en 129 / mbed-dev

fix LPC812 PWM

Dependents:   IR_LED_Send

Fork of mbed-dev by mbed official

targets/cmsis/TARGET_STM/TARGET_STM32F3/stm32f3xx_hal_crc_ex.c@129:2e517c56bcfb, 2016-05-16 (annotated)

Committer:
nameless129
Date:
Mon May 16 16:50:30 2016 +0000
Revision:
129:2e517c56bcfb
Parent:
0:9b334a45a8ff 
PWM Fix:Duty 0%??H???????????????

Who changed what in which revision?

UserRevisionLine numberNew contents of line
bogdanm 0:9b334a45a8ff 1 /**
bogdanm 0:9b334a45a8ff 2 ******************************************************************************
bogdanm 0:9b334a45a8ff 3 * @file stm32f3xx_hal_crc_ex.c
bogdanm 0:9b334a45a8ff 4 * @author MCD Application Team
bogdanm 0:9b334a45a8ff 5 * @version V1.1.0
bogdanm 0:9b334a45a8ff 6 * @date 12-Sept-2014
bogdanm 0:9b334a45a8ff 7 * @brief Extended CRC HAL module driver.
bogdanm 0:9b334a45a8ff 8 *
bogdanm 0:9b334a45a8ff 9 * This file provides firmware functions to manage the following
bogdanm 0:9b334a45a8ff 10 * functionalities of the CRC peripheral:
bogdanm 0:9b334a45a8ff 11 * + Initialization/de-initialization functions
bogdanm 0:9b334a45a8ff 12 * + I/O operation functions
bogdanm 0:9b334a45a8ff 13 * + Peripheral Control functions
bogdanm 0:9b334a45a8ff 14 * + Peripheral State functions
bogdanm 0:9b334a45a8ff 15 *
bogdanm 0:9b334a45a8ff 16 @verbatim
bogdanm 0:9b334a45a8ff 17 ================================================================================
bogdanm 0:9b334a45a8ff 18 ##### <Product specific features/integration> #####
bogdanm 0:9b334a45a8ff 19 ================================================================================
bogdanm 0:9b334a45a8ff 20
bogdanm 0:9b334a45a8ff 21 [..] < This section can contain:
bogdanm 0:9b334a45a8ff 22 (#) Description of the product specific implementation; all features
bogdanm 0:9b334a45a8ff 23 that is specific to this IP: separate clock for RTC/LCD/IWDG/ADC,
bogdanm 0:9b334a45a8ff 24 power domain (backup domain for the RTC)...
bogdanm 0:9b334a45a8ff 25 (#) IP main features, only when needed and not mandatory for all IPs,
bogdanm 0:9b334a45a8ff 26 ex. for xWDG, GPIO, COMP...
bogdanm 0:9b334a45a8ff 27 >
bogdanm 0:9b334a45a8ff 28
bogdanm 0:9b334a45a8ff 29 [..] < You can add as much sections as needed.>
bogdanm 0:9b334a45a8ff 30
bogdanm 0:9b334a45a8ff 31 [..] < You can add as much sections as needed.>
bogdanm 0:9b334a45a8ff 32
bogdanm 0:9b334a45a8ff 33
bogdanm 0:9b334a45a8ff 34 ##### How to use this driver #####
bogdanm 0:9b334a45a8ff 35 ================================================================================
bogdanm 0:9b334a45a8ff 36 [..]
bogdanm 0:9b334a45a8ff 37 (+) Enable CRC AHB clock using __CRC_CLK_ENABLE();
bogdanm 0:9b334a45a8ff 38 (+) Initialize CRC calculator
bogdanm 0:9b334a45a8ff 39 - specify generating polynomial (IP default or non-default one)
bogdanm 0:9b334a45a8ff 40 - specify initialization value (IP default or non-default one)
bogdanm 0:9b334a45a8ff 41 - specify input data format
bogdanm 0:9b334a45a8ff 42 - specify input or output data inversion mode if any
bogdanm 0:9b334a45a8ff 43 (+) Use HAL_CRC_Accumulate() function to compute the CRC value of the
bogdanm 0:9b334a45a8ff 44 input data buffer starting with the previously computed CRC as
bogdanm 0:9b334a45a8ff 45 initialization value
bogdanm 0:9b334a45a8ff 46 (+) Use HAL_CRC_Calculate() function to compute the CRC value of the
bogdanm 0:9b334a45a8ff 47 input data buffer starting with the defined initialization value
bogdanm 0:9b334a45a8ff 48 (default or non-default) to initiate CRC calculation
bogdanm 0:9b334a45a8ff 49
bogdanm 0:9b334a45a8ff 50 @endverbatim
bogdanm 0:9b334a45a8ff 51 ******************************************************************************
bogdanm 0:9b334a45a8ff 52 * @attention
bogdanm 0:9b334a45a8ff 53 *
bogdanm 0:9b334a45a8ff 54 * <h2><center>&copy; COPYRIGHT(c) 2014 STMicroelectronics</center></h2>
bogdanm 0:9b334a45a8ff 55 *
bogdanm 0:9b334a45a8ff 56 * Redistribution and use in source and binary forms, with or without modification,
bogdanm 0:9b334a45a8ff 57 * are permitted provided that the following conditions are met:
bogdanm 0:9b334a45a8ff 58 * 1. Redistributions of source code must retain the above copyright notice,
bogdanm 0:9b334a45a8ff 59 * this list of conditions and the following disclaimer.
bogdanm 0:9b334a45a8ff 60 * 2. Redistributions in binary form must reproduce the above copyright notice,
bogdanm 0:9b334a45a8ff 61 * this list of conditions and the following disclaimer in the documentation
bogdanm 0:9b334a45a8ff 62 * and/or other materials provided with the distribution.
bogdanm 0:9b334a45a8ff 63 * 3. Neither the name of STMicroelectronics nor the names of its contributors
bogdanm 0:9b334a45a8ff 64 * may be used to endorse or promote products derived from this software
bogdanm 0:9b334a45a8ff 65 * without specific prior written permission.
bogdanm 0:9b334a45a8ff 66 *
bogdanm 0:9b334a45a8ff 67 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
bogdanm 0:9b334a45a8ff 68 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
bogdanm 0:9b334a45a8ff 69 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
bogdanm 0:9b334a45a8ff 70 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
bogdanm 0:9b334a45a8ff 71 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
bogdanm 0:9b334a45a8ff 72 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
bogdanm 0:9b334a45a8ff 73 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
bogdanm 0:9b334a45a8ff 74 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
bogdanm 0:9b334a45a8ff 75 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
bogdanm 0:9b334a45a8ff 76 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
bogdanm 0:9b334a45a8ff 77 *
bogdanm 0:9b334a45a8ff 78 ******************************************************************************
bogdanm 0:9b334a45a8ff 79 */
bogdanm 0:9b334a45a8ff 80
bogdanm 0:9b334a45a8ff 81 /* Includes ------------------------------------------------------------------*/
bogdanm 0:9b334a45a8ff 82 #include "stm32f3xx_hal.h"
bogdanm 0:9b334a45a8ff 83
bogdanm 0:9b334a45a8ff 84 /** @addtogroup STM32F3xx_HAL_Driver
bogdanm 0:9b334a45a8ff 85 * @{
bogdanm 0:9b334a45a8ff 86 */
bogdanm 0:9b334a45a8ff 87
bogdanm 0:9b334a45a8ff 88 /** @defgroup CRCEx CRC Extended HAL module driver
bogdanm 0:9b334a45a8ff 89 * @brief CRC Extended HAL module driver
bogdanm 0:9b334a45a8ff 90 * @{
bogdanm 0:9b334a45a8ff 91 */
bogdanm 0:9b334a45a8ff 92
bogdanm 0:9b334a45a8ff 93 #ifdef HAL_CRC_MODULE_ENABLED
bogdanm 0:9b334a45a8ff 94
bogdanm 0:9b334a45a8ff 95 /* Private typedef -----------------------------------------------------------*/
bogdanm 0:9b334a45a8ff 96 /* Private define ------------------------------------------------------------*/
bogdanm 0:9b334a45a8ff 97 /* Private macro -------------------------------------------------------------*/
bogdanm 0:9b334a45a8ff 98 /* Private variables ---------------------------------------------------------*/
bogdanm 0:9b334a45a8ff 99 /* Private function prototypes -----------------------------------------------*/
bogdanm 0:9b334a45a8ff 100 /* Exported functions --------------------------------------------------------*/
bogdanm 0:9b334a45a8ff 101
bogdanm 0:9b334a45a8ff 102 /** @defgroup CRCEx_Exported_Functions CRC Extended Exported Functions
bogdanm 0:9b334a45a8ff 103 * @{
bogdanm 0:9b334a45a8ff 104 */
bogdanm 0:9b334a45a8ff 105
bogdanm 0:9b334a45a8ff 106 /** @defgroup CRCEx_Exported_Functions_Group1 Extended Initialization and de-initialization functions
bogdanm 0:9b334a45a8ff 107 * @brief Extended Initialization and Configuration functions.
bogdanm 0:9b334a45a8ff 108 *
bogdanm 0:9b334a45a8ff 109 @verbatim
bogdanm 0:9b334a45a8ff 110 ===============================================================================
bogdanm 0:9b334a45a8ff 111 ##### Initialization/de-initialization functions #####
bogdanm 0:9b334a45a8ff 112 ===============================================================================
bogdanm 0:9b334a45a8ff 113 [..] This section provides functions allowing to:
bogdanm 0:9b334a45a8ff 114 (+) Initialize the CRC according to the specified parameters
bogdanm 0:9b334a45a8ff 115 in the CRC_InitTypeDef and create the associated handle
bogdanm 0:9b334a45a8ff 116 (+) DeInitialize the CRC peripheral
bogdanm 0:9b334a45a8ff 117 (+) Initialize the CRC MSP
bogdanm 0:9b334a45a8ff 118 (+) DeInitialize CRC MSP
bogdanm 0:9b334a45a8ff 119
bogdanm 0:9b334a45a8ff 120 @endverbatim
bogdanm 0:9b334a45a8ff 121 * @{
bogdanm 0:9b334a45a8ff 122 */
bogdanm 0:9b334a45a8ff 123
bogdanm 0:9b334a45a8ff 124
bogdanm 0:9b334a45a8ff 125 /**
bogdanm 0:9b334a45a8ff 126 * @brief Initializes the CRC polynomial if different from default one.
bogdanm 0:9b334a45a8ff 127 * @param hcrc: CRC handle
bogdanm 0:9b334a45a8ff 128 * @param Pol: CRC generating polynomial (7, 8, 16 or 32-bit long)
bogdanm 0:9b334a45a8ff 129 * This parameter is written in normal representation, e.g.
bogdanm 0:9b334a45a8ff 130 * for a polynomial of degree 7, X^7 + X^6 + X^5 + X^2 + 1 is written 0x65
bogdanm 0:9b334a45a8ff 131 * for a polynomial of degree 16, X^16 + X^12 + X^5 + 1 is written 0x1021
bogdanm 0:9b334a45a8ff 132 * @param PolyLength: CRC polynomial length
bogdanm 0:9b334a45a8ff 133 * This parameter can be one of the following values:
bogdanm 0:9b334a45a8ff 134 * @arg CRC_POLYLENGTH_7B: 7-bit long CRC (generating polynomial of degree 7)
bogdanm 0:9b334a45a8ff 135 * @arg CRC_POLYLENGTH_8B: 8-bit long CRC (generating polynomial of degree 8)
bogdanm 0:9b334a45a8ff 136 * @arg CRC_POLYLENGTH_16B: 16-bit long CRC (generating polynomial of degree 16)
bogdanm 0:9b334a45a8ff 137 * @arg CRC_POLYLENGTH_32B: 32-bit long CRC (generating polynomial of degree 32)
bogdanm 0:9b334a45a8ff 138 * @retval HAL status
bogdanm 0:9b334a45a8ff 139 */
bogdanm 0:9b334a45a8ff 140 HAL_StatusTypeDef HAL_CRCEx_Polynomial_Set(CRC_HandleTypeDef *hcrc, uint32_t Pol, uint32_t PolyLength)
bogdanm 0:9b334a45a8ff 141 {
bogdanm 0:9b334a45a8ff 142 uint32_t msb = 31; /* polynomial degree is 32 at most, so msb is initialized to max value */
bogdanm 0:9b334a45a8ff 143
bogdanm 0:9b334a45a8ff 144 /* Check the parameters */
bogdanm 0:9b334a45a8ff 145 assert_param(IS_CRC_POL_LENGTH(PolyLength));
bogdanm 0:9b334a45a8ff 146
bogdanm 0:9b334a45a8ff 147 /* check polynomial definition vs polynomial size:
bogdanm 0:9b334a45a8ff 148 * polynomial length must be aligned with polynomial
bogdanm 0:9b334a45a8ff 149 * definition. HAL_ERROR is reported if Pol degree is
bogdanm 0:9b334a45a8ff 150 * larger than that indicated by PolyLength.
bogdanm 0:9b334a45a8ff 151 * Look for MSB position: msb will contain the degree of
bogdanm 0:9b334a45a8ff 152 * the second to the largest polynomial member. E.g., for
bogdanm 0:9b334a45a8ff 153 * X^7 + X^6 + X^5 + X^2 + 1, msb = 6. */
bogdanm 0:9b334a45a8ff 154 while (((Pol & (0x1 << msb)) == 0) && (msb-- > 0));
bogdanm 0:9b334a45a8ff 155
bogdanm 0:9b334a45a8ff 156 switch (PolyLength)
bogdanm 0:9b334a45a8ff 157 {
bogdanm 0:9b334a45a8ff 158 case CRC_POLYLENGTH_7B:
bogdanm 0:9b334a45a8ff 159 if (msb >= HAL_CRC_LENGTH_7B) return HAL_ERROR;
bogdanm 0:9b334a45a8ff 160 break;
bogdanm 0:9b334a45a8ff 161 case CRC_POLYLENGTH_8B:
bogdanm 0:9b334a45a8ff 162 if (msb >= HAL_CRC_LENGTH_8B) return HAL_ERROR;
bogdanm 0:9b334a45a8ff 163 break;
bogdanm 0:9b334a45a8ff 164 case CRC_POLYLENGTH_16B:
bogdanm 0:9b334a45a8ff 165 if (msb >= HAL_CRC_LENGTH_16B) return HAL_ERROR;
bogdanm 0:9b334a45a8ff 166 break;
bogdanm 0:9b334a45a8ff 167 case CRC_POLYLENGTH_32B:
bogdanm 0:9b334a45a8ff 168 /* no polynomial definition vs. polynomial length issue possible */
bogdanm 0:9b334a45a8ff 169 break;
bogdanm 0:9b334a45a8ff 170 }
bogdanm 0:9b334a45a8ff 171
bogdanm 0:9b334a45a8ff 172 /* set generating polynomial */
bogdanm 0:9b334a45a8ff 173 WRITE_REG(hcrc->Instance->POL, Pol);
bogdanm 0:9b334a45a8ff 174
bogdanm 0:9b334a45a8ff 175 /* set generating polynomial size */
bogdanm 0:9b334a45a8ff 176 MODIFY_REG(hcrc->Instance->CR, CRC_CR_POLYSIZE, PolyLength);
bogdanm 0:9b334a45a8ff 177
bogdanm 0:9b334a45a8ff 178 /* Return function status */
bogdanm 0:9b334a45a8ff 179 return HAL_OK;
bogdanm 0:9b334a45a8ff 180 }
bogdanm 0:9b334a45a8ff 181
bogdanm 0:9b334a45a8ff 182 /**
bogdanm 0:9b334a45a8ff 183 * @brief Set the Reverse Input data mode.
bogdanm 0:9b334a45a8ff 184 * @param hcrc: CRC handle
bogdanm 0:9b334a45a8ff 185 * @param InputReverseMode: Input Data inversion mode
bogdanm 0:9b334a45a8ff 186 * This parameter can be one of the following values:
bogdanm 0:9b334a45a8ff 187 * @arg CRC_INPUTDATA_NOINVERSION: no change in bit order (default value)
bogdanm 0:9b334a45a8ff 188 * @arg CRC_INPUTDATA_INVERSION_BYTE: Byte-wise bit reversal
bogdanm 0:9b334a45a8ff 189 * @arg CRC_INPUTDATA_INVERSION_HALFWORD: HalfWord-wise bit reversal
bogdanm 0:9b334a45a8ff 190 * @arg CRC_INPUTDATA_INVERSION_WORD: Word-wise bit reversal
bogdanm 0:9b334a45a8ff 191 * @retval HAL status
bogdanm 0:9b334a45a8ff 192 */
bogdanm 0:9b334a45a8ff 193 HAL_StatusTypeDef HAL_CRCEx_Input_Data_Reverse(CRC_HandleTypeDef *hcrc, uint32_t InputReverseMode)
bogdanm 0:9b334a45a8ff 194 {
bogdanm 0:9b334a45a8ff 195 /* Check the parameters */
bogdanm 0:9b334a45a8ff 196 assert_param(IS_CRC_INPUTDATA_INVERSION_MODE(InputReverseMode));
bogdanm 0:9b334a45a8ff 197
bogdanm 0:9b334a45a8ff 198 /* Change CRC peripheral state */
bogdanm 0:9b334a45a8ff 199 hcrc->State = HAL_CRC_STATE_BUSY;
bogdanm 0:9b334a45a8ff 200
bogdanm 0:9b334a45a8ff 201 /* set input data inversion mode */
bogdanm 0:9b334a45a8ff 202 MODIFY_REG(hcrc->Instance->CR, CRC_CR_REV_IN, InputReverseMode);
bogdanm 0:9b334a45a8ff 203 /* Change CRC peripheral state */
bogdanm 0:9b334a45a8ff 204 hcrc->State = HAL_CRC_STATE_READY;
bogdanm 0:9b334a45a8ff 205
bogdanm 0:9b334a45a8ff 206 /* Return function status */
bogdanm 0:9b334a45a8ff 207 return HAL_OK;
bogdanm 0:9b334a45a8ff 208 }
bogdanm 0:9b334a45a8ff 209
bogdanm 0:9b334a45a8ff 210 /**
bogdanm 0:9b334a45a8ff 211 * @brief Set the Reverse Output data mode.
bogdanm 0:9b334a45a8ff 212 * @param hcrc: CRC handle
bogdanm 0:9b334a45a8ff 213 * @param OutputReverseMode: Output Data inversion mode
bogdanm 0:9b334a45a8ff 214 * This parameter can be one of the following values:
bogdanm 0:9b334a45a8ff 215 * @arg CRC_OUTPUTDATA_INVERSION_DISABLED: no CRC inversion (default value)
bogdanm 0:9b334a45a8ff 216 * @arg CRC_OUTPUTDATA_INVERSION_ENABLED: bit-level inversion (e.g for a 8-bit CRC: 0xB5 becomes 0xAD)
bogdanm 0:9b334a45a8ff 217 * @retval HAL status
bogdanm 0:9b334a45a8ff 218 */
bogdanm 0:9b334a45a8ff 219 HAL_StatusTypeDef HAL_CRCEx_Output_Data_Reverse(CRC_HandleTypeDef *hcrc, uint32_t OutputReverseMode)
bogdanm 0:9b334a45a8ff 220 {
bogdanm 0:9b334a45a8ff 221 /* Check the parameters */
bogdanm 0:9b334a45a8ff 222 assert_param(IS_CRC_OUTPUTDATA_INVERSION_MODE(OutputReverseMode));
bogdanm 0:9b334a45a8ff 223
bogdanm 0:9b334a45a8ff 224 /* Change CRC peripheral state */
bogdanm 0:9b334a45a8ff 225 hcrc->State = HAL_CRC_STATE_BUSY;
bogdanm 0:9b334a45a8ff 226
bogdanm 0:9b334a45a8ff 227 /* set output data inversion mode */
bogdanm 0:9b334a45a8ff 228 MODIFY_REG(hcrc->Instance->CR, CRC_CR_REV_OUT, OutputReverseMode);
bogdanm 0:9b334a45a8ff 229
bogdanm 0:9b334a45a8ff 230 /* Change CRC peripheral state */
bogdanm 0:9b334a45a8ff 231 hcrc->State = HAL_CRC_STATE_READY;
bogdanm 0:9b334a45a8ff 232
bogdanm 0:9b334a45a8ff 233 /* Return function status */
bogdanm 0:9b334a45a8ff 234 return HAL_OK;
bogdanm 0:9b334a45a8ff 235 }
bogdanm 0:9b334a45a8ff 236
bogdanm 0:9b334a45a8ff 237
bogdanm 0:9b334a45a8ff 238
bogdanm 0:9b334a45a8ff 239
bogdanm 0:9b334a45a8ff 240 /**
bogdanm 0:9b334a45a8ff 241 * @}
bogdanm 0:9b334a45a8ff 242 */
bogdanm 0:9b334a45a8ff 243
bogdanm 0:9b334a45a8ff 244
bogdanm 0:9b334a45a8ff 245 /**
bogdanm 0:9b334a45a8ff 246 * @}
bogdanm 0:9b334a45a8ff 247 */
bogdanm 0:9b334a45a8ff 248
bogdanm 0:9b334a45a8ff 249
bogdanm 0:9b334a45a8ff 250 #endif /* HAL_CRC_MODULE_ENABLED */
bogdanm 0:9b334a45a8ff 251 /**
bogdanm 0:9b334a45a8ff 252 * @}
bogdanm 0:9b334a45a8ff 253 */
bogdanm 0:9b334a45a8ff 254
bogdanm 0:9b334a45a8ff 255 /**
bogdanm 0:9b334a45a8ff 256 * @}
bogdanm 0:9b334a45a8ff 257 */
bogdanm 0:9b334a45a8ff 258
bogdanm 0:9b334a45a8ff 259 /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/