From f217c7a99c4a1ded3f9c53a121433cc66d3c2063 Mon Sep 17 00:00:00 2001 From: gdisirio Date: Fri, 13 Nov 2009 21:16:50 +0000 Subject: git-svn-id: svn://svn.code.sf.net/p/chibios/svn/trunk@1286 35acf78f-673a-0410-8e92-d51de3d6d3f4 --- .../stm32lib/src/stm32f10x_flash.c | 874 --------------------- 1 file changed, 874 deletions(-) delete mode 100644 demos/ARMCM3-STM32F103-GCC/stm32lib/src/stm32f10x_flash.c (limited to 'demos/ARMCM3-STM32F103-GCC/stm32lib/src/stm32f10x_flash.c') diff --git a/demos/ARMCM3-STM32F103-GCC/stm32lib/src/stm32f10x_flash.c b/demos/ARMCM3-STM32F103-GCC/stm32lib/src/stm32f10x_flash.c deleted file mode 100644 index 22ee18000..000000000 --- a/demos/ARMCM3-STM32F103-GCC/stm32lib/src/stm32f10x_flash.c +++ /dev/null @@ -1,874 +0,0 @@ -/** - ****************************************************************************** - * @file stm32f10x_flash.c - * @author MCD Application Team - * @version V3.1.0 - * @date 06/19/2009 - * @brief This file provides all the FLASH firmware functions. - ****************************************************************************** - * @copy - * - * THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS - * WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE - * TIME. AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY - * DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING - * FROM THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE - * CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS. - * - *

© COPYRIGHT 2009 STMicroelectronics

- */ - -/* Includes ------------------------------------------------------------------*/ -#include "stm32f10x_flash.h" - -/** @addtogroup STM32F10x_StdPeriph_Driver - * @{ - */ - -/** @defgroup FLASH - * @brief FLASH driver modules - * @{ - */ - -/** @defgroup FLASH_Private_TypesDefinitions - * @{ - */ - -/** - * @} - */ - -/** @defgroup FLASH_Private_Defines - * @{ - */ - -/* Flash Access Control Register bits */ -#define ACR_LATENCY_Mask ((uint32_t)0x00000038) -#define ACR_HLFCYA_Mask ((uint32_t)0xFFFFFFF7) -#define ACR_PRFTBE_Mask ((uint32_t)0xFFFFFFEF) - -/* Flash Access Control Register bits */ -#define ACR_PRFTBS_Mask ((uint32_t)0x00000020) - -/* Flash Control Register bits */ -#define CR_PG_Set ((uint32_t)0x00000001) -#define CR_PG_Reset ((uint32_t)0x00001FFE) -#define CR_PER_Set ((uint32_t)0x00000002) -#define CR_PER_Reset ((uint32_t)0x00001FFD) -#define CR_MER_Set ((uint32_t)0x00000004) -#define CR_MER_Reset ((uint32_t)0x00001FFB) -#define CR_OPTPG_Set ((uint32_t)0x00000010) -#define CR_OPTPG_Reset ((uint32_t)0x00001FEF) -#define CR_OPTER_Set ((uint32_t)0x00000020) -#define CR_OPTER_Reset ((uint32_t)0x00001FDF) -#define CR_STRT_Set ((uint32_t)0x00000040) -#define CR_LOCK_Set ((uint32_t)0x00000080) - -/* FLASH Mask */ -#define RDPRT_Mask ((uint32_t)0x00000002) -#define WRP0_Mask ((uint32_t)0x000000FF) -#define WRP1_Mask ((uint32_t)0x0000FF00) -#define WRP2_Mask ((uint32_t)0x00FF0000) -#define WRP3_Mask ((uint32_t)0xFF000000) - -/* FLASH Keys */ -#define RDP_Key ((uint16_t)0x00A5) -#define FLASH_KEY1 ((uint32_t)0x45670123) -#define FLASH_KEY2 ((uint32_t)0xCDEF89AB) - -/* Delay definition */ -#define EraseTimeout ((uint32_t)0x00000FFF) -#define ProgramTimeout ((uint32_t)0x0000000F) - -/** - * @} - */ - -/** @defgroup FLASH_Private_Macros - * @{ - */ - -/** - * @} - */ - -/** @defgroup FLASH_Private_Variables - * @{ - */ - -/** - * @} - */ - -/** @defgroup FLASH_Private_FunctionPrototypes - * @{ - */ - -static void delay(void); -/** - * @} - */ - -/** @defgroup FLASH_Private_Functions - * @{ - */ - -/** - * @brief Sets the code latency value. - * @param FLASH_Latency: specifies the FLASH Latency value. - * This parameter can be one of the following values: - * @arg FLASH_Latency_0: FLASH Zero Latency cycle - * @arg FLASH_Latency_1: FLASH One Latency cycle - * @arg FLASH_Latency_2: FLASH Two Latency cycles - * @retval None - */ -void FLASH_SetLatency(uint32_t FLASH_Latency) -{ - uint32_t tmpreg = 0; - - /* Check the parameters */ - assert_param(IS_FLASH_LATENCY(FLASH_Latency)); - - /* Read the ACR register */ - tmpreg = FLASH->ACR; - - /* Sets the Latency value */ - tmpreg &= ACR_LATENCY_Mask; - tmpreg |= FLASH_Latency; - - /* Write the ACR register */ - FLASH->ACR = tmpreg; -} - -/** - * @brief Enables or disables the Half cycle flash access. - * @param FLASH_HalfCycleAccess: specifies the FLASH Half cycle Access mode. - * This parameter can be one of the following values: - * @arg FLASH_HalfCycleAccess_Enable: FLASH Half Cycle Enable - * @arg FLASH_HalfCycleAccess_Disable: FLASH Half Cycle Disable - * @retval None - */ -void FLASH_HalfCycleAccessCmd(uint32_t FLASH_HalfCycleAccess) -{ - /* Check the parameters */ - assert_param(IS_FLASH_HALFCYCLEACCESS_STATE(FLASH_HalfCycleAccess)); - - /* Enable or disable the Half cycle access */ - FLASH->ACR &= ACR_HLFCYA_Mask; - FLASH->ACR |= FLASH_HalfCycleAccess; -} - -/** - * @brief Enables or disables the Prefetch Buffer. - * @param FLASH_PrefetchBuffer: specifies the Prefetch buffer status. - * This parameter can be one of the following values: - * @arg FLASH_PrefetchBuffer_Enable: FLASH Prefetch Buffer Enable - * @arg FLASH_PrefetchBuffer_Disable: FLASH Prefetch Buffer Disable - * @retval None - */ -void FLASH_PrefetchBufferCmd(uint32_t FLASH_PrefetchBuffer) -{ - /* Check the parameters */ - assert_param(IS_FLASH_PREFETCHBUFFER_STATE(FLASH_PrefetchBuffer)); - - /* Enable or disable the Prefetch Buffer */ - FLASH->ACR &= ACR_PRFTBE_Mask; - FLASH->ACR |= FLASH_PrefetchBuffer; -} - -/** - * @brief Unlocks the FLASH Program Erase Controller. - * @param None - * @retval None - */ -void FLASH_Unlock(void) -{ - /* Authorize the FPEC Access */ - FLASH->KEYR = FLASH_KEY1; - FLASH->KEYR = FLASH_KEY2; -} - -/** - * @brief Locks the FLASH Program Erase Controller. - * @param None - * @retval None - */ -void FLASH_Lock(void) -{ - /* Set the Lock Bit to lock the FPEC and the FCR */ - FLASH->CR |= CR_LOCK_Set; -} - -/** - * @brief Erases a specified FLASH page. - * @param Page_Address: The page address to be erased. - * @retval FLASH Status: The returned value can be: FLASH_BUSY, FLASH_ERROR_PG, - * FLASH_ERROR_WRP, FLASH_COMPLETE or FLASH_TIMEOUT. - */ -FLASH_Status FLASH_ErasePage(uint32_t Page_Address) -{ - FLASH_Status status = FLASH_COMPLETE; - /* Check the parameters */ - assert_param(IS_FLASH_ADDRESS(Page_Address)); - /* Wait for last operation to be completed */ - status = FLASH_WaitForLastOperation(EraseTimeout); - - if(status == FLASH_COMPLETE) - { - /* if the previous operation is completed, proceed to erase the page */ - FLASH->CR|= CR_PER_Set; - FLASH->AR = Page_Address; - FLASH->CR|= CR_STRT_Set; - - /* Wait for last operation to be completed */ - status = FLASH_WaitForLastOperation(EraseTimeout); - if(status != FLASH_TIMEOUT) - { - /* if the erase operation is completed, disable the PER Bit */ - FLASH->CR &= CR_PER_Reset; - } - } - /* Return the Erase Status */ - return status; -} - -/** - * @brief Erases all FLASH pages. - * @param None - * @retval FLASH Status: The returned value can be: FLASH_ERROR_PG, - * FLASH_ERROR_WRP, FLASH_COMPLETE or FLASH_TIMEOUT. - */ -FLASH_Status FLASH_EraseAllPages(void) -{ - FLASH_Status status = FLASH_COMPLETE; - /* Wait for last operation to be completed */ - status = FLASH_WaitForLastOperation(EraseTimeout); - - if(status == FLASH_COMPLETE) - { - /* if the previous operation is completed, proceed to erase all pages */ - FLASH->CR |= CR_MER_Set; - FLASH->CR |= CR_STRT_Set; - - /* Wait for last operation to be completed */ - status = FLASH_WaitForLastOperation(EraseTimeout); - if(status != FLASH_TIMEOUT) - { - /* if the erase operation is completed, disable the MER Bit */ - FLASH->CR &= CR_MER_Reset; - } - } - /* Return the Erase Status */ - return status; -} - -/** - * @brief Erases the FLASH option bytes. - * @param None - * @retval FLASH Status: The returned value can be: FLASH_ERROR_PG, - * FLASH_ERROR_WRP, FLASH_COMPLETE or FLASH_TIMEOUT. - */ -FLASH_Status FLASH_EraseOptionBytes(void) -{ - FLASH_Status status = FLASH_COMPLETE; - - /* Wait for last operation to be completed */ - status = FLASH_WaitForLastOperation(EraseTimeout); - if(status == FLASH_COMPLETE) - { - /* Authorize the small information block programming */ - FLASH->OPTKEYR = FLASH_KEY1; - FLASH->OPTKEYR = FLASH_KEY2; - - /* if the previous operation is completed, proceed to erase the option bytes */ - FLASH->CR |= CR_OPTER_Set; - FLASH->CR |= CR_STRT_Set; - /* Wait for last operation to be completed */ - status = FLASH_WaitForLastOperation(EraseTimeout); - - if(status == FLASH_COMPLETE) - { - /* if the erase operation is completed, disable the OPTER Bit */ - FLASH->CR &= CR_OPTER_Reset; - - /* Enable the Option Bytes Programming operation */ - FLASH->CR |= CR_OPTPG_Set; - /* Enable the readout access */ - OB->RDP= RDP_Key; - /* Wait for last operation to be completed */ - status = FLASH_WaitForLastOperation(ProgramTimeout); - - if(status != FLASH_TIMEOUT) - { - /* if the program operation is completed, disable the OPTPG Bit */ - FLASH->CR &= CR_OPTPG_Reset; - } - } - else - { - if (status != FLASH_TIMEOUT) - { - /* Disable the OPTPG Bit */ - FLASH->CR &= CR_OPTPG_Reset; - } - } - } - /* Return the erase status */ - return status; -} - -/** - * @brief Programs a word at a specified address. - * @param Address: specifies the address to be programmed. - * @param Data: specifies the data to be programmed. - * @retval FLASH Status: The returned value can be: FLASH_ERROR_PG, - * FLASH_ERROR_WRP, FLASH_COMPLETE or FLASH_TIMEOUT. - */ -FLASH_Status FLASH_ProgramWord(uint32_t Address, uint32_t Data) -{ - FLASH_Status status = FLASH_COMPLETE; - __IO uint32_t tmp = 0; - - /* Check the parameters */ - assert_param(IS_FLASH_ADDRESS(Address)); - /* Wait for last operation to be completed */ - status = FLASH_WaitForLastOperation(ProgramTimeout); - - if(status == FLASH_COMPLETE) - { - /* if the previous operation is completed, proceed to program the new first - half word */ - FLASH->CR |= CR_PG_Set; - - *(__IO uint16_t*)Address = (uint16_t)Data; - /* Wait for last operation to be completed */ - status = FLASH_WaitForLastOperation(ProgramTimeout); - - if(status == FLASH_COMPLETE) - { - /* if the previous operation is completed, proceed to program the new second - half word */ - tmp = Address + 2; - - *(__IO uint16_t*) tmp = Data >> 16; - - /* Wait for last operation to be completed */ - status = FLASH_WaitForLastOperation(ProgramTimeout); - - if(status != FLASH_TIMEOUT) - { - /* Disable the PG Bit */ - FLASH->CR &= CR_PG_Reset; - } - } - else - { - if (status != FLASH_TIMEOUT) - { - /* Disable the PG Bit */ - FLASH->CR &= CR_PG_Reset; - } - } - } - /* Return the Program Status */ - return status; -} - -/** - * @brief Programs a half word at a specified address. - * @param Address: specifies the address to be programmed. - * @param Data: specifies the data to be programmed. - * @retval FLASH Status: The returned value can be: FLASH_ERROR_PG, - * FLASH_ERROR_WRP, FLASH_COMPLETE or FLASH_TIMEOUT. - */ -FLASH_Status FLASH_ProgramHalfWord(uint32_t Address, uint16_t Data) -{ - FLASH_Status status = FLASH_COMPLETE; - /* Check the parameters */ - assert_param(IS_FLASH_ADDRESS(Address)); - /* Wait for last operation to be completed */ - status = FLASH_WaitForLastOperation(ProgramTimeout); - - if(status == FLASH_COMPLETE) - { - /* if the previous operation is completed, proceed to program the new data */ - FLASH->CR |= CR_PG_Set; - - *(__IO uint16_t*)Address = Data; - /* Wait for last operation to be completed */ - status = FLASH_WaitForLastOperation(ProgramTimeout); - if(status != FLASH_TIMEOUT) - { - /* if the program operation is completed, disable the PG Bit */ - FLASH->CR &= CR_PG_Reset; - } - } - /* Return the Program Status */ - return status; -} - -/** - * @brief Programs a half word at a specified Option Byte Data address. - * @param Address: specifies the address to be programmed. - * This parameter can be 0x1FFFF804 or 0x1FFFF806. - * @param Data: specifies the data to be programmed. - * @retval FLASH Status: The returned value can be: FLASH_ERROR_PG, - * FLASH_ERROR_WRP, FLASH_COMPLETE or FLASH_TIMEOUT. - */ -FLASH_Status FLASH_ProgramOptionByteData(uint32_t Address, uint8_t Data) -{ - FLASH_Status status = FLASH_COMPLETE; - /* Check the parameters */ - assert_param(IS_OB_DATA_ADDRESS(Address)); - status = FLASH_WaitForLastOperation(ProgramTimeout); - if(status == FLASH_COMPLETE) - { - /* Authorize the small information block programming */ - FLASH->OPTKEYR = FLASH_KEY1; - FLASH->OPTKEYR = FLASH_KEY2; - /* Enables the Option Bytes Programming operation */ - FLASH->CR |= CR_OPTPG_Set; - *(__IO uint16_t*)Address = Data; - - /* Wait for last operation to be completed */ - status = FLASH_WaitForLastOperation(ProgramTimeout); - if(status != FLASH_TIMEOUT) - { - /* if the program operation is completed, disable the OPTPG Bit */ - FLASH->CR &= CR_OPTPG_Reset; - } - } - /* Return the Option Byte Data Program Status */ - return status; -} - -/** - * @brief Write protects the desired pages - * @param FLASH_Pages: specifies the address of the pages to be write protected. - * This parameter can be: - * @arg For @b STM32_Low-density_devices: value between FLASH_WRProt_Pages0to3 and FLASH_WRProt_Pages28to31 - * @arg For @b STM32_Medium-density_devices: value between FLASH_WRProt_Pages0to3 - * and FLASH_WRProt_Pages124to127 - * @arg For @b STM32_High-density_devices: value between FLASH_WRProt_Pages0to1 and - * FLASH_WRProt_Pages60to61 or FLASH_WRProt_Pages62to255 - * @arg For @b STM32_Connectivity_line_devices: value between FLASH_WRProt_Pages0to1 and - * FLASH_WRProt_Pages60to61 or FLASH_WRProt_Pages62to127 - * @arg FLASH_WRProt_AllPages - * @retval FLASH Status: The returned value can be: FLASH_ERROR_PG, - * FLASH_ERROR_WRP, FLASH_COMPLETE or FLASH_TIMEOUT. - */ -FLASH_Status FLASH_EnableWriteProtection(uint32_t FLASH_Pages) -{ - uint16_t WRP0_Data = 0xFFFF, WRP1_Data = 0xFFFF, WRP2_Data = 0xFFFF, WRP3_Data = 0xFFFF; - - FLASH_Status status = FLASH_COMPLETE; - - /* Check the parameters */ - assert_param(IS_FLASH_WRPROT_PAGE(FLASH_Pages)); - - FLASH_Pages = (uint32_t)(~FLASH_Pages); - WRP0_Data = (uint16_t)(FLASH_Pages & WRP0_Mask); - WRP1_Data = (uint16_t)((FLASH_Pages & WRP1_Mask) >> 8); - WRP2_Data = (uint16_t)((FLASH_Pages & WRP2_Mask) >> 16); - WRP3_Data = (uint16_t)((FLASH_Pages & WRP3_Mask) >> 24); - - /* Wait for last operation to be completed */ - status = FLASH_WaitForLastOperation(ProgramTimeout); - - if(status == FLASH_COMPLETE) - { - /* Authorizes the small information block programming */ - FLASH->OPTKEYR = FLASH_KEY1; - FLASH->OPTKEYR = FLASH_KEY2; - FLASH->CR |= CR_OPTPG_Set; - if(WRP0_Data != 0xFF) - { - OB->WRP0 = WRP0_Data; - - /* Wait for last operation to be completed */ - status = FLASH_WaitForLastOperation(ProgramTimeout); - } - if((status == FLASH_COMPLETE) && (WRP1_Data != 0xFF)) - { - OB->WRP1 = WRP1_Data; - - /* Wait for last operation to be completed */ - status = FLASH_WaitForLastOperation(ProgramTimeout); - } - if((status == FLASH_COMPLETE) && (WRP2_Data != 0xFF)) - { - OB->WRP2 = WRP2_Data; - - /* Wait for last operation to be completed */ - status = FLASH_WaitForLastOperation(ProgramTimeout); - } - - if((status == FLASH_COMPLETE)&& (WRP3_Data != 0xFF)) - { - OB->WRP3 = WRP3_Data; - - /* Wait for last operation to be completed */ - status = FLASH_WaitForLastOperation(ProgramTimeout); - } - - if(status != FLASH_TIMEOUT) - { - /* if the program operation is completed, disable the OPTPG Bit */ - FLASH->CR &= CR_OPTPG_Reset; - } - } - /* Return the write protection operation Status */ - return status; -} - -/** - * @brief Enables or disables the read out protection. - * @note If the user has already programmed the other option bytes before calling - * this function, he must re-program them since this function erases all option bytes. - * @param Newstate: new state of the ReadOut Protection. - * This parameter can be: ENABLE or DISABLE. - * @retval FLASH Status: The returned value can be: FLASH_ERROR_PG, - * FLASH_ERROR_WRP, FLASH_COMPLETE or FLASH_TIMEOUT. - */ -FLASH_Status FLASH_ReadOutProtection(FunctionalState NewState) -{ - FLASH_Status status = FLASH_COMPLETE; - /* Check the parameters */ - assert_param(IS_FUNCTIONAL_STATE(NewState)); - status = FLASH_WaitForLastOperation(EraseTimeout); - if(status == FLASH_COMPLETE) - { - /* Authorizes the small information block programming */ - FLASH->OPTKEYR = FLASH_KEY1; - FLASH->OPTKEYR = FLASH_KEY2; - FLASH->CR |= CR_OPTER_Set; - FLASH->CR |= CR_STRT_Set; - /* Wait for last operation to be completed */ - status = FLASH_WaitForLastOperation(EraseTimeout); - if(status == FLASH_COMPLETE) - { - /* if the erase operation is completed, disable the OPTER Bit */ - FLASH->CR &= CR_OPTER_Reset; - /* Enable the Option Bytes Programming operation */ - FLASH->CR |= CR_OPTPG_Set; - if(NewState != DISABLE) - { - OB->RDP = 0x00; - } - else - { - OB->RDP = RDP_Key; - } - /* Wait for last operation to be completed */ - status = FLASH_WaitForLastOperation(EraseTimeout); - - if(status != FLASH_TIMEOUT) - { - /* if the program operation is completed, disable the OPTPG Bit */ - FLASH->CR &= CR_OPTPG_Reset; - } - } - else - { - if(status != FLASH_TIMEOUT) - { - /* Disable the OPTER Bit */ - FLASH->CR &= CR_OPTER_Reset; - } - } - } - /* Return the protection operation Status */ - return status; -} - -/** - * @brief Programs the FLASH User Option Byte: IWDG_SW / RST_STOP / RST_STDBY. - * @param OB_IWDG: Selects the IWDG mode - * This parameter can be one of the following values: - * @arg OB_IWDG_SW: Software IWDG selected - * @arg OB_IWDG_HW: Hardware IWDG selected - * @param OB_STOP: Reset event when entering STOP mode. - * This parameter can be one of the following values: - * @arg OB_STOP_NoRST: No reset generated when entering in STOP - * @arg OB_STOP_RST: Reset generated when entering in STOP - * @param OB_STDBY: Reset event when entering Standby mode. - * This parameter can be one of the following values: - * @arg OB_STDBY_NoRST: No reset generated when entering in STANDBY - * @arg OB_STDBY_RST: Reset generated when entering in STANDBY - * @retval FLASH Status: The returned value can be: FLASH_ERROR_PG, - * FLASH_ERROR_WRP, FLASH_COMPLETE or FLASH_TIMEOUT. - */ -FLASH_Status FLASH_UserOptionByteConfig(uint16_t OB_IWDG, uint16_t OB_STOP, uint16_t OB_STDBY) -{ - FLASH_Status status = FLASH_COMPLETE; - - /* Check the parameters */ - assert_param(IS_OB_IWDG_SOURCE(OB_IWDG)); - assert_param(IS_OB_STOP_SOURCE(OB_STOP)); - assert_param(IS_OB_STDBY_SOURCE(OB_STDBY)); - - /* Authorize the small information block programming */ - FLASH->OPTKEYR = FLASH_KEY1; - FLASH->OPTKEYR = FLASH_KEY2; - - /* Wait for last operation to be completed */ - status = FLASH_WaitForLastOperation(ProgramTimeout); - - if(status == FLASH_COMPLETE) - { - /* Enable the Option Bytes Programming operation */ - FLASH->CR |= CR_OPTPG_Set; - - OB->USER = OB_IWDG | (uint16_t)(OB_STOP | (uint16_t)(OB_STDBY | ((uint16_t)0xF8))); - - /* Wait for last operation to be completed */ - status = FLASH_WaitForLastOperation(ProgramTimeout); - if(status != FLASH_TIMEOUT) - { - /* if the program operation is completed, disable the OPTPG Bit */ - FLASH->CR &= CR_OPTPG_Reset; - } - } - /* Return the Option Byte program Status */ - return status; -} - -/** - * @brief Returns the FLASH User Option Bytes values. - * @param None - * @retval The FLASH User Option Bytes values:IWDG_SW(Bit0), RST_STOP(Bit1) - * and RST_STDBY(Bit2). - */ -uint32_t FLASH_GetUserOptionByte(void) -{ - /* Return the User Option Byte */ - return (uint32_t)(FLASH->OBR >> 2); -} - -/** - * @brief Returns the FLASH Write Protection Option Bytes Register value. - * @param None - * @retval The FLASH Write Protection Option Bytes Register value - */ -uint32_t FLASH_GetWriteProtectionOptionByte(void) -{ - /* Return the Falsh write protection Register value */ - return (uint32_t)(FLASH->WRPR); -} - -/** - * @brief Checks whether the FLASH Read Out Protection Status is set or not. - * @param None - * @retval FLASH ReadOut Protection Status(SET or RESET) - */ -FlagStatus FLASH_GetReadOutProtectionStatus(void) -{ - FlagStatus readoutstatus = RESET; - if ((FLASH->OBR & RDPRT_Mask) != (uint32_t)RESET) - { - readoutstatus = SET; - } - else - { - readoutstatus = RESET; - } - return readoutstatus; -} - -/** - * @brief Checks whether the FLASH Prefetch Buffer status is set or not. - * @param None - * @retval FLASH Prefetch Buffer Status (SET or RESET). - */ -FlagStatus FLASH_GetPrefetchBufferStatus(void) -{ - FlagStatus bitstatus = RESET; - - if ((FLASH->ACR & ACR_PRFTBS_Mask) != (uint32_t)RESET) - { - bitstatus = SET; - } - else - { - bitstatus = RESET; - } - /* Return the new state of FLASH Prefetch Buffer Status (SET or RESET) */ - return bitstatus; -} - -/** - * @brief Enables or disables the specified FLASH interrupts. - * @param FLASH_IT: specifies the FLASH interrupt sources to be enabled or disabled. - * This parameter can be any combination of the following values: - * @arg FLASH_IT_ERROR: FLASH Error Interrupt - * @arg FLASH_IT_EOP: FLASH end of operation Interrupt - * @param NewState: new state of the specified Flash interrupts. - * This parameter can be: ENABLE or DISABLE. - * @retval None - */ -void FLASH_ITConfig(uint16_t FLASH_IT, FunctionalState NewState) -{ - /* Check the parameters */ - assert_param(IS_FLASH_IT(FLASH_IT)); - assert_param(IS_FUNCTIONAL_STATE(NewState)); - if(NewState != DISABLE) - { - /* Enable the interrupt sources */ - FLASH->CR |= FLASH_IT; - } - else - { - /* Disable the interrupt sources */ - FLASH->CR &= ~(uint32_t)FLASH_IT; - } -} - -/** - * @brief Checks whether the specified FLASH flag is set or not. - * @param FLASH_FLAG: specifies the FLASH flag to check. - * This parameter can be one of the following values: - * @arg FLASH_FLAG_BSY: FLASH Busy flag - * @arg FLASH_FLAG_PGERR: FLASH Program error flag - * @arg FLASH_FLAG_WRPRTERR: FLASH Write protected error flag - * @arg FLASH_FLAG_EOP: FLASH End of Operation flag - * @arg FLASH_FLAG_OPTERR: FLASH Option Byte error flag - * @retval The new state of FLASH_FLAG (SET or RESET). - */ -FlagStatus FLASH_GetFlagStatus(uint16_t FLASH_FLAG) -{ - FlagStatus bitstatus = RESET; - /* Check the parameters */ - assert_param(IS_FLASH_GET_FLAG(FLASH_FLAG)) ; - if(FLASH_FLAG == FLASH_FLAG_OPTERR) - { - if((FLASH->OBR & FLASH_FLAG_OPTERR) != (uint32_t)RESET) - { - bitstatus = SET; - } - else - { - bitstatus = RESET; - } - } - else - { - if((FLASH->SR & FLASH_FLAG) != (uint32_t)RESET) - { - bitstatus = SET; - } - else - { - bitstatus = RESET; - } - } - /* Return the new state of FLASH_FLAG (SET or RESET) */ - return bitstatus; -} - -/** - * @brief Clears the FLASH’s pending flags. - * @param FLASH_FLAG: specifies the FLASH flags to clear. - * This parameter can be any combination of the following values: - * @arg FLASH_FLAG_PGERR: FLASH Program error flag - * @arg FLASH_FLAG_WRPRTERR: FLASH Write protected error flag - * @arg FLASH_FLAG_EOP: FLASH End of Operation flag - * @retval None - */ -void FLASH_ClearFlag(uint16_t FLASH_FLAG) -{ - /* Check the parameters */ - assert_param(IS_FLASH_CLEAR_FLAG(FLASH_FLAG)) ; - - /* Clear the flags */ - FLASH->SR = FLASH_FLAG; -} - -/** - * @brief Returns the FLASH Status. - * @param None - * @retval FLASH Status: The returned value can be: FLASH_BUSY, FLASH_ERROR_PG, - * FLASH_ERROR_WRP or FLASH_COMPLETE - */ -FLASH_Status FLASH_GetStatus(void) -{ - FLASH_Status flashstatus = FLASH_COMPLETE; - - if((FLASH->SR & FLASH_FLAG_BSY) == FLASH_FLAG_BSY) - { - flashstatus = FLASH_BUSY; - } - else - { - if((FLASH->SR & FLASH_FLAG_PGERR) != 0) - { - flashstatus = FLASH_ERROR_PG; - } - else - { - if((FLASH->SR & FLASH_FLAG_WRPRTERR) != 0 ) - { - flashstatus = FLASH_ERROR_WRP; - } - else - { - flashstatus = FLASH_COMPLETE; - } - } - } - /* Return the Flash Status */ - return flashstatus; -} - -/** - * @brief Waits for a Flash operation to complete or a TIMEOUT to occur. - * @param Timeout: FLASH progamming Timeout - * @retval FLASH Status: The returned value can be: FLASH_ERROR_PG, - * FLASH_ERROR_WRP, FLASH_COMPLETE or FLASH_TIMEOUT. - */ -FLASH_Status FLASH_WaitForLastOperation(uint32_t Timeout) -{ - FLASH_Status status = FLASH_COMPLETE; - - /* Check for the Flash Status */ - status = FLASH_GetStatus(); - /* Wait for a Flash operation to complete or a TIMEOUT to occur */ - while((status == FLASH_BUSY) && (Timeout != 0x00)) - { - delay(); - status = FLASH_GetStatus(); - Timeout--; - } - if(Timeout == 0x00 ) - { - status = FLASH_TIMEOUT; - } - /* Return the operation status */ - return status; -} - -/** - * @brief Inserts a time delay. - * @param None - * @retval None - */ -static void delay(void) -{ - __IO uint32_t i = 0; - for(i = 0xFF; i != 0; i--) - { - } -} - -/** - * @} - */ - -/** - * @} - */ - -/** - * @} - */ - -/******************* (C) COPYRIGHT 2009 STMicroelectronics *****END OF FILE****/ -- cgit v1.2.3