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- /**
- ******************************************************************************
- * @file stm32f4xx_nucleo.c
- * @author MCD Application Team
- * @brief This file provides set of firmware functions to manage:
- * - LEDs and push-button available on STM32F4XX-Nucleo Kit
- * from STMicroelectronics
- * - LCD, joystick and microSD available on Adafruit 1.8" TFT LCD
- * shield (reference ID 802)
- ******************************************************************************
- * @attention
- *
- * <h2><center>© COPYRIGHT(c) 2017 STMicroelectronics</center></h2>
- *
- * Redistribution and use in source and binary forms, with or without modification,
- * are permitted provided that the following conditions are met:
- * 1. Redistributions of source code must retain the above copyright notice,
- * this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright notice,
- * this list of conditions and the following disclaimer in the documentation
- * and/or other materials provided with the distribution.
- * 3. Neither the name of STMicroelectronics nor the names of its contributors
- * may be used to endorse or promote products derived from this software
- * without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
- * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
- * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
- * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
- * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
- * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- ******************************************************************************
- */
-
- /* Includes ------------------------------------------------------------------*/
- #include "stm32f4xx_nucleo.h"
-
- /** @defgroup BSP BSP
- * @{
- */
-
- /** @defgroup STM32F4XX_NUCLEO STM32F4XX NUCLEO
- * @{
- */
-
- /** @defgroup STM32F4XX_NUCLEO_LOW_LEVEL STM32F4XX NUCLEO LOW LEVEL
- * @brief This file provides set of firmware functions to manage Leds and push-button
- * available on STM32F4xx-Nucleo Kit from STMicroelectronics.
- * @{
- */
-
- /** @defgroup STM32F4XX_NUCLEO_LOW_LEVEL_Private_TypesDefinitions STM32F4XX NUCLEO LOW LEVEL Private TypesDefinitions
- * @{
- */
- /**
- * @}
- */
-
-
- /** @defgroup STM32F4XX_NUCLEO_LOW_LEVEL_Private_Defines STM32F4XX NUCLEO LOW LEVEL Private Defines
- * @{
- */
-
- /**
- * @brief STM32F4xx NUCLEO BSP Driver version number V1.2.7
- */
- #define __STM32F4xx_NUCLEO_BSP_VERSION_MAIN (0x01) /*!< [31:24] main version */
- #define __STM32F4xx_NUCLEO_BSP_VERSION_SUB1 (0x02) /*!< [23:16] sub1 version */
- #define __STM32F4xx_NUCLEO_BSP_VERSION_SUB2 (0x07) /*!< [15:8] sub2 version */
- #define __STM32F4xx_NUCLEO_BSP_VERSION_RC (0x00) /*!< [7:0] release candidate */
- #define __STM32F4xx_NUCLEO_BSP_VERSION ((__STM32F4xx_NUCLEO_BSP_VERSION_MAIN << 24)\
- |(__STM32F4xx_NUCLEO_BSP_VERSION_SUB1 << 16)\
- |(__STM32F4xx_NUCLEO_BSP_VERSION_SUB2 << 8 )\
- |(__STM32F4xx_NUCLEO_BSP_VERSION_RC))
-
- /**
- * @brief LINK SD Card
- */
- #define SD_DUMMY_BYTE 0xFF
- #define SD_NO_RESPONSE_EXPECTED 0x80
-
- /**
- * @}
- */
-
- /** @defgroup STM32F4XX_NUCLEO_LOW_LEVEL_Private_Macros STM32F4XX NUCLEO LOW LEVEL Private Macros
- * @{
- */
- /**
- * @}
- */
-
- /** @defgroup STM32F4XX_NUCLEO_LOW_LEVEL_Private_Variables STM32F4XX NUCLEO LOW LEVEL Private Variables
- * @{
- */
- GPIO_TypeDef* GPIO_PORT[LEDn] = {LED2_GPIO_PORT};
-
- const uint16_t GPIO_PIN[LEDn] = {LED2_PIN};
-
- GPIO_TypeDef* BUTTON_PORT[BUTTONn] = {KEY_BUTTON_GPIO_PORT};
- const uint16_t BUTTON_PIN[BUTTONn] = {KEY_BUTTON_PIN};
- const uint8_t BUTTON_IRQn[BUTTONn] = {KEY_BUTTON_EXTI_IRQn};
-
- /**
- * @brief BUS variables
- */
-
- #ifdef ADAFRUIT_TFT_JOY_SD_ID802
- #ifdef HAL_SPI_MODULE_ENABLED
- uint32_t SpixTimeout = NUCLEO_SPIx_TIMEOUT_MAX; /*<! Value of Timeout when SPI communication fails */
- static SPI_HandleTypeDef hnucleo_Spi;
- #endif /* HAL_SPI_MODULE_ENABLED */
-
- #ifdef HAL_ADC_MODULE_ENABLED
- static ADC_HandleTypeDef hnucleo_Adc;
- /* ADC channel configuration structure declaration */
- static ADC_ChannelConfTypeDef sConfig;
- #endif /* HAL_ADC_MODULE_ENABLED */
- #endif /* ADAFRUIT_TFT_JOY_SD_ID802 */
-
- /**
- * @}
- */
-
- /** @defgroup STM32F4XX_NUCLEO_LOW_LEVEL_Private_FunctionPrototypes STM32F4XX NUCLEO LOW LEVEL Private FunctionPrototypes
- * @{
- */
- #ifdef ADAFRUIT_TFT_JOY_SD_ID802
-
- #ifdef HAL_SPI_MODULE_ENABLED
- static void SPIx_Init(void);
- static void SPIx_Write(uint8_t Value);
- static void SPIx_WriteReadData(const uint8_t *DataIn, uint8_t *DataOut, uint16_t DataLegnth);
- static void SPIx_Error(void);
- static void SPIx_MspInit(SPI_HandleTypeDef *hspi);
-
- /* SD IO functions */
- void SD_IO_Init(void);
- void SD_IO_CSState(uint8_t state);
- void SD_IO_WriteReadData(const uint8_t *DataIn, uint8_t *DataOut, uint16_t DataLength);
- uint8_t SD_IO_WriteByte(uint8_t Data);
-
- /* LCD IO functions */
- void LCD_IO_Init(void);
- void LCD_IO_WriteData(uint8_t Data);
- void LCD_IO_WriteMultipleData(uint8_t *pData, uint32_t Size);
- void LCD_IO_WriteReg(uint8_t LCDReg);
- void LCD_Delay(uint32_t delay);
- #endif /* HAL_SPI_MODULE_ENABLED */
-
- #ifdef HAL_ADC_MODULE_ENABLED
- static void ADCx_Init(void);
- static void ADCx_DeInit(void);
- static void ADCx_MspInit(ADC_HandleTypeDef *hadc);
- static void ADCx_MspDeInit(ADC_HandleTypeDef *hadc);
- #endif /* HAL_ADC_MODULE_ENABLED */
-
- #endif /* ADAFRUIT_TFT_JOY_SD_ID802 */
-
- /**
- * @}
- */
-
- /** @defgroup STM32F4XX_NUCLEO_LOW_LEVEL_Private_Functions STM32F4XX NUCLEO LOW LEVEL Private Functions
- * @{
- */
-
- /**
- * @brief This method returns the STM32F4xx NUCLEO BSP Driver revision
- * @retval version: 0xXYZR (8bits for each decimal, R for RC)
- */
- uint32_t BSP_GetVersion(void)
- {
- return __STM32F4xx_NUCLEO_BSP_VERSION;
- }
-
- /**
- * @brief Configures LED GPIO.
- * @param Led: Specifies the Led to be configured.
- * This parameter can be one of following parameters:
- * @arg LED2
- */
- void BSP_LED_Init(Led_TypeDef Led)
- {
- GPIO_InitTypeDef GPIO_InitStruct;
-
- /* Enable the GPIO_LED Clock */
- LEDx_GPIO_CLK_ENABLE(Led);
-
- /* Configure the GPIO_LED pin */
- GPIO_InitStruct.Pin = GPIO_PIN[Led];
- GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
- GPIO_InitStruct.Pull = GPIO_NOPULL;
- GPIO_InitStruct.Speed = GPIO_SPEED_FAST;
-
- HAL_GPIO_Init(GPIO_PORT[Led], &GPIO_InitStruct);
-
- HAL_GPIO_WritePin(GPIO_PORT[Led], GPIO_PIN[Led], GPIO_PIN_RESET);
- }
-
- /**
- * @brief DeInit LEDs.
- * @param Led: LED to be de-init.
- * This parameter can be one of the following values:
- * @arg LED2
- * @note Led DeInit does not disable the GPIO clock nor disable the Mfx
- */
- void BSP_LED_DeInit(Led_TypeDef Led)
- {
- GPIO_InitTypeDef gpio_init_structure;
-
- /* Turn off LED */
- HAL_GPIO_WritePin(GPIO_PORT[Led], GPIO_PIN[Led], GPIO_PIN_RESET);
- /* DeInit the GPIO_LED pin */
- gpio_init_structure.Pin = GPIO_PIN[Led];
- HAL_GPIO_DeInit(GPIO_PORT[Led], gpio_init_structure.Pin);
- }
-
- /**
- * @brief Turns selected LED On.
- * @param Led: Specifies the Led to be set on.
- * This parameter can be one of following parameters:
- * @arg LED2
- */
- void BSP_LED_On(Led_TypeDef Led)
- {
- HAL_GPIO_WritePin(GPIO_PORT[Led], GPIO_PIN[Led], GPIO_PIN_SET);
- }
-
- /**
- * @brief Turns selected LED Off.
- * @param Led: Specifies the Led to be set off.
- * This parameter can be one of following parameters:
- * @arg LED2
- */
- void BSP_LED_Off(Led_TypeDef Led)
- {
- HAL_GPIO_WritePin(GPIO_PORT[Led], GPIO_PIN[Led], GPIO_PIN_RESET);
- }
-
- /**
- * @brief Toggles the selected LED.
- * @param Led: Specifies the Led to be toggled.
- * This parameter can be one of following parameters:
- * @arg LED2
- */
- void BSP_LED_Toggle(Led_TypeDef Led)
- {
- HAL_GPIO_TogglePin(GPIO_PORT[Led], GPIO_PIN[Led]);
- }
-
- /**
- * @brief Configures Button GPIO and EXTI Line.
- * @param Button: Specifies the Button to be configured.
- * This parameter should be: BUTTON_KEY
- * @param ButtonMode: Specifies Button mode.
- * This parameter can be one of following parameters:
- * @arg BUTTON_MODE_GPIO: Button will be used as simple IO
- * @arg BUTTON_MODE_EXTI: Button will be connected to EXTI line with interrupt
- * generation capability
- */
- void BSP_PB_Init(Button_TypeDef Button, ButtonMode_TypeDef ButtonMode)
- {
- GPIO_InitTypeDef GPIO_InitStruct;
-
- /* Enable the BUTTON Clock */
- BUTTONx_GPIO_CLK_ENABLE(Button);
-
- if(ButtonMode == BUTTON_MODE_GPIO)
- {
- /* Configure Button pin as input */
- GPIO_InitStruct.Pin = BUTTON_PIN[Button];
- GPIO_InitStruct.Mode = GPIO_MODE_INPUT;
- GPIO_InitStruct.Pull = GPIO_PULLDOWN;
- GPIO_InitStruct.Speed = GPIO_SPEED_FAST;
- HAL_GPIO_Init(BUTTON_PORT[Button], &GPIO_InitStruct);
- }
-
- if(ButtonMode == BUTTON_MODE_EXTI)
- {
- /* Configure Button pin as input with External interrupt */
- GPIO_InitStruct.Pin = BUTTON_PIN[Button];
- GPIO_InitStruct.Pull = GPIO_NOPULL;
- GPIO_InitStruct.Mode = GPIO_MODE_IT_FALLING;
- HAL_GPIO_Init(BUTTON_PORT[Button], &GPIO_InitStruct);
-
- /* Enable and set Button EXTI Interrupt to the lowest priority */
- HAL_NVIC_SetPriority((IRQn_Type)(BUTTON_IRQn[Button]), 0x0F, 0x00);
- HAL_NVIC_EnableIRQ((IRQn_Type)(BUTTON_IRQn[Button]));
- }
- }
-
- /**
- * @brief Push Button DeInit.
- * @param Button: Button to be configured
- * This parameter should be: BUTTON_KEY
- * @note PB DeInit does not disable the GPIO clock
- */
- void BSP_PB_DeInit(Button_TypeDef Button)
- {
- GPIO_InitTypeDef gpio_init_structure;
-
- gpio_init_structure.Pin = BUTTON_PIN[Button];
- HAL_NVIC_DisableIRQ((IRQn_Type)(BUTTON_IRQn[Button]));
- HAL_GPIO_DeInit(BUTTON_PORT[Button], gpio_init_structure.Pin);
- }
-
- /**
- * @brief Returns the selected Button state.
- * @param Button: Specifies the Button to be checked.
- * This parameter should be: BUTTON_KEY
- * @retval The Button GPIO pin value.
- */
- uint32_t BSP_PB_GetState(Button_TypeDef Button)
- {
- return HAL_GPIO_ReadPin(BUTTON_PORT[Button], BUTTON_PIN[Button]);
- }
-
- /******************************************************************************
- BUS OPERATIONS
- *******************************************************************************/
- #ifdef ADAFRUIT_TFT_JOY_SD_ID802
-
- /******************************* SPI ********************************/
- #ifdef HAL_SPI_MODULE_ENABLED
-
- /**
- * @brief Initializes SPI MSP.
- */
- static void SPIx_MspInit(SPI_HandleTypeDef *hspi)
- {
- GPIO_InitTypeDef GPIO_InitStruct;
-
- /*** Configure the GPIOs ***/
- /* Enable GPIO clock */
- NUCLEO_SPIx_SCK_GPIO_CLK_ENABLE();
- NUCLEO_SPIx_MISO_MOSI_GPIO_CLK_ENABLE();
-
- /* Configure SPI SCK */
- GPIO_InitStruct.Pin = NUCLEO_SPIx_SCK_PIN;
- GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
- GPIO_InitStruct.Pull = GPIO_PULLUP;
- GPIO_InitStruct.Speed = GPIO_SPEED_HIGH;
- GPIO_InitStruct.Alternate = NUCLEO_SPIx_SCK_AF;
- HAL_GPIO_Init(NUCLEO_SPIx_SCK_GPIO_PORT, &GPIO_InitStruct);
-
- /* Configure SPI MISO and MOSI */
- GPIO_InitStruct.Pin = NUCLEO_SPIx_MOSI_PIN;
- GPIO_InitStruct.Alternate = NUCLEO_SPIx_MISO_MOSI_AF;
- GPIO_InitStruct.Pull = GPIO_PULLDOWN;
- HAL_GPIO_Init(NUCLEO_SPIx_MISO_MOSI_GPIO_PORT, &GPIO_InitStruct);
-
- GPIO_InitStruct.Pin = NUCLEO_SPIx_MISO_PIN;
- GPIO_InitStruct.Pull = GPIO_PULLDOWN;
- HAL_GPIO_Init(NUCLEO_SPIx_MISO_MOSI_GPIO_PORT, &GPIO_InitStruct);
-
- /*** Configure the SPI peripheral ***/
- /* Enable SPI clock */
- NUCLEO_SPIx_CLK_ENABLE();
- }
-
- /**
- * @brief Initializes SPI HAL.
- */
- static void SPIx_Init(void)
- {
- if(HAL_SPI_GetState(&hnucleo_Spi) == HAL_SPI_STATE_RESET)
- {
- /* SPI Config */
- hnucleo_Spi.Instance = NUCLEO_SPIx;
- /* SPI baudrate is set to 12,5 MHz maximum (APB1/SPI_BaudRatePrescaler = 100/8 = 12,5 MHz)
- to verify these constraints:
- - ST7735 LCD SPI interface max baudrate is 15MHz for write and 6.66MHz for read
- Since the provided driver doesn't use read capability from LCD, only constraint
- on write baudrate is considered.
- - SD card SPI interface max baudrate is 25MHz for write/read
- - PCLK2 max frequency is 100 MHz
- */
- hnucleo_Spi.Init.BaudRatePrescaler = SPI_BAUDRATEPRESCALER_8;
- hnucleo_Spi.Init.Direction = SPI_DIRECTION_2LINES;
- hnucleo_Spi.Init.CLKPhase = SPI_PHASE_2EDGE;
- hnucleo_Spi.Init.CLKPolarity = SPI_POLARITY_HIGH;
- hnucleo_Spi.Init.CRCCalculation = SPI_CRCCALCULATION_DISABLED;
- hnucleo_Spi.Init.CRCPolynomial = 7;
- hnucleo_Spi.Init.DataSize = SPI_DATASIZE_8BIT;
- hnucleo_Spi.Init.FirstBit = SPI_FIRSTBIT_MSB;
- hnucleo_Spi.Init.NSS = SPI_NSS_SOFT;
- hnucleo_Spi.Init.TIMode = SPI_TIMODE_DISABLED;
- hnucleo_Spi.Init.Mode = SPI_MODE_MASTER;
-
- SPIx_MspInit(&hnucleo_Spi);
- HAL_SPI_Init(&hnucleo_Spi);
- }
- }
-
- /**
- * @brief SPI Write a byte to device
- * @param DataIn: value to be written
- * @param DataOut: value to be read
- * @param DataLegnth: length of data
- */
- static void SPIx_WriteReadData(const uint8_t *DataIn, uint8_t *DataOut, uint16_t DataLegnth)
- {
- HAL_StatusTypeDef status = HAL_OK;
-
- status = HAL_SPI_TransmitReceive(&hnucleo_Spi, (uint8_t*) DataIn, DataOut, DataLegnth, SpixTimeout);
-
- /* Check the communication status */
- if(status != HAL_OK)
- {
- /* Execute user timeout callback */
- SPIx_Error();
- }
- }
-
- /**
- * @brief SPI Write a byte to device.
- * @param Value: value to be written
- */
- static void SPIx_Write(uint8_t Value)
- {
- HAL_StatusTypeDef status = HAL_OK;
- uint8_t data;
-
- status = HAL_SPI_TransmitReceive(&hnucleo_Spi, (uint8_t*) &Value, &data, 1, SpixTimeout);
-
- /* Check the communication status */
- if(status != HAL_OK)
- {
- /* Execute user timeout callback */
- SPIx_Error();
- }
- }
-
- /**
- * @brief SPI error treatment function.
- */
- static void SPIx_Error (void)
- {
- /* De-initialize the SPI communication BUS */
- HAL_SPI_DeInit(&hnucleo_Spi);
-
- /* Re-Initiaize the SPI communication BUS */
- SPIx_Init();
- }
-
- /******************************************************************************
- LINK OPERATIONS
- *******************************************************************************/
-
- /********************************* LINK SD ************************************/
- /**
- * @brief Initializes the SD Card and put it into StandBy State (Ready for
- * data transfer).
- */
- void SD_IO_Init(void)
- {
- GPIO_InitTypeDef GPIO_InitStruct;
- uint8_t counter;
-
- /* SD_CS_GPIO Periph clock enable */
- SD_CS_GPIO_CLK_ENABLE();
-
- /* Configure SD_CS_PIN pin: SD Card CS pin */
- GPIO_InitStruct.Pin = SD_CS_PIN;
- GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
- GPIO_InitStruct.Pull = GPIO_PULLUP;
- GPIO_InitStruct.Speed = GPIO_SPEED_HIGH;
- HAL_GPIO_Init(SD_CS_GPIO_PORT, &GPIO_InitStruct);
-
- /*------------Put SD in SPI mode--------------*/
- /* SD SPI Config */
- SPIx_Init();
-
- /* SD chip select high */
- SD_CS_HIGH();
-
- /* Send dummy byte 0xFF, 10 times with CS high */
- /* Rise CS and MOSI for 80 clocks cycles */
- for (counter = 0; counter <= 9; counter++)
- {
- /* Send dummy byte 0xFF */
- SD_IO_WriteByte(SD_DUMMY_BYTE);
- }
- }
-
- /**
- * @brief Set the SD_CS pin.
- * @param val: pin value.
- */
- void SD_IO_CSState(uint8_t val)
- {
- if(val == 1)
- {
- SD_CS_HIGH();
- }
- else
- {
- SD_CS_LOW();
- }
- }
-
- /**
- * @brief Write a byte on the SD.
- * @param DataIn: value to be written
- * @param DataOut: value to be read
- * @param DataLength: length of data
- */
- void SD_IO_WriteReadData(const uint8_t *DataIn, uint8_t *DataOut, uint16_t DataLength)
- {
- /* Send the byte */
- SPIx_WriteReadData(DataIn, DataOut, DataLength);
- }
-
- /**
- * @brief Writes a byte on the SD.
- * @param Data: byte to send.
- */
- uint8_t SD_IO_WriteByte(uint8_t Data)
- {
- uint8_t tmp;
- /* Send the byte */
- SPIx_WriteReadData(&Data,&tmp,1);
- return tmp;
- }
-
- /********************************* LINK LCD ***********************************/
- /**
- * @brief Initializes the LCD.
- */
- void LCD_IO_Init(void)
- {
- GPIO_InitTypeDef GPIO_InitStruct;
-
- /* LCD_CS_GPIO and LCD_DC_GPIO Periph clock enable */
- LCD_CS_GPIO_CLK_ENABLE();
- LCD_DC_GPIO_CLK_ENABLE();
-
- /* Configure LCD_CS_PIN pin: LCD Card CS pin */
- GPIO_InitStruct.Pin = LCD_CS_PIN;
- GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
- GPIO_InitStruct.Pull = GPIO_NOPULL;
- GPIO_InitStruct.Speed = GPIO_SPEED_HIGH;
- HAL_GPIO_Init(LCD_CS_GPIO_PORT, &GPIO_InitStruct);
-
- /* Configure LCD_DC_PIN pin: LCD Card DC pin */
- GPIO_InitStruct.Pin = LCD_DC_PIN;
- HAL_GPIO_Init(LCD_DC_GPIO_PORT, &GPIO_InitStruct);
-
- /* LCD chip select high */
- LCD_CS_HIGH();
-
- /* LCD SPI Config */
- SPIx_Init();
- }
-
- /**
- * @brief Writes command to select the LCD register.
- * @param LCDReg: Address of the selected register.
- */
- void LCD_IO_WriteReg(uint8_t LCDReg)
- {
- /* Reset LCD control line CS */
- LCD_CS_LOW();
-
- /* Set LCD data/command line DC to Low */
- LCD_DC_LOW();
-
- /* Send Command */
- SPIx_Write(LCDReg);
-
- /* Deselect : Chip Select high */
- LCD_CS_HIGH();
- }
-
- /**
- * @brief Writes data to select the LCD register.
- * This function must be used after st7735_WriteReg() function
- * @param Data: data to write to the selected register.
- */
- void LCD_IO_WriteData(uint8_t Data)
- {
- /* Reset LCD control line CS */
- LCD_CS_LOW();
-
- /* Set LCD data/command line DC to High */
- LCD_DC_HIGH();
-
- /* Send Data */
- SPIx_Write(Data);
-
- /* Deselect : Chip Select high */
- LCD_CS_HIGH();
- }
-
- /**
- * @brief Writes register value.
- * @param pData: Pointer on the register value
- * @param Size: Size of byte to transmit to the register
- */
- void LCD_IO_WriteMultipleData(uint8_t *pData, uint32_t Size)
- {
- uint32_t counter = 0;
- __IO uint32_t data = 0;
-
- /* Reset LCD control line CS */
- LCD_CS_LOW();
-
- /* Set LCD data/command line DC to High */
- LCD_DC_HIGH();
-
- if (Size == 1)
- {
- /* Only 1 byte to be sent to LCD - general interface can be used */
- /* Send Data */
- SPIx_Write(*pData);
- }
- else
- {
- /* Several data should be sent in a raw */
- /* Direct SPI accesses for optimization */
- for (counter = Size; counter != 0; counter--)
- {
- while(((hnucleo_Spi.Instance->SR) & SPI_FLAG_TXE) != SPI_FLAG_TXE)
- {
- }
- /* Need to invert bytes for LCD*/
- *((__IO uint8_t*)&hnucleo_Spi.Instance->DR) = *(pData+1);
-
- while(((hnucleo_Spi.Instance->SR) & SPI_FLAG_TXE) != SPI_FLAG_TXE)
- {
- }
- *((__IO uint8_t*)&hnucleo_Spi.Instance->DR) = *pData;
- counter--;
- pData += 2;
- }
-
- /* Wait until the bus is ready before releasing Chip select */
- while(((hnucleo_Spi.Instance->SR) & SPI_FLAG_BSY) != RESET)
- {
- }
- }
-
- /* Empty the Rx fifo */
- data = *(&hnucleo_Spi.Instance->DR);
- UNUSED(data);
-
- /* Deselect : Chip Select high */
- LCD_CS_HIGH();
- }
-
- /**
- * @brief Wait for loop in ms.
- * @param Delay in ms.
- */
- void LCD_Delay(uint32_t Delay)
- {
- HAL_Delay(Delay);
- }
- #endif /* HAL_SPI_MODULE_ENABLED */
-
- /******************************* ADC driver ********************************/
- #ifdef HAL_ADC_MODULE_ENABLED
-
- /**
- * @brief Initializes ADC MSP.
- */
- static void ADCx_MspInit(ADC_HandleTypeDef *hadc)
- {
- GPIO_InitTypeDef GPIO_InitStruct;
-
- /*** Configure the GPIOs ***/
- /* Enable GPIO clock */
- NUCLEO_ADCx_GPIO_CLK_ENABLE();
-
- /* Configure the selected ADC Channel as analog input */
- GPIO_InitStruct.Pin = NUCLEO_ADCx_GPIO_PIN ;
- GPIO_InitStruct.Mode = GPIO_MODE_ANALOG;
- GPIO_InitStruct.Pull = GPIO_NOPULL;
- HAL_GPIO_Init(NUCLEO_ADCx_GPIO_PORT, &GPIO_InitStruct);
-
- /*** Configure the ADC peripheral ***/
- /* Enable ADC clock */
- NUCLEO_ADCx_CLK_ENABLE();
- }
-
- /**
- * @brief DeInitializes ADC MSP.
- * @note ADC DeInit does not disable the GPIO clock
- */
- static void ADCx_MspDeInit(ADC_HandleTypeDef *hadc)
- {
- GPIO_InitTypeDef GPIO_InitStruct;
-
- /*** DeInit the ADC peripheral ***/
- /* Disable ADC clock */
- NUCLEO_ADCx_CLK_DISABLE();
-
- /* Configure the selected ADC Channel as analog input */
- GPIO_InitStruct.Pin = NUCLEO_ADCx_GPIO_PIN ;
- HAL_GPIO_DeInit(NUCLEO_ADCx_GPIO_PORT, GPIO_InitStruct.Pin);
-
- /* Disable GPIO clock has to be done by the application*/
- /* NUCLEO_ADCx_GPIO_CLK_DISABLE(); */
- }
-
- /**
- * @brief Initializes ADC HAL.
- */
- static void ADCx_Init(void)
- {
- if(HAL_ADC_GetState(&hnucleo_Adc) == HAL_ADC_STATE_RESET)
- {
- /* ADC Config */
- hnucleo_Adc.Instance = NUCLEO_ADCx;
- hnucleo_Adc.Init.ClockPrescaler = ADC_CLOCKPRESCALER_PCLK_DIV4; /* (must not exceed 36MHz) */
- hnucleo_Adc.Init.Resolution = ADC_RESOLUTION12b;
- hnucleo_Adc.Init.DataAlign = ADC_DATAALIGN_RIGHT;
- hnucleo_Adc.Init.ContinuousConvMode = DISABLE;
- hnucleo_Adc.Init.DiscontinuousConvMode = DISABLE;
- hnucleo_Adc.Init.ExternalTrigConvEdge = ADC_EXTERNALTRIGCONVEDGE_NONE;
- hnucleo_Adc.Init.EOCSelection = EOC_SINGLE_CONV;
- hnucleo_Adc.Init.NbrOfConversion = 1;
- hnucleo_Adc.Init.DMAContinuousRequests = DISABLE;
-
- ADCx_MspInit(&hnucleo_Adc);
- HAL_ADC_Init(&hnucleo_Adc);
- }
- }
-
- /**
- * @brief Initializes ADC HAL.
- */
- static void ADCx_DeInit(void)
- {
- hnucleo_Adc.Instance = NUCLEO_ADCx;
-
- HAL_ADC_DeInit(&hnucleo_Adc);
- ADCx_MspDeInit(&hnucleo_Adc);
- }
-
- /******************************* LINK JOYSTICK ********************************/
-
- /**
- * @brief Configures joystick available on adafruit 1.8" TFT shield
- * managed through ADC to detect motion.
- * @retval Joystickstatus (0=> success, 1=> fail)
- */
- uint8_t BSP_JOY_Init(void)
- {
- uint8_t status = HAL_ERROR;
-
- ADCx_Init();
-
- /* Select the ADC Channel to be converted */
- sConfig.Channel = NUCLEO_ADCx_CHANNEL;
- sConfig.SamplingTime = ADC_SAMPLETIME_3CYCLES;
- sConfig.Rank = 1;
- status = HAL_ADC_ConfigChannel(&hnucleo_Adc, &sConfig);
-
- /* Return Joystick initialization status */
- return status;
- }
-
- /**
- * @brief DeInit joystick GPIOs.
- * @note JOY DeInit does not disable the Mfx, just set the Mfx pins in Off modee.
- */
- void BSP_JOY_DeInit(void)
- {
- ADCx_DeInit();
- }
-
- /**
- * @brief Returns the Joystick key pressed.
- * @note To know which Joystick key is pressed we need to detect the voltage
- * level on each key output
- * - None : 3.3 V / 4095
- * - SEL : 1.055 V / 1308
- * - DOWN : 0.71 V / 88
- * - LEFT : 3.0 V / 3720
- * - RIGHT : 0.595 V / 737
- * - UP : 1.65 V / 2046
- * @retval JOYState_TypeDef: Code of the Joystick key pressed.
- */
- JOYState_TypeDef BSP_JOY_GetState(void)
- {
- JOYState_TypeDef state;
- uint16_t keyconvertedvalue = 0;
-
- /* Start the conversion process */
- HAL_ADC_Start(&hnucleo_Adc);
-
- /* Wait for the end of conversion */
- HAL_ADC_PollForConversion(&hnucleo_Adc, 10);
-
- /* Check if the continuous conversion of regular channel is finished */
- if(((HAL_ADC_GetState(&hnucleo_Adc) & HAL_ADC_STATE_EOC_REG) == HAL_ADC_STATE_EOC_REG))
- {
- /* Get the converted value of regular channel */
- keyconvertedvalue = HAL_ADC_GetValue(&hnucleo_Adc);
- }
-
- if((keyconvertedvalue > 2010) && (keyconvertedvalue < 2090))
- {
- state = JOY_UP;
- }
- else if((keyconvertedvalue > 680) && (keyconvertedvalue < 780))
- {
- state = JOY_RIGHT;
- }
- else if((keyconvertedvalue > 1270) && (keyconvertedvalue < 1350))
- {
- state = JOY_SEL;
- }
- else if((keyconvertedvalue > 50) && (keyconvertedvalue < 130))
- {
- state = JOY_DOWN;
- }
- else if((keyconvertedvalue > 3680) && (keyconvertedvalue < 3760))
- {
- state = JOY_LEFT;
- }
- else
- {
- state = JOY_NONE;
- }
-
- /* Loop while a key is pressed */
- if(state != JOY_NONE)
- {
- keyconvertedvalue = HAL_ADC_GetValue(&hnucleo_Adc);
- }
- /* Return the code of the Joystick key pressed */
- return state;
- }
- #endif /* HAL_ADC_MODULE_ENABLED */
-
- #endif /* ADAFRUIT_TFT_JOY_SD_ID802 */
-
-
- /**
- * @}
- */
-
- /**
- * @}
- */
-
- /**
- * @}
- */
-
- /**
- * @}
- */
-
- /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
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