![]() |
00001 /******************************************************************************* 00002 * 00003 * Freescale Semiconductor Inc. 00004 * (c) Copyright 2004-2014 Freescale Semiconductor, Inc. 00005 * ALL RIGHTS RESERVED. 00006 * 00007 ****************************************************************************//*! 00008 * 00009 * @file etpu_spark.h 00010 * 00011 * @author Milan Brejl [r54529] 00012 * 00013 * @version 1.0 00014 * 00015 * @date 17-Mar-2014 00016 * 00017 * @brief This file contains useful macros and prototypes for SPARK API. 00018 * 00019 *******************************************************************************/ 00020 #ifndef _ETPU_SPARK_H_ 00021 #define _ETPU_SPARK_H_ 00022 00023 /******************************************************************************* 00024 * Includes 00025 *******************************************************************************/ 00026 #include "etpu_util.h" /* 24-bit types */ 00027 #include "etpu_spark_auto.h" /* auto generated header file */ 00028 00029 /******************************************************************************* 00030 * Definitions 00031 *******************************************************************************/ 00032 00033 /******************************************************************************* 00034 * Type Definitions 00035 *******************************************************************************/ 00036 /** A structure to represent an instance of SPARK. 00037 * It includes static SPARK initialization items. */ 00038 struct spark_instance_t 00039 { 00040 const uint8_t chan_num; /**< Channel number of the SPARK channel. */ 00041 const uint8_t priority; /**< Channel priority for the SPARK channel. */ 00042 const uint8_t polarity; /**< SPARK polarity. It can one any of: 00043 - @ref FS_ETPU_SPARK_FM0_ACTIVE_HIGH - active output signal state is high 00044 - @ref FS_ETPU_SPARK_FM0_ACTIVE_LOW - active output signal state is low */ 00045 const uint24_t tdc_angle; /**< The cylinder Top Dead Center as a number 00046 of TCR2 angle ticks relative to zero engine angle, in a range corresponding 00047 to 0-720 degrees. */ 00048 uint32_t *cpba; /**< Channel parameter base address. 00049 Set cpba = 0 to use automatic allocation of eTPU DATA RAM for SPARK channel 00050 parameters using the eTPU utility function fs_etpu_malloc (recommanded), 00051 or assign the cpba manually by an address where the SPARK channel parameter 00052 space will start from, e.g. 0xC3FC8100. */ 00053 uint32_t *cpba_single_spark; /**< Base address of the single spark array 00054 in eTPU DATA RAM. Set cpba_single_spark = 0 to use automatic allocation of 00055 the eTPU DATA RAM space corresponding to the spark_count value, 00056 using the eTPU utility function fs_etpu_malloc (recommanded), 00057 or assign the cpba_sparks manually by an address, e.g. 0xC3FC8100. */ 00058 }; 00059 00060 /** A structure to represent a configuration of SPARK. 00061 * It includes SPARK configuration items which can be changed in run-time. */ 00062 struct spark_config_t 00063 { 00064 int24_t angle_offset_recalc; /**< The recalculation offset angle as a 00065 number of TCR2 ticks. 00066 At the end of one spark the start angle of the next spark is calculated 00067 according to the actual engine speed and end_angle. The calculation is 00068 repeated once again in order to adjust to a speed change at a defined 00069 angular position before the originaly calculated start_angle. This position 00070 is given by angle_offset_recalc. */ 00071 uint24_t dwell_time_min; /**< The minimum spark dwell time as a number of 00072 TCR1 ticks. */ 00073 uint24_t dwell_time_max; /**< The maximum spark dwell time as a number of 00074 TCR1 ticks. */ 00075 uint24_t multi_on_time; /**< The multi-pulse ON-time as a number of TCR1 00076 ticks. */ 00077 uint24_t multi_off_time; /**< The multi-pulse OFF-time as a number of TCR1 00078 ticks. */ 00079 uint8_t spark_count; /**< The count of single sparks per engine-cycle. */ 00080 struct single_spark_config_t *p_single_spark_config; /**< Pointer to the first 00081 item of an array of the single spark configuration structures. */ 00082 uint8_t generation_disable; /**< This parameter disables/enables 00083 the generation of output pulses. It can be assigned one of the values: 00084 - @ref FS_ETPU_SPARK_GENERATION_ALLOWED 00085 - @ref FS_ETPU_SPARK_GENERATION_DISABLED */ 00086 }; 00087 00088 /** A structure to represent a single spark configuration. */ 00089 struct single_spark_config_t 00090 { 00091 int24_t end_angle; /**< The tdc_angle-relative stark main pulse end angle 00092 as a number of TCR2 ticks. 00093 Positive values precede the TDC, negative go after. 00094 The spark start angle is calculated, based on the currecnt engine speed, 00095 so that the spark main pulse ends at the end_angle. */ 00096 uint24_t dwell_time; /**< The spark dwell time as a number of TCR1 ticks. */ 00097 uint8_t multi_pulse_count; /**< The count of multi-pulses following the 00098 main spark pulse. */ 00099 }; 00100 00101 /** A structure to represent states of SPARK. */ 00102 struct spark_states_t 00103 { 00104 uint8_t error; /**< This is the error status of SPARK. It may 00105 include the following error flags: 00106 - @ref FS_ETPU_SPARK_ERROR_MIN_DWELL_APPLIED 00107 - @ref FS_ETPU_SPARK_ERROR_MAX_DWELL_APPLIED 00108 The eTPU sets the error flags, the CPU clears them after reading. */ 00109 uint24_t dwell_time_applied; /**< This is the last spark dwell-time 00110 actually generated. The value corresponds to commanded dwell_time, but 00111 it may slightly differ in case of rapid acceleration or deceleration. */ 00112 }; 00113 00114 /******************************************************************************* 00115 * Function prototypes 00116 *******************************************************************************/ 00117 /* Initialize */ 00118 uint32_t fs_etpu_spark_init( 00119 struct spark_instance_t *p_spark_instance, 00120 struct spark_config_t *p_spark_config); 00121 00122 /* Change configuration */ 00123 uint32_t fs_etpu_spark_config( 00124 struct spark_instance_t *p_spark_instance, 00125 struct spark_config_t *p_spark_config); 00126 00127 /* Get states */ 00128 uint32_t fs_etpu_spark_get_states( 00129 struct spark_instance_t *p_spark_instance, 00130 struct spark_states_t *p_spark_states); 00131 00132 #endif /* _ETPU_SPARK_H_ */ 00133 /******************************************************************************* 00134 * 00135 * Copyright: 00136 * Freescale Semiconductor, INC. All Rights Reserved. 00137 * You are hereby granted a copyright license to use, modify, and 00138 * distribute the SOFTWARE so long as this entire notice is 00139 * retained without alteration in any modified and/or redistributed 00140 * versions, and that such modified versions are clearly identified 00141 * as such. No licenses are granted by implication, estoppel or 00142 * otherwise under any patents or trademarks of Freescale 00143 * Semiconductor, Inc. This software is provided on an "AS IS" 00144 * basis and without warranty. 00145 * 00146 * To the maximum extent permitted by applicable law, Freescale 00147 * Semiconductor DISCLAIMS ALL WARRANTIES WHETHER EXPRESS OR IMPLIED, 00148 * INCLUDING IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A 00149 * PARTICULAR PURPOSE AND ANY WARRANTY AGAINST INFRINGEMENT WITH 00150 * REGARD TO THE SOFTWARE (INCLUDING ANY MODIFIED VERSIONS THEREOF) 00151 * AND ANY ACCOMPANYING WRITTEN MATERIALS. 00152 * 00153 * To the maximum extent permitted by applicable law, IN NO EVENT 00154 * SHALL Freescale Semiconductor BE LIABLE FOR ANY DAMAGES WHATSOEVER 00155 * (INCLUDING WITHOUT LIMITATION, DAMAGES FOR LOSS OF BUSINESS PROFITS, 00156 * BUSINESS INTERRUPTION, LOSS OF BUSINESS INFORMATION, OR OTHER 00157 * PECUNIARY LOSS) ARISING OF THE USE OR INABILITY TO USE THE SOFTWARE. 00158 * 00159 * Freescale Semiconductor assumes no responsibility for the 00160 * maintenance and support of this software 00161 ******************************************************************************/ 00162 /******************************************************************************* 00163 * 00164 * REVISION HISTORY: 00165 * 00166 * FILE OWNER: Milan Brejl [r54529] 00167 * 00168 * Revision 1.0 2014/03/17 r54529 00169 * Minor comment and formating improvements. 00170 * Ready for eTPU Engine Control Library release 1.0. 00171 * 00172 * Revision 0.1 2013/09/17 r54529 00173 * Initial version of file. 00174 ******************************************************************************/
Generated by ![]() |
© Freescale Semiconductor Inc. 2004 - 2012. All Rights Reserved. |