483 lines
14 KiB
C
483 lines
14 KiB
C
/**
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******************************************************************************
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* @file radio_spi.c
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* @author System Lab - NOIDA
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* @version V1.0.0
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* @date 15-May-2014
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* @brief This file provides code for the configuration of the SPI instances.
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******************************************************************************
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* @attention
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*
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* <h2><center>© COPYRIGHT(c) 2014 STMicroelectronics</center></h2>
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*
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* Redistribution and use in source and binary forms, with or without modification,
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* are permitted provided that the following conditions are met:
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* 1. Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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* 3. Neither the name of STMicroelectronics nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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******************************************************************************
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*/
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/* Includes ------------------------------------------------------------------*/
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#include "radio_spi.h"
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/**
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* @addtogroup BSP
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* @{
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*/
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/**
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* @addtogroup X-NUCLEO-IDS02Ax
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* @{
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*/
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/**
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* @defgroup RADIO_SPI_Private_TypesDefinitions RADIO_SPI Private Types Definitions
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* @{
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*/
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/**
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* @}
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*/
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/**
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* @defgroup RADIO_SPI_Private_Defines RADIO_SPI Private Defines
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* @{
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*/
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/**
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* @}
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*/
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/**
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* @defgroup RADIO_SPI_Private_Macros RADIO_SPI Private Macros
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* @{
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*/
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/**
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* @}
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*/
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/**
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* @defgroup RADIO_SPI_Private_Variables RADIO_SPI Private Variables
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* @{
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*/
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SPI_HandleTypeDef pSpiHandle;
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uint32_t SpiTimeout = RADIO_SPI_TIMEOUT_MAX; /*<! Value of Timeout when SPI communication fails */
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/**
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* @}
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*/
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/**
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* @defgroup RADIO_SPI_Private_FunctionPrototypes RADIO_SPI Private Function Prototypes
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* @{
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*/
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void HAL_SPI_MspInit(SPI_HandleTypeDef* pSpiHandle);
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static void SPI_Write(uint8_t Value);
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static void SPI_Error(void);
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/**
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* @}
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*/
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/**
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* @defgroup RADIO_SPI_Private_Functions RADIO_SPI Private Functions
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* @{
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*/
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/**
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* @brief Initializes SPI HAL.
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* @param None
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* @retval None
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*/
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void SdkEvalSpiInit(void)
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{
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if (HAL_SPI_GetState(&pSpiHandle) == HAL_SPI_STATE_RESET)
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{
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/* SPI Config */
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pSpiHandle.Instance = RADIO_SPI;
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pSpiHandle.Init.BaudRatePrescaler = SPI_BAUDRATEPRESCALER_4;
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pSpiHandle.Init.Direction = SPI_DIRECTION_2LINES;
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pSpiHandle.Init.CLKPhase = SPI_PHASE_1EDGE;
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pSpiHandle.Init.CLKPolarity = SPI_POLARITY_LOW;
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pSpiHandle.Init.CRCCalculation = SPI_CRCCALCULATION_DISABLED;
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pSpiHandle.Init.CRCPolynomial = 7;
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pSpiHandle.Init.DataSize = SPI_DATASIZE_8BIT;
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pSpiHandle.Init.FirstBit = SPI_FIRSTBIT_MSB;
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pSpiHandle.Init.NSS = SPI_NSS_HARD_OUTPUT;
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pSpiHandle.Init.TIMode = SPI_TIMODE_DISABLED;
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pSpiHandle.Init.Mode = SPI_MODE_MASTER;
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HAL_SPI_MspInit(&pSpiHandle);
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HAL_SPI_Init(&pSpiHandle);
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}
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}
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/**
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* @brief Initializes SPI MSP.
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* @param SPI_HandleTypeDef* pSpiHandle
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* @retval None
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*/
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void HAL_SPI_MspInit(SPI_HandleTypeDef* pSpiHandle)
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{
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GPIO_InitTypeDef GPIO_InitStruct;
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if (pSpiHandle->Instance==RADIO_SPI)
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{
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/*** Configure the GPIOs ***/
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/* Enable GPIO clock */
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RADIO_SPI_SCK_CLOCK_ENABLE();
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RADIO_SPI_MISO_CLOCK_ENABLE();
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RADIO_SPI_MOSI_CLOCK_ENABLE();
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/**SPI1 GPIO Configuration */
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GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
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GPIO_InitStruct.Pull = GPIO_PULLUP;
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GPIO_InitStruct.Speed = GPIO_SPEED_HIGH;
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GPIO_InitStruct.Alternate = GPIO_AF5_SPI1;
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GPIO_InitStruct.Pin = RADIO_SPI_SCK_PIN;
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HAL_GPIO_Init(RADIO_SPI_SCK_PORT, &GPIO_InitStruct);
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GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
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GPIO_InitStruct.Pull = GPIO_PULLDOWN;
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GPIO_InitStruct.Speed = GPIO_SPEED_HIGH;
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GPIO_InitStruct.Alternate = GPIO_AF5_SPI1;
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GPIO_InitStruct.Pin = RADIO_SPI_MISO_PIN;
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HAL_GPIO_Init(RADIO_SPI_MISO_PORT, &GPIO_InitStruct);
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GPIO_InitStruct.Pin = RADIO_SPI_MOSI_PIN;
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HAL_GPIO_Init(RADIO_SPI_MOSI_PORT, &GPIO_InitStruct);
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RADIO_SPI_CS_CLOCK_ENABLE();
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/* Configure SPI pin: CS */
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GPIO_InitStruct.Pin = RADIO_SPI_CS_PIN;
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GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
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GPIO_InitStruct.Pull = GPIO_PULLUP;
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GPIO_InitStruct.Speed = GPIO_SPEED_HIGH;
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HAL_GPIO_Init(RADIO_SPI_CS_PORT, &GPIO_InitStruct);
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RADIO_SPI_CLK_ENABLE();
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}
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}
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/**
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* @}
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*/
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/**
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* @brief SPI Write a byte to device
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* @param Value: value to be written
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* @retval None
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*/
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static void SPI_Write(uint8_t Value)
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{
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HAL_StatusTypeDef status = HAL_OK;
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while (__HAL_SPI_GET_FLAG(&pSpiHandle, SPI_FLAG_TXE) == RESET);
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status = HAL_SPI_Transmit(&pSpiHandle, (uint8_t*) &Value, 1, SpiTimeout);
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/* Check the communication status */
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if (status != HAL_OK)
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{
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/* Execute user timeout callback */
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SPI_Error();
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}
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}
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/**
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* @brief SPI error treatment function
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* @param None
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* @retval None
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*/
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static void SPI_Error(void)
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{
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/* De-initialize the SPI communication BUS */
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HAL_SPI_DeInit(&pSpiHandle);
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/* Re-Initiaize the SPI communication BUS */
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SdkEvalSpiInit();
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}
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/**
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* @brief Write single or multiple RF Transceivers register
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* @param cRegAddress: base register's address to be write
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* @param cNbBytes: number of registers and bytes to be write
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* @param pcBuffer: pointer to the buffer of values have to be written into registers
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* @retval StatusBytes
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*/
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StatusBytes SdkEvalSpiWriteRegisters(uint8_t cRegAddress, uint8_t cNbBytes, uint8_t* pcBuffer)
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{
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uint8_t aHeader[2] = {0};
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uint16_t tmpstatus = 0x0000;
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StatusBytes *pStatus=(StatusBytes *)&tmpstatus;
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/* Built the aHeader bytes */
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aHeader[0] = WRITE_HEADER;
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aHeader[1] = cRegAddress;
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SPI_ENTER_CRITICAL();
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/* Puts the SPI chip select low to start the transaction */
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RadioSpiCSLow();
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for (volatile uint16_t Index = 0; Index < CS_TO_SCLK_DELAY; Index++);
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/* Write the aHeader bytes and read the SPIRIT1 status bytes */
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HAL_SPI_TransmitReceive(&pSpiHandle, (uint8_t *)&aHeader[0], (uint8_t *)&(tmpstatus), 1, SpiTimeout);
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tmpstatus = tmpstatus << 8;
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/* Write the aHeader bytes and read the SPIRIT1 status bytes */
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HAL_SPI_TransmitReceive(&pSpiHandle, (uint8_t *)&aHeader[1], (uint8_t *)&tmpstatus, 1, SpiTimeout);
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/* Writes the registers according to the number of bytes */
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for (int index = 0; index < cNbBytes; index++)
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{
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SPI_Write(pcBuffer[index]);
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}
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/* To be sure to don't rise the Chip Select before the end of last sending */
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while (__HAL_SPI_GET_FLAG(&pSpiHandle, SPI_FLAG_TXE) == RESET);
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/* Puts the SPI chip select high to end the transaction */
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RadioSpiCSHigh();
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SPI_EXIT_CRITICAL();
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return *pStatus;
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}
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/**
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* @brief Read single or multiple SPIRIT1 register
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* @param cRegAddress: base register's address to be read
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* @param cNbBytes: number of registers and bytes to be read
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* @param pcBuffer: pointer to the buffer of registers' values read
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* @retval StatusBytes
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*/
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StatusBytes SdkEvalSpiReadRegisters(uint8_t cRegAddress, uint8_t cNbBytes, uint8_t* pcBuffer)
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{
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uint16_t tmpstatus = 0x00;
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StatusBytes *pStatus = (StatusBytes *)&tmpstatus;
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uint8_t aHeader[2] = {0};
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uint8_t dummy = 0xFF;
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/* Built the aHeader bytes */
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aHeader[0] = READ_HEADER;
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aHeader[1] = cRegAddress;
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SPI_ENTER_CRITICAL();
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/* Put the SPI chip select low to start the transaction */
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RadioSpiCSLow();
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for (volatile uint16_t Index = 0; Index < CS_TO_SCLK_DELAY; Index++);
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/* Write the aHeader bytes and read the SPIRIT1 status bytes */
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HAL_SPI_TransmitReceive(&pSpiHandle, (uint8_t *)&aHeader[0], (uint8_t *)&(tmpstatus), 1, SpiTimeout);
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tmpstatus = tmpstatus << 8;
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/* Write the aHeader bytes and read the SPIRIT1 status bytes */
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HAL_SPI_TransmitReceive(&pSpiHandle, (uint8_t *)&aHeader[1], (uint8_t *)&tmpstatus, 1, SpiTimeout);
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for (int index = 0; index < cNbBytes; index++)
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{
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HAL_SPI_TransmitReceive(&pSpiHandle, (uint8_t *)&dummy, (uint8_t *)&(pcBuffer)[index], 1, SpiTimeout);
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}
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/* To be sure to don't rise the Chip Select before the end of last sending */
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while (__HAL_SPI_GET_FLAG(&pSpiHandle, SPI_FLAG_TXE) == RESET);
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/* Put the SPI chip select high to end the transaction */
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RadioSpiCSHigh();
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SPI_EXIT_CRITICAL();
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return *pStatus;
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}
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/**
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* @brief Send a command
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* @param cCommandCode: command code to be sent
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* @retval StatusBytes
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*/
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StatusBytes SdkEvalSpiCommandStrobes(uint8_t cCommandCode)
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{
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uint8_t aHeader[2] = {0};
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uint16_t tmpstatus = 0x0000;
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StatusBytes *pStatus = (StatusBytes *)&tmpstatus;
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/* Built the aHeader bytes */
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aHeader[0] = COMMAND_HEADER;
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aHeader[1] = cCommandCode;
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SPI_ENTER_CRITICAL();
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/* Puts the SPI chip select low to start the transaction */
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RadioSpiCSLow();
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for (volatile uint16_t Index = 0; Index < CS_TO_SCLK_DELAY; Index++);
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/* Write the aHeader bytes and read the SPIRIT1 status bytes */
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HAL_SPI_TransmitReceive(&pSpiHandle, (uint8_t *)&aHeader[0], (uint8_t *)&tmpstatus, 1, SpiTimeout);
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tmpstatus = tmpstatus<<8;
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/* Write the aHeader bytes and read the SPIRIT1 status bytes */
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HAL_SPI_TransmitReceive(&pSpiHandle, (uint8_t *)&aHeader[1], (uint8_t *)&tmpstatus, 1, SpiTimeout);
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/* To be sure to don't rise the Chip Select before the end of last sending */
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while (__HAL_SPI_GET_FLAG(&pSpiHandle, SPI_FLAG_TXE) == RESET);
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/* Puts the SPI chip select high to end the transaction */
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RadioSpiCSHigh();
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SPI_EXIT_CRITICAL();
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return *pStatus;
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}
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/**
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* @brief Write data into TX FIFO
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* @param cNbBytes: number of bytes to be written into TX FIFO
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* @param pcBuffer: pointer to data to write
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* @retval StatusBytes
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*/
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StatusBytes SdkEvalSpiWriteFifo(uint8_t cNbBytes, uint8_t* pcBuffer)
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{
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uint16_t tmpstatus = 0x0000;
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StatusBytes *pStatus = (StatusBytes *)&tmpstatus;
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uint8_t aHeader[2] = {0};
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/* Built the aHeader bytes */
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aHeader[0] = WRITE_HEADER;
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aHeader[1] = LINEAR_FIFO_ADDRESS;
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SPI_ENTER_CRITICAL();
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/* Put the SPI chip select low to start the transaction */
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RadioSpiCSLow();
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for (volatile uint16_t Index = 0; Index < CS_TO_SCLK_DELAY; Index++);
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/* Write the aHeader bytes and read the SPIRIT1 status bytes */
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HAL_SPI_TransmitReceive(&pSpiHandle, (uint8_t *)&aHeader[0], (uint8_t *)&tmpstatus, 1, SpiTimeout);
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tmpstatus = tmpstatus<<8;
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/* Write the aHeader bytes and read the SPIRIT1 status bytes */
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HAL_SPI_TransmitReceive(&pSpiHandle, (uint8_t *)&aHeader[1], (uint8_t *)&tmpstatus, 1, SpiTimeout);
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/* Writes the registers according to the number of bytes */
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for (int index = 0; index < cNbBytes; index++)
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{
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SPI_Write(pcBuffer[index]);
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}
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/* To be sure to don't rise the Chip Select before the end of last sending */
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while (__HAL_SPI_GET_FLAG(&pSpiHandle, SPI_FLAG_TXE) == RESET);
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/* Put the SPI chip select high to end the transaction */
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RadioSpiCSHigh();
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SPI_EXIT_CRITICAL();
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return *pStatus;
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}
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/**
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* @brief Read data from RX FIFO
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* @param cNbBytes: number of bytes to read from RX FIFO
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* @param pcBuffer: pointer to data read from RX FIFO
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* @retval StatusBytes
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*/
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StatusBytes SdkEvalSpiReadFifo(uint8_t cNbBytes, uint8_t* pcBuffer)
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{
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uint16_t tmpstatus = 0x0000;
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StatusBytes *pStatus = (StatusBytes *)&tmpstatus;
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uint8_t aHeader[2];
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uint8_t dummy=0xFF;
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/* Built the aHeader bytes */
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aHeader[0]=READ_HEADER;
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aHeader[1]=LINEAR_FIFO_ADDRESS;
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SPI_ENTER_CRITICAL();
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/* Put the SPI chip select low to start the transaction */
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RadioSpiCSLow();
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for (volatile uint16_t Index = 0; Index < CS_TO_SCLK_DELAY; Index++);
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/* Write the aHeader bytes and read the SPIRIT1 status bytes */
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HAL_SPI_TransmitReceive(&pSpiHandle, (uint8_t *)&aHeader[0], (uint8_t *)&tmpstatus, 1, SpiTimeout);
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tmpstatus = tmpstatus<<8;
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/* Write the aHeader bytes and read the SPIRIT1 status bytes */
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HAL_SPI_TransmitReceive(&pSpiHandle, (uint8_t *)&aHeader[1], (uint8_t *)&tmpstatus, 1, SpiTimeout);
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for (int index = 0; index < cNbBytes; index++)
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{
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HAL_SPI_TransmitReceive(&pSpiHandle, (uint8_t *)&dummy, (uint8_t *)&pcBuffer[index], 1, SpiTimeout);
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}
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/* To be sure to don't rise the Chip Select before the end of last sending */
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while(__HAL_SPI_GET_FLAG(&pSpiHandle, SPI_FLAG_TXE) == RESET);
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/* Put the SPI chip select high to end the transaction */
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RadioSpiCSHigh();
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SPI_EXIT_CRITICAL();
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return *pStatus;
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}
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/**
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* @}
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*/
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/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
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