ST / stm-spirit1-rf-driver

Prototype RF driver for STM Sub-1 GHz RF expansion board based on the SPSGRF-868 module for STM32 Nucleo.

Prototype RF Driver for STM Sub-1 GHz RF Expansion Boards based on the SPSGRF-868 and SPSGRF-915 Modules for STM32 Nucleo

Currently supported boards:

Note, in order to use expansion board X-NUCLEO-IDS01A4 in mbed you need to perform the following HW modifications on the board:

  • Unmount resistor R4
  • Mount resistor R7

Furthermore, on some Nucleo development boards (e.g. the NUCLEO_F429ZI), in order to be able to use Ethernet together with these Sub-1 GHz RF expansion boards, you need to compile this driver with macro SPIRIT1_SPI_MOSI=PB_5 defined, while the development board typically requires some HW modification as e.g. described here!

This driver can be used together with the 6LoWPAN stack (a.k.a. Nanostack).

source/libs/spirit1/SPIRIT1_Library/Src/SPIRIT_Irq.c@67:93bec0baf1de, 2017-07-06 (annotated)

Committer:
Wolfgang Betz
Date:
Thu Jul 06 11:13:31 2017 +0200
Revision:
67:93bec0baf1de
Parent:
34:edda6a7238ec 
Clarify some comments

Who changed what in which revision?

UserRevisionLine numberNew contents of line
Wolfgang Betz 67:93bec0baf1de 1 /**
Wolfgang Betz 67:93bec0baf1de 2 ******************************************************************************
Wolfgang Betz 67:93bec0baf1de 3 * @file SPIRIT_Irq.c
Wolfgang Betz 67:93bec0baf1de 4 * @author VMA division - AMS
Wolfgang Betz 67:93bec0baf1de 5 * @version 3.2.2
Wolfgang Betz 67:93bec0baf1de 6 * @date 08-July-2015
Wolfgang Betz 67:93bec0baf1de 7 * @brief Configuration and management of SPIRIT IRQs.
Wolfgang Betz 67:93bec0baf1de 8 * @details
Wolfgang Betz 67:93bec0baf1de 9 *
Wolfgang Betz 67:93bec0baf1de 10 * @attention
Wolfgang Betz 67:93bec0baf1de 11 *
Wolfgang Betz 67:93bec0baf1de 12 * <h2><center>&copy; COPYRIGHT(c) 2015 STMicroelectronics</center></h2>
Wolfgang Betz 67:93bec0baf1de 13 *
Wolfgang Betz 67:93bec0baf1de 14 * Redistribution and use in source and binary forms, with or without modification,
Wolfgang Betz 67:93bec0baf1de 15 * are permitted provided that the following conditions are met:
Wolfgang Betz 67:93bec0baf1de 16 * 1. Redistributions of source code must retain the above copyright notice,
Wolfgang Betz 67:93bec0baf1de 17 * this list of conditions and the following disclaimer.
Wolfgang Betz 67:93bec0baf1de 18 * 2. Redistributions in binary form must reproduce the above copyright notice,
Wolfgang Betz 67:93bec0baf1de 19 * this list of conditions and the following disclaimer in the documentation
Wolfgang Betz 67:93bec0baf1de 20 * and/or other materials provided with the distribution.
Wolfgang Betz 67:93bec0baf1de 21 * 3. Neither the name of STMicroelectronics nor the names of its contributors
Wolfgang Betz 67:93bec0baf1de 22 * may be used to endorse or promote products derived from this software
Wolfgang Betz 67:93bec0baf1de 23 * without specific prior written permission.
Wolfgang Betz 67:93bec0baf1de 24 *
Wolfgang Betz 67:93bec0baf1de 25 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
Wolfgang Betz 67:93bec0baf1de 26 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
Wolfgang Betz 67:93bec0baf1de 27 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
Wolfgang Betz 67:93bec0baf1de 28 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
Wolfgang Betz 67:93bec0baf1de 29 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
Wolfgang Betz 67:93bec0baf1de 30 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
Wolfgang Betz 67:93bec0baf1de 31 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
Wolfgang Betz 67:93bec0baf1de 32 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
Wolfgang Betz 67:93bec0baf1de 33 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
Wolfgang Betz 67:93bec0baf1de 34 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
Wolfgang Betz 67:93bec0baf1de 35 *
Wolfgang Betz 67:93bec0baf1de 36 ******************************************************************************
Wolfgang Betz 67:93bec0baf1de 37 */
Wolfgang Betz 67:93bec0baf1de 38
Wolfgang Betz 67:93bec0baf1de 39 /* Includes ------------------------------------------------------------------*/
Wolfgang Betz 67:93bec0baf1de 40 #include "SPIRIT_Irq.h"
Wolfgang Betz 67:93bec0baf1de 41 #include "MCU_Interface.h"
Wolfgang Betz 67:93bec0baf1de 42
Wolfgang Betz 67:93bec0baf1de 43
Wolfgang Betz 67:93bec0baf1de 44
Wolfgang Betz 67:93bec0baf1de 45 /**
Wolfgang Betz 67:93bec0baf1de 46 * @addtogroup SPIRIT_Libraries
Wolfgang Betz 67:93bec0baf1de 47 * @{
Wolfgang Betz 67:93bec0baf1de 48 */
Wolfgang Betz 67:93bec0baf1de 49
Wolfgang Betz 67:93bec0baf1de 50
Wolfgang Betz 67:93bec0baf1de 51 /**
Wolfgang Betz 67:93bec0baf1de 52 * @addtogroup SPIRIT_Irq
Wolfgang Betz 67:93bec0baf1de 53 * @{
Wolfgang Betz 67:93bec0baf1de 54 */
Wolfgang Betz 67:93bec0baf1de 55
Wolfgang Betz 67:93bec0baf1de 56
Wolfgang Betz 67:93bec0baf1de 57 /**
Wolfgang Betz 67:93bec0baf1de 58 * @defgroup Irq_Private_TypesDefinitions IRQ Private Types Definitions
Wolfgang Betz 67:93bec0baf1de 59 * @{
Wolfgang Betz 67:93bec0baf1de 60 */
Wolfgang Betz 67:93bec0baf1de 61
Wolfgang Betz 67:93bec0baf1de 62 /**
Wolfgang Betz 67:93bec0baf1de 63 *@}
Wolfgang Betz 67:93bec0baf1de 64 */
Wolfgang Betz 67:93bec0baf1de 65
Wolfgang Betz 67:93bec0baf1de 66
Wolfgang Betz 67:93bec0baf1de 67 /**
Wolfgang Betz 67:93bec0baf1de 68 * @defgroup Irq_Private_Defines IRQ Private Defines
Wolfgang Betz 67:93bec0baf1de 69 * @{
Wolfgang Betz 67:93bec0baf1de 70 */
Wolfgang Betz 67:93bec0baf1de 71
Wolfgang Betz 67:93bec0baf1de 72 /**
Wolfgang Betz 67:93bec0baf1de 73 *@}
Wolfgang Betz 67:93bec0baf1de 74 */
Wolfgang Betz 67:93bec0baf1de 75
Wolfgang Betz 67:93bec0baf1de 76
Wolfgang Betz 67:93bec0baf1de 77 /**
Wolfgang Betz 67:93bec0baf1de 78 * @defgroup Irq_Private_Macros IRQ Private Macros
Wolfgang Betz 67:93bec0baf1de 79 * @{
Wolfgang Betz 67:93bec0baf1de 80 */
Wolfgang Betz 67:93bec0baf1de 81
Wolfgang Betz 67:93bec0baf1de 82 /**
Wolfgang Betz 67:93bec0baf1de 83 *@}
Wolfgang Betz 67:93bec0baf1de 84 */
Wolfgang Betz 67:93bec0baf1de 85
Wolfgang Betz 67:93bec0baf1de 86
Wolfgang Betz 67:93bec0baf1de 87 /**
Wolfgang Betz 67:93bec0baf1de 88 * @defgroup Irq_Private_Variables IRQ Private Variables
Wolfgang Betz 67:93bec0baf1de 89 * @{
Wolfgang Betz 67:93bec0baf1de 90 */
Wolfgang Betz 67:93bec0baf1de 91
Wolfgang Betz 67:93bec0baf1de 92
Wolfgang Betz 67:93bec0baf1de 93 /**
Wolfgang Betz 67:93bec0baf1de 94 *@}
Wolfgang Betz 67:93bec0baf1de 95 */
Wolfgang Betz 67:93bec0baf1de 96
Wolfgang Betz 67:93bec0baf1de 97
Wolfgang Betz 67:93bec0baf1de 98 /**
Wolfgang Betz 67:93bec0baf1de 99 * @defgroup Irq_Private_FunctionPrototypes IRQ Private Function Prototypes
Wolfgang Betz 67:93bec0baf1de 100 * @{
Wolfgang Betz 67:93bec0baf1de 101 */
Wolfgang Betz 67:93bec0baf1de 102
Wolfgang Betz 67:93bec0baf1de 103 /**
Wolfgang Betz 67:93bec0baf1de 104 *@}
Wolfgang Betz 67:93bec0baf1de 105 */
Wolfgang Betz 67:93bec0baf1de 106
Wolfgang Betz 67:93bec0baf1de 107
Wolfgang Betz 67:93bec0baf1de 108 /**
Wolfgang Betz 67:93bec0baf1de 109 * @defgroup Irq_Private_Functions IRQ Private Functions
Wolfgang Betz 67:93bec0baf1de 110 * @{
Wolfgang Betz 67:93bec0baf1de 111 */
Wolfgang Betz 67:93bec0baf1de 112
Wolfgang Betz 67:93bec0baf1de 113
Wolfgang Betz 67:93bec0baf1de 114 /**
Wolfgang Betz 67:93bec0baf1de 115 * @brief De initializate the SpiritIrqs structure setting all the bitfield to 0.
Wolfgang Betz 67:93bec0baf1de 116 * Moreover, it sets the IRQ mask registers to 0x00000000, disabling all IRQs.
Wolfgang Betz 67:93bec0baf1de 117 * @param pxIrqInit pointer to a variable of type @ref SpiritIrqs, in which all the
Wolfgang Betz 67:93bec0baf1de 118 * bitfields will be settled to zero.
Wolfgang Betz 67:93bec0baf1de 119 * @retval None.
Wolfgang Betz 67:93bec0baf1de 120 */
Wolfgang Betz 67:93bec0baf1de 121 void SpiritIrqDeInit(SpiritIrqs* pxIrqInit)
Wolfgang Betz 67:93bec0baf1de 122 {
Wolfgang Betz 67:93bec0baf1de 123 uint8_t tempRegValue[4]={0x00,0x00,0x00,0x00};
Wolfgang Betz 67:93bec0baf1de 124
Wolfgang Betz 67:93bec0baf1de 125 if(pxIrqInit!=NULL)
Wolfgang Betz 67:93bec0baf1de 126 {
Wolfgang Betz 67:93bec0baf1de 127 /* Sets the bitfields of passed structure to one */
Wolfgang Betz 67:93bec0baf1de 128 *(uint32_t*)pxIrqInit = 0x0;
Wolfgang Betz 67:93bec0baf1de 129 }
Wolfgang Betz 67:93bec0baf1de 130
Wolfgang Betz 67:93bec0baf1de 131 /* Writes the IRQ_MASK registers */
Wolfgang Betz 67:93bec0baf1de 132 g_xStatus = SpiritSpiWriteRegisters(IRQ_MASK3_BASE, 4, tempRegValue);
Wolfgang Betz 67:93bec0baf1de 133 }
Wolfgang Betz 67:93bec0baf1de 134
Wolfgang Betz 67:93bec0baf1de 135
Wolfgang Betz 67:93bec0baf1de 136 /**
Wolfgang Betz 67:93bec0baf1de 137 * @brief Enables all the IRQs according to the user defined pxIrqInit structure.
Wolfgang Betz 67:93bec0baf1de 138 * @param pxIrqInit pointer to a variable of type @ref SpiritIrqs, through which the
Wolfgang Betz 67:93bec0baf1de 139 * user enable specific IRQs. This parameter is a pointer to a SpiritIrqs.
Wolfgang Betz 67:93bec0baf1de 140 * For example suppose to enable only the two IRQ Low Battery Level and Tx Data Sent:
Wolfgang Betz 67:93bec0baf1de 141 * @code
Wolfgang Betz 67:93bec0baf1de 142 * SpiritIrqs myIrqInit = {0};
Wolfgang Betz 67:93bec0baf1de 143 * myIrqInit.IRQ_LOW_BATT_LVL = 1;
Wolfgang Betz 67:93bec0baf1de 144 * myIrqInit.IRQ_TX_DATA_SENT = 1;
Wolfgang Betz 67:93bec0baf1de 145 * SpiritIrqInit(&myIrqInit);
Wolfgang Betz 67:93bec0baf1de 146 * @endcode
Wolfgang Betz 67:93bec0baf1de 147 * @retval None.
Wolfgang Betz 67:93bec0baf1de 148 */
Wolfgang Betz 67:93bec0baf1de 149 void SpiritIrqInit(SpiritIrqs* pxIrqInit)
Wolfgang Betz 67:93bec0baf1de 150 {
Wolfgang Betz 67:93bec0baf1de 151 /* Writes the IRQ_MASK registers */
Wolfgang Betz 67:93bec0baf1de 152 g_xStatus = SpiritSpiWriteRegisters(IRQ_MASK3_BASE, 4, (uint8_t*)pxIrqInit);
Wolfgang Betz 67:93bec0baf1de 153
Wolfgang Betz 67:93bec0baf1de 154 }
Wolfgang Betz 67:93bec0baf1de 155
Wolfgang Betz 67:93bec0baf1de 156
Wolfgang Betz 67:93bec0baf1de 157 /**
Wolfgang Betz 67:93bec0baf1de 158 * @brief Enables or disables a specific IRQ.
Wolfgang Betz 67:93bec0baf1de 159 * @param xIrq IRQ to enable or disable.
Wolfgang Betz 67:93bec0baf1de 160 * This parameter can be any value of @ref IrqList.
Wolfgang Betz 67:93bec0baf1de 161 * @param xNewState new state for the IRQ.
Wolfgang Betz 67:93bec0baf1de 162 * This parameter can be: S_ENABLE or S_DISABLE.
Wolfgang Betz 67:93bec0baf1de 163 * @retval None.
Wolfgang Betz 67:93bec0baf1de 164 */
Wolfgang Betz 67:93bec0baf1de 165 void SpiritIrq(IrqList xIrq, SpiritFunctionalState xNewState)
Wolfgang Betz 67:93bec0baf1de 166 {
Wolfgang Betz 67:93bec0baf1de 167 uint8_t tempRegValue[4];
Wolfgang Betz 67:93bec0baf1de 168 uint32_t tempValue = 0;
Wolfgang Betz 67:93bec0baf1de 169
Wolfgang Betz 67:93bec0baf1de 170 /* Check the parameters */
Wolfgang Betz 67:93bec0baf1de 171 s_assert_param(IS_SPIRIT_IRQ_LIST(xIrq));
Wolfgang Betz 67:93bec0baf1de 172 s_assert_param(IS_SPIRIT_FUNCTIONAL_STATE(xNewState));
Wolfgang Betz 67:93bec0baf1de 173
Wolfgang Betz 67:93bec0baf1de 174 /* Reads the IRQ_MASK registers */
Wolfgang Betz 67:93bec0baf1de 175 g_xStatus = SpiritSpiReadRegisters(IRQ_MASK3_BASE, 4, tempRegValue);
Wolfgang Betz 67:93bec0baf1de 176
Wolfgang Betz 67:93bec0baf1de 177 /* Build the IRQ mask word */
Wolfgang Betz 67:93bec0baf1de 178 for(uint8_t i=0; i<4; i++)
Wolfgang Betz 67:93bec0baf1de 179 {
Wolfgang Betz 67:93bec0baf1de 180 tempValue += ((uint32_t)tempRegValue[i])<<(8*(3-i));
Wolfgang Betz 67:93bec0baf1de 181 }
Wolfgang Betz 67:93bec0baf1de 182
Wolfgang Betz 67:93bec0baf1de 183 /* Rebuild the new mask according to user request */
Wolfgang Betz 67:93bec0baf1de 184 if(xNewState == S_DISABLE)
Wolfgang Betz 67:93bec0baf1de 185 {
Wolfgang Betz 67:93bec0baf1de 186 tempValue &= (~xIrq);
Wolfgang Betz 67:93bec0baf1de 187 }
Wolfgang Betz 67:93bec0baf1de 188 else
Wolfgang Betz 67:93bec0baf1de 189 {
Wolfgang Betz 67:93bec0baf1de 190 tempValue |= (xIrq);
Wolfgang Betz 67:93bec0baf1de 191 }
Wolfgang Betz 67:93bec0baf1de 192
Wolfgang Betz 67:93bec0baf1de 193 /* Build the array of bytes to write in the IRQ_MASK registers */
Wolfgang Betz 67:93bec0baf1de 194 for(uint8_t j=0; j<4; j++)
Wolfgang Betz 67:93bec0baf1de 195 {
Wolfgang Betz 67:93bec0baf1de 196 tempRegValue[j] = (uint8_t)(tempValue>>(8*(3-j)));
Wolfgang Betz 67:93bec0baf1de 197 }
Wolfgang Betz 67:93bec0baf1de 198
Wolfgang Betz 67:93bec0baf1de 199 /* Writes the new IRQ mask in the corresponding registers */
Wolfgang Betz 67:93bec0baf1de 200 g_xStatus = SpiritSpiWriteRegisters(IRQ_MASK3_BASE, 4, tempRegValue);
Wolfgang Betz 67:93bec0baf1de 201
Wolfgang Betz 67:93bec0baf1de 202 }
Wolfgang Betz 67:93bec0baf1de 203
Wolfgang Betz 67:93bec0baf1de 204
Wolfgang Betz 67:93bec0baf1de 205 /**
Wolfgang Betz 67:93bec0baf1de 206 * @brief Fills a pointer to a structure of SpiritIrqs type reading the IRQ_MASK registers.
Wolfgang Betz 67:93bec0baf1de 207 * @param pxIrqMask pointer to a variable of type @ref SpiritIrqs, through which the
Wolfgang Betz 67:93bec0baf1de 208 * user can read which IRQs are enabled. All the bitfields equals to zero correspond
Wolfgang Betz 67:93bec0baf1de 209 * to enabled IRQs, while all the bitfields equals to one correspond to disabled IRQs.
Wolfgang Betz 67:93bec0baf1de 210 * This parameter is a pointer to a SpiritIrqs.
Wolfgang Betz 67:93bec0baf1de 211 * For example suppose that the Power On Reset and RX Data ready are the only enabled IRQs.
Wolfgang Betz 67:93bec0baf1de 212 * @code
Wolfgang Betz 67:93bec0baf1de 213 * SpiritIrqs myIrqMask;
Wolfgang Betz 67:93bec0baf1de 214 * SpiritIrqGetStatus(&myIrqMask);
Wolfgang Betz 67:93bec0baf1de 215 * @endcode
Wolfgang Betz 67:93bec0baf1de 216 * Then
Wolfgang Betz 67:93bec0baf1de 217 * myIrqMask.IRQ_POR and myIrqMask.IRQ_RX_DATA_READY are equal to 0
Wolfgang Betz 67:93bec0baf1de 218 * while all the other bitfields are equal to one.
Wolfgang Betz 67:93bec0baf1de 219 * @retval None.
Wolfgang Betz 67:93bec0baf1de 220 */
Wolfgang Betz 67:93bec0baf1de 221 void SpiritIrqGetMask(SpiritIrqs* pxIrqMask)
Wolfgang Betz 67:93bec0baf1de 222 {
Wolfgang Betz 67:93bec0baf1de 223 /* Reads IRQ_MASK registers */
Wolfgang Betz 67:93bec0baf1de 224 g_xStatus = SpiritSpiReadRegisters(IRQ_MASK3_BASE, 4, (uint8_t*)pxIrqMask);
Wolfgang Betz 67:93bec0baf1de 225 }
Wolfgang Betz 67:93bec0baf1de 226
Wolfgang Betz 67:93bec0baf1de 227
Wolfgang Betz 67:93bec0baf1de 228 /**
Wolfgang Betz 67:93bec0baf1de 229 * @brief Filla a pointer to a structure of SpiritIrqs type reading the IRQ_STATUS registers.
Wolfgang Betz 67:93bec0baf1de 230 * @param pxIrqStatus pointer to a variable of type @ref SpiritIrqs, through which the
Wolfgang Betz 67:93bec0baf1de 231 * user can read the status of all the IRQs. All the bitfields equals to one correspond
Wolfgang Betz 67:93bec0baf1de 232 * to the raised interrupts. This parameter is a pointer to a SpiritIrqs.
Wolfgang Betz 67:93bec0baf1de 233 * For example suppose that the XO settling timeout is raised as well as the Sync word
Wolfgang Betz 67:93bec0baf1de 234 * detection.
Wolfgang Betz 67:93bec0baf1de 235 * @code
Wolfgang Betz 67:93bec0baf1de 236 * SpiritIrqs myIrqStatus;
Wolfgang Betz 67:93bec0baf1de 237 * SpiritIrqGetStatus(&myIrqStatus);
Wolfgang Betz 67:93bec0baf1de 238 * @endcode
Wolfgang Betz 67:93bec0baf1de 239 * Then
Wolfgang Betz 67:93bec0baf1de 240 * myIrqStatus.IRQ_XO_COUNT_EXPIRED and myIrqStatus.IRQ_VALID_SYNC are equals to 1
Wolfgang Betz 67:93bec0baf1de 241 * while all the other bitfields are equals to zero.
Wolfgang Betz 67:93bec0baf1de 242 * @retval None.
Wolfgang Betz 67:93bec0baf1de 243 */
Wolfgang Betz 67:93bec0baf1de 244 void SpiritIrqGetStatus(SpiritIrqs* pxIrqStatus)
Wolfgang Betz 67:93bec0baf1de 245 {
Wolfgang Betz 67:93bec0baf1de 246 /* Reads IRQ_STATUS registers */
Wolfgang Betz 67:93bec0baf1de 247 g_xStatus = SpiritSpiReadRegisters(IRQ_STATUS3_BASE, 4, (uint8_t*)pxIrqStatus);
Wolfgang Betz 67:93bec0baf1de 248 }
Wolfgang Betz 67:93bec0baf1de 249
Wolfgang Betz 67:93bec0baf1de 250
Wolfgang Betz 67:93bec0baf1de 251 /**
Wolfgang Betz 67:93bec0baf1de 252 * @brief Clear the IRQ status registers.
Wolfgang Betz 67:93bec0baf1de 253 * @param None.
Wolfgang Betz 67:93bec0baf1de 254 * @retval None.
Wolfgang Betz 67:93bec0baf1de 255 */
Wolfgang Betz 67:93bec0baf1de 256 void SpiritIrqClearStatus(void)
Wolfgang Betz 67:93bec0baf1de 257 {
Wolfgang Betz 67:93bec0baf1de 258 uint8_t tempRegValue[4];
Wolfgang Betz 67:93bec0baf1de 259
Wolfgang Betz 67:93bec0baf1de 260 /* Reads the IRQ_STATUS registers clearing all the flags */
Wolfgang Betz 67:93bec0baf1de 261 g_xStatus = SpiritSpiReadRegisters(IRQ_STATUS3_BASE, 4, tempRegValue);
Wolfgang Betz 67:93bec0baf1de 262
Wolfgang Betz 67:93bec0baf1de 263 }
Wolfgang Betz 67:93bec0baf1de 264
Wolfgang Betz 67:93bec0baf1de 265
Wolfgang Betz 67:93bec0baf1de 266 /**
Wolfgang Betz 67:93bec0baf1de 267 * @brief Verifies if a specific IRQ has been generated.
Wolfgang Betz 67:93bec0baf1de 268 * The call resets all the IRQ status, so it can't be used in case of multiple raising interrupts.
Wolfgang Betz 67:93bec0baf1de 269 * @param xFlag IRQ flag to be checked.
Wolfgang Betz 67:93bec0baf1de 270 * This parameter can be any value of @ref IrqList.
Wolfgang Betz 67:93bec0baf1de 271 * @retval SpiritBool S_TRUE or S_FALSE.
Wolfgang Betz 67:93bec0baf1de 272 */
Wolfgang Betz 67:93bec0baf1de 273 SpiritBool SpiritIrqCheckFlag(IrqList xFlag)
Wolfgang Betz 67:93bec0baf1de 274 {
Wolfgang Betz 67:93bec0baf1de 275 uint8_t tempRegValue[4];
Wolfgang Betz 67:93bec0baf1de 276 uint32_t tempValue = 0;
Wolfgang Betz 67:93bec0baf1de 277 SpiritBool flag;
Wolfgang Betz 67:93bec0baf1de 278
Wolfgang Betz 67:93bec0baf1de 279 /* Check the parameters */
Wolfgang Betz 67:93bec0baf1de 280 s_assert_param(IS_SPIRIT_IRQ_LIST(xFlag));
Wolfgang Betz 67:93bec0baf1de 281
Wolfgang Betz 67:93bec0baf1de 282 /* Reads registers and build the status word */
Wolfgang Betz 67:93bec0baf1de 283 g_xStatus = SpiritSpiReadRegisters(IRQ_STATUS3_BASE, 4, tempRegValue);
Wolfgang Betz 67:93bec0baf1de 284 for(uint8_t i=0; i<4; i++)
Wolfgang Betz 67:93bec0baf1de 285 {
Wolfgang Betz 67:93bec0baf1de 286 tempValue += ((uint32_t)tempRegValue[i])<<(8*(3-i));
Wolfgang Betz 67:93bec0baf1de 287 }
Wolfgang Betz 67:93bec0baf1de 288
Wolfgang Betz 67:93bec0baf1de 289 if(tempValue & xFlag)
Wolfgang Betz 67:93bec0baf1de 290 {
Wolfgang Betz 67:93bec0baf1de 291 flag = S_TRUE;
Wolfgang Betz 67:93bec0baf1de 292 }
Wolfgang Betz 67:93bec0baf1de 293 else
Wolfgang Betz 67:93bec0baf1de 294 {
Wolfgang Betz 67:93bec0baf1de 295 flag = S_FALSE;
Wolfgang Betz 67:93bec0baf1de 296 }
Wolfgang Betz 67:93bec0baf1de 297
Wolfgang Betz 67:93bec0baf1de 298 return flag;
Wolfgang Betz 67:93bec0baf1de 299
Wolfgang Betz 67:93bec0baf1de 300 }
Wolfgang Betz 67:93bec0baf1de 301
Wolfgang Betz 67:93bec0baf1de 302
Wolfgang Betz 67:93bec0baf1de 303 /**
Wolfgang Betz 67:93bec0baf1de 304 *@}
Wolfgang Betz 67:93bec0baf1de 305 */
Wolfgang Betz 67:93bec0baf1de 306
Wolfgang Betz 67:93bec0baf1de 307
Wolfgang Betz 67:93bec0baf1de 308 /**
Wolfgang Betz 67:93bec0baf1de 309 *@}
Wolfgang Betz 67:93bec0baf1de 310 */
Wolfgang Betz 67:93bec0baf1de 311
Wolfgang Betz 67:93bec0baf1de 312
Wolfgang Betz 67:93bec0baf1de 313 /**
Wolfgang Betz 67:93bec0baf1de 314 *@}
Wolfgang Betz 67:93bec0baf1de 315 */
Wolfgang Betz 67:93bec0baf1de 316
Wolfgang Betz 67:93bec0baf1de 317
Wolfgang Betz 67:93bec0baf1de 318
Wolfgang Betz 67:93bec0baf1de 319
Wolfgang Betz 67:93bec0baf1de 320 /******************* (C) COPYRIGHT 2015 STMicroelectronics *****END OF FILE****/