ST
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).
libs/spirit1/SPIRIT1_Library/Src/SPIRIT_Csma.c@0:4fb29d9ee571, 2016-10-13 (annotated)
- Committer:
- Wolfgang Betz
- Date:
- Thu Oct 13 15:41:39 2016 +0200
- Revision:
- 0:4fb29d9ee571
First compiling version (without warnings)
Who changed what in which revision?
| User | Revision | Line number | New contents of line |
|---|---|---|---|
| Wolfgang Betz |
0:4fb29d9ee571 | 1 | /** |
| Wolfgang Betz |
0:4fb29d9ee571 | 2 | ****************************************************************************** |
| Wolfgang Betz |
0:4fb29d9ee571 | 3 | * @file SPIRIT_Csma.c |
| Wolfgang Betz |
0:4fb29d9ee571 | 4 | * @author VMA division - AMS |
| Wolfgang Betz |
0:4fb29d9ee571 | 5 | * @version 3.2.2 |
| Wolfgang Betz |
0:4fb29d9ee571 | 6 | * @date 08-July-2015 |
| Wolfgang Betz |
0:4fb29d9ee571 | 7 | * @brief Configuration and management of SPIRIT CSMA. |
| Wolfgang Betz |
0:4fb29d9ee571 | 8 | * @details |
| Wolfgang Betz |
0:4fb29d9ee571 | 9 | * @attention |
| Wolfgang Betz |
0:4fb29d9ee571 | 10 | * |
| Wolfgang Betz |
0:4fb29d9ee571 | 11 | * <h2><center>© COPYRIGHT(c) 2015 STMicroelectronics</center></h2> |
| Wolfgang Betz |
0:4fb29d9ee571 | 12 | * |
| Wolfgang Betz |
0:4fb29d9ee571 | 13 | * Redistribution and use in source and binary forms, with or without modification, |
| Wolfgang Betz |
0:4fb29d9ee571 | 14 | * are permitted provided that the following conditions are met: |
| Wolfgang Betz |
0:4fb29d9ee571 | 15 | * 1. Redistributions of source code must retain the above copyright notice, |
| Wolfgang Betz |
0:4fb29d9ee571 | 16 | * this list of conditions and the following disclaimer. |
| Wolfgang Betz |
0:4fb29d9ee571 | 17 | * 2. Redistributions in binary form must reproduce the above copyright notice, |
| Wolfgang Betz |
0:4fb29d9ee571 | 18 | * this list of conditions and the following disclaimer in the documentation |
| Wolfgang Betz |
0:4fb29d9ee571 | 19 | * and/or other materials provided with the distribution. |
| Wolfgang Betz |
0:4fb29d9ee571 | 20 | * 3. Neither the name of STMicroelectronics nor the names of its contributors |
| Wolfgang Betz |
0:4fb29d9ee571 | 21 | * may be used to endorse or promote products derived from this software |
| Wolfgang Betz |
0:4fb29d9ee571 | 22 | * without specific prior written permission. |
| Wolfgang Betz |
0:4fb29d9ee571 | 23 | * |
| Wolfgang Betz |
0:4fb29d9ee571 | 24 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
| Wolfgang Betz |
0:4fb29d9ee571 | 25 | * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| Wolfgang Betz |
0:4fb29d9ee571 | 26 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
| Wolfgang Betz |
0:4fb29d9ee571 | 27 | * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE |
| Wolfgang Betz |
0:4fb29d9ee571 | 28 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
| Wolfgang Betz |
0:4fb29d9ee571 | 29 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR |
| Wolfgang Betz |
0:4fb29d9ee571 | 30 | * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER |
| Wolfgang Betz |
0:4fb29d9ee571 | 31 | * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, |
| Wolfgang Betz |
0:4fb29d9ee571 | 32 | * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| Wolfgang Betz |
0:4fb29d9ee571 | 33 | * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| Wolfgang Betz |
0:4fb29d9ee571 | 34 | * |
| Wolfgang Betz |
0:4fb29d9ee571 | 35 | ****************************************************************************** |
| Wolfgang Betz |
0:4fb29d9ee571 | 36 | */ |
| Wolfgang Betz |
0:4fb29d9ee571 | 37 | |
| Wolfgang Betz |
0:4fb29d9ee571 | 38 | /* Includes ------------------------------------------------------------------*/ |
| Wolfgang Betz |
0:4fb29d9ee571 | 39 | #include "SPIRIT_Csma.h" |
| Wolfgang Betz |
0:4fb29d9ee571 | 40 | #include "MCU_Interface.h" |
| Wolfgang Betz |
0:4fb29d9ee571 | 41 | |
| Wolfgang Betz |
0:4fb29d9ee571 | 42 | |
| Wolfgang Betz |
0:4fb29d9ee571 | 43 | /** |
| Wolfgang Betz |
0:4fb29d9ee571 | 44 | * @addtogroup SPIRIT_Libraries |
| Wolfgang Betz |
0:4fb29d9ee571 | 45 | * @{ |
| Wolfgang Betz |
0:4fb29d9ee571 | 46 | */ |
| Wolfgang Betz |
0:4fb29d9ee571 | 47 | |
| Wolfgang Betz |
0:4fb29d9ee571 | 48 | |
| Wolfgang Betz |
0:4fb29d9ee571 | 49 | /** |
| Wolfgang Betz |
0:4fb29d9ee571 | 50 | * @addtogroup SPIRIT_Csma |
| Wolfgang Betz |
0:4fb29d9ee571 | 51 | * @{ |
| Wolfgang Betz |
0:4fb29d9ee571 | 52 | */ |
| Wolfgang Betz |
0:4fb29d9ee571 | 53 | |
| Wolfgang Betz |
0:4fb29d9ee571 | 54 | |
| Wolfgang Betz |
0:4fb29d9ee571 | 55 | /** |
| Wolfgang Betz |
0:4fb29d9ee571 | 56 | * @defgroup Csma_Private_TypesDefinitions CSMA Private TypesDefinitions |
| Wolfgang Betz |
0:4fb29d9ee571 | 57 | * @{ |
| Wolfgang Betz |
0:4fb29d9ee571 | 58 | */ |
| Wolfgang Betz |
0:4fb29d9ee571 | 59 | |
| Wolfgang Betz |
0:4fb29d9ee571 | 60 | |
| Wolfgang Betz |
0:4fb29d9ee571 | 61 | /** |
| Wolfgang Betz |
0:4fb29d9ee571 | 62 | *@} |
| Wolfgang Betz |
0:4fb29d9ee571 | 63 | */ |
| Wolfgang Betz |
0:4fb29d9ee571 | 64 | |
| Wolfgang Betz |
0:4fb29d9ee571 | 65 | |
| Wolfgang Betz |
0:4fb29d9ee571 | 66 | /** |
| Wolfgang Betz |
0:4fb29d9ee571 | 67 | * @defgroup Csma_Private_Defines CSMA Private Defines |
| Wolfgang Betz |
0:4fb29d9ee571 | 68 | * @{ |
| Wolfgang Betz |
0:4fb29d9ee571 | 69 | */ |
| Wolfgang Betz |
0:4fb29d9ee571 | 70 | |
| Wolfgang Betz |
0:4fb29d9ee571 | 71 | /** |
| Wolfgang Betz |
0:4fb29d9ee571 | 72 | *@} |
| Wolfgang Betz |
0:4fb29d9ee571 | 73 | */ |
| Wolfgang Betz |
0:4fb29d9ee571 | 74 | |
| Wolfgang Betz |
0:4fb29d9ee571 | 75 | |
| Wolfgang Betz |
0:4fb29d9ee571 | 76 | /** |
| Wolfgang Betz |
0:4fb29d9ee571 | 77 | * @defgroup Csma_Private_Macros CSMA Private Macros |
| Wolfgang Betz |
0:4fb29d9ee571 | 78 | * @{ |
| Wolfgang Betz |
0:4fb29d9ee571 | 79 | */ |
| Wolfgang Betz |
0:4fb29d9ee571 | 80 | |
| Wolfgang Betz |
0:4fb29d9ee571 | 81 | /** |
| Wolfgang Betz |
0:4fb29d9ee571 | 82 | *@} |
| Wolfgang Betz |
0:4fb29d9ee571 | 83 | */ |
| Wolfgang Betz |
0:4fb29d9ee571 | 84 | |
| Wolfgang Betz |
0:4fb29d9ee571 | 85 | |
| Wolfgang Betz |
0:4fb29d9ee571 | 86 | /** |
| Wolfgang Betz |
0:4fb29d9ee571 | 87 | * @defgroup Csma_Private_Variables CSMA Private Variables |
| Wolfgang Betz |
0:4fb29d9ee571 | 88 | * @{ |
| Wolfgang Betz |
0:4fb29d9ee571 | 89 | */ |
| Wolfgang Betz |
0:4fb29d9ee571 | 90 | |
| Wolfgang Betz |
0:4fb29d9ee571 | 91 | /** |
| Wolfgang Betz |
0:4fb29d9ee571 | 92 | *@} |
| Wolfgang Betz |
0:4fb29d9ee571 | 93 | */ |
| Wolfgang Betz |
0:4fb29d9ee571 | 94 | |
| Wolfgang Betz |
0:4fb29d9ee571 | 95 | |
| Wolfgang Betz |
0:4fb29d9ee571 | 96 | |
| Wolfgang Betz |
0:4fb29d9ee571 | 97 | /** |
| Wolfgang Betz |
0:4fb29d9ee571 | 98 | * @defgroup Csma_Private_FunctionPrototypes CSMA Private FunctionPrototypes |
| Wolfgang Betz |
0:4fb29d9ee571 | 99 | * @{ |
| Wolfgang Betz |
0:4fb29d9ee571 | 100 | */ |
| Wolfgang Betz |
0:4fb29d9ee571 | 101 | |
| Wolfgang Betz |
0:4fb29d9ee571 | 102 | /** |
| Wolfgang Betz |
0:4fb29d9ee571 | 103 | *@} |
| Wolfgang Betz |
0:4fb29d9ee571 | 104 | */ |
| Wolfgang Betz |
0:4fb29d9ee571 | 105 | |
| Wolfgang Betz |
0:4fb29d9ee571 | 106 | |
| Wolfgang Betz |
0:4fb29d9ee571 | 107 | /** |
| Wolfgang Betz |
0:4fb29d9ee571 | 108 | * @defgroup Csma_Private_Functions CSMA Private Functions |
| Wolfgang Betz |
0:4fb29d9ee571 | 109 | * @{ |
| Wolfgang Betz |
0:4fb29d9ee571 | 110 | */ |
| Wolfgang Betz |
0:4fb29d9ee571 | 111 | |
| Wolfgang Betz |
0:4fb29d9ee571 | 112 | |
| Wolfgang Betz |
0:4fb29d9ee571 | 113 | /** |
| Wolfgang Betz |
0:4fb29d9ee571 | 114 | * @brief Initializes the SPIRIT CSMA according to the specified parameters in the CsmaInit. |
| Wolfgang Betz |
0:4fb29d9ee571 | 115 | * @param pxCsmaInit Csma init structure. |
| Wolfgang Betz |
0:4fb29d9ee571 | 116 | * This parameter is a pointer to @ref CsmaInit. |
| Wolfgang Betz |
0:4fb29d9ee571 | 117 | * @retval None. |
| Wolfgang Betz |
0:4fb29d9ee571 | 118 | */ |
| Wolfgang Betz |
0:4fb29d9ee571 | 119 | void SpiritCsmaInit(CsmaInit* pxCsmaInit) |
| Wolfgang Betz |
0:4fb29d9ee571 | 120 | { |
| Wolfgang Betz |
0:4fb29d9ee571 | 121 | uint8_t tempRegValue[5]; |
| Wolfgang Betz |
0:4fb29d9ee571 | 122 | |
| Wolfgang Betz |
0:4fb29d9ee571 | 123 | /* Check the parameters */ |
| Wolfgang Betz |
0:4fb29d9ee571 | 124 | s_assert_param(IS_SPIRIT_FUNCTIONAL_STATE(pxCsmaInit->xCsmaPersistentMode)); |
| Wolfgang Betz |
0:4fb29d9ee571 | 125 | s_assert_param(IS_CCA_PERIOD(pxCsmaInit->xMultiplierTbit)); |
| Wolfgang Betz |
0:4fb29d9ee571 | 126 | s_assert_param(IS_CSMA_LENGTH(pxCsmaInit->xCcaLength)); |
| Wolfgang Betz |
0:4fb29d9ee571 | 127 | s_assert_param(IS_BU_COUNTER_SEED(pxCsmaInit->nBuCounterSeed)); |
| Wolfgang Betz |
0:4fb29d9ee571 | 128 | s_assert_param(IS_BU_PRESCALER(pxCsmaInit->cBuPrescaler)); |
| Wolfgang Betz |
0:4fb29d9ee571 | 129 | s_assert_param(IS_CMAX_NB(pxCsmaInit->cMaxNb)); |
| Wolfgang Betz |
0:4fb29d9ee571 | 130 | |
| Wolfgang Betz |
0:4fb29d9ee571 | 131 | /* CSMA BU counter seed (MSB) config */ |
| Wolfgang Betz |
0:4fb29d9ee571 | 132 | tempRegValue[0] = (uint8_t)(pxCsmaInit->nBuCounterSeed >> 8); |
| Wolfgang Betz |
0:4fb29d9ee571 | 133 | |
| Wolfgang Betz |
0:4fb29d9ee571 | 134 | /* CSMA BU counter seed (LSB) config */ |
| Wolfgang Betz |
0:4fb29d9ee571 | 135 | tempRegValue[1] = (uint8_t) pxCsmaInit->nBuCounterSeed; |
| Wolfgang Betz |
0:4fb29d9ee571 | 136 | |
| Wolfgang Betz |
0:4fb29d9ee571 | 137 | /* CSMA BU prescaler config and CCA period config */ |
| Wolfgang Betz |
0:4fb29d9ee571 | 138 | tempRegValue[2] = (pxCsmaInit->cBuPrescaler << 2) | pxCsmaInit->xMultiplierTbit; |
| Wolfgang Betz |
0:4fb29d9ee571 | 139 | |
| Wolfgang Betz |
0:4fb29d9ee571 | 140 | /* CSMA CCA length config and max number of back-off */ |
| Wolfgang Betz |
0:4fb29d9ee571 | 141 | tempRegValue[3] = (pxCsmaInit->xCcaLength | pxCsmaInit->cMaxNb); |
| Wolfgang Betz |
0:4fb29d9ee571 | 142 | |
| Wolfgang Betz |
0:4fb29d9ee571 | 143 | /* Reads the PROTOCOL1_BASE register value, to write the SEED_RELOAD and CSMA_PERS_ON fields */ |
| Wolfgang Betz |
0:4fb29d9ee571 | 144 | g_xStatus = SpiritSpiReadRegisters(PROTOCOL1_BASE, 1, &tempRegValue[4]); |
| Wolfgang Betz |
0:4fb29d9ee571 | 145 | |
| Wolfgang Betz |
0:4fb29d9ee571 | 146 | /* Writes the new value for persistent mode */ |
| Wolfgang Betz |
0:4fb29d9ee571 | 147 | if(pxCsmaInit->xCsmaPersistentMode==S_ENABLE) |
| Wolfgang Betz |
0:4fb29d9ee571 | 148 | { |
| Wolfgang Betz |
0:4fb29d9ee571 | 149 | tempRegValue[4] |= PROTOCOL1_CSMA_PERS_ON_MASK; |
| Wolfgang Betz |
0:4fb29d9ee571 | 150 | } |
| Wolfgang Betz |
0:4fb29d9ee571 | 151 | else |
| Wolfgang Betz |
0:4fb29d9ee571 | 152 | { |
| Wolfgang Betz |
0:4fb29d9ee571 | 153 | tempRegValue[4] &= ~PROTOCOL1_CSMA_PERS_ON_MASK; |
| Wolfgang Betz |
0:4fb29d9ee571 | 154 | } |
| Wolfgang Betz |
0:4fb29d9ee571 | 155 | |
| Wolfgang Betz |
0:4fb29d9ee571 | 156 | /* Writes PROTOCOL1_BASE register */ |
| Wolfgang Betz |
0:4fb29d9ee571 | 157 | g_xStatus = SpiritSpiWriteRegisters(PROTOCOL1_BASE, 1, &tempRegValue[4]); |
| Wolfgang Betz |
0:4fb29d9ee571 | 158 | |
| Wolfgang Betz |
0:4fb29d9ee571 | 159 | /* Writes CSMA_CONFIGx_BASE registers */ |
| Wolfgang Betz |
0:4fb29d9ee571 | 160 | g_xStatus = SpiritSpiWriteRegisters(CSMA_CONFIG3_BASE, 4, tempRegValue); |
| Wolfgang Betz |
0:4fb29d9ee571 | 161 | |
| Wolfgang Betz |
0:4fb29d9ee571 | 162 | } |
| Wolfgang Betz |
0:4fb29d9ee571 | 163 | |
| Wolfgang Betz |
0:4fb29d9ee571 | 164 | |
| Wolfgang Betz |
0:4fb29d9ee571 | 165 | /** |
| Wolfgang Betz |
0:4fb29d9ee571 | 166 | * @brief Returns the fitted structure CsmaInit starting from the registers values. |
| Wolfgang Betz |
0:4fb29d9ee571 | 167 | * @param pxCsmaInit Csma structure to be fitted. |
| Wolfgang Betz |
0:4fb29d9ee571 | 168 | * This parameter is a pointer to @ref CsmaInit. |
| Wolfgang Betz |
0:4fb29d9ee571 | 169 | * @retval None. |
| Wolfgang Betz |
0:4fb29d9ee571 | 170 | */ |
| Wolfgang Betz |
0:4fb29d9ee571 | 171 | void SpiritCsmaGetInfo(CsmaInit* pxCsmaInit) |
| Wolfgang Betz |
0:4fb29d9ee571 | 172 | { |
| Wolfgang Betz |
0:4fb29d9ee571 | 173 | uint8_t tempRegValue[5]; |
| Wolfgang Betz |
0:4fb29d9ee571 | 174 | |
| Wolfgang Betz |
0:4fb29d9ee571 | 175 | /* Reads PROTOCOL1_BASE register */ |
| Wolfgang Betz |
0:4fb29d9ee571 | 176 | g_xStatus = SpiritSpiReadRegisters(PROTOCOL1_BASE, 1, &tempRegValue[4]); |
| Wolfgang Betz |
0:4fb29d9ee571 | 177 | |
| Wolfgang Betz |
0:4fb29d9ee571 | 178 | /* Reads CSMA_CONFIGx_BASE registers */ |
| Wolfgang Betz |
0:4fb29d9ee571 | 179 | g_xStatus = SpiritSpiReadRegisters(CSMA_CONFIG3_BASE, 4, tempRegValue); |
| Wolfgang Betz |
0:4fb29d9ee571 | 180 | |
| Wolfgang Betz |
0:4fb29d9ee571 | 181 | /* Reads the bu counter seed */ |
| Wolfgang Betz |
0:4fb29d9ee571 | 182 | pxCsmaInit->nBuCounterSeed = (uint16_t)tempRegValue[1] | ((uint16_t)(tempRegValue[0] << 8)); |
| Wolfgang Betz |
0:4fb29d9ee571 | 183 | |
| Wolfgang Betz |
0:4fb29d9ee571 | 184 | /* Reads the bu prescaler */ |
| Wolfgang Betz |
0:4fb29d9ee571 | 185 | pxCsmaInit->cBuPrescaler = tempRegValue[2]>>2; |
| Wolfgang Betz |
0:4fb29d9ee571 | 186 | |
| Wolfgang Betz |
0:4fb29d9ee571 | 187 | /* Reads the Cca period */ |
| Wolfgang Betz |
0:4fb29d9ee571 | 188 | pxCsmaInit->xMultiplierTbit = (CcaPeriod)(tempRegValue[2] & 0x03); |
| Wolfgang Betz |
0:4fb29d9ee571 | 189 | |
| Wolfgang Betz |
0:4fb29d9ee571 | 190 | /* Reads the Cca length */ |
| Wolfgang Betz |
0:4fb29d9ee571 | 191 | pxCsmaInit->xCcaLength = (CsmaLength)(tempRegValue[3]&0xF0); |
| Wolfgang Betz |
0:4fb29d9ee571 | 192 | |
| Wolfgang Betz |
0:4fb29d9ee571 | 193 | /* Reads the max number of back off */ |
| Wolfgang Betz |
0:4fb29d9ee571 | 194 | pxCsmaInit->cMaxNb = tempRegValue[3] & 0x07; |
| Wolfgang Betz |
0:4fb29d9ee571 | 195 | |
| Wolfgang Betz |
0:4fb29d9ee571 | 196 | /* Reads the persistent mode enable bit */ |
| Wolfgang Betz |
0:4fb29d9ee571 | 197 | pxCsmaInit->xCsmaPersistentMode = (SpiritFunctionalState)((tempRegValue[4]>>1) & 0x01); |
| Wolfgang Betz |
0:4fb29d9ee571 | 198 | |
| Wolfgang Betz |
0:4fb29d9ee571 | 199 | } |
| Wolfgang Betz |
0:4fb29d9ee571 | 200 | |
| Wolfgang Betz |
0:4fb29d9ee571 | 201 | |
| Wolfgang Betz |
0:4fb29d9ee571 | 202 | /** |
| Wolfgang Betz |
0:4fb29d9ee571 | 203 | * @brief Enables or Disables the CSMA. |
| Wolfgang Betz |
0:4fb29d9ee571 | 204 | * @param xNewState the state of the CSMA mode. |
| Wolfgang Betz |
0:4fb29d9ee571 | 205 | * This parameter can be: S_ENABLE or S_DISABLE. |
| Wolfgang Betz |
0:4fb29d9ee571 | 206 | * @retval None. |
| Wolfgang Betz |
0:4fb29d9ee571 | 207 | */ |
| Wolfgang Betz |
0:4fb29d9ee571 | 208 | void SpiritCsma(SpiritFunctionalState xNewState) |
| Wolfgang Betz |
0:4fb29d9ee571 | 209 | { |
| Wolfgang Betz |
0:4fb29d9ee571 | 210 | uint8_t tempRegValue; |
| Wolfgang Betz |
0:4fb29d9ee571 | 211 | |
| Wolfgang Betz |
0:4fb29d9ee571 | 212 | /* Check the parameters */ |
| Wolfgang Betz |
0:4fb29d9ee571 | 213 | s_assert_param(IS_SPIRIT_FUNCTIONAL_STATE(xNewState)); |
| Wolfgang Betz |
0:4fb29d9ee571 | 214 | |
| Wolfgang Betz |
0:4fb29d9ee571 | 215 | /* Reads the PROTOCOL1 register value */ |
| Wolfgang Betz |
0:4fb29d9ee571 | 216 | g_xStatus = SpiritSpiReadRegisters(PROTOCOL1_BASE, 1, &tempRegValue); |
| Wolfgang Betz |
0:4fb29d9ee571 | 217 | |
| Wolfgang Betz |
0:4fb29d9ee571 | 218 | /* Sets or resets the CSMA enable bit */ |
| Wolfgang Betz |
0:4fb29d9ee571 | 219 | if(xNewState==S_ENABLE) |
| Wolfgang Betz |
0:4fb29d9ee571 | 220 | { |
| Wolfgang Betz |
0:4fb29d9ee571 | 221 | tempRegValue |= PROTOCOL1_CSMA_ON_MASK; |
| Wolfgang Betz |
0:4fb29d9ee571 | 222 | } |
| Wolfgang Betz |
0:4fb29d9ee571 | 223 | else |
| Wolfgang Betz |
0:4fb29d9ee571 | 224 | { |
| Wolfgang Betz |
0:4fb29d9ee571 | 225 | tempRegValue &= ~PROTOCOL1_CSMA_ON_MASK; |
| Wolfgang Betz |
0:4fb29d9ee571 | 226 | } |
| Wolfgang Betz |
0:4fb29d9ee571 | 227 | |
| Wolfgang Betz |
0:4fb29d9ee571 | 228 | /* Writes the new value on the PROTOCOL1 register */ |
| Wolfgang Betz |
0:4fb29d9ee571 | 229 | g_xStatus = SpiritSpiWriteRegisters(PROTOCOL1_BASE, 1, &tempRegValue); |
| Wolfgang Betz |
0:4fb29d9ee571 | 230 | |
| Wolfgang Betz |
0:4fb29d9ee571 | 231 | } |
| Wolfgang Betz |
0:4fb29d9ee571 | 232 | |
| Wolfgang Betz |
0:4fb29d9ee571 | 233 | /** |
| Wolfgang Betz |
0:4fb29d9ee571 | 234 | * @brief Gets the CSMA mode. Says if it is enabled or disabled. |
| Wolfgang Betz |
0:4fb29d9ee571 | 235 | * @param None. |
| Wolfgang Betz |
0:4fb29d9ee571 | 236 | * @retval SpiritFunctionalState: CSMA mode. |
| Wolfgang Betz |
0:4fb29d9ee571 | 237 | */ |
| Wolfgang Betz |
0:4fb29d9ee571 | 238 | SpiritFunctionalState SpiritCsmaGetCsma(void) |
| Wolfgang Betz |
0:4fb29d9ee571 | 239 | { |
| Wolfgang Betz |
0:4fb29d9ee571 | 240 | uint8_t tempRegValue; |
| Wolfgang Betz |
0:4fb29d9ee571 | 241 | |
| Wolfgang Betz |
0:4fb29d9ee571 | 242 | /* Reads the PROTOCOL1 register value */ |
| Wolfgang Betz |
0:4fb29d9ee571 | 243 | g_xStatus = SpiritSpiReadRegisters(PROTOCOL1_BASE, 1, &tempRegValue); |
| Wolfgang Betz |
0:4fb29d9ee571 | 244 | |
| Wolfgang Betz |
0:4fb29d9ee571 | 245 | /* Return if set or reset */ |
| Wolfgang Betz |
0:4fb29d9ee571 | 246 | if(tempRegValue & PROTOCOL1_CSMA_ON_MASK) |
| Wolfgang Betz |
0:4fb29d9ee571 | 247 | { |
| Wolfgang Betz |
0:4fb29d9ee571 | 248 | return S_ENABLE; |
| Wolfgang Betz |
0:4fb29d9ee571 | 249 | } |
| Wolfgang Betz |
0:4fb29d9ee571 | 250 | else |
| Wolfgang Betz |
0:4fb29d9ee571 | 251 | { |
| Wolfgang Betz |
0:4fb29d9ee571 | 252 | return S_DISABLE; |
| Wolfgang Betz |
0:4fb29d9ee571 | 253 | } |
| Wolfgang Betz |
0:4fb29d9ee571 | 254 | |
| Wolfgang Betz |
0:4fb29d9ee571 | 255 | } |
| Wolfgang Betz |
0:4fb29d9ee571 | 256 | |
| Wolfgang Betz |
0:4fb29d9ee571 | 257 | /** |
| Wolfgang Betz |
0:4fb29d9ee571 | 258 | * @brief Enables or Disables the persistent CSMA mode. |
| Wolfgang Betz |
0:4fb29d9ee571 | 259 | * @param xNewState the state of the persistent CSMA mode. |
| Wolfgang Betz |
0:4fb29d9ee571 | 260 | * This parameter can be: S_ENABLE or S_DISABLE. |
| Wolfgang Betz |
0:4fb29d9ee571 | 261 | * @retval None. |
| Wolfgang Betz |
0:4fb29d9ee571 | 262 | */ |
| Wolfgang Betz |
0:4fb29d9ee571 | 263 | void SpiritCsmaPersistentMode(SpiritFunctionalState xNewState) |
| Wolfgang Betz |
0:4fb29d9ee571 | 264 | { |
| Wolfgang Betz |
0:4fb29d9ee571 | 265 | uint8_t tempRegValue; |
| Wolfgang Betz |
0:4fb29d9ee571 | 266 | |
| Wolfgang Betz |
0:4fb29d9ee571 | 267 | /* Check the parameters */ |
| Wolfgang Betz |
0:4fb29d9ee571 | 268 | s_assert_param(IS_SPIRIT_FUNCTIONAL_STATE(xNewState)); |
| Wolfgang Betz |
0:4fb29d9ee571 | 269 | |
| Wolfgang Betz |
0:4fb29d9ee571 | 270 | /* Reads the PROTOCOL1 register value */ |
| Wolfgang Betz |
0:4fb29d9ee571 | 271 | g_xStatus = SpiritSpiReadRegisters(PROTOCOL1_BASE, 1, &tempRegValue); |
| Wolfgang Betz |
0:4fb29d9ee571 | 272 | |
| Wolfgang Betz |
0:4fb29d9ee571 | 273 | /* Enables/disables the CSMA persistent mode */ |
| Wolfgang Betz |
0:4fb29d9ee571 | 274 | if(xNewState==S_ENABLE) |
| Wolfgang Betz |
0:4fb29d9ee571 | 275 | { |
| Wolfgang Betz |
0:4fb29d9ee571 | 276 | tempRegValue |= PROTOCOL1_CSMA_PERS_ON_MASK; |
| Wolfgang Betz |
0:4fb29d9ee571 | 277 | } |
| Wolfgang Betz |
0:4fb29d9ee571 | 278 | else |
| Wolfgang Betz |
0:4fb29d9ee571 | 279 | { |
| Wolfgang Betz |
0:4fb29d9ee571 | 280 | tempRegValue &= ~PROTOCOL1_CSMA_PERS_ON_MASK; |
| Wolfgang Betz |
0:4fb29d9ee571 | 281 | } |
| Wolfgang Betz |
0:4fb29d9ee571 | 282 | |
| Wolfgang Betz |
0:4fb29d9ee571 | 283 | /* Writes the new vaue on the PROTOCOL1 register */ |
| Wolfgang Betz |
0:4fb29d9ee571 | 284 | g_xStatus = SpiritSpiWriteRegisters(PROTOCOL1_BASE, 1, &tempRegValue); |
| Wolfgang Betz |
0:4fb29d9ee571 | 285 | |
| Wolfgang Betz |
0:4fb29d9ee571 | 286 | } |
| Wolfgang Betz |
0:4fb29d9ee571 | 287 | |
| Wolfgang Betz |
0:4fb29d9ee571 | 288 | |
| Wolfgang Betz |
0:4fb29d9ee571 | 289 | /** |
| Wolfgang Betz |
0:4fb29d9ee571 | 290 | * @brief Gets the persistent CSMA mode. |
| Wolfgang Betz |
0:4fb29d9ee571 | 291 | * @param None. |
| Wolfgang Betz |
0:4fb29d9ee571 | 292 | * @retval SpiritFunctionalState: CSMA persistent mode. |
| Wolfgang Betz |
0:4fb29d9ee571 | 293 | */ |
| Wolfgang Betz |
0:4fb29d9ee571 | 294 | SpiritFunctionalState SpiritCsmaGetPersistentMode(void) |
| Wolfgang Betz |
0:4fb29d9ee571 | 295 | { |
| Wolfgang Betz |
0:4fb29d9ee571 | 296 | uint8_t tempRegValue; |
| Wolfgang Betz |
0:4fb29d9ee571 | 297 | |
| Wolfgang Betz |
0:4fb29d9ee571 | 298 | /* Reads the PROTOCOL1 register value */ |
| Wolfgang Betz |
0:4fb29d9ee571 | 299 | g_xStatus = SpiritSpiReadRegisters(PROTOCOL1_BASE, 1, &tempRegValue); |
| Wolfgang Betz |
0:4fb29d9ee571 | 300 | |
| Wolfgang Betz |
0:4fb29d9ee571 | 301 | /* Return if set or reset */ |
| Wolfgang Betz |
0:4fb29d9ee571 | 302 | if(tempRegValue & PROTOCOL1_CSMA_PERS_ON_MASK) |
| Wolfgang Betz |
0:4fb29d9ee571 | 303 | { |
| Wolfgang Betz |
0:4fb29d9ee571 | 304 | return S_ENABLE; |
| Wolfgang Betz |
0:4fb29d9ee571 | 305 | } |
| Wolfgang Betz |
0:4fb29d9ee571 | 306 | else |
| Wolfgang Betz |
0:4fb29d9ee571 | 307 | { |
| Wolfgang Betz |
0:4fb29d9ee571 | 308 | return S_DISABLE; |
| Wolfgang Betz |
0:4fb29d9ee571 | 309 | } |
| Wolfgang Betz |
0:4fb29d9ee571 | 310 | |
| Wolfgang Betz |
0:4fb29d9ee571 | 311 | } |
| Wolfgang Betz |
0:4fb29d9ee571 | 312 | |
| Wolfgang Betz |
0:4fb29d9ee571 | 313 | |
| Wolfgang Betz |
0:4fb29d9ee571 | 314 | /** |
| Wolfgang Betz |
0:4fb29d9ee571 | 315 | * @brief Enables or Disables the seed reload mode (if enabled it reloads the back-off generator seed using the value written in the BU_COUNTER_SEED register). |
| Wolfgang Betz |
0:4fb29d9ee571 | 316 | * @param xNewState the state of the seed reload mode. |
| Wolfgang Betz |
0:4fb29d9ee571 | 317 | * This parameter can be: S_ENABLE or S_DISABLE. |
| Wolfgang Betz |
0:4fb29d9ee571 | 318 | * @retval None. |
| Wolfgang Betz |
0:4fb29d9ee571 | 319 | */ |
| Wolfgang Betz |
0:4fb29d9ee571 | 320 | void SpiritCsmaSeedReloadMode(SpiritFunctionalState xNewState) |
| Wolfgang Betz |
0:4fb29d9ee571 | 321 | { |
| Wolfgang Betz |
0:4fb29d9ee571 | 322 | uint8_t tempRegValue; |
| Wolfgang Betz |
0:4fb29d9ee571 | 323 | |
| Wolfgang Betz |
0:4fb29d9ee571 | 324 | /* Check the parameters */ |
| Wolfgang Betz |
0:4fb29d9ee571 | 325 | s_assert_param(IS_SPIRIT_FUNCTIONAL_STATE(xNewState)); |
| Wolfgang Betz |
0:4fb29d9ee571 | 326 | |
| Wolfgang Betz |
0:4fb29d9ee571 | 327 | /* Reads the PROTOCOL1 register value */ |
| Wolfgang Betz |
0:4fb29d9ee571 | 328 | g_xStatus = SpiritSpiReadRegisters(PROTOCOL1_BASE, 1, &tempRegValue); |
| Wolfgang Betz |
0:4fb29d9ee571 | 329 | |
| Wolfgang Betz |
0:4fb29d9ee571 | 330 | /* Enables/disables the seed reload mode */ |
| Wolfgang Betz |
0:4fb29d9ee571 | 331 | if(xNewState==S_ENABLE) |
| Wolfgang Betz |
0:4fb29d9ee571 | 332 | { |
| Wolfgang Betz |
0:4fb29d9ee571 | 333 | tempRegValue |= PROTOCOL1_SEED_RELOAD_MASK; |
| Wolfgang Betz |
0:4fb29d9ee571 | 334 | } |
| Wolfgang Betz |
0:4fb29d9ee571 | 335 | else |
| Wolfgang Betz |
0:4fb29d9ee571 | 336 | { |
| Wolfgang Betz |
0:4fb29d9ee571 | 337 | tempRegValue &= ~PROTOCOL1_SEED_RELOAD_MASK; |
| Wolfgang Betz |
0:4fb29d9ee571 | 338 | } |
| Wolfgang Betz |
0:4fb29d9ee571 | 339 | |
| Wolfgang Betz |
0:4fb29d9ee571 | 340 | /* Writes the new value on the PROTOCOL1 register */ |
| Wolfgang Betz |
0:4fb29d9ee571 | 341 | g_xStatus = SpiritSpiWriteRegisters(PROTOCOL1_BASE, 1, &tempRegValue); |
| Wolfgang Betz |
0:4fb29d9ee571 | 342 | |
| Wolfgang Betz |
0:4fb29d9ee571 | 343 | } |
| Wolfgang Betz |
0:4fb29d9ee571 | 344 | |
| Wolfgang Betz |
0:4fb29d9ee571 | 345 | |
| Wolfgang Betz |
0:4fb29d9ee571 | 346 | /** |
| Wolfgang Betz |
0:4fb29d9ee571 | 347 | * @brief Gets the seed reload mode. |
| Wolfgang Betz |
0:4fb29d9ee571 | 348 | * @param None. |
| Wolfgang Betz |
0:4fb29d9ee571 | 349 | * @retval SpiritFunctionalState: CSMA seed reload mode. |
| Wolfgang Betz |
0:4fb29d9ee571 | 350 | */ |
| Wolfgang Betz |
0:4fb29d9ee571 | 351 | SpiritFunctionalState SpiritCsmaGetSeedReloadMode(void) |
| Wolfgang Betz |
0:4fb29d9ee571 | 352 | { |
| Wolfgang Betz |
0:4fb29d9ee571 | 353 | uint8_t tempRegValue; |
| Wolfgang Betz |
0:4fb29d9ee571 | 354 | |
| Wolfgang Betz |
0:4fb29d9ee571 | 355 | /* Reads the PROTOCOL1 register value */ |
| Wolfgang Betz |
0:4fb29d9ee571 | 356 | g_xStatus = SpiritSpiReadRegisters(PROTOCOL1_BASE, 1, &tempRegValue); |
| Wolfgang Betz |
0:4fb29d9ee571 | 357 | |
| Wolfgang Betz |
0:4fb29d9ee571 | 358 | /* Return if set or reset */ |
| Wolfgang Betz |
0:4fb29d9ee571 | 359 | if(tempRegValue & PROTOCOL1_SEED_RELOAD_MASK) |
| Wolfgang Betz |
0:4fb29d9ee571 | 360 | { |
| Wolfgang Betz |
0:4fb29d9ee571 | 361 | return S_ENABLE; |
| Wolfgang Betz |
0:4fb29d9ee571 | 362 | } |
| Wolfgang Betz |
0:4fb29d9ee571 | 363 | else |
| Wolfgang Betz |
0:4fb29d9ee571 | 364 | { |
| Wolfgang Betz |
0:4fb29d9ee571 | 365 | return S_DISABLE; |
| Wolfgang Betz |
0:4fb29d9ee571 | 366 | } |
| Wolfgang Betz |
0:4fb29d9ee571 | 367 | } |
| Wolfgang Betz |
0:4fb29d9ee571 | 368 | |
| Wolfgang Betz |
0:4fb29d9ee571 | 369 | |
| Wolfgang Betz |
0:4fb29d9ee571 | 370 | /** |
| Wolfgang Betz |
0:4fb29d9ee571 | 371 | * @brief Sets the BU counter seed (BU_COUNTER_SEED register). The CSMA back off time is given by the formula: BO = rand(2^NB)*BU. |
| Wolfgang Betz |
0:4fb29d9ee571 | 372 | * @param nBuCounterSeed seed of the random number generator used to apply the BBE algorithm. |
| Wolfgang Betz |
0:4fb29d9ee571 | 373 | * This parameter is an uint16_t. |
| Wolfgang Betz |
0:4fb29d9ee571 | 374 | * @retval None. |
| Wolfgang Betz |
0:4fb29d9ee571 | 375 | */ |
| Wolfgang Betz |
0:4fb29d9ee571 | 376 | void SpiritCsmaSetBuCounterSeed(uint16_t nBuCounterSeed) |
| Wolfgang Betz |
0:4fb29d9ee571 | 377 | { |
| Wolfgang Betz |
0:4fb29d9ee571 | 378 | uint8_t tempRegValue[2]; |
| Wolfgang Betz |
0:4fb29d9ee571 | 379 | |
| Wolfgang Betz |
0:4fb29d9ee571 | 380 | /* Check parameters */ |
| Wolfgang Betz |
0:4fb29d9ee571 | 381 | s_assert_param(IS_BU_COUNTER_SEED(nBuCounterSeed)); |
| Wolfgang Betz |
0:4fb29d9ee571 | 382 | |
| Wolfgang Betz |
0:4fb29d9ee571 | 383 | /* Build value (MSB)*/ |
| Wolfgang Betz |
0:4fb29d9ee571 | 384 | tempRegValue[0]=(uint8_t)(nBuCounterSeed>>8); |
| Wolfgang Betz |
0:4fb29d9ee571 | 385 | /* Build value (LSB) */ |
| Wolfgang Betz |
0:4fb29d9ee571 | 386 | tempRegValue[1]=(uint8_t)nBuCounterSeed; |
| Wolfgang Betz |
0:4fb29d9ee571 | 387 | |
| Wolfgang Betz |
0:4fb29d9ee571 | 388 | /* Writes the CSMA_CONFIG3 registers */ |
| Wolfgang Betz |
0:4fb29d9ee571 | 389 | g_xStatus = SpiritSpiWriteRegisters(CSMA_CONFIG3_BASE, 2, tempRegValue); |
| Wolfgang Betz |
0:4fb29d9ee571 | 390 | |
| Wolfgang Betz |
0:4fb29d9ee571 | 391 | } |
| Wolfgang Betz |
0:4fb29d9ee571 | 392 | |
| Wolfgang Betz |
0:4fb29d9ee571 | 393 | /** |
| Wolfgang Betz |
0:4fb29d9ee571 | 394 | * @brief Returns the BU counter seed (BU_COUNTER_SEED register). |
| Wolfgang Betz |
0:4fb29d9ee571 | 395 | * @param None. |
| Wolfgang Betz |
0:4fb29d9ee571 | 396 | * @retval uint16_t Seed of the random number generator used to apply the BBE algorithm. |
| Wolfgang Betz |
0:4fb29d9ee571 | 397 | */ |
| Wolfgang Betz |
0:4fb29d9ee571 | 398 | uint16_t SpiritCsmaGetBuCounterSeed(void) |
| Wolfgang Betz |
0:4fb29d9ee571 | 399 | { |
| Wolfgang Betz |
0:4fb29d9ee571 | 400 | uint8_t tempRegValue[2]; |
| Wolfgang Betz |
0:4fb29d9ee571 | 401 | |
| Wolfgang Betz |
0:4fb29d9ee571 | 402 | /* Reads the CSMA_CONFIGx registers value */ |
| Wolfgang Betz |
0:4fb29d9ee571 | 403 | g_xStatus = SpiritSpiReadRegisters(CSMA_CONFIG3_BASE, 2, tempRegValue); |
| Wolfgang Betz |
0:4fb29d9ee571 | 404 | |
| Wolfgang Betz |
0:4fb29d9ee571 | 405 | /* Build the counter seed and return it */ |
| Wolfgang Betz |
0:4fb29d9ee571 | 406 | return ((uint16_t)tempRegValue[1] + (((uint16_t)tempRegValue[0])<<8)); |
| Wolfgang Betz |
0:4fb29d9ee571 | 407 | |
| Wolfgang Betz |
0:4fb29d9ee571 | 408 | } |
| Wolfgang Betz |
0:4fb29d9ee571 | 409 | |
| Wolfgang Betz |
0:4fb29d9ee571 | 410 | |
| Wolfgang Betz |
0:4fb29d9ee571 | 411 | /** |
| Wolfgang Betz |
0:4fb29d9ee571 | 412 | * @brief Sets the BU prescaler. The CSMA back off time is given by the formula: BO = rand(2^NB)*BU. |
| Wolfgang Betz |
0:4fb29d9ee571 | 413 | * @param cBuPrescaler used to program the back-off unit BU. |
| Wolfgang Betz |
0:4fb29d9ee571 | 414 | * This parameter is an uint8_t. |
| Wolfgang Betz |
0:4fb29d9ee571 | 415 | * @retval None. |
| Wolfgang Betz |
0:4fb29d9ee571 | 416 | */ |
| Wolfgang Betz |
0:4fb29d9ee571 | 417 | void SpiritCsmaSetBuPrescaler(uint8_t cBuPrescaler) |
| Wolfgang Betz |
0:4fb29d9ee571 | 418 | { |
| Wolfgang Betz |
0:4fb29d9ee571 | 419 | uint8_t tempRegValue; |
| Wolfgang Betz |
0:4fb29d9ee571 | 420 | |
| Wolfgang Betz |
0:4fb29d9ee571 | 421 | /* Check parameters */ |
| Wolfgang Betz |
0:4fb29d9ee571 | 422 | s_assert_param(IS_BU_PRESCALER(cBuPrescaler)); |
| Wolfgang Betz |
0:4fb29d9ee571 | 423 | |
| Wolfgang Betz |
0:4fb29d9ee571 | 424 | /* Reads the CSMA_CONFIG1 register value */ |
| Wolfgang Betz |
0:4fb29d9ee571 | 425 | g_xStatus = SpiritSpiReadRegisters(CSMA_CONFIG1_BASE, 1, &tempRegValue); |
| Wolfgang Betz |
0:4fb29d9ee571 | 426 | |
| Wolfgang Betz |
0:4fb29d9ee571 | 427 | /* Build the new value for the BU prescaler */ |
| Wolfgang Betz |
0:4fb29d9ee571 | 428 | tempRegValue &= 0x03; |
| Wolfgang Betz |
0:4fb29d9ee571 | 429 | tempRegValue |= (cBuPrescaler<<2); |
| Wolfgang Betz |
0:4fb29d9ee571 | 430 | |
| Wolfgang Betz |
0:4fb29d9ee571 | 431 | /* Writes the new value on the CSMA_CONFIG1_BASE register */ |
| Wolfgang Betz |
0:4fb29d9ee571 | 432 | g_xStatus = SpiritSpiWriteRegisters(CSMA_CONFIG1_BASE, 1, &tempRegValue); |
| Wolfgang Betz |
0:4fb29d9ee571 | 433 | |
| Wolfgang Betz |
0:4fb29d9ee571 | 434 | } |
| Wolfgang Betz |
0:4fb29d9ee571 | 435 | |
| Wolfgang Betz |
0:4fb29d9ee571 | 436 | |
| Wolfgang Betz |
0:4fb29d9ee571 | 437 | /** |
| Wolfgang Betz |
0:4fb29d9ee571 | 438 | * @brief Returns the BU prescaler. |
| Wolfgang Betz |
0:4fb29d9ee571 | 439 | * @param None. |
| Wolfgang Betz |
0:4fb29d9ee571 | 440 | * @retval uint8_t Value back-off unit (BU). |
| Wolfgang Betz |
0:4fb29d9ee571 | 441 | */ |
| Wolfgang Betz |
0:4fb29d9ee571 | 442 | uint8_t SpiritCsmaGetBuPrescaler(void) |
| Wolfgang Betz |
0:4fb29d9ee571 | 443 | { |
| Wolfgang Betz |
0:4fb29d9ee571 | 444 | uint8_t tempRegValue; |
| Wolfgang Betz |
0:4fb29d9ee571 | 445 | |
| Wolfgang Betz |
0:4fb29d9ee571 | 446 | /* Reads the CSMA_CONFIG1 register value */ |
| Wolfgang Betz |
0:4fb29d9ee571 | 447 | g_xStatus = SpiritSpiReadRegisters(CSMA_CONFIG1_BASE, 1, &tempRegValue); |
| Wolfgang Betz |
0:4fb29d9ee571 | 448 | |
| Wolfgang Betz |
0:4fb29d9ee571 | 449 | /* Build and return the BU prescaler value */ |
| Wolfgang Betz |
0:4fb29d9ee571 | 450 | return (tempRegValue >> 2); |
| Wolfgang Betz |
0:4fb29d9ee571 | 451 | |
| Wolfgang Betz |
0:4fb29d9ee571 | 452 | } |
| Wolfgang Betz |
0:4fb29d9ee571 | 453 | |
| Wolfgang Betz |
0:4fb29d9ee571 | 454 | |
| Wolfgang Betz |
0:4fb29d9ee571 | 455 | /** |
| Wolfgang Betz |
0:4fb29d9ee571 | 456 | * @brief Sets the CCA period. |
| Wolfgang Betz |
0:4fb29d9ee571 | 457 | * @param xMultiplierTbit value of CCA period to store. |
| Wolfgang Betz |
0:4fb29d9ee571 | 458 | * This parameter can be a value of @ref CcaPeriod. |
| Wolfgang Betz |
0:4fb29d9ee571 | 459 | * @retval None. |
| Wolfgang Betz |
0:4fb29d9ee571 | 460 | */ |
| Wolfgang Betz |
0:4fb29d9ee571 | 461 | void SpiritCsmaSetCcaPeriod(CcaPeriod xMultiplierTbit) |
| Wolfgang Betz |
0:4fb29d9ee571 | 462 | { |
| Wolfgang Betz |
0:4fb29d9ee571 | 463 | uint8_t tempRegValue; |
| Wolfgang Betz |
0:4fb29d9ee571 | 464 | |
| Wolfgang Betz |
0:4fb29d9ee571 | 465 | /* Check the parameters */ |
| Wolfgang Betz |
0:4fb29d9ee571 | 466 | s_assert_param(IS_CCA_PERIOD(xMultiplierTbit)); |
| Wolfgang Betz |
0:4fb29d9ee571 | 467 | |
| Wolfgang Betz |
0:4fb29d9ee571 | 468 | /* Reads the CSMA_CONFIG1 register value */ |
| Wolfgang Betz |
0:4fb29d9ee571 | 469 | g_xStatus = SpiritSpiReadRegisters(CSMA_CONFIG1_BASE, 1, &tempRegValue); |
| Wolfgang Betz |
0:4fb29d9ee571 | 470 | |
| Wolfgang Betz |
0:4fb29d9ee571 | 471 | /* Build the new value setting the the CCA period */ |
| Wolfgang Betz |
0:4fb29d9ee571 | 472 | tempRegValue &= 0xFC; |
| Wolfgang Betz |
0:4fb29d9ee571 | 473 | tempRegValue |= xMultiplierTbit; |
| Wolfgang Betz |
0:4fb29d9ee571 | 474 | |
| Wolfgang Betz |
0:4fb29d9ee571 | 475 | /* Writes the new value on the CSMA_CONFIG1 register */ |
| Wolfgang Betz |
0:4fb29d9ee571 | 476 | g_xStatus = SpiritSpiWriteRegisters(CSMA_CONFIG1_BASE, 1, &tempRegValue); |
| Wolfgang Betz |
0:4fb29d9ee571 | 477 | |
| Wolfgang Betz |
0:4fb29d9ee571 | 478 | } |
| Wolfgang Betz |
0:4fb29d9ee571 | 479 | |
| Wolfgang Betz |
0:4fb29d9ee571 | 480 | |
| Wolfgang Betz |
0:4fb29d9ee571 | 481 | /** |
| Wolfgang Betz |
0:4fb29d9ee571 | 482 | * @brief Returns the CCA period. |
| Wolfgang Betz |
0:4fb29d9ee571 | 483 | * @param None. |
| Wolfgang Betz |
0:4fb29d9ee571 | 484 | * @retval CcaPeriod CCA period. |
| Wolfgang Betz |
0:4fb29d9ee571 | 485 | */ |
| Wolfgang Betz |
0:4fb29d9ee571 | 486 | CcaPeriod SpiritCsmaGetCcaPeriod(void) |
| Wolfgang Betz |
0:4fb29d9ee571 | 487 | { |
| Wolfgang Betz |
0:4fb29d9ee571 | 488 | uint8_t tempRegValue; |
| Wolfgang Betz |
0:4fb29d9ee571 | 489 | |
| Wolfgang Betz |
0:4fb29d9ee571 | 490 | /* Reads the CSMA_CONFIG1 register value */ |
| Wolfgang Betz |
0:4fb29d9ee571 | 491 | g_xStatus = SpiritSpiReadRegisters(CSMA_CONFIG1_BASE, 1, &tempRegValue); |
| Wolfgang Betz |
0:4fb29d9ee571 | 492 | |
| Wolfgang Betz |
0:4fb29d9ee571 | 493 | /* Build and return the CCA period value */ |
| Wolfgang Betz |
0:4fb29d9ee571 | 494 | return (CcaPeriod)(tempRegValue & 0x03); |
| Wolfgang Betz |
0:4fb29d9ee571 | 495 | |
| Wolfgang Betz |
0:4fb29d9ee571 | 496 | } |
| Wolfgang Betz |
0:4fb29d9ee571 | 497 | |
| Wolfgang Betz |
0:4fb29d9ee571 | 498 | |
| Wolfgang Betz |
0:4fb29d9ee571 | 499 | /** |
| Wolfgang Betz |
0:4fb29d9ee571 | 500 | * @brief Sets the CCA length. |
| Wolfgang Betz |
0:4fb29d9ee571 | 501 | * @param xCcaLength the CCA length (a value between 1 and 15 that multiplies the CCA period). |
| Wolfgang Betz |
0:4fb29d9ee571 | 502 | * This parameter can be any value of @ref CsmaLength. |
| Wolfgang Betz |
0:4fb29d9ee571 | 503 | * @retval None. |
| Wolfgang Betz |
0:4fb29d9ee571 | 504 | */ |
| Wolfgang Betz |
0:4fb29d9ee571 | 505 | void SpiritCsmaSetCcaLength(CsmaLength xCcaLength) |
| Wolfgang Betz |
0:4fb29d9ee571 | 506 | { |
| Wolfgang Betz |
0:4fb29d9ee571 | 507 | uint8_t tempRegValue; |
| Wolfgang Betz |
0:4fb29d9ee571 | 508 | |
| Wolfgang Betz |
0:4fb29d9ee571 | 509 | /* Check the parameters */ |
| Wolfgang Betz |
0:4fb29d9ee571 | 510 | s_assert_param(IS_CSMA_LENGTH(xCcaLength)); |
| Wolfgang Betz |
0:4fb29d9ee571 | 511 | |
| Wolfgang Betz |
0:4fb29d9ee571 | 512 | /* Reads the CSMA_CONFIG0 register value */ |
| Wolfgang Betz |
0:4fb29d9ee571 | 513 | g_xStatus = SpiritSpiReadRegisters(CSMA_CONFIG0_BASE, 1, &tempRegValue); |
| Wolfgang Betz |
0:4fb29d9ee571 | 514 | |
| Wolfgang Betz |
0:4fb29d9ee571 | 515 | /* Build the value of CCA length to be set */ |
| Wolfgang Betz |
0:4fb29d9ee571 | 516 | tempRegValue &= 0x0F; |
| Wolfgang Betz |
0:4fb29d9ee571 | 517 | tempRegValue |= xCcaLength; |
| Wolfgang Betz |
0:4fb29d9ee571 | 518 | |
| Wolfgang Betz |
0:4fb29d9ee571 | 519 | /* Writes the new value on the CSMA_CONFIG0 register */ |
| Wolfgang Betz |
0:4fb29d9ee571 | 520 | g_xStatus = SpiritSpiWriteRegisters(CSMA_CONFIG0_BASE, 1, &tempRegValue); |
| Wolfgang Betz |
0:4fb29d9ee571 | 521 | |
| Wolfgang Betz |
0:4fb29d9ee571 | 522 | } |
| Wolfgang Betz |
0:4fb29d9ee571 | 523 | |
| Wolfgang Betz |
0:4fb29d9ee571 | 524 | |
| Wolfgang Betz |
0:4fb29d9ee571 | 525 | /** |
| Wolfgang Betz |
0:4fb29d9ee571 | 526 | * @brief Returns the CCA length. |
| Wolfgang Betz |
0:4fb29d9ee571 | 527 | * @param None. |
| Wolfgang Betz |
0:4fb29d9ee571 | 528 | * @retval uint8_t CCA length. |
| Wolfgang Betz |
0:4fb29d9ee571 | 529 | */ |
| Wolfgang Betz |
0:4fb29d9ee571 | 530 | uint8_t SpiritCsmaGetCcaLength(void) |
| Wolfgang Betz |
0:4fb29d9ee571 | 531 | { |
| Wolfgang Betz |
0:4fb29d9ee571 | 532 | uint8_t tempRegValue; |
| Wolfgang Betz |
0:4fb29d9ee571 | 533 | |
| Wolfgang Betz |
0:4fb29d9ee571 | 534 | /* Reads the CSMA_CONFIG0 register value */ |
| Wolfgang Betz |
0:4fb29d9ee571 | 535 | g_xStatus = SpiritSpiReadRegisters(CSMA_CONFIG0_BASE, 1, &tempRegValue); |
| Wolfgang Betz |
0:4fb29d9ee571 | 536 | |
| Wolfgang Betz |
0:4fb29d9ee571 | 537 | /* Build and return the CCA length */ |
| Wolfgang Betz |
0:4fb29d9ee571 | 538 | return tempRegValue >> 4; |
| Wolfgang Betz |
0:4fb29d9ee571 | 539 | |
| Wolfgang Betz |
0:4fb29d9ee571 | 540 | } |
| Wolfgang Betz |
0:4fb29d9ee571 | 541 | |
| Wolfgang Betz |
0:4fb29d9ee571 | 542 | |
| Wolfgang Betz |
0:4fb29d9ee571 | 543 | /** |
| Wolfgang Betz |
0:4fb29d9ee571 | 544 | * @brief Sets the max number of back-off. If reached Spirit stops the transmission. |
| Wolfgang Betz |
0:4fb29d9ee571 | 545 | * @param cMaxNb the max number of back-off. |
| Wolfgang Betz |
0:4fb29d9ee571 | 546 | * This parameter is an uint8_t. |
| Wolfgang Betz |
0:4fb29d9ee571 | 547 | * @retval None. |
| Wolfgang Betz |
0:4fb29d9ee571 | 548 | */ |
| Wolfgang Betz |
0:4fb29d9ee571 | 549 | void SpiritCsmaSetMaxNumberBackoff(uint8_t cMaxNb) |
| Wolfgang Betz |
0:4fb29d9ee571 | 550 | { |
| Wolfgang Betz |
0:4fb29d9ee571 | 551 | uint8_t tempRegValue; |
| Wolfgang Betz |
0:4fb29d9ee571 | 552 | |
| Wolfgang Betz |
0:4fb29d9ee571 | 553 | /* Check the parameters */ |
| Wolfgang Betz |
0:4fb29d9ee571 | 554 | s_assert_param(IS_CMAX_NB(cMaxNb)); |
| Wolfgang Betz |
0:4fb29d9ee571 | 555 | |
| Wolfgang Betz |
0:4fb29d9ee571 | 556 | /* Reads the CSMA_CONFIG0 register value */ |
| Wolfgang Betz |
0:4fb29d9ee571 | 557 | g_xStatus = SpiritSpiReadRegisters(CSMA_CONFIG0_BASE, 1, &tempRegValue); |
| Wolfgang Betz |
0:4fb29d9ee571 | 558 | |
| Wolfgang Betz |
0:4fb29d9ee571 | 559 | /* Build the value of max back off to be set */ |
| Wolfgang Betz |
0:4fb29d9ee571 | 560 | tempRegValue &= 0xF8; |
| Wolfgang Betz |
0:4fb29d9ee571 | 561 | tempRegValue |= cMaxNb; |
| Wolfgang Betz |
0:4fb29d9ee571 | 562 | |
| Wolfgang Betz |
0:4fb29d9ee571 | 563 | /* Writes the new value on the CSMA_CONFIG0 register */ |
| Wolfgang Betz |
0:4fb29d9ee571 | 564 | g_xStatus = SpiritSpiWriteRegisters(CSMA_CONFIG0_BASE, 1, &tempRegValue); |
| Wolfgang Betz |
0:4fb29d9ee571 | 565 | } |
| Wolfgang Betz |
0:4fb29d9ee571 | 566 | |
| Wolfgang Betz |
0:4fb29d9ee571 | 567 | /** |
| Wolfgang Betz |
0:4fb29d9ee571 | 568 | * @brief Returns the max number of back-off. |
| Wolfgang Betz |
0:4fb29d9ee571 | 569 | * @param None. |
| Wolfgang Betz |
0:4fb29d9ee571 | 570 | * @retval uint8_t Max number of back-off. |
| Wolfgang Betz |
0:4fb29d9ee571 | 571 | */ |
| Wolfgang Betz |
0:4fb29d9ee571 | 572 | uint8_t SpiritCsmaGetMaxNumberBackoff(void) |
| Wolfgang Betz |
0:4fb29d9ee571 | 573 | { |
| Wolfgang Betz |
0:4fb29d9ee571 | 574 | uint8_t tempRegValue; |
| Wolfgang Betz |
0:4fb29d9ee571 | 575 | |
| Wolfgang Betz |
0:4fb29d9ee571 | 576 | /* Reads the CSMA_CONFIG0 register value */ |
| Wolfgang Betz |
0:4fb29d9ee571 | 577 | g_xStatus = SpiritSpiReadRegisters(CSMA_CONFIG0_BASE, 1, &tempRegValue); |
| Wolfgang Betz |
0:4fb29d9ee571 | 578 | |
| Wolfgang Betz |
0:4fb29d9ee571 | 579 | /* Build and return the max number of back-off */ |
| Wolfgang Betz |
0:4fb29d9ee571 | 580 | return (tempRegValue & 0x07); |
| Wolfgang Betz |
0:4fb29d9ee571 | 581 | |
| Wolfgang Betz |
0:4fb29d9ee571 | 582 | } |
| Wolfgang Betz |
0:4fb29d9ee571 | 583 | |
| Wolfgang Betz |
0:4fb29d9ee571 | 584 | |
| Wolfgang Betz |
0:4fb29d9ee571 | 585 | /** |
| Wolfgang Betz |
0:4fb29d9ee571 | 586 | *@} |
| Wolfgang Betz |
0:4fb29d9ee571 | 587 | */ |
| Wolfgang Betz |
0:4fb29d9ee571 | 588 | |
| Wolfgang Betz |
0:4fb29d9ee571 | 589 | /** |
| Wolfgang Betz |
0:4fb29d9ee571 | 590 | *@} |
| Wolfgang Betz |
0:4fb29d9ee571 | 591 | */ |
| Wolfgang Betz |
0:4fb29d9ee571 | 592 | |
| Wolfgang Betz |
0:4fb29d9ee571 | 593 | |
| Wolfgang Betz |
0:4fb29d9ee571 | 594 | /** |
| Wolfgang Betz |
0:4fb29d9ee571 | 595 | *@} |
| Wolfgang Betz |
0:4fb29d9ee571 | 596 | */ |
| Wolfgang Betz |
0:4fb29d9ee571 | 597 | |
| Wolfgang Betz |
0:4fb29d9ee571 | 598 | |
| Wolfgang Betz |
0:4fb29d9ee571 | 599 | |
| Wolfgang Betz |
0:4fb29d9ee571 | 600 | /******************* (C) COPYRIGHT 2015 STMicroelectronics *****END OF FILE****/ |
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Repository details
| Type: | Library |
|---|---|
| Created: | 05 Jul 2017 |
| Imports: | 273 |
| Forks: | 2 |
| Commits: | 83 |
| Dependents: | 0 |
| Dependencies: | 0 |
| Followers: | 410 |
The code in this repository is Apache licensed.
Components
X-NUCLEO-IDS01A4 Sub-1GHz RF Expansion Board