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Fixed rendering issues when drawing setpoints, other various fixes
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******************************************************************************
* @file stm32f0xx_hal_flash.c
* @author MCD Application Team
* @version V1.1.0
* @date 03-Oct-2014
* @brief FLASH HAL module driver.
* This file provides firmware functions to manage the following
* functionalities of the internal FLASH memory:
* + Program operations functions
* + Memory Control functions
* + Peripheral State functions
*
@verbatim
==============================================================================
##### FLASH peripheral features #####
==============================================================================
[..] The Flash memory interface manages CPU AHB I-Code and D-Code accesses
to the Flash memory. It implements the erase and program Flash memory operations
and the read and write protection mechanisms.
[..] The Flash memory interface accelerates code execution with a system of instruction
prefetch.
[..] The FLASH main features are:
(+) Flash memory read operations
(+) Flash memory program/erase operations
(+) Read / write protections
(+) Prefetch on I-Code
(+) Option Bytes programming
##### How to use this driver #####
==============================================================================
[..]
This driver provides functions and macros to configure and program the FLASH
memory of all STM32F0xx devices. These functions are split in 3 groups:
(#) FLASH Memory I/O Programming functions: this group includes all needed
functions to erase and program the main memory:
(++) Lock and Unlock the FLASH interface
(++) Erase function: Erase page, erase all pages
(++) Program functions: half word and word
(#) Option Bytes Programming functions: this group includes all needed
functions to manage the Option Bytes:
(++) Lock and Unlock the Option Bytes
(++) Erase Option Bytes
(++) Set/Reset the write protection
(++) Set the Read protection Level
(++) Program the user Option Bytes
(++) Program the data Option Bytes
(++) Launch the Option Bytes loader
(#) Interrupts and flags management functions : this group
includes all needed functions to:
(++) Handle FLASH interrupts
(++) Wait for last FLASH operation according to its status
(++) Get error flag status
[..] In addition to these function, this driver includes a set of macros allowing
to handle the following operations:
(+) Set the latency
(+) Enable/Disable the prefetch buffer
(+) Enable/Disable the FLASH interrupts
(+) Monitor the FLASH flags status
@endverbatim
******************************************************************************
* @attention
*
* <h2><center>© COPYRIGHT(c) 2014 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 "stm32f0xx_hal.h"
/** @addtogroup STM32F0xx_HAL_Driver
* @{
*/
/** @defgroup FLASH FLASH HAL module driver
* @brief FLASH HAL module driver
* @{
*/
#ifdef HAL_FLASH_MODULE_ENABLED
/* Private typedef -----------------------------------------------------------*/
/* Private define ------------------------------------------------------------*/
/* Private macro -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
/** @defgroup FLASH_Private_Variables FLASH Private Variables
* @{
*/
/* Variables used for Erase pages under interruption*/
FLASH_ProcessTypeDef pFlash;
/**
* @}
*/
/* Private function prototypes -----------------------------------------------*/
/** @defgroup FLASH_Private_Functions FLASH Private Functions
* @{
*/
/* Erase operations */
void FLASH_PageErase(uint32_t PageAddress);
/* Program operations */
static void FLASH_Program_HalfWord(uint32_t Address, uint16_t Data);
HAL_StatusTypeDef FLASH_WaitForLastOperation(uint32_t Timeout);
static void FLASH_SetErrorCode(void);
/**
* @}
*/
/* Private functions ---------------------------------------------------------*/
/** @defgroup FLASH_Exported_Functions FLASH Exported Functions
* @{
*/
/** @defgroup FLASH_Exported_Functions_Group1 I/O operation functions
* @brief Data transfers functions
*
@verbatim
===============================================================================
##### IO operation functions #####
===============================================================================
[..]
This subsection provides a set of functions allowing to manage the FLASH
program operations (write/erase).
@endverbatim
* @{
*/
/**
* @brief Program halfword, word or double word at a specified address
* @note The function HAL_FLASH_Unlock() should be called before to unlock the FLASH interface
* The function HAL_FLASH_Lock() should be called after to lock the FLASH interface
*
* @note If an erase and a program operations are requested simultaneously,
* the erase operation is performed before the program one.
*
* @param TypeProgram: Indicate the way to program at a specified address.
* This parameter can be a value of @ref FLASH_Type_Program
* @param Address: Specifies the address to be programmed.
* @param Data: Specifies the data to be programmed
*
* @retval HAL_StatusTypeDef HAL Status
*/
HAL_StatusTypeDef HAL_FLASH_Program(uint32_t TypeProgram, uint32_t Address, uint64_t Data)
{
HAL_StatusTypeDef status = HAL_ERROR;
uint8_t index = 0;
uint8_t nbiterations = 0;
/* Process Locked */
__HAL_LOCK(&pFlash);
/* Check the parameters */
assert_param(IS_TYPEPROGRAM(TypeProgram));
assert_param(IS_FLASH_PROGRAM_ADDRESS(Address));
/* Wait for last operation to be completed */
status = FLASH_WaitForLastOperation((uint32_t)HAL_FLASH_TIMEOUT_VALUE);
if(status == HAL_OK)
{
if(TypeProgram == TYPEPROGRAM_HALFWORD)
{
/* Program halfword (16-bit) at a specified address. */
nbiterations = 1;
}
else if(TypeProgram == TYPEPROGRAM_WORD)
{
/* Program word (32-bit = 2*16-bit) at a specified address. */
nbiterations = 2;
}
else
{
/* Program double word (64-bit = 4*16-bit) at a specified address. */
nbiterations = 4;
}
for (index = 0; index < nbiterations; index++)
{
FLASH_Program_HalfWord((Address + (2*index)), (uint16_t)(Data >> (16*index)));
/* Wait for last operation to be completed */
status = FLASH_WaitForLastOperation((uint32_t)HAL_FLASH_TIMEOUT_VALUE);
/* Check FLASH End of Operation flag */
if (__HAL_FLASH_GET_FLAG(FLASH_FLAG_EOP))
{
/* Clear FLASH End of Operation pending bit */
__HAL_FLASH_CLEAR_FLAG(FLASH_FLAG_EOP);
}
/* If the program operation is completed, disable the PG Bit */
CLEAR_BIT(FLASH->CR, FLASH_CR_PG);
}
}
/* Process Unlocked */
__HAL_UNLOCK(&pFlash);
return status;
}
/**
* @brief Program halfword, word or double word at a specified address with interrupt enabled.
* @note The function HAL_FLASH_Unlock() should be called before to unlock the FLASH interface
* The function HAL_FLASH_Lock() should be called after to lock the FLASH interface
*
* @note If an erase and a program operations are requested simultaneously,
* the erase operation is performed before the program one.
*
* @param TypeProgram: Indicate the way to program at a specified address.
* This parameter can be a value of @ref FLASH_Type_Program
* @param Address: Specifies the address to be programmed.
* @param Data: Specifies the data to be programmed
*
* @retval HAL_StatusTypeDef HAL Status
*/
HAL_StatusTypeDef HAL_FLASH_Program_IT(uint32_t TypeProgram, uint32_t Address, uint64_t Data)
{
HAL_StatusTypeDef status = HAL_OK;
/* Process Locked */
__HAL_LOCK(&pFlash);
/* Check the parameters */
assert_param(IS_TYPEPROGRAM(TypeProgram));
assert_param(IS_FLASH_PROGRAM_ADDRESS(Address));
/* Enable End of FLASH Operation and Error source interrupts */
__HAL_FLASH_ENABLE_IT((FLASH_IT_EOP | FLASH_IT_ERR));
pFlash.Address = Address;
pFlash.Data = Data;
if(TypeProgram == TYPEPROGRAM_HALFWORD)
{
pFlash.ProcedureOnGoing = FLASH_PROC_PROGRAMHALFWORD;
/*Program halfword (16-bit) at a specified address.*/
pFlash.DataRemaining = 1;
}
else if(TypeProgram == TYPEPROGRAM_WORD)
{
pFlash.ProcedureOnGoing = FLASH_PROC_PROGRAMWORD;
/*Program word (32-bit : 2*16-bit) at a specified address.*/
pFlash.DataRemaining = 2;
}
else
{
pFlash.ProcedureOnGoing = FLASH_PROC_PROGRAMDOUBLEWORD;
/*Program double word (64-bit : 4*16-bit) at a specified address.*/
pFlash.DataRemaining = 4;
}
/*Program halfword (16-bit) at a specified address.*/
FLASH_Program_HalfWord(Address, (uint16_t)Data);
return status;
}
/**
* @brief This function handles FLASH interrupt request.
* @retval None
*/
void HAL_FLASH_IRQHandler(void)
{
uint32_t addresstmp;
/* If the operation is completed, disable the PG, PER and MER Bits */
CLEAR_BIT(FLASH->CR, (FLASH_CR_PG | FLASH_CR_PER | FLASH_CR_MER));
/* Check FLASH End of Operation flag */
if(__HAL_FLASH_GET_FLAG(FLASH_FLAG_EOP))
{
/* Clear FLASH End of Operation pending bit */
__HAL_FLASH_CLEAR_FLAG(FLASH_FLAG_EOP);
if(pFlash.ProcedureOnGoing == FLASH_PROC_PAGEERASE)
{
/* Nb of pages to erased can be decreased */
pFlash.DataRemaining--;
/* Indicate user which page address has been erased*/
HAL_FLASH_EndOfOperationCallback(pFlash.Address);
/* Check if there are still pages to erase*/
if(pFlash.DataRemaining != 0)
{
/* Increment page address to next page */
pFlash.Address += FLASH_PAGE_SIZE;
addresstmp = pFlash.Address;
FLASH_PageErase(addresstmp);
}
else
{
/*No more pages to Erase*/
/*Reset Address and stop Erase pages procedure*/
pFlash.Address = 0xFFFFFFFF;
pFlash.ProcedureOnGoing = FLASH_PROC_NONE;
}
}
else if(pFlash.ProcedureOnGoing == FLASH_PROC_MASSERASE)
{
/*MassErase ended. Return the selected bank*/
/* FLASH EOP interrupt user callback */
HAL_FLASH_EndOfOperationCallback(0);
/* Stop Mass Erase procedure*/
pFlash.ProcedureOnGoing = FLASH_PROC_NONE;
}
else
{
/* Nb of 16-bit data to program can be decreased */
pFlash.DataRemaining--;
/* Check if there are still 16-bit data to program */
if(pFlash.DataRemaining != 0)
{
/* Increment address to 16-bit */
pFlash.Address += 2;
addresstmp = pFlash.Address;
/* Shift to have next 16-bit data */
pFlash.Data = (pFlash.Data >> 16);
/*Program halfword (16-bit) at a specified address.*/
FLASH_Program_HalfWord(addresstmp, (uint16_t)pFlash.Data);
}
else
{
/*Program ended. Return the selected address*/
/* FLASH EOP interrupt user callback */
if (pFlash.ProcedureOnGoing == FLASH_PROC_PROGRAMHALFWORD)
{
HAL_FLASH_EndOfOperationCallback(pFlash.Address);
}
else if (pFlash.ProcedureOnGoing == FLASH_PROC_PROGRAMWORD)
{
HAL_FLASH_EndOfOperationCallback(pFlash.Address-2);
}
else
{
HAL_FLASH_EndOfOperationCallback(pFlash.Address-6);
}
/* Reset Address and stop Program procedure*/
pFlash.Address = 0xFFFFFFFF;
pFlash.ProcedureOnGoing = FLASH_PROC_NONE;
}
}
}
/* Check FLASH operation error flags */
if(__HAL_FLASH_GET_FLAG(FLASH_FLAG_WRPERR | FLASH_FLAG_PGERR))
{
/*Save the Error code*/
FLASH_SetErrorCode();
/* FLASH error interrupt user callback */
HAL_FLASH_OperationErrorCallback(pFlash.Address);
/* Clear FLASH error pending bits */
__HAL_FLASH_CLEAR_FLAG(FLASH_FLAG_WRPERR | FLASH_FLAG_PGERR);
/* Reset address and stop the procedure ongoing*/
pFlash.Address = 0xFFFFFFFF;
pFlash.ProcedureOnGoing = FLASH_PROC_NONE;
}
if(pFlash.ProcedureOnGoing == FLASH_PROC_NONE)
{
/* Disable End of FLASH Operation and Error source interrupts */
__HAL_FLASH_DISABLE_IT((FLASH_IT_EOP | FLASH_IT_ERR));
/* Process Unlocked */
__HAL_UNLOCK(&pFlash);
}
}
/**
* @brief FLASH end of operation interrupt callback
* @param ReturnValue: The value saved in this parameter depends on the ongoing procedure
* - Mass Erase: No return value expected
* - Pages Erase: Address of the page which has been erased
* - Program: Address which was selected for data program
* @retval none
*/
__weak void HAL_FLASH_EndOfOperationCallback(uint32_t ReturnValue)
{
/* NOTE : This function Should not be modified, when the callback is needed,
the HAL_FLASH_EndOfOperationCallback could be implemented in the user file
*/
}
/**
* @brief FLASH operation error interrupt callback
* @param ReturnValue: The value saved in this parameter depends on the ongoing procedure
* - Mass Erase: No return value expected
* - Pages Erase: Address of the page which returned an error
* - Program: Address which was selected for data program
* @retval none
*/
__weak void HAL_FLASH_OperationErrorCallback(uint32_t ReturnValue)
{
/* NOTE : This function Should not be modified, when the callback is needed,
the HAL_FLASH_OperationErrorCallback could be implemented in the user file
*/
}
/**
* @}
*/
/** @defgroup FLASH_Exported_Functions_Group2 Peripheral Control functions
* @brief management functions
*
@verbatim
===============================================================================
##### Peripheral Control functions #####
===============================================================================
[..]
This subsection provides a set of functions allowing to control the FLASH
memory operations.
@endverbatim
* @{
*/
/**
* @brief Unlock the FLASH control register access
* @retval HAL Status
*/
HAL_StatusTypeDef HAL_FLASH_Unlock(void)
{
if((READ_BIT(FLASH->CR, FLASH_CR_LOCK)) != RESET)
{
/* Authorize the FLASH Registers access */
WRITE_REG(FLASH->KEYR, FLASH_FKEY1);
WRITE_REG(FLASH->KEYR, FLASH_FKEY2);
}
else
{
return HAL_ERROR;
}
return HAL_OK;
}
/**
* @brief Locks the FLASH control register access
* @retval HAL Status
*/
HAL_StatusTypeDef HAL_FLASH_Lock(void)
{
/* Set the LOCK Bit to lock the FLASH Registers access */
SET_BIT(FLASH->CR, FLASH_CR_LOCK);
return HAL_OK;
}
/**
* @brief Unlock the FLASH Option Control Registers access.
* @retval HAL Status
*/
HAL_StatusTypeDef HAL_FLASH_OB_Unlock(void)
{
if((READ_BIT(FLASH->CR, FLASH_CR_OPTWRE)) == RESET)
{
/* Authorizes the Option Byte register programming */
WRITE_REG(FLASH->OPTKEYR, FLASH_OPTKEY1);
WRITE_REG(FLASH->OPTKEYR, FLASH_OPTKEY2);
}
else
{
return HAL_ERROR;
}
return HAL_OK;
}
/**
* @brief Lock the FLASH Option Control Registers access.
* @retval HAL Status
*/
HAL_StatusTypeDef HAL_FLASH_OB_Lock(void)
{
/* Clear the OPTWRE Bit to lock the FLASH Option Byte Registers access */
CLEAR_BIT(FLASH->CR, FLASH_CR_OPTWRE);
return HAL_OK;
}
/**
* @brief Launch the option byte loading.
* @retval HAL status
*/
HAL_StatusTypeDef HAL_FLASH_OB_Launch(void)
{
/* Set the bit to force the option byte reloading */
SET_BIT(FLASH->CR, FLASH_CR_OBL_LAUNCH);
/* Wait for last operation to be completed */
return(FLASH_WaitForLastOperation((uint32_t)HAL_FLASH_TIMEOUT_VALUE));
}
/**
* @}
*/
/** @defgroup FLASH_Exported_Functions_Group3 Peripheral State and Errors functions
* @brief Peripheral Errors functions
*
@verbatim
===============================================================================
##### Peripheral Errors functions #####
===============================================================================
[..]
This subsection permit to get in run-time Errors of the FLASH peripheral.
@endverbatim
* @{
*/
/**
* @brief Get the specific FLASH error flag.
* @retval FLASH_ErrorCode: The returned value can be:
* @arg FLASH_ERROR_PG: FLASH Programming error flag
* @arg FLASH_ERROR_WRP: FLASH Write protected error flag
*/
FLASH_ErrorTypeDef HAL_FLASH_GetError(void)
{
return pFlash.ErrorCode;
}
/**
* @}
*/
/**
* @}
*/
/** @addtogroup FLASH_Private_Functions
* @{
*/
/**
* @brief Erase the specified FLASH memory page
* @param PageAddress: FLASH page to erase
* The value of this parameter depend on device used within the same series
*
* @retval None
*/
void FLASH_PageErase(uint32_t PageAddress)
{
/* Clear pending flags (if any) */
__HAL_FLASH_CLEAR_FLAG(FLASH_FLAG_EOP | FLASH_FLAG_WRPERR | FLASH_FLAG_PGERR);
/* Proceed to erase the page */
SET_BIT(FLASH->CR, FLASH_CR_PER);
WRITE_REG(FLASH->AR, PageAddress);
SET_BIT(FLASH->CR, FLASH_CR_STRT);
}
/**
* @brief Program a half-word (16-bit) at a specified address.
* @param Address: specifies the address to be programmed.
* @param Data: specifies the data to be programmed.
* @retval None
*/
static void FLASH_Program_HalfWord(uint32_t Address, uint16_t Data)
{
/* Clear pending flags (if any) */
__HAL_FLASH_CLEAR_FLAG(FLASH_FLAG_EOP | FLASH_FLAG_WRPERR | FLASH_FLAG_PGERR);
/* Proceed to program the new data */
SET_BIT(FLASH->CR, FLASH_CR_PG);
*(__IO uint16_t*)Address = Data;
}
/**
* @brief Wait for a FLASH operation to complete.
* @param Timeout: maximum flash operationtimeout
* @retval HAL_StatusTypeDef HAL Status
*/
HAL_StatusTypeDef FLASH_WaitForLastOperation(uint32_t Timeout)
{
/* Wait for the FLASH operation to complete by polling on BUSY flag to be reset.
Even if the FLASH operation fails, the BUSY flag will be reset and an error
flag will be set */
uint32_t tickstart = HAL_GetTick();
while(__HAL_FLASH_GET_FLAG(FLASH_FLAG_BSY))
{
if(Timeout != HAL_MAX_DELAY)
{
if((Timeout == 0) || ((HAL_GetTick() - tickstart) > Timeout))
{
return HAL_TIMEOUT;
}
}
}
if(__HAL_FLASH_GET_FLAG(FLASH_FLAG_WRPERR) || __HAL_FLASH_GET_FLAG(FLASH_FLAG_PGERR))
{
/*Save the error code*/
FLASH_SetErrorCode();
return HAL_ERROR;
}
/* If there is an error flag set */
return HAL_OK;
}
/**
* @brief Set the specific FLASH error flag.
* @retval None
*/
static void FLASH_SetErrorCode(void)
{
if(__HAL_FLASH_GET_FLAG(FLASH_FLAG_WRPERR))
{
pFlash.ErrorCode = FLASH_ERROR_WRP;
}
if(__HAL_FLASH_GET_FLAG(FLASH_FLAG_PGERR))
{
pFlash.ErrorCode |= FLASH_ERROR_PG;
}
}
/**
* @}
*/
#endif /* HAL_FLASH_MODULE_ENABLED */
/**
* @}
*/
/**
* @}
*/
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
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