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stm32756g_eval.c
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/**
******************************************************************************
* @file stm32756g_eval.c
* @author MCD Application Team
* @brief This file provides a set of firmware functions to manage LEDs,
* push-buttons and COM ports available on STM32756G-EVAL and STM32746G-EVAL
* evaluation board(MB1167) from STMicroelectronics.
*
*
******************************************************************************
* @attention
*
* Copyright (c) 2016 STMicroelectronics.
* All rights reserved.
*
* This software is licensed under terms that can be found in the LICENSE file
* in the root directory of this software component.
* If no LICENSE file comes with this software, it is provided AS-IS.
*
******************************************************************************
@verbatim
This driver requires the stm32756g_eval_io.c/.h files to manage the
IO module resources mapped on the MFX IO expander.
These resources are mainly LEDs, Joystick push buttons, SD detect pin,
USB OTG power switch/over current drive pins, Camera plug pin, Audio
INT pin
The use of the above eval resources is conditioned by the "USE_IOEXPANDER"
preprocessor define which is enabled by default for the STM327x6G-EVAL
boards Rev A. However for Rev B boards these resources are disabled by default
(except LED1 and LED2) and to be able to use them, user must add "USE_IOEXPANDER"
define in the compiler preprocessor configuration (or any header file that
is processed before stm32756g_eval.h).
On the STM327x6G-EVAL RevB LED1 and LED2 are directly mapped on GPIO pins,
to avoid the unnecessary overhead of code brought by the use of MFX IO
expander when no further evaluation board resources are needed by the
application/example.
For precise details on the use of the MFX IO expander, you can refer to
the description provided within the stm32756g_eval_io.c file header
@endverbatim
******************************************************************************
*/
/* Dependencies
- stm32756g_eval_io.c
- stm32f7xx_hal_cortex.c
- stm32f7xx_hal_gpio.c
- stm32f7xx_hal_uart.c
- stm32f7xx_hal_i2c.c
- stm32f7xx_hal_adc.c
EndDependencies */
/* Includes ------------------------------------------------------------------*/
#include "stm32756g_eval.h"
#if defined(USE_IOEXPANDER)
#include "stm32756g_eval_io.h"
#endif /* USE_IOEXPANDER */
/** @addtogroup BSP
* @{
*/
/** @defgroup STM32756G_EVAL EVAL
* @{
*/
/** @defgroup STM32756G_EVAL_LOW_LEVEL STM32756G-EVAL LOW LEVEL
* @{
*/
/** @defgroup STM32756G_EVAL_LOW_LEVEL_Private_TypesDefinitions STM32756G-EVAL LOW LEVEL Private Types Definitions
* @{
*/
/**
* @}
*/
/** @defgroup STM32756G_EVAL_LOW_LEVEL_Private_Defines STM32756G-EVAL LOW LEVEL Private Defines
* @{
*/
/**
* @brief STM32756G EVAL BSP Driver version number V2.1.1
*/
#define __STM32756G_EVAL_BSP_VERSION_MAIN (0x02) /*!< [31:24] main version */
#define __STM32756G_EVAL_BSP_VERSION_SUB1 (0x01) /*!< [23:16] sub1 version */
#define __STM32756G_EVAL_BSP_VERSION_SUB2 (0x01) /*!< [15:8] sub2 version */
#define __STM32756G_EVAL_BSP_VERSION_RC (0x00) /*!< [7:0] release candidate */
#define __STM32756G_EVAL_BSP_VERSION ((__STM32756G_EVAL_BSP_VERSION_MAIN << 24)\
|(__STM32756G_EVAL_BSP_VERSION_SUB1 << 16)\
|(__STM32756G_EVAL_BSP_VERSION_SUB2 << 8 )\
|(__STM32756G_EVAL_BSP_VERSION_RC))
/**
* @}
*/
/** @defgroup STM32756G_EVAL_LOW_LEVEL_Private_Macros STM32756G-EVAL LOW LEVEL Private Macros
* @{
*/
/**
* @}
*/
/** @defgroup STM32756G_EVAL_LOW_LEVEL_Private_Variables STM32756G-EVAL LOW LEVEL Private Variables
* @{
*/
#if defined(USE_IOEXPANDER)
const uint32_t GPIO_PIN[LEDn] = {LED1_PIN,
LED2_PIN,
LED3_PIN,
LED4_PIN};
#else
const uint32_t GPIO_PIN[LEDn] = {LED1_PIN,
LED3_PIN};
#endif /* USE_IOEXPANDER */
GPIO_TypeDef* BUTTON_PORT[BUTTONn] = {WAKEUP_BUTTON_GPIO_PORT,
TAMPER_BUTTON_GPIO_PORT,
KEY_BUTTON_GPIO_PORT};
const uint16_t BUTTON_PIN[BUTTONn] = {WAKEUP_BUTTON_PIN,
TAMPER_BUTTON_PIN,
KEY_BUTTON_PIN};
const uint16_t BUTTON_IRQn[BUTTONn] = {WAKEUP_BUTTON_EXTI_IRQn,
TAMPER_BUTTON_EXTI_IRQn,
KEY_BUTTON_EXTI_IRQn};
USART_TypeDef* COM_USART[COMn] = {EVAL_COM1};
GPIO_TypeDef* COM_TX_PORT[COMn] = {EVAL_COM1_TX_GPIO_PORT};
GPIO_TypeDef* COM_RX_PORT[COMn] = {EVAL_COM1_RX_GPIO_PORT};
const uint16_t COM_TX_PIN[COMn] = {EVAL_COM1_TX_PIN};
const uint16_t COM_RX_PIN[COMn] = {EVAL_COM1_RX_PIN};
const uint16_t COM_TX_AF[COMn] = {EVAL_COM1_TX_AF};
const uint16_t COM_RX_AF[COMn] = {EVAL_COM1_RX_AF};
static I2C_HandleTypeDef hEvalI2c;
static ADC_HandleTypeDef hEvalADC;
/**
* @}
*/
/** @defgroup STM32756G_EVAL_LOW_LEVEL_Private_FunctionPrototypes STM32756G_EVAL LOW LEVEL Private Function Prototypes
* @{
*/
static void I2Cx_MspInit(void);
static void I2Cx_Init(void);
#if defined(USE_IOEXPANDER)
static void I2Cx_Write(uint8_t Addr, uint8_t Reg, uint8_t Value);
static uint8_t I2Cx_Read(uint8_t Addr, uint8_t Reg);
#endif /* USE_IOEXPANDER */
static HAL_StatusTypeDef I2Cx_ReadMultiple(uint8_t Addr, uint16_t Reg, uint16_t MemAddSize, uint8_t *Buffer, uint16_t Length);
static HAL_StatusTypeDef I2Cx_WriteMultiple(uint8_t Addr, uint16_t Reg, uint16_t MemAddSize, uint8_t *Buffer, uint16_t Length);
static HAL_StatusTypeDef I2Cx_IsDeviceReady(uint16_t DevAddress, uint32_t Trials);
static void I2Cx_Error(uint8_t Addr);
#if defined(USE_IOEXPANDER)
/* IOExpander IO functions */
void IOE_Init(void);
void IOE_ITConfig(void);
void IOE_Delay(uint32_t Delay);
void IOE_Write(uint8_t Addr, uint8_t Reg, uint8_t Value);
uint8_t IOE_Read(uint8_t Addr, uint8_t Reg);
uint16_t IOE_ReadMultiple(uint8_t Addr, uint8_t Reg, uint8_t *Buffer, uint16_t Length);
void IOE_WriteMultiple(uint8_t Addr, uint8_t Reg, uint8_t *Buffer, uint16_t Length);
/* MFX IO functions */
void MFX_IO_Init(void);
void MFX_IO_DeInit(void);
void MFX_IO_ITConfig(void);
void MFX_IO_Delay(uint32_t Delay);
void MFX_IO_Write(uint16_t Addr, uint8_t Reg, uint8_t Value);
uint8_t MFX_IO_Read(uint16_t Addr, uint8_t Reg);
uint16_t MFX_IO_ReadMultiple(uint16_t Addr, uint8_t Reg, uint8_t *Buffer, uint16_t Length);
void MFX_IO_Wakeup(void);
void MFX_IO_EnableWakeupPin(void);
#endif /* USE_IOEXPANDER */
/* AUDIO IO functions */
void AUDIO_IO_Init(void);
void AUDIO_IO_DeInit(void);
void AUDIO_IO_Write(uint8_t Addr, uint16_t Reg, uint16_t Value);
uint16_t AUDIO_IO_Read(uint8_t Addr, uint16_t Reg);
void AUDIO_IO_Delay(uint32_t Delay);
/* CAMERA IO functions */
void CAMERA_IO_Init(void);
void CAMERA_Delay(uint32_t Delay);
void CAMERA_IO_Write(uint8_t Addr, uint16_t Reg, uint16_t Value);
uint16_t CAMERA_IO_Read(uint8_t Addr, uint16_t Reg);
/* I2C EEPROM IO function */
void EEPROM_IO_Init(void);
HAL_StatusTypeDef EEPROM_IO_WriteData(uint16_t DevAddress, uint16_t MemAddress, uint8_t* pBuffer, uint32_t BufferSize);
HAL_StatusTypeDef EEPROM_IO_ReadData(uint16_t DevAddress, uint16_t MemAddress, uint8_t* pBuffer, uint32_t BufferSize);
HAL_StatusTypeDef EEPROM_IO_IsDeviceReady(uint16_t DevAddress, uint32_t Trials);
/**
* @}
*/
/** @defgroup STM32756G_EVAL_LOW_LEVEL_Private_Functions STM32756G_EVAL LOW LEVEL Private Functions
* @{
*/
/**
* @brief This method returns the STM32756G EVAL BSP Driver revision
* @retval version: 0xXYZR (8bits for each decimal, R for RC)
*/
uint32_t BSP_GetVersion(void)
{
return __STM32756G_EVAL_BSP_VERSION;
}
/**
* @brief Configures LED on GPIO and/or on MFX.
* @param Led: LED to be configured.
* This parameter can be one of the following values:
* @arg LED1
* @arg LED2
* @arg LED3
* @arg LED4
* @retval None
*/
void BSP_LED_Init(Led_TypeDef Led)
{
#if !defined(USE_STM32756G_EVAL_REVA)
/* On RevB and above evaluation boards, LED1 and LED3 are connected to GPIOs */
/* To use LED1 on RevB board, ensure that JP24 is in position 2-3, potentiometer is then no more usable */
/* To use LED3 on RevB board, ensure that JP23 is in position 2-3, camera is then no more usable */
GPIO_InitTypeDef gpio_init_structure;
GPIO_TypeDef* gpio_led;
if ((Led == LED1) || (Led == LED3))
{
if (Led == LED1)
{
gpio_led = LED1_GPIO_PORT;
/* Enable the GPIO_LED clock */
LED1_GPIO_CLK_ENABLE();
}
else
{
gpio_led = LED3_GPIO_PORT;
/* Enable the GPIO_LED clock */
LED3_GPIO_CLK_ENABLE();
}
/* Configure the GPIO_LED pin */
gpio_init_structure.Pin = GPIO_PIN[Led];
gpio_init_structure.Mode = GPIO_MODE_OUTPUT_PP;
gpio_init_structure.Pull = GPIO_PULLUP;
gpio_init_structure.Speed = GPIO_SPEED_HIGH;
HAL_GPIO_Init(gpio_led, &gpio_init_structure);
/* By default, turn off LED */
HAL_GPIO_WritePin(gpio_led, GPIO_PIN[Led], GPIO_PIN_SET);
}
else
{
#endif /* !USE_STM32756G_EVAL_REVA */
#if defined(USE_IOEXPANDER)
/* On RevA eval board, all LEDs are connected to MFX */
/* On RevB and above eval board, LED2 and LED4 are connected to MFX */
BSP_IO_Init(); /* Initialize MFX */
BSP_IO_ConfigPin(GPIO_PIN[Led], IO_MODE_OUTPUT_PP_PU);
BSP_IO_WritePin(GPIO_PIN[Led], BSP_IO_PIN_SET);
#endif /* USE_IOEXPANDER */
#if !defined(USE_STM32756G_EVAL_REVA)
}
#endif /* !USE_STM32756G_EVAL_REVA */
}
/**
* @brief DeInit LEDs.
* @param Led: LED to be configured.
* This parameter can be one of the following values:
* @arg LED1
* @arg LED2
* @arg LED3
* @arg LED4
* @note Led DeInit does not disable the GPIO clock nor disable the Mfx
* @retval None
*/
void BSP_LED_DeInit(Led_TypeDef Led)
{
#if !defined(USE_STM32756G_EVAL_REVA)
GPIO_InitTypeDef gpio_init_structure;
GPIO_TypeDef* gpio_led;
/* On RevB led1 and Led3 are on GPIO while Led2 and Led4 on Mfx*/
if ((Led == LED1) || (Led == LED3))
{
if (Led == LED1)
{
gpio_led = LED1_GPIO_PORT;
}
else
{
gpio_led = LED3_GPIO_PORT;
}
/* Turn off LED */
HAL_GPIO_WritePin(gpio_led, GPIO_PIN[Led], GPIO_PIN_RESET);
/* Configure the GPIO_LED pin */
gpio_init_structure.Pin = GPIO_PIN[Led];
HAL_GPIO_DeInit(gpio_led, gpio_init_structure.Pin);
}
else
{
#endif /* !USE_STM32756G_EVAL_REVA */
#if defined(USE_IOEXPANDER) /* (USE_IOEXPANDER always defined for RevA) */
/* GPIO_PIN[Led] depends on the board revision: */
/* - in case of RevA all leds are deinit */
/* - in case of RevB just led 2 and led4 are deinit */
BSP_IO_ConfigPin(GPIO_PIN[Led], IO_MODE_OFF);
#endif /* USE_IOEXPANDER */
#if !defined(USE_STM32756G_EVAL_REVA)
}
#endif /* !USE_STM32756G_EVAL_REVA */
}
/**
* @brief Turns selected LED On.
* @param Led: LED to be set on
* This parameter can be one of the following values:
* @arg LED1
* @arg LED2
* @arg LED3
* @arg LED4
* @retval None
*/
void BSP_LED_On(Led_TypeDef Led)
{
#if !defined(USE_STM32756G_EVAL_REVA)
GPIO_TypeDef* gpio_led;
if ((Led == LED1) || (Led == LED3)) /* Switch On LED connected to GPIO */
{
if (Led == LED1)
{
gpio_led = LED1_GPIO_PORT;
}
else
{
gpio_led = LED3_GPIO_PORT;
}
HAL_GPIO_WritePin(gpio_led, GPIO_PIN[Led], GPIO_PIN_RESET);
}
else
{
#endif /* !USE_STM32756G_EVAL_REVA */
#if defined(USE_IOEXPANDER) /* Switch On LED connected to MFX */
BSP_IO_WritePin(GPIO_PIN[Led], BSP_IO_PIN_RESET);
#endif /* USE_IOEXPANDER */
#if !defined(USE_STM32756G_EVAL_REVA)
}
#endif /* !USE_STM32756G_EVAL_REVA */
}
/**
* @brief Turns selected LED Off.
* @param Led: LED to be set off
* This parameter can be one of the following values:
* @arg LED1
* @arg LED2
* @arg LED3
* @arg LED4
* @retval None
*/
void BSP_LED_Off(Led_TypeDef Led)
{
#if !defined(USE_STM32756G_EVAL_REVA)
GPIO_TypeDef* gpio_led;
if ((Led == LED1) || (Led == LED3)) /* Switch Off LED connected to GPIO */
{
if (Led == LED1)
{
gpio_led = LED1_GPIO_PORT;
}
else
{
gpio_led = LED3_GPIO_PORT;
}
HAL_GPIO_WritePin(gpio_led, GPIO_PIN[Led], GPIO_PIN_SET);
}
else
{
#endif /* !USE_STM32756G_EVAL_REVA */
#if defined(USE_IOEXPANDER) /* Switch Off LED connected to MFX */
BSP_IO_WritePin(GPIO_PIN[Led], BSP_IO_PIN_SET);
#endif /* USE_IOEXPANDER */
#if !defined(USE_STM32756G_EVAL_REVA)
}
#endif /* !USE_STM32756G_EVAL_REVA */
}
/**
* @brief Toggles the selected LED.
* @param Led: LED to be toggled
* This parameter can be one of the following values:
* @arg LED1
* @arg LED2
* @arg LED3
* @arg LED4
* @retval None
*/
void BSP_LED_Toggle(Led_TypeDef Led)
{
#if !defined(USE_STM32756G_EVAL_REVA)
GPIO_TypeDef* gpio_led;
if ((Led == LED1) || (Led == LED3)) /* Toggle LED connected to GPIO */
{
if (Led == LED1)
{
gpio_led = LED1_GPIO_PORT;
}
else
{
gpio_led = LED3_GPIO_PORT;
}
HAL_GPIO_TogglePin(gpio_led, GPIO_PIN[Led]);
}
else
{
#endif /* !USE_STM32756G_EVAL_REVA */
#if defined(USE_IOEXPANDER) /* Toggle LED connected to MFX */
BSP_IO_TogglePin(GPIO_PIN[Led]);
#endif /* USE_IOEXPANDER */
#if !defined(USE_STM32756G_EVAL_REVA)
}
#endif /* !USE_STM32756G_EVAL_REVA */
}
/**
* @brief Configures button GPIO and EXTI Line.
* @param Button: Button to be configured
* This parameter can be one of the following values:
* @arg BUTTON_WAKEUP: Wakeup Push Button
* @arg BUTTON_TAMPER: Tamper Push Button
* @arg BUTTON_KEY: Key Push Button
* @param ButtonMode: Button mode
* This parameter can be one of the following values:
* @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
* @note On STM32756G-EVAL evaluation board, the three buttons (Wakeup, Tamper
* and key buttons) are mapped on the same push button named "Wakeup/Tamper"
* on the board serigraphy.
* @retval None
*/
void BSP_PB_Init(Button_TypeDef Button, ButtonMode_TypeDef ButtonMode)
{
GPIO_InitTypeDef gpio_init_structure;
/* Enable the BUTTON clock */
BUTTONx_GPIO_CLK_ENABLE(Button);
if(ButtonMode == BUTTON_MODE_GPIO)
{
/* Configure Button pin as input */
gpio_init_structure.Pin = BUTTON_PIN[Button];
gpio_init_structure.Mode = GPIO_MODE_INPUT;
gpio_init_structure.Pull = GPIO_NOPULL;
gpio_init_structure.Speed = GPIO_SPEED_FAST;
HAL_GPIO_Init(BUTTON_PORT[Button], &gpio_init_structure);
}
if(ButtonMode == BUTTON_MODE_EXTI)
{
/* Configure Button pin as input with External interrupt */
gpio_init_structure.Pin = BUTTON_PIN[Button];
gpio_init_structure.Pull = GPIO_NOPULL;
gpio_init_structure.Speed = GPIO_SPEED_FAST;
if(Button != BUTTON_WAKEUP)
{
gpio_init_structure.Mode = GPIO_MODE_IT_FALLING;
}
else
{
gpio_init_structure.Mode = GPIO_MODE_IT_RISING;
}
HAL_GPIO_Init(BUTTON_PORT[Button], &gpio_init_structure);
/* 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 can be one of the following values:
* @arg BUTTON_WAKEUP: Wakeup Push Button
* @arg BUTTON_TAMPER: Tamper Push Button
* @arg BUTTON_KEY: Key Push Button
* @note On STM32756G-EVAL evaluation board, the three buttons (Wakeup, Tamper
* and key buttons) are mapped on the same push button named "Wakeup/Tamper"
* on the board serigraphy.
* @note PB DeInit does not disable the GPIO clock
* @retval None
*/
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: Button to be checked
* This parameter can be one of the following values:
* @arg BUTTON_WAKEUP: Wakeup Push Button
* @arg BUTTON_TAMPER: Tamper Push Button
* @arg BUTTON_KEY: Key Push Button
* @note On STM32756G-EVAL evaluation board, the three buttons (Wakeup, Tamper
* and key buttons) are mapped on the same push button named "Wakeup/Tamper"
* on the board serigraphy.
* @retval The Button GPIO pin value
*/
uint32_t BSP_PB_GetState(Button_TypeDef Button)
{
return HAL_GPIO_ReadPin(BUTTON_PORT[Button], BUTTON_PIN[Button]);
}
/**
* @brief Configures COM port.
* @param COM: COM port to be configured.
* This parameter can be one of the following values:
* @arg COM1
* @arg COM2
* @param huart: Pointer to a UART_HandleTypeDef structure that contains the
* configuration information for the specified USART peripheral.
* @retval None
*/
void BSP_COM_Init(COM_TypeDef COM, UART_HandleTypeDef *huart)
{
GPIO_InitTypeDef gpio_init_structure;
/* Enable GPIO clock */
EVAL_COMx_TX_GPIO_CLK_ENABLE(COM);
EVAL_COMx_RX_GPIO_CLK_ENABLE(COM);
/* Enable USART clock */
EVAL_COMx_CLK_ENABLE(COM);
/* Configure USART Tx as alternate function */
gpio_init_structure.Pin = COM_TX_PIN[COM];
gpio_init_structure.Mode = GPIO_MODE_AF_PP;
gpio_init_structure.Speed = GPIO_SPEED_FAST;
gpio_init_structure.Pull = GPIO_PULLUP;
gpio_init_structure.Alternate = COM_TX_AF[COM];
HAL_GPIO_Init(COM_TX_PORT[COM], &gpio_init_structure);
/* Configure USART Rx as alternate function */
gpio_init_structure.Pin = COM_RX_PIN[COM];
gpio_init_structure.Mode = GPIO_MODE_AF_PP;
gpio_init_structure.Alternate = COM_RX_AF[COM];
HAL_GPIO_Init(COM_RX_PORT[COM], &gpio_init_structure);
/* USART configuration */
huart->Instance = COM_USART[COM];
HAL_UART_Init(huart);
}
/**
* @brief DeInit COM port.
* @param COM: COM port to be configured.
* This parameter can be one of the following values:
* @arg COM1
* @arg COM2
* @param huart: Pointer to a UART_HandleTypeDef structure that contains the
* configuration information for the specified USART peripheral.
* @retval None
*/
void BSP_COM_DeInit(COM_TypeDef COM, UART_HandleTypeDef *huart)
{
/* USART configuration */
huart->Instance = COM_USART[COM];
HAL_UART_DeInit(huart);
/* Enable USART clock */
EVAL_COMx_CLK_DISABLE(COM);
/* DeInit GPIO pins can be done in the application
(by surcharging this __weak function) */
/* GPIO pins clock, DMA clock can be shut down in the application
by surcharging this __weak function */
}
/**
* @brief Init Potentiometer.
* @retval None
*/
void BSP_POTENTIOMETER_Init(void)
{
GPIO_InitTypeDef GPIO_InitStruct;
ADC_ChannelConfTypeDef ADC_Config;
/* ADC an GPIO Periph clock enable */
ADCx_CLK_ENABLE();
ADCx_CHANNEL_GPIO_CLK_ENABLE();
/* ADC Channel GPIO pin configuration */
GPIO_InitStruct.Pin = ADCx_CHANNEL_PIN;
GPIO_InitStruct.Mode = GPIO_MODE_ANALOG;
GPIO_InitStruct.Pull = GPIO_NOPULL;
HAL_GPIO_Init(ADCx_CHANNEL_GPIO_PORT, &GPIO_InitStruct);
/* Configure the ADC peripheral */
hEvalADC.Instance = ADCx;
HAL_ADC_DeInit(&hEvalADC);
hEvalADC.Init.ClockPrescaler = ADC_CLOCKPRESCALER_PCLK_DIV4; /* Asynchronous clock mode, input ADC clock not divided */
hEvalADC.Init.Resolution = ADC_RESOLUTION_12B; /* 12-bit resolution for converted data */
hEvalADC.Init.DataAlign = ADC_DATAALIGN_RIGHT; /* Right-alignment for converted data */
hEvalADC.Init.ScanConvMode = DISABLE; /* Sequencer disabled (ADC conversion on only 1 channel: channel set on rank 1) */
hEvalADC.Init.EOCSelection = DISABLE; /* EOC flag picked-up to indicate conversion end */
hEvalADC.Init.ContinuousConvMode = DISABLE; /* Continuous mode disabled to have only 1 conversion at each conversion trig */
hEvalADC.Init.NbrOfConversion = 1; /* Parameter discarded because sequencer is disabled */
hEvalADC.Init.DiscontinuousConvMode = DISABLE; /* Parameter discarded because sequencer is disabled */
hEvalADC.Init.NbrOfDiscConversion = 0; /* Parameter discarded because sequencer is disabled */
hEvalADC.Init.ExternalTrigConv = ADC_EXTERNALTRIGCONV_T1_CC1; /* Software start to trig the 1st conversion manually, without external event */
hEvalADC.Init.ExternalTrigConvEdge = ADC_EXTERNALTRIGCONVEDGE_NONE; /* Parameter discarded because software trigger chosen */
hEvalADC.Init.DMAContinuousRequests = DISABLE; /* DMA one-shot mode selected */
HAL_ADC_Init(&hEvalADC);
/* Configure ADC regular channel */
ADC_Config.Channel = ADCx_CHANNEL; /* Sampled channel number */
ADC_Config.Rank = 1; /* Rank of sampled channel number ADCx_CHANNEL */
ADC_Config.SamplingTime = ADC_SAMPLETIME_3CYCLES; /* Sampling time (number of clock cycles unit) */
ADC_Config.Offset = 0; /* Parameter discarded because offset correction is disabled */
HAL_ADC_ConfigChannel(&hEvalADC, &ADC_Config);
}
/**
* @brief Get Potentiometer level in 12 bits.
* @retval Potentiometer level(0..0xFFF) / 0xFFFFFFFF : Error
*/
uint32_t BSP_POTENTIOMETER_GetLevel(void)
{
if(HAL_ADC_Start(&hEvalADC) == HAL_OK)
{
if(HAL_ADC_PollForConversion(&hEvalADC, ADCx_POLL_TIMEOUT)== HAL_OK)
{
return (HAL_ADC_GetValue(&hEvalADC));
}
}
return 0xFFFFFFFF;
}
#if defined(USE_IOEXPANDER)
/**
* @brief Configures joystick GPIO and EXTI modes.
* @param JoyMode: Button mode.
* This parameter can be one of the following values:
* @arg JOY_MODE_GPIO: Joystick pins will be used as simple IOs
* @arg JOY_MODE_EXTI: Joystick pins will be connected to EXTI line
* with interrupt generation capability
* @retval IO_OK: if all initializations are OK. Other value if error.
*/
uint8_t BSP_JOY_Init(JOYMode_TypeDef JoyMode)
{
uint8_t ret = 0;
/* Initialize the IO functionalities */
ret = BSP_IO_Init();
/* Configure joystick pins in IT mode */
if(JoyMode == JOY_MODE_EXTI)
{
/* Configure IO interrupt acquisition mode */
BSP_IO_ConfigPin(JOY_ALL_PINS, IO_MODE_IT_LOW_LEVEL_PU);
}
else
{
BSP_IO_ConfigPin(JOY_ALL_PINS, IO_MODE_INPUT_PU);
}
return ret;
}
/**
* @brief DeInit joystick GPIOs.
* @note JOY DeInit does not disable the MFX, just set the MFX pins in Off mode
* @retval None.
*/
void BSP_JOY_DeInit()
{
BSP_IO_ConfigPin(JOY_ALL_PINS, IO_MODE_OFF);
}
/**
* @brief Returns the current joystick status.
* @retval Code of the joystick key pressed
* This code can be one of the following values:
* @arg JOY_NONE
* @arg JOY_SEL
* @arg JOY_DOWN
* @arg JOY_LEFT
* @arg JOY_RIGHT
* @arg JOY_UP
*/
JOYState_TypeDef BSP_JOY_GetState(void)
{
uint16_t pin_status = 0;
/* Read the status joystick pins */
pin_status = BSP_IO_ReadPin(JOY_ALL_PINS);
/* Check the pressed keys */
if((pin_status & JOY_NONE_PIN) == JOY_NONE)
{
return(JOYState_TypeDef) JOY_NONE;
}
else if(!(pin_status & JOY_SEL_PIN))
{
return(JOYState_TypeDef) JOY_SEL;
}
else if(!(pin_status & JOY_DOWN_PIN))
{
return(JOYState_TypeDef) JOY_DOWN;
}
else if(!(pin_status & JOY_LEFT_PIN))
{
return(JOYState_TypeDef) JOY_LEFT;
}
else if(!(pin_status & JOY_RIGHT_PIN))
{
return(JOYState_TypeDef) JOY_RIGHT;
}
else if(!(pin_status & JOY_UP_PIN))
{
return(JOYState_TypeDef) JOY_UP;
}
else
{
return(JOYState_TypeDef) JOY_NONE;
}
}
/**
* @brief Check TS3510 touch screen presence
* @retval Return 0 if TS3510 is detected, return 1 if not detected
*/
uint8_t BSP_TS3510_IsDetected(void)
{
HAL_StatusTypeDef status = HAL_OK;
uint32_t error = 0;
uint8_t a_buffer;
uint8_t tmp_buffer[2] = {0x81, 0x08};
/* Prepare for LCD read data */
IOE_WriteMultiple(TS3510_I2C_ADDRESS, 0x8A, tmp_buffer, 2);
status = HAL_I2C_Mem_Read(&hEvalI2c, TS3510_I2C_ADDRESS, 0x8A, I2C_MEMADD_SIZE_8BIT, &a_buffer, 1, 1000);
/* Check the communication status */
if(status != HAL_OK)
{
error = (uint32_t)HAL_I2C_GetError(&hEvalI2c);
/* I2C error occurred */
I2Cx_Error(TS3510_I2C_ADDRESS);
if(error == HAL_I2C_ERROR_AF)
{
return 1;
}
}
return 0;
}
#endif /* USE_IOEXPANDER */
/*******************************************************************************
BUS OPERATIONS
*******************************************************************************/
/******************************* I2C Routines *********************************/
/**
* @brief Initializes I2C MSP.
* @retval None
*/
static void I2Cx_MspInit(void)
{
GPIO_InitTypeDef gpio_init_structure;
/*** Configure the GPIOs ***/
/* Enable GPIO clock */
EVAL_I2Cx_SCL_SDA_GPIO_CLK_ENABLE();
/* Configure I2C Tx as alternate function */
gpio_init_structure.Pin = EVAL_I2Cx_SCL_PIN;
gpio_init_structure.Mode = GPIO_MODE_AF_OD;
gpio_init_structure.Pull = GPIO_NOPULL;
gpio_init_structure.Speed = GPIO_SPEED_FAST;
gpio_init_structure.Alternate = EVAL_I2Cx_SCL_SDA_AF;
HAL_GPIO_Init(EVAL_I2Cx_SCL_SDA_GPIO_PORT, &gpio_init_structure);
/* Configure I2C Rx as alternate function */
gpio_init_structure.Pin = EVAL_I2Cx_SDA_PIN;
HAL_GPIO_Init(EVAL_I2Cx_SCL_SDA_GPIO_PORT, &gpio_init_structure);
/*** Configure the I2C peripheral ***/
/* Enable I2C clock */
EVAL_I2Cx_CLK_ENABLE();
/* Force the I2C peripheral clock reset */
EVAL_I2Cx_FORCE_RESET();
/* Release the I2C peripheral clock reset */
EVAL_I2Cx_RELEASE_RESET();
/* Enable and set I2Cx Interrupt to a lower priority */
HAL_NVIC_SetPriority(EVAL_I2Cx_EV_IRQn, 0x0F, 0);
HAL_NVIC_EnableIRQ(EVAL_I2Cx_EV_IRQn);
/* Enable and set I2Cx Interrupt to a lower priority */
HAL_NVIC_SetPriority(EVAL_I2Cx_ER_IRQn, 0x0F, 0);
HAL_NVIC_EnableIRQ(EVAL_I2Cx_ER_IRQn);
}
/**
* @brief Initializes I2C HAL.
* @retval None
*/
static void I2Cx_Init(void)
{
if(HAL_I2C_GetState(&hEvalI2c) == HAL_I2C_STATE_RESET)
{
hEvalI2c.Instance = EVAL_I2Cx;
hEvalI2c.Init.Timing = EVAL_I2Cx_TIMING;
hEvalI2c.Init.OwnAddress1 = 0;
hEvalI2c.Init.AddressingMode = I2C_ADDRESSINGMODE_7BIT;
hEvalI2c.Init.DualAddressMode = I2C_DUALADDRESS_DISABLE;
hEvalI2c.Init.OwnAddress2 = 0;
hEvalI2c.Init.GeneralCallMode = I2C_GENERALCALL_DISABLE;
hEvalI2c.Init.NoStretchMode = I2C_NOSTRETCH_DISABLE;
/* Init the I2C */
I2Cx_MspInit();
HAL_I2C_Init(&hEvalI2c);
}
}
#if defined(USE_IOEXPANDER)
/**
* @brief Writes a single data.
* @param Addr: I2C address
* @param Reg: Register address
* @param Value: Data to be written
* @retval None
*/
static void I2Cx_Write(uint8_t Addr, uint8_t Reg, uint8_t Value)
{
HAL_StatusTypeDef status = HAL_OK;
status = HAL_I2C_Mem_Write(&hEvalI2c, Addr, (uint16_t)Reg, I2C_MEMADD_SIZE_8BIT, &Value, 1, 100);
/* Check the communication status */
if(status != HAL_OK)
{
/* Execute user timeout callback */
I2Cx_Error(Addr);
}
}
/**
* @brief Reads a single data.
* @param Addr: I2C address
* @param Reg: Register address
* @retval Read data
*/
static uint8_t I2Cx_Read(uint8_t Addr, uint8_t Reg)
{
HAL_StatusTypeDef status = HAL_OK;
uint8_t Value = 0;
status = HAL_I2C_Mem_Read(&hEvalI2c, Addr, Reg, I2C_MEMADD_SIZE_8BIT, &Value, 1, 1000);
/* Check the communication status */
if(status != HAL_OK)
{
/* Execute user timeout callback */
I2Cx_Error(Addr);
}
return Value;
}
#endif /* USE_IOEXPANDER */
/**
* @brief Reads multiple data.
* @param Addr: I2C address
* @param Reg: Reg address
* @param MemAddress: Internal memory address
* @param Buffer: Pointer to data buffer
* @param Length: Length of the data
* @retval Number of read data
*/
static HAL_StatusTypeDef I2Cx_ReadMultiple(uint8_t Addr, uint16_t Reg, uint16_t MemAddress, uint8_t *Buffer, uint16_t Length)
{
HAL_StatusTypeDef status = HAL_OK;
if(Addr == EXC7200_I2C_ADDRESS)
{
status = HAL_I2C_Master_Receive(&hEvalI2c, Addr, Buffer, Length, 1000);
}
else
{
status = HAL_I2C_Mem_Read(&hEvalI2c, Addr, (uint16_t)Reg, MemAddress, Buffer, Length, 1000);
}
/* Check the communication status */
if(status != HAL_OK)
{
/* I2C error occurred */
I2Cx_Error(Addr);
}
return status;
}
/**
* @brief Writes a value in a register of the device through BUS in using DMA mode.
* @param Addr: Device address on BUS Bus.
* @param Reg: The target register address to write
* @param MemAddress: Internal memory address
* @param Buffer: The target register value to be written
* @param Length: buffer size to be written
* @retval HAL status
*/
static HAL_StatusTypeDef I2Cx_WriteMultiple(uint8_t Addr, uint16_t Reg, uint16_t MemAddress, uint8_t *Buffer, uint16_t Length)
{
HAL_StatusTypeDef status = HAL_OK;
status = HAL_I2C_Mem_Write(&hEvalI2c, Addr, (uint16_t)Reg, MemAddress, Buffer, Length, 1000);
/* Check the communication status */
if(status != HAL_OK)
{
/* Re-Initiaize the I2C Bus */
I2Cx_Error(Addr);
}
return status;
}
/**
* @brief Checks if target device is ready for communication.
* @note This function is used with Memory devices
* @param DevAddress: Target device address
* @param Trials: Number of trials
* @retval HAL status
*/
static HAL_StatusTypeDef I2Cx_IsDeviceReady(uint16_t DevAddress, uint32_t Trials)
{
return (HAL_I2C_IsDeviceReady(&hEvalI2c, DevAddress, Trials, 1000));
}
/**
* @brief Manages error callback by re-initializing I2C.
* @param Addr: I2C Address
* @retval None
*/
static void I2Cx_Error(uint8_t Addr)
{
/* De-initialize the I2C communication bus */