Mercurial > public > ostc4
view Small_CPU/Inc/compass_LSM303DLHC.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 |
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/** ****************************************************************************** * @file compass_LSM303DLHC.h * @author heinrichs weikamp gmbh * @date 17-August-2017 * @version V0.1.0 * @since 17-August-2017 * @brief STMicroelectronics LSM303DLHC accelerometer & magnetometer driver * @verbatim ============================================================================== ##### How to use ##### ============================================================================== @endverbatim ****************************************************************************** * @attention * * <h2><center>© COPYRIGHT(c) 2017 heinrichs weikamp</center></h2> * ****************************************************************************** */ /* Define to prevent recursive inclusion -------------------------------------*/ #ifndef COMPASS_LSM303DLHC_H #define COMPASS_LSM303DLHC_H /* Exported constants --------------------------------------------------------*/ //#include "compass_LSM303D.h" #define DLHC_CTRL_REG1_A 0x20 #define DLHC_CTRL_REG2_A 0x21 #define DLHC_CTRL_REG3_A 0x22 #define DLHC_CTRL_REG4_A 0x23 #define DLHC_CTRL_REG5_A 0x24 #define DLHC_CTRL_REG6_A 0x25 #define DLHC_CRA_REG_M 0x00 #define DLHC_CRB_REG_M 0x01 #define DLHC_MR_REG_M 0x02 #define DLHC_OUT_X_L_M 0x03 #define DLHC_OUT_X_H_M 0x04 #define DLHC_OUT_Y_L_M 0x05 #define DLHC_OUT_Y_H_M 0x06 #define DLHC_OUT_Z_L_M 0x07 #define DLHC_OUT_Z_H_M 0x08 // identisch mit 303D #define DLHC_OUT_X_L_A 0x28 #define DLHC_OUT_X_H_A 0x29 #define DLHC_OUT_Y_L_A 0x2A #define DLHC_OUT_Y_H_A 0x2B #define DLHC_OUT_Z_L_A 0x2C #define DLHC_OUT_Z_H_A 0x2D #endif /* COMPASS_LSM303DLHC_H */ /******************* (C) COPYRIGHT 2017 heinrichs weikamp *****END OF FILE****/