheduler_Request_sync_with_SPI(SPI_SYNC_METHOD_SOFT) and
SPI_Start_single_TxRx_with_Master(). This code is sitting in an if-clause
that is triggered on SPI comms failure. Instead of blindly trying to
communicate again (which will very likely fail again), first try to reset
the comms link, and then try to communicate again. That simply makes
more sense in this case.
This is heavily tested, on 2 simple dives, and 5 very long deco schedules
from the simulator (10+ hour deco's), and a lot of small simulated dives
(upto 2h runtime). Of all these tests, only one long session failed after
9 out of 11h runtime. Analyzing that one failure, suggests that the
RTE is looping in some error handler, which (obviously) results in
a SPI comms failure as a result. I consider this not part of this change.
Additionally, some more cleanup is done in this code.
Signed-off-by: Jan Mulder <jlmulder@xs4all.nl>
author | Jan Mulder <jlmulder@xs4all.nl> |
---|---|
date | Mon, 08 Apr 2019 11:49:13 +0200 |
parents | 5f11787b4f42 |
children | 5e0bb91d4a12 |
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/////////////////////////////////////////////////////////////////////////////// /// -*- coding: UTF-8 -*- /// /// \file Discovery/Inc/vpm.h /// \brief Varying Permeability Model (VPM) Decompression Program /// \author Heinrichs Weikamp /// \date 23.04.2013 /// /// $Id$ /////////////////////////////////////////////////////////////////////////////// /// \par Copyright (c) 2014-2018 Heinrichs Weikamp gmbh /// /// This program is free software: you can redistribute it and/or modify /// it under the terms of the GNU General Public License as published by /// the Free Software Foundation, either version 3 of the License, or /// (at your option) any later version. /// /// This program is distributed in the hope that it will be useful, /// but WITHOUT ANY WARRANTY; without even the implied warranty of /// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the /// GNU General Public License for more details. /// /// You should have received a copy of the GNU General Public License /// along with this program. If not, see <http://www.gnu.org/licenses/>. ////////////////////////////////////////////////////////////////////////////// #ifndef VPM_H #define VPM_H #include "buehlmann.h" #include "data_central.h" extern long vpm_time_calc_begin; enum DECOLIST{DECOSTOPS,FUTURESTOPS,BAILOUTSTOPS, OFF = -1}; // order is important!! enum VPM_CALC_STATUS{CALC_END, CALC_BEGIN, CALC_CRITICAL, CALC_FINAL_DECO, CALC_NULLZEIT }; //int calc_crushing_pressure(float *starting_depth, float *ending_depth, float *rate); //void vpm_check_calc(unsigned short* stoplist); //void vpm_init(void); //_Bool vpm_crush(void); //void vpm_reset_variables(void); //_Bool vpm_build_variables_from_file(unsigned long in_sdram_start); //int vpm_store_variables_in_sdram_for_transfer(unsigned long in_sdram_start); //void vpm_calc_crushing_pressure(float starting_ambient_pressure, float ending_ambient_pressure, float rate); //void vpm_deco_plan(unsigned short divetime,unsigned short * divetime_first_stop, float* first_stop_depth); float schreiner_equation__2(float *initial_inspired_gas_pressure,float *rate_change_insp_gas_pressure,float *interval_time_minutes, const float *gas_time_constant,float *initial_gas_pressure); int vpm_calc(SLifeData* pINPUT, SDiveSettings* diveSettings, SVpm* pVPM, SDecoinfo* pDECOINFO, int calc_what); void vpm_saturation_after_ascent(SLifeData* input); extern const float helium_time_constant[16]; extern const float nitrogen_time_constant[16]; float vpm_get_CNS(void); #endif /* VPM_H */