[303] | 1 | /**
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| 2 | ******************************************************************************
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| 3 | * @file stm32f4xx_nucleo.c
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| 4 | * @author MCD Application Team
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| 5 | * @version V1.2.2
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| 6 | * @date 14-August-2015
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| 7 | * @brief This file provides set of firmware functions to manage:
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| 8 | * - LEDs and push-button available on STM32F4XX-Nucleo Kit
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| 9 | * from STMicroelectronics
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| 10 | * - LCD, joystick and microSD available on Adafruit 1.8" TFT LCD
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| 11 | * shield (reference ID 802)
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| 12 | ******************************************************************************
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| 13 | * @attention
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| 14 | *
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| 15 | * <h2><center>© COPYRIGHT(c) 2015 STMicroelectronics</center></h2>
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| 16 | *
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| 17 | * Redistribution and use in source and binary forms, with or without modification,
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| 18 | * are permitted provided that the following conditions are met:
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| 19 | * 1. Redistributions of source code must retain the above copyright notice,
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| 20 | * this list of conditions and the following disclaimer.
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| 21 | * 2. Redistributions in binary form must reproduce the above copyright notice,
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| 22 | * this list of conditions and the following disclaimer in the documentation
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| 23 | * and/or other materials provided with the distribution.
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| 24 | * 3. Neither the name of STMicroelectronics nor the names of its contributors
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| 25 | * may be used to endorse or promote products derived from this software
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| 26 | * without specific prior written permission.
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| 27 | *
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| 28 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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| 29 | * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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| 30 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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| 31 | * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
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| 32 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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| 33 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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| 34 | * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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| 35 | * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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| 36 | * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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| 37 | * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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| 38 | *
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| 39 | ******************************************************************************
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| 40 | */
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| 41 |
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| 42 | /* Includes ------------------------------------------------------------------*/
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| 43 | #include "stm32f4xx_nucleo.h"
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| 44 |
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| 45 | /** @addtogroup BSP
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| 46 | * @{
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| 47 | */
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| 48 |
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| 49 | /** @addtogroup STM32F4XX_NUCLEO
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| 50 | * @{
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| 51 | */
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| 52 |
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| 53 | /** @addtogroup STM32F4XX_NUCLEO_LOW_LEVEL
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| 54 | * @brief This file provides set of firmware functions to manage Leds and push-button
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| 55 | * available on STM32F4xx-Nucleo Kit from STMicroelectronics.
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| 56 | * @{
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| 57 | */
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| 58 |
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| 59 | /** @defgroup STM32F4XX_NUCLEO_LOW_LEVEL_Private_TypesDefinitions
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| 60 | * @{
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| 61 | */
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| 62 | /**
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| 63 | * @}
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| 64 | */
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| 65 |
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| 66 |
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| 67 | /** @defgroup STM32F4XX_NUCLEO_LOW_LEVEL_Private_Defines
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| 68 | * @{
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| 69 | */
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| 70 |
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| 71 | /**
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| 72 | * @brief STM32F4xx NUCLEO BSP Driver version number V1.2.2
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| 73 | */
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| 74 | #define __STM32F4xx_NUCLEO_BSP_VERSION_MAIN (0x01) /*!< [31:24] main version */
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| 75 | #define __STM32F4xx_NUCLEO_BSP_VERSION_SUB1 (0x02) /*!< [23:16] sub1 version */
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| 76 | #define __STM32F4xx_NUCLEO_BSP_VERSION_SUB2 (0x02) /*!< [15:8] sub2 version */
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| 77 | #define __STM32F4xx_NUCLEO_BSP_VERSION_RC (0x00) /*!< [7:0] release candidate */
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| 78 | #define __STM32F4xx_NUCLEO_BSP_VERSION ((__STM32F4xx_NUCLEO_BSP_VERSION_MAIN << 24)\
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| 79 | |(__STM32F4xx_NUCLEO_BSP_VERSION_SUB1 << 16)\
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| 80 | |(__STM32F4xx_NUCLEO_BSP_VERSION_SUB2 << 8 )\
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| 81 | |(__STM32F4xx_NUCLEO_BSP_VERSION_RC))
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| 82 |
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| 83 | /**
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| 84 | * @brief LINK SD Card
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| 85 | */
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| 86 | #define SD_DUMMY_BYTE 0xFF
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| 87 | #define SD_NO_RESPONSE_EXPECTED 0x80
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| 88 |
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| 89 | /**
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| 90 | * @}
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| 91 | */
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| 92 |
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| 93 | /** @defgroup STM32F4XX_NUCLEO_LOW_LEVEL_Private_Macros
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| 94 | * @{
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| 95 | */
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| 96 | /**
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| 97 | * @}
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| 98 | */
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| 99 |
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| 100 | /** @defgroup STM32F4XX_NUCLEO_LOW_LEVEL_Private_Variables
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| 101 | * @{
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| 102 | */
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| 103 | GPIO_TypeDef* GPIO_PORT[LEDn] = {LED2_GPIO_PORT};
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| 104 |
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| 105 | const uint16_t GPIO_PIN[LEDn] = {LED2_PIN};
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| 106 |
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| 107 | GPIO_TypeDef* BUTTON_PORT[BUTTONn] = {KEY_BUTTON_GPIO_PORT};
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| 108 | const uint16_t BUTTON_PIN[BUTTONn] = {KEY_BUTTON_PIN};
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| 109 | const uint8_t BUTTON_IRQn[BUTTONn] = {KEY_BUTTON_EXTI_IRQn};
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| 110 |
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| 111 | /**
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| 112 | * @brief BUS variables
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| 113 | */
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| 114 | #if 0
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| 115 | uint32_t SpixTimeout = NUCLEO_SPIx_TIMEOUT_MAX; /*<! Value of Timeout when SPI communication fails */
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| 116 | static SPI_HandleTypeDef hnucleo_Spi;
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| 117 | static ADC_HandleTypeDef hnucleo_Adc;
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| 118 |
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| 119 | /* ADC channel configuration structure declaration */
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| 120 | static ADC_ChannelConfTypeDef sConfig;
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| 121 |
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| 122 | /**
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| 123 | * @}
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| 124 | */
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| 125 |
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| 126 | /** @defgroup STM32F4XX_NUCLEO_LOW_LEVEL_Private_FunctionPrototypes
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| 127 | * @{
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| 128 | */
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| 129 | static void SPIx_Init(void);
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| 130 | static void SPIx_Write(uint8_t Value);
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| 131 | static uint32_t SPIx_Read(void);
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| 132 | static void SPIx_Error(void);
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| 133 | static void SPIx_MspInit(SPI_HandleTypeDef *hspi);
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| 134 |
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| 135 | static void ADCx_Init(void);
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| 136 | static void ADCx_MspInit(ADC_HandleTypeDef *hadc);
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| 137 |
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| 138 | /* SD IO functions */
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| 139 | void SD_IO_Init(void);
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| 140 | HAL_StatusTypeDef SD_IO_WriteCmd(uint8_t Cmd, uint32_t Arg, uint8_t Crc, uint8_t Response);
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| 141 | HAL_StatusTypeDef SD_IO_WaitResponse(uint8_t Response);
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| 142 | void SD_IO_WriteDummy(void);
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| 143 | void SD_IO_WriteByte(uint8_t Data);
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| 144 | uint8_t SD_IO_ReadByte(void);
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| 145 |
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| 146 | /* LCD IO functions */
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| 147 | void LCD_IO_Init(void);
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| 148 | void LCD_IO_WriteData(uint8_t Data);
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| 149 | void LCD_IO_WriteMultipleData(uint8_t *pData, uint32_t Size);
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| 150 | void LCD_IO_WriteReg(uint8_t LCDReg);
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| 151 | void LCD_Delay(uint32_t delay);
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| 152 | #endif
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| 153 |
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| 154 | /**
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| 155 | * @}
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| 156 | */
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| 157 |
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| 158 | /** @defgroup STM32F4XX_NUCLEO_LOW_LEVEL_Private_Functions
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| 159 | * @{
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| 160 | */
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| 161 |
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| 162 | /**
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| 163 | * @brief This method returns the STM32F4xx NUCLEO BSP Driver revision
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| 164 | * @param None
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| 165 | * @retval version: 0xXYZR (8bits for each decimal, R for RC)
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| 166 | */
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| 167 | uint32_t BSP_GetVersion(void)
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| 168 | {
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| 169 | return __STM32F4xx_NUCLEO_BSP_VERSION;
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| 170 | }
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| 171 |
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| 172 | /**
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| 173 | * @brief Configures LED GPIO.
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| 174 | * @param Led: Specifies the Led to be configured.
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| 175 | * This parameter can be one of following parameters:
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| 176 | * @arg LED2
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| 177 | * @retval None
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| 178 | */
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| 179 | void BSP_LED_Init(Led_TypeDef Led)
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| 180 | {
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| 181 | GPIO_InitTypeDef GPIO_InitStruct;
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| 182 |
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| 183 | /* Enable the GPIO_LED Clock */
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| 184 | LEDx_GPIO_CLK_ENABLE(Led);
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| 185 |
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| 186 | /* Configure the GPIO_LED pin */
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| 187 | GPIO_InitStruct.Pin = GPIO_PIN[Led];
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| 188 | GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
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| 189 | GPIO_InitStruct.Pull = GPIO_PULLUP;
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| 190 | GPIO_InitStruct.Speed = GPIO_SPEED_FAST;
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| 191 |
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| 192 | HAL_GPIO_Init(GPIO_PORT[Led], &GPIO_InitStruct);
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| 193 |
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| 194 | HAL_GPIO_WritePin(GPIO_PORT[Led], GPIO_PIN[Led], GPIO_PIN_RESET);
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| 195 | }
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| 196 |
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| 197 | /**
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| 198 | * @brief Turns selected LED On.
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| 199 | * @param Led: Specifies the Led to be set on.
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| 200 | * This parameter can be one of following parameters:
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| 201 | * @arg LED2
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| 202 | * @retval None
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| 203 | */
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| 204 | void BSP_LED_On(Led_TypeDef Led)
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| 205 | {
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| 206 | HAL_GPIO_WritePin(GPIO_PORT[Led], GPIO_PIN[Led], GPIO_PIN_SET);
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| 207 | }
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| 208 |
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| 209 | /**
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| 210 | * @brief Turns selected LED Off.
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| 211 | * @param Led: Specifies the Led to be set off.
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| 212 | * This parameter can be one of following parameters:
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| 213 | * @arg LED2
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| 214 | * @retval None
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| 215 | */
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| 216 | void BSP_LED_Off(Led_TypeDef Led)
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| 217 | {
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| 218 | HAL_GPIO_WritePin(GPIO_PORT[Led], GPIO_PIN[Led], GPIO_PIN_RESET);
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| 219 | }
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| 220 |
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| 221 | /**
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| 222 | * @brief Toggles the selected LED.
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| 223 | * @param Led: Specifies the Led to be toggled.
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| 224 | * This parameter can be one of following parameters:
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| 225 | * @arg LED2
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| 226 | * @retval None
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| 227 | */
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| 228 | void BSP_LED_Toggle(Led_TypeDef Led)
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| 229 | {
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| 230 | HAL_GPIO_TogglePin(GPIO_PORT[Led], GPIO_PIN[Led]);
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| 231 | }
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| 232 |
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| 233 | /**
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| 234 | * @brief Configures Button GPIO and EXTI Line.
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| 235 | * @param Button: Specifies the Button to be configured.
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| 236 | * This parameter should be: BUTTON_KEY
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| 237 | * @param ButtonMode: Specifies Button mode.
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| 238 | * This parameter can be one of following parameters:
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| 239 | * @arg BUTTON_MODE_GPIO: Button will be used as simple IO
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| 240 | * @arg BUTTON_MODE_EXTI: Button will be connected to EXTI line with interrupt
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| 241 | * generation capability
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| 242 | * @retval None
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| 243 | */
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| 244 | void BSP_PB_Init(Button_TypeDef Button, ButtonMode_TypeDef ButtonMode)
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| 245 | {
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| 246 | GPIO_InitTypeDef GPIO_InitStruct;
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| 247 |
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| 248 | /* Enable the BUTTON Clock */
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| 249 | BUTTONx_GPIO_CLK_ENABLE(Button);
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| 250 |
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| 251 | if(ButtonMode == BUTTON_MODE_GPIO)
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| 252 | {
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| 253 | /* Configure Button pin as input */
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| 254 | GPIO_InitStruct.Pin = BUTTON_PIN[Button];
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| 255 | GPIO_InitStruct.Mode = GPIO_MODE_INPUT;
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| 256 | GPIO_InitStruct.Pull = GPIO_PULLDOWN;
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| 257 | GPIO_InitStruct.Speed = GPIO_SPEED_FAST;
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| 258 | HAL_GPIO_Init(BUTTON_PORT[Button], &GPIO_InitStruct);
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| 259 | }
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| 260 |
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| 261 | if(ButtonMode == BUTTON_MODE_EXTI)
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| 262 | {
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| 263 | /* Configure Button pin as input with External interrupt */
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| 264 | GPIO_InitStruct.Pin = BUTTON_PIN[Button];
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| 265 | GPIO_InitStruct.Pull = GPIO_NOPULL;
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| 266 | GPIO_InitStruct.Mode = GPIO_MODE_IT_FALLING;
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| 267 | HAL_GPIO_Init(BUTTON_PORT[Button], &GPIO_InitStruct);
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| 268 |
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| 269 | /* Enable and set Button EXTI Interrupt to the lowest priority */
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| 270 | // HAL_NVIC_SetPriority((IRQn_Type)(BUTTON_IRQn[Button]), 0x0F, 0x00);
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| 271 | // HAL_NVIC_EnableIRQ((IRQn_Type)(BUTTON_IRQn[Button]));
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| 272 | }
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| 273 | }
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| 274 |
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| 275 | /**
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| 276 | * @brief Returns the selected Button state.
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| 277 | * @param Button: Specifies the Button to be checked.
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| 278 | * This parameter should be: BUTTON_KEY
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| 279 | * @retval The Button GPIO pin value.
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| 280 | */
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| 281 | uint32_t BSP_PB_GetState(Button_TypeDef Button)
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| 282 | {
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| 283 | return HAL_GPIO_ReadPin(BUTTON_PORT[Button], BUTTON_PIN[Button]);
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| 284 | }
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| 285 | #if 0
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| 286 | /******************************************************************************
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| 287 | BUS OPERATIONS
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| 288 | *******************************************************************************/
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| 289 | /**
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| 290 | * @brief Initializes SPI MSP.
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| 291 | * @param None
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| 292 | * @retval None
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| 293 | */
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| 294 | static void SPIx_MspInit(SPI_HandleTypeDef *hspi)
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| 295 | {
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| 296 | GPIO_InitTypeDef GPIO_InitStruct;
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| 297 |
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| 298 | /*** Configure the GPIOs ***/
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| 299 | /* Enable GPIO clock */
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| 300 | NUCLEO_SPIx_SCK_GPIO_CLK_ENABLE();
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| 301 | NUCLEO_SPIx_MISO_MOSI_GPIO_CLK_ENABLE();
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| 302 |
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| 303 | /* Configure SPI SCK */
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| 304 | GPIO_InitStruct.Pin = NUCLEO_SPIx_SCK_PIN;
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| 305 | GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
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| 306 | GPIO_InitStruct.Pull = GPIO_PULLUP;
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| 307 | GPIO_InitStruct.Speed = GPIO_SPEED_HIGH;
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| 308 | GPIO_InitStruct.Alternate = NUCLEO_SPIx_SCK_AF;
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| 309 | HAL_GPIO_Init(NUCLEO_SPIx_SCK_GPIO_PORT, &GPIO_InitStruct);
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| 310 |
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| 311 | /* Configure SPI MISO and MOSI */
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| 312 | GPIO_InitStruct.Pin = NUCLEO_SPIx_MOSI_PIN;
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| 313 | GPIO_InitStruct.Alternate = NUCLEO_SPIx_MISO_MOSI_AF;
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| 314 | GPIO_InitStruct.Pull = GPIO_PULLDOWN;
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| 315 | HAL_GPIO_Init(NUCLEO_SPIx_MISO_MOSI_GPIO_PORT, &GPIO_InitStruct);
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| 316 |
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| 317 | GPIO_InitStruct.Pin = NUCLEO_SPIx_MISO_PIN;
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| 318 | HAL_GPIO_Init(NUCLEO_SPIx_MISO_MOSI_GPIO_PORT, &GPIO_InitStruct);
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| 319 |
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| 320 | /*** Configure the SPI peripheral ***/
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| 321 | /* Enable SPI clock */
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| 322 | NUCLEO_SPIx_CLK_ENABLE();
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| 323 | }
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| 324 |
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| 325 | /**
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| 326 | * @brief Initializes SPI HAL.
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| 327 | * @param None
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| 328 | * @retval None
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| 329 | */
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| 330 | static void SPIx_Init(void)
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| 331 | {
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| 332 | if(HAL_SPI_GetState(&hnucleo_Spi) == HAL_SPI_STATE_RESET)
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| 333 | {
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| 334 | /* SPI Config */
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| 335 | hnucleo_Spi.Instance = NUCLEO_SPIx;
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| 336 | /* SPI baudrate is set to 12,5 MHz maximum (PCLK2/SPI_BaudRatePrescaler = 100/8 = 12,5 MHz)
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| 337 | to verify these constraints:
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| 338 | - ST7735 LCD SPI interface max baudrate is 15MHz for write and 6.66MHz for read
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| 339 | Since the provided driver doesn't use read capability from LCD, only constraint
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| 340 | on write baudrate is considered.
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| 341 | - SD card SPI interface max baudrate is 25MHz for write/read
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| 342 | - PCLK2 max frequency is 100 MHz
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| 343 | */
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| 344 | hnucleo_Spi.Init.BaudRatePrescaler = SPI_BAUDRATEPRESCALER_8;
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| 345 | hnucleo_Spi.Init.Direction = SPI_DIRECTION_2LINES;
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| 346 | hnucleo_Spi.Init.CLKPhase = SPI_PHASE_2EDGE;
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| 347 | hnucleo_Spi.Init.CLKPolarity = SPI_POLARITY_HIGH;
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| 348 | hnucleo_Spi.Init.CRCCalculation = SPI_CRCCALCULATION_DISABLED;
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| 349 | hnucleo_Spi.Init.CRCPolynomial = 7;
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| 350 | hnucleo_Spi.Init.DataSize = SPI_DATASIZE_8BIT;
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| 351 | hnucleo_Spi.Init.FirstBit = SPI_FIRSTBIT_MSB;
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| 352 | hnucleo_Spi.Init.NSS = SPI_NSS_SOFT;
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| 353 | hnucleo_Spi.Init.TIMode = SPI_TIMODE_DISABLED;
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| 354 | hnucleo_Spi.Init.Mode = SPI_MODE_MASTER;
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| 355 |
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| 356 | SPIx_MspInit(&hnucleo_Spi);
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| 357 | HAL_SPI_Init(&hnucleo_Spi);
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| 358 | }
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| 359 | }
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| 360 |
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| 361 | /**
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| 362 | * @brief SPI Read 4 bytes from device.
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| 363 | * @param None
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| 364 | * @retval Read data
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| 365 | */
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| 366 | static uint32_t SPIx_Read(void)
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| 367 | {
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| 368 | HAL_StatusTypeDef status = HAL_OK;
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| 369 | uint32_t readvalue = 0;
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| 370 | uint32_t writevalue = 0xFFFFFFFF;
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| 371 |
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| 372 | status = HAL_SPI_TransmitReceive(&hnucleo_Spi, (uint8_t*) &writevalue, (uint8_t*) &readvalue, 1, SpixTimeout);
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| 373 |
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| 374 | /* Check the communication status */
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| 375 | if(status != HAL_OK)
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| 376 | {
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| 377 | /* Execute user timeout callback */
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| 378 | SPIx_Error();
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| 379 | }
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| 380 |
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| 381 | return readvalue;
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| 382 | }
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| 383 |
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| 384 | /**
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| 385 | * @brief SPI Write a byte to device.
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| 386 | * @param Value: value to be written
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| 387 | * @retval None
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| 388 | */
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| 389 | static void SPIx_Write(uint8_t Value)
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| 390 | {
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| 391 | HAL_StatusTypeDef status = HAL_OK;
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| 392 |
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| 393 | status = HAL_SPI_Transmit(&hnucleo_Spi, (uint8_t*) &Value, 1, SpixTimeout);
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| 394 |
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| 395 | /* Check the communication status */
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| 396 | if(status != HAL_OK)
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| 397 | {
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| 398 | /* Execute user timeout callback */
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| 399 | SPIx_Error();
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| 400 | }
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| 401 | }
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| 402 |
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| 403 | /**
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| 404 | * @brief SPI error treatment function.
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| 405 | * @param None
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| 406 | * @retval None
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| 407 | */
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| 408 | static void SPIx_Error (void)
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| 409 | {
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| 410 | /* De-initialize the SPI communication BUS */
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| 411 | HAL_SPI_DeInit(&hnucleo_Spi);
|
---|
| 412 |
|
---|
| 413 | /* Re-Initiaize the SPI communication BUS */
|
---|
| 414 | SPIx_Init();
|
---|
| 415 | }
|
---|
| 416 |
|
---|
| 417 | /******************************************************************************
|
---|
| 418 | LINK OPERATIONS
|
---|
| 419 | *******************************************************************************/
|
---|
| 420 |
|
---|
| 421 | /********************************* LINK SD ************************************/
|
---|
| 422 | /**
|
---|
| 423 | * @brief Initializes the SD Card and put it into StandBy State (Ready for
|
---|
| 424 | * data transfer).
|
---|
| 425 | * @param None
|
---|
| 426 | * @retval None
|
---|
| 427 | */
|
---|
| 428 | void SD_IO_Init(void)
|
---|
| 429 | {
|
---|
| 430 | GPIO_InitTypeDef GPIO_InitStruct;
|
---|
| 431 | uint8_t counter;
|
---|
| 432 |
|
---|
| 433 | /* SD_CS_GPIO Periph clock enable */
|
---|
| 434 | SD_CS_GPIO_CLK_ENABLE();
|
---|
| 435 |
|
---|
| 436 | /* Configure SD_CS_PIN pin: SD Card CS pin */
|
---|
| 437 | GPIO_InitStruct.Pin = SD_CS_PIN;
|
---|
| 438 | GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
|
---|
| 439 | GPIO_InitStruct.Pull = GPIO_PULLUP;
|
---|
| 440 | GPIO_InitStruct.Speed = GPIO_SPEED_HIGH;
|
---|
| 441 | HAL_GPIO_Init(SD_CS_GPIO_PORT, &GPIO_InitStruct);
|
---|
| 442 |
|
---|
| 443 | /*------------Put SD in SPI mode--------------*/
|
---|
| 444 | /* SD SPI Config */
|
---|
| 445 | SPIx_Init();
|
---|
| 446 |
|
---|
| 447 | /* SD chip select high */
|
---|
| 448 | SD_CS_HIGH();
|
---|
| 449 |
|
---|
| 450 | /* Send dummy byte 0xFF, 10 times with CS high */
|
---|
| 451 | /* Rise CS and MOSI for 80 clocks cycles */
|
---|
| 452 | for (counter = 0; counter <= 9; counter++)
|
---|
| 453 | {
|
---|
| 454 | /* Send dummy byte 0xFF */
|
---|
| 455 | SD_IO_WriteByte(SD_DUMMY_BYTE);
|
---|
| 456 | }
|
---|
| 457 | }
|
---|
| 458 |
|
---|
| 459 | /**
|
---|
| 460 | * @brief Writes a byte on the SD.
|
---|
| 461 | * @param Data: byte to send.
|
---|
| 462 | * @retval None
|
---|
| 463 | */
|
---|
| 464 | void SD_IO_WriteByte(uint8_t Data)
|
---|
| 465 | {
|
---|
| 466 | /* Send the byte */
|
---|
| 467 | SPIx_Write(Data);
|
---|
| 468 | }
|
---|
| 469 |
|
---|
| 470 | /**
|
---|
| 471 | * @brief Reads a byte from the SD.
|
---|
| 472 | * @param None
|
---|
| 473 | * @retval The received byte.
|
---|
| 474 | */
|
---|
| 475 | uint8_t SD_IO_ReadByte(void)
|
---|
| 476 | {
|
---|
| 477 | uint8_t data = 0;
|
---|
| 478 |
|
---|
| 479 | /* Get the received data */
|
---|
| 480 | data = SPIx_Read();
|
---|
| 481 |
|
---|
| 482 | /* Return the shifted data */
|
---|
| 483 | return data;
|
---|
| 484 | }
|
---|
| 485 |
|
---|
| 486 | /**
|
---|
| 487 | * @brief Sends 5 bytes command to the SD card and get response.
|
---|
| 488 | * @param Cmd: The user expected command to send to SD card.
|
---|
| 489 | * @param Arg: The command argument
|
---|
| 490 | * @param Crc: The CRC
|
---|
| 491 | * @param Response: Expected response from the SD card
|
---|
| 492 | * @retval HAL_StatusTypeDef HAL Status
|
---|
| 493 | */
|
---|
| 494 | HAL_StatusTypeDef SD_IO_WriteCmd(uint8_t Cmd, uint32_t Arg, uint8_t Crc, uint8_t Response)
|
---|
| 495 | {
|
---|
| 496 | uint32_t counter = 0x00;
|
---|
| 497 | uint8_t frame[6];
|
---|
| 498 |
|
---|
| 499 | /* Prepare Frame to send */
|
---|
| 500 | frame[0] = (Cmd | 0x40); /* Construct byte 1 */
|
---|
| 501 | frame[1] = (uint8_t)(Arg >> 24); /* Construct byte 2 */
|
---|
| 502 | frame[2] = (uint8_t)(Arg >> 16); /* Construct byte 3 */
|
---|
| 503 | frame[3] = (uint8_t)(Arg >> 8); /* Construct byte 4 */
|
---|
| 504 | frame[4] = (uint8_t)(Arg); /* Construct byte 5 */
|
---|
| 505 | frame[5] = (Crc); /* Construct byte 6 */
|
---|
| 506 |
|
---|
| 507 | /* SD chip select low */
|
---|
| 508 | SD_CS_LOW();
|
---|
| 509 |
|
---|
| 510 | /* Send Frame */
|
---|
| 511 | for (counter = 0; counter < 6; counter++)
|
---|
| 512 | {
|
---|
| 513 | SD_IO_WriteByte(frame[counter]); /* Send the Cmd bytes */
|
---|
| 514 | }
|
---|
| 515 |
|
---|
| 516 | if(Response != SD_NO_RESPONSE_EXPECTED)
|
---|
| 517 | {
|
---|
| 518 | return SD_IO_WaitResponse(Response);
|
---|
| 519 | }
|
---|
| 520 |
|
---|
| 521 | return HAL_OK;
|
---|
| 522 | }
|
---|
| 523 |
|
---|
| 524 | /**
|
---|
| 525 | * @brief Waits response from the SD card
|
---|
| 526 | * @param Response: Expected response from the SD card
|
---|
| 527 | * @retval HAL_StatusTypeDef HAL Status
|
---|
| 528 | */
|
---|
| 529 | HAL_StatusTypeDef SD_IO_WaitResponse(uint8_t Response)
|
---|
| 530 | {
|
---|
| 531 | uint32_t timeout = 0xFFFF;
|
---|
| 532 |
|
---|
| 533 | /* Check if response is got or a timeout is happen */
|
---|
| 534 | while ((SD_IO_ReadByte() != Response) && timeout)
|
---|
| 535 | {
|
---|
| 536 | timeout--;
|
---|
| 537 | }
|
---|
| 538 |
|
---|
| 539 | if (timeout == 0)
|
---|
| 540 | {
|
---|
| 541 | /* After time out */
|
---|
| 542 | return HAL_TIMEOUT;
|
---|
| 543 | }
|
---|
| 544 | else
|
---|
| 545 | {
|
---|
| 546 | /* Right response got */
|
---|
| 547 | return HAL_OK;
|
---|
| 548 | }
|
---|
| 549 | }
|
---|
| 550 |
|
---|
| 551 | /**
|
---|
| 552 | * @brief Sends dummy byte with CS High.
|
---|
| 553 | * @param None
|
---|
| 554 | * @retval None
|
---|
| 555 | */
|
---|
| 556 | void SD_IO_WriteDummy(void)
|
---|
| 557 | {
|
---|
| 558 | /* SD chip select high */
|
---|
| 559 | SD_CS_HIGH();
|
---|
| 560 |
|
---|
| 561 | /* Send Dummy byte 0xFF */
|
---|
| 562 | SD_IO_WriteByte(SD_DUMMY_BYTE);
|
---|
| 563 | }
|
---|
| 564 |
|
---|
| 565 | /********************************* LINK LCD ***********************************/
|
---|
| 566 | /**
|
---|
| 567 | * @brief Initializes the LCD.
|
---|
| 568 | * @param None
|
---|
| 569 | * @retval None
|
---|
| 570 | */
|
---|
| 571 | void LCD_IO_Init(void)
|
---|
| 572 | {
|
---|
| 573 | GPIO_InitTypeDef GPIO_InitStruct;
|
---|
| 574 |
|
---|
| 575 | /* LCD_CS_GPIO and LCD_DC_GPIO Periph clock enable */
|
---|
| 576 | LCD_CS_GPIO_CLK_ENABLE();
|
---|
| 577 | LCD_DC_GPIO_CLK_ENABLE();
|
---|
| 578 |
|
---|
| 579 | /* Configure LCD_CS_PIN pin: LCD Card CS pin */
|
---|
| 580 | GPIO_InitStruct.Pin = LCD_CS_PIN;
|
---|
| 581 | GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
|
---|
| 582 | GPIO_InitStruct.Pull = GPIO_NOPULL;
|
---|
| 583 | GPIO_InitStruct.Speed = GPIO_SPEED_HIGH;
|
---|
| 584 | HAL_GPIO_Init(SD_CS_GPIO_PORT, &GPIO_InitStruct);
|
---|
| 585 |
|
---|
| 586 | /* Configure LCD_DC_PIN pin: LCD Card DC pin */
|
---|
| 587 | GPIO_InitStruct.Pin = LCD_DC_PIN;
|
---|
| 588 | HAL_GPIO_Init(LCD_DC_GPIO_PORT, &GPIO_InitStruct);
|
---|
| 589 |
|
---|
| 590 | /* LCD chip select high */
|
---|
| 591 | LCD_CS_HIGH();
|
---|
| 592 |
|
---|
| 593 | /* LCD SPI Config */
|
---|
| 594 | SPIx_Init();
|
---|
| 595 | }
|
---|
| 596 |
|
---|
| 597 | /**
|
---|
| 598 | * @brief Writes command to select the LCD register.
|
---|
| 599 | * @param LCDReg: Address of the selected register.
|
---|
| 600 | * @retval None
|
---|
| 601 | */
|
---|
| 602 | void LCD_IO_WriteReg(uint8_t LCDReg)
|
---|
| 603 | {
|
---|
| 604 | /* Reset LCD control line CS */
|
---|
| 605 | LCD_CS_LOW();
|
---|
| 606 |
|
---|
| 607 | /* Set LCD data/command line DC to Low */
|
---|
| 608 | LCD_DC_LOW();
|
---|
| 609 |
|
---|
| 610 | /* Send Command */
|
---|
| 611 | SPIx_Write(LCDReg);
|
---|
| 612 |
|
---|
| 613 | /* Deselect : Chip Select high */
|
---|
| 614 | LCD_CS_HIGH();
|
---|
| 615 | }
|
---|
| 616 |
|
---|
| 617 | /**
|
---|
| 618 | * @brief Writes data to select the LCD register.
|
---|
| 619 | * This function must be used after st7735_WriteReg() function
|
---|
| 620 | * @param Data: data to write to the selected register.
|
---|
| 621 | * @retval None
|
---|
| 622 | */
|
---|
| 623 | void LCD_IO_WriteData(uint8_t Data)
|
---|
| 624 | {
|
---|
| 625 | /* Reset LCD control line CS */
|
---|
| 626 | LCD_CS_LOW();
|
---|
| 627 |
|
---|
| 628 | /* Set LCD data/command line DC to High */
|
---|
| 629 | LCD_DC_HIGH();
|
---|
| 630 |
|
---|
| 631 | /* Send Data */
|
---|
| 632 | SPIx_Write(Data);
|
---|
| 633 |
|
---|
| 634 | /* Deselect : Chip Select high */
|
---|
| 635 | LCD_CS_HIGH();
|
---|
| 636 | }
|
---|
| 637 |
|
---|
| 638 | /**
|
---|
| 639 | * @brief Writes register value.
|
---|
| 640 | * @param pData: Pointer on the register value
|
---|
| 641 | * @param Size: Size of byte to transmit to the register
|
---|
| 642 | * @retval None
|
---|
| 643 | */
|
---|
| 644 | void LCD_IO_WriteMultipleData(uint8_t *pData, uint32_t Size)
|
---|
| 645 | {
|
---|
| 646 | uint32_t counter = 0;
|
---|
| 647 |
|
---|
| 648 | /* Reset LCD control line CS */
|
---|
| 649 | LCD_CS_LOW();
|
---|
| 650 |
|
---|
| 651 | /* Set LCD data/command line DC to High */
|
---|
| 652 | LCD_DC_HIGH();
|
---|
| 653 |
|
---|
| 654 | if (Size == 1)
|
---|
| 655 | {
|
---|
| 656 | /* Only 1 byte to be sent to LCD - general interface can be used */
|
---|
| 657 | /* Send Data */
|
---|
| 658 | SPIx_Write(*pData);
|
---|
| 659 | }
|
---|
| 660 | else
|
---|
| 661 | {
|
---|
| 662 | /* Several data should be sent in a raw */
|
---|
| 663 | /* Direct SPI accesses for optimization */
|
---|
| 664 | for (counter = Size; counter != 0; counter--)
|
---|
| 665 | {
|
---|
| 666 | while(((hnucleo_Spi.Instance->SR) & SPI_FLAG_TXE) != SPI_FLAG_TXE)
|
---|
| 667 | {
|
---|
| 668 | }
|
---|
| 669 | /* Need to invert bytes for LCD*/
|
---|
| 670 | *((__IO uint8_t*)&hnucleo_Spi.Instance->DR) = *(pData+1);
|
---|
| 671 |
|
---|
| 672 | while(((hnucleo_Spi.Instance->SR) & SPI_FLAG_TXE) != SPI_FLAG_TXE)
|
---|
| 673 | {
|
---|
| 674 | }
|
---|
| 675 | *((__IO uint8_t*)&hnucleo_Spi.Instance->DR) = *pData;
|
---|
| 676 | counter--;
|
---|
| 677 | pData += 2;
|
---|
| 678 | }
|
---|
| 679 |
|
---|
| 680 | /* Wait until the bus is ready before releasing Chip select */
|
---|
| 681 | while(((hnucleo_Spi.Instance->SR) & SPI_FLAG_BSY) != RESET)
|
---|
| 682 | {
|
---|
| 683 | }
|
---|
| 684 | }
|
---|
| 685 |
|
---|
| 686 | /* Deselect : Chip Select high */
|
---|
| 687 | LCD_CS_HIGH();
|
---|
| 688 | }
|
---|
| 689 |
|
---|
| 690 | /**
|
---|
| 691 | * @brief Wait for loop in ms.
|
---|
| 692 | * @param Delay in ms.
|
---|
| 693 | * @retval None
|
---|
| 694 | */
|
---|
| 695 | void LCD_Delay(uint32_t Delay)
|
---|
| 696 | {
|
---|
| 697 | HAL_Delay(Delay);
|
---|
| 698 | }
|
---|
| 699 |
|
---|
| 700 | /******************************* LINK JOYSTICK ********************************/
|
---|
| 701 | /**
|
---|
| 702 | * @brief Initializes ADC MSP.
|
---|
| 703 | * @param None
|
---|
| 704 | * @retval None
|
---|
| 705 | */
|
---|
| 706 | static void ADCx_MspInit(ADC_HandleTypeDef *hadc)
|
---|
| 707 | {
|
---|
| 708 | GPIO_InitTypeDef GPIO_InitStruct;
|
---|
| 709 |
|
---|
| 710 | /*** Configure the GPIOs ***/
|
---|
| 711 | /* Enable GPIO clock */
|
---|
| 712 | NUCLEO_ADCx_GPIO_CLK_ENABLE();
|
---|
| 713 |
|
---|
| 714 | /* Configure the selected ADC Channel as analog input */
|
---|
| 715 | GPIO_InitStruct.Pin = NUCLEO_ADCx_GPIO_PIN ;
|
---|
| 716 | GPIO_InitStruct.Mode = GPIO_MODE_ANALOG;
|
---|
| 717 | GPIO_InitStruct.Pull = GPIO_NOPULL;
|
---|
| 718 | HAL_GPIO_Init(NUCLEO_ADCx_GPIO_PORT, &GPIO_InitStruct);
|
---|
| 719 |
|
---|
| 720 | /*** Configure the ADC peripheral ***/
|
---|
| 721 | /* Enable ADC clock */
|
---|
| 722 | NUCLEO_ADCx_CLK_ENABLE();
|
---|
| 723 | }
|
---|
| 724 |
|
---|
| 725 | /**
|
---|
| 726 | * @brief Initializes ADC HAL.
|
---|
| 727 | * @param None
|
---|
| 728 | * @retval None
|
---|
| 729 | */
|
---|
| 730 | static void ADCx_Init(void)
|
---|
| 731 | {
|
---|
| 732 | if(HAL_ADC_GetState(&hnucleo_Adc) == HAL_ADC_STATE_RESET)
|
---|
| 733 | {
|
---|
| 734 | /* ADC Config */
|
---|
| 735 | hnucleo_Adc.Instance = NUCLEO_ADCx;
|
---|
| 736 | hnucleo_Adc.Init.ClockPrescaler = ADC_CLOCKPRESCALER_PCLK_DIV4; /* (must not exceed 36MHz) */
|
---|
| 737 | hnucleo_Adc.Init.Resolution = ADC_RESOLUTION12b;
|
---|
| 738 | hnucleo_Adc.Init.DataAlign = ADC_DATAALIGN_RIGHT;
|
---|
| 739 | hnucleo_Adc.Init.ContinuousConvMode = DISABLE;
|
---|
| 740 | hnucleo_Adc.Init.DiscontinuousConvMode = DISABLE;
|
---|
| 741 | hnucleo_Adc.Init.ExternalTrigConvEdge = ADC_EXTERNALTRIGCONVEDGE_NONE;
|
---|
| 742 | hnucleo_Adc.Init.EOCSelection = EOC_SINGLE_CONV;
|
---|
| 743 | hnucleo_Adc.Init.NbrOfConversion = 1;
|
---|
| 744 | hnucleo_Adc.Init.DMAContinuousRequests = DISABLE;
|
---|
| 745 |
|
---|
| 746 | ADCx_MspInit(&hnucleo_Adc);
|
---|
| 747 | HAL_ADC_Init(&hnucleo_Adc);
|
---|
| 748 | }
|
---|
| 749 | }
|
---|
| 750 |
|
---|
| 751 | /**
|
---|
| 752 | * @brief Configures joystick available on adafruit 1.8" TFT shield
|
---|
| 753 | * managed through ADC to detect motion.
|
---|
| 754 | * @param None
|
---|
| 755 | * @retval Joystickstatus (0=> success, 1=> fail)
|
---|
| 756 | */
|
---|
| 757 | uint8_t BSP_JOY_Init(void)
|
---|
| 758 | {
|
---|
| 759 | uint8_t status = 1;
|
---|
| 760 |
|
---|
| 761 | ADCx_Init();
|
---|
| 762 |
|
---|
| 763 | /* Select the ADC Channel to be converted */
|
---|
| 764 | sConfig.Channel = NUCLEO_ADCx_CHANNEL;
|
---|
| 765 | sConfig.SamplingTime = ADC_SAMPLETIME_3CYCLES;
|
---|
| 766 | sConfig.Rank = 1;
|
---|
| 767 | status = HAL_ADC_ConfigChannel(&hnucleo_Adc, &sConfig);
|
---|
| 768 |
|
---|
| 769 | /* Return Joystick initialization status */
|
---|
| 770 | return status;
|
---|
| 771 | }
|
---|
| 772 |
|
---|
| 773 | /**
|
---|
| 774 | * @brief Returns the Joystick key pressed.
|
---|
| 775 | * @note To know which Joystick key is pressed we need to detect the voltage
|
---|
| 776 | * level on each key output
|
---|
| 777 | * - None : 3.3 V / 4095
|
---|
| 778 | * - SEL : 1.055 V / 1308
|
---|
| 779 | * - DOWN : 0.71 V / 88
|
---|
| 780 | * - LEFT : 3.0 V / 3720
|
---|
| 781 | * - RIGHT : 0.595 V / 737
|
---|
| 782 | * - UP : 1.65 V / 2046
|
---|
| 783 | * @retval JOYState_TypeDef: Code of the Joystick key pressed.
|
---|
| 784 | */
|
---|
| 785 | JOYState_TypeDef BSP_JOY_GetState(void)
|
---|
| 786 | {
|
---|
| 787 | JOYState_TypeDef state;
|
---|
| 788 | uint16_t keyconvertedvalue = 0;
|
---|
| 789 |
|
---|
| 790 | /* Start the conversion process */
|
---|
| 791 | HAL_ADC_Start(&hnucleo_Adc);
|
---|
| 792 |
|
---|
| 793 | /* Wait for the end of conversion */
|
---|
| 794 | HAL_ADC_PollForConversion(&hnucleo_Adc, 10);
|
---|
| 795 |
|
---|
| 796 | /* Check if the continuous conversion of regular channel is finished */
|
---|
| 797 | if(HAL_ADC_GetState(&hnucleo_Adc) == HAL_ADC_STATE_EOC_REG)
|
---|
| 798 | {
|
---|
| 799 | /* Get the converted value of regular channel */
|
---|
| 800 | keyconvertedvalue = HAL_ADC_GetValue(&hnucleo_Adc);
|
---|
| 801 | }
|
---|
| 802 |
|
---|
| 803 | if((keyconvertedvalue > 2010) && (keyconvertedvalue < 2090))
|
---|
| 804 | {
|
---|
| 805 | state = JOY_UP;
|
---|
| 806 | }
|
---|
| 807 | else if((keyconvertedvalue > 680) && (keyconvertedvalue < 780))
|
---|
| 808 | {
|
---|
| 809 | state = JOY_RIGHT;
|
---|
| 810 | }
|
---|
| 811 | else if((keyconvertedvalue > 1270) && (keyconvertedvalue < 1350))
|
---|
| 812 | {
|
---|
| 813 | state = JOY_SEL;
|
---|
| 814 | }
|
---|
| 815 | else if((keyconvertedvalue > 50) && (keyconvertedvalue < 130))
|
---|
| 816 | {
|
---|
| 817 | state = JOY_DOWN;
|
---|
| 818 | }
|
---|
| 819 | else if((keyconvertedvalue > 3680) && (keyconvertedvalue < 3760))
|
---|
| 820 | {
|
---|
| 821 | state = JOY_LEFT;
|
---|
| 822 | }
|
---|
| 823 | else
|
---|
| 824 | {
|
---|
| 825 | state = JOY_NONE;
|
---|
| 826 | }
|
---|
| 827 |
|
---|
| 828 | /* Loop while a key is pressed */
|
---|
| 829 | if(state != JOY_NONE)
|
---|
| 830 | {
|
---|
| 831 | keyconvertedvalue = HAL_ADC_GetValue(&hnucleo_Adc);
|
---|
| 832 | }
|
---|
| 833 | /* Return the code of the Joystick key pressed */
|
---|
| 834 | return state;
|
---|
| 835 | }
|
---|
| 836 |
|
---|
| 837 | /**
|
---|
| 838 | * @}
|
---|
| 839 | */
|
---|
| 840 |
|
---|
| 841 | /**
|
---|
| 842 | * @}
|
---|
| 843 | */
|
---|
| 844 |
|
---|
| 845 | /**
|
---|
| 846 | * @}
|
---|
| 847 | */
|
---|
| 848 |
|
---|
| 849 | /**
|
---|
| 850 | * @}
|
---|
| 851 | */
|
---|
| 852 |
|
---|
| 853 | /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
|
---|
| 854 | #endif
|
---|