From 0ddd521fa7d59d0651a90e92b7174d042cd83d4a Mon Sep 17 00:00:00 2001 From: Perry Hung Date: Tue, 30 Mar 2010 22:59:55 -0400 Subject: Delete STM32 Standard Peripheral Library. --- stm32lib/src/stm32f10x_flash.c | 916 ----------------------------------------- 1 file changed, 916 deletions(-) delete mode 100644 stm32lib/src/stm32f10x_flash.c (limited to 'stm32lib/src/stm32f10x_flash.c') diff --git a/stm32lib/src/stm32f10x_flash.c b/stm32lib/src/stm32f10x_flash.c deleted file mode 100644 index 66952f2..0000000 --- a/stm32lib/src/stm32f10x_flash.c +++ /dev/null @@ -1,916 +0,0 @@ -/******************** (C) COPYRIGHT 2008 STMicroelectronics ******************** -* File Name : stm32f10x_flash.c -* Author : MCD Application Team -* Version : V2.0.2 -* Date : 07/11/2008 -* Description : This file provides all the FLASH firmware functions. -******************************************************************************** -* 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. -*******************************************************************************/ - -/* Includes ------------------------------------------------------------------*/ -#include "stm32f10x_flash.h" -void test(u32 x) { - int y; - x = 1; - y = x; -} -/* Private typedef -----------------------------------------------------------*/ -/* Private define ------------------------------------------------------------*/ -/* Flash Access Control Register bits */ -#define ACR_LATENCY_Mask ((u32)0x00000038) -#define ACR_HLFCYA_Mask ((u32)0xFFFFFFF7) -#define ACR_PRFTBE_Mask ((u32)0xFFFFFFEF) - -#ifdef _FLASH_PROG -/* Flash Access Control Register bits */ -#define ACR_PRFTBS_Mask ((u32)0x00000020) - -/* Flash Control Register bits */ -#define CR_PG_Set ((u32)0x00000001) -#define CR_PG_Reset ((u32)0x00001FFE) - -#define CR_PER_Set ((u32)0x00000002) -#define CR_PER_Reset ((u32)0x00001FFD) - -#define CR_MER_Set ((u32)0x00000004) -#define CR_MER_Reset ((u32)0x00001FFB) - -#define CR_OPTPG_Set ((u32)0x00000010) -#define CR_OPTPG_Reset ((u32)0x00001FEF) - -#define CR_OPTER_Set ((u32)0x00000020) -#define CR_OPTER_Reset ((u32)0x00001FDF) - -#define CR_STRT_Set ((u32)0x00000040) - -#define CR_LOCK_Set ((u32)0x00000080) - -/* FLASH Mask */ -#define RDPRT_Mask ((u32)0x00000002) -#define WRP0_Mask ((u32)0x000000FF) -#define WRP1_Mask ((u32)0x0000FF00) -#define WRP2_Mask ((u32)0x00FF0000) -#define WRP3_Mask ((u32)0xFF000000) - -/* FLASH Keys */ -#define RDP_Key ((u16)0x00A5) -#define FLASH_KEY1 ((u32)0x45670123) -#define FLASH_KEY2 ((u32)0xCDEF89AB) - -/* Delay definition */ -#define EraseTimeout ((u32)0x00000FFF) -#define ProgramTimeout ((u32)0x0000000F) -#endif - -/* Private macro -------------------------------------------------------------*/ -/* Private variables ---------------------------------------------------------*/ -/* Private function prototypes -----------------------------------------------*/ -#ifdef _FLASH_PROG -static void delay(void); -#endif - -/* Private functions ---------------------------------------------------------*/ -/******************************************************************************* -* Function Name : FLASH_SetLatency -* Description : Sets the code latency value. -* Input : - FLASH_Latency: specifies the FLASH Latency value. -* This parameter can be one of the following values: -* - FLASH_Latency_0: FLASH Zero Latency cycle -* - FLASH_Latency_1: FLASH One Latency cycle -* - FLASH_Latency_2: FLASH Two Latency cycles -* Output : None -* Return : None -*******************************************************************************/ -void FLASH_SetLatency(u32 FLASH_Latency) -{ - /* Check the parameters */ - assert_param(IS_FLASH_LATENCY(FLASH_Latency)); - - /* Sets the Latency value */ - FLASH->ACR &= ACR_LATENCY_Mask; - FLASH->ACR |= FLASH_Latency; -} - -/******************************************************************************* -* Function Name : FLASH_HalfCycleAccessCmd -* Description : Enables or disables the Half cycle flash access. -* Input : - FLASH_HalfCycle: specifies the FLASH Half cycle Access mode. -* This parameter can be one of the following values: -* - FLASH_HalfCycleAccess_Enable: FLASH Half Cycle Enable -* - FLASH_HalfCycleAccess_Disable: FLASH Half Cycle Disable -* Output : None -* Return : None -*******************************************************************************/ -void FLASH_HalfCycleAccessCmd(u32 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; -} - -/******************************************************************************* -* Function Name : FLASH_PrefetchBufferCmd -* Description : Enables or disables the Prefetch Buffer. -* Input : - FLASH_PrefetchBuffer: specifies the Prefetch buffer status. -* This parameter can be one of the following values: -* - FLASH_PrefetchBuffer_Enable: FLASH Prefetch Buffer Enable -* - FLASH_PrefetchBuffer_Disable: FLASH Prefetch Buffer Disable -* Output : None -* Return : None -*******************************************************************************/ - -void FLASH_PrefetchBufferCmd(u32 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; -} - -#ifdef _FLASH_PROG -/******************************************************************************* -* Function Name : FLASH_Unlock -* Description : Unlocks the FLASH Program Erase Controller. -* Input : None -* Output : None -* Return : None -*******************************************************************************/ -void FLASH_Unlock(void) -{ - /* Authorize the FPEC Access */ - FLASH->KEYR = FLASH_KEY1; - FLASH->KEYR = FLASH_KEY2; -} - -/******************************************************************************* -* Function Name : FLASH_Lock -* Description : Locks the FLASH Program Erase Controller. -* Input : None -* Output : None -* Return : None -*******************************************************************************/ -void FLASH_Lock(void) -{ - /* Set the Lock Bit to lock the FPEC and the FCR */ - FLASH->CR |= CR_LOCK_Set; -} - -/******************************************************************************* -* Function Name : FLASH_ErasePage -* Description : Erases a specified FLASH page. -* Input : - Page_Address: The page address to be erased. -* Output : None -* Return : FLASH Status: The returned value can be: FLASH_BUSY, -* FLASH_ERROR_PG, FLASH_ERROR_WRP, FLASH_COMPLETE or -* FLASH_TIMEOUT. -*******************************************************************************/ -FLASH_Status FLASH_ErasePage(u32 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_BUSY) - { - /* if the erase operation is completed, disable the PER Bit */ - FLASH->CR &= CR_PER_Reset; - } - } - /* Return the Erase Status */ - return status; -} - -/******************************************************************************* -* Function Name : FLASH_EraseAllPages -* Description : Erases all FLASH pages. -* Input : None -* Output : None -* Return : FLASH Status: The returned value can be: FLASH_BUSY, -* 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_BUSY) - { - /* if the erase operation is completed, disable the MER Bit */ - FLASH->CR &= CR_MER_Reset; - } - } - /* Return the Erase Status */ - return status; -} - -/******************************************************************************* -* Function Name : FLASH_EraseOptionBytes -* Description : Erases the FLASH option bytes. -* Input : None -* Output : None -* Return : FLASH Status: The returned value can be: FLASH_BUSY, -* 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_BUSY) - { - /* if the program operation is completed, disable the OPTPG Bit */ - FLASH->CR &= CR_OPTPG_Reset; - } - } - else - { - if (status != FLASH_BUSY) - { - /* Disable the OPTPG Bit */ - FLASH->CR &= CR_OPTPG_Reset; - } - } - } - /* Return the erase status */ - return status; -} - -/******************************************************************************* -* Function Name : FLASH_ProgramWord -* Description : Programs a word at a specified address. -* Input : - Address: specifies the address to be programmed. -* - Data: specifies the data to be programmed. -* Output : None -* Return : FLASH Status: The returned value can be: FLASH_BUSY, -* FLASH_ERROR_PG, FLASH_ERROR_WRP, FLASH_COMPLETE or -* FLASH_TIMEOUT. -*******************************************************************************/ -FLASH_Status FLASH_ProgramWord(u32 Address, u32 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 first - half word */ - FLASH->CR |= CR_PG_Set; - - *(vu16*)Address = (u16)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 */ - *(vu16*)(Address + 2) = Data >> 16; - - /* Wait for last operation to be completed */ - status = FLASH_WaitForLastOperation(ProgramTimeout); - - if(status != FLASH_BUSY) - { - /* Disable the PG Bit */ - FLASH->CR &= CR_PG_Reset; - } - } - else - { - if (status != FLASH_BUSY) - { - /* Disable the PG Bit */ - FLASH->CR &= CR_PG_Reset; - } - } - } - /* Return the Program Status */ - return status; -} - -/******************************************************************************* -* Function Name : FLASH_ProgramHalfWord -* Description : Programs a half word at a specified address. -* Input : - Address: specifies the address to be programmed. -* - Data: specifies the data to be programmed. -* Output : None -* Return : FLASH Status: The returned value can be: FLASH_BUSY, -* FLASH_ERROR_PG, FLASH_ERROR_WRP, FLASH_COMPLETE or -* FLASH_TIMEOUT. -*******************************************************************************/ -FLASH_Status FLASH_ProgramHalfWord(u32 Address, u16 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; - - *(vu16*)Address = Data; - /* Wait for last operation to be completed */ - status = FLASH_WaitForLastOperation(ProgramTimeout); - - if(status != FLASH_BUSY) - { - /* if the program operation is completed, disable the PG Bit */ - FLASH->CR &= CR_PG_Reset; - } - } - /* Return the Program Status */ - return status; -} - -/******************************************************************************* -* Function Name : FLASH_ProgramOptionByteData -* Description : Programs a half word at a specified Option Byte Data address. -* Input : - Address: specifies the address to be programmed. -* This parameter can be 0x1FFFF804 or 0x1FFFF806. -* - Data: specifies the data to be programmed. -* Output : None -* Return : FLASH Status: The returned value can be: FLASH_BUSY, -* FLASH_ERROR_PG, FLASH_ERROR_WRP, FLASH_COMPLETE or -* FLASH_TIMEOUT. -*******************************************************************************/ -FLASH_Status FLASH_ProgramOptionByteData(u32 Address, u8 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; - *(vu16*)Address = Data; - - /* Wait for last operation to be completed */ - status = FLASH_WaitForLastOperation(ProgramTimeout); - - if(status != FLASH_BUSY) - { - /* if the program operation is completed, disable the OPTPG Bit */ - FLASH->CR &= CR_OPTPG_Reset; - } - } - /* Return the Option Byte Data Program Status */ - return status; -} - -/******************************************************************************* -* Function Name : FLASH_EnableWriteProtection -* Description : Write protects the desired pages -* Input : - FLASH_Pages: specifies the address of the pages to be -* write protected. This parameter can be: -* - For STM32F10Xxx Medium-density devices (FLASH page size equal to 1 KB) -* - A value between FLASH_WRProt_Pages0to3 and -* FLASH_WRProt_Pages124to127 -* - For STM32F10Xxx High-density devices (FLASH page size equal to 2 KB) -* - A value between FLASH_WRProt_Pages0to1 and -* FLASH_WRProt_Pages60to61 or FLASH_WRProt_Pages62to255 -* - FLASH_WRProt_AllPages -* Output : None -* Return : FLASH Status: The returned value can be: FLASH_BUSY, -* FLASH_ERROR_PG, FLASH_ERROR_WRP, FLASH_COMPLETE or -* FLASH_TIMEOUT. -*******************************************************************************/ -FLASH_Status FLASH_EnableWriteProtection(u32 FLASH_Pages) -{ - u16 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 = (u32)(~FLASH_Pages); - WRP0_Data = (vu16)(FLASH_Pages & WRP0_Mask); - WRP1_Data = (vu16)((FLASH_Pages & WRP1_Mask) >> 8); - WRP2_Data = (vu16)((FLASH_Pages & WRP2_Mask) >> 16); - WRP3_Data = (vu16)((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_BUSY) - { - /* if the program operation is completed, disable the OPTPG Bit */ - FLASH->CR &= CR_OPTPG_Reset; - } - } - /* Return the write protection operation Status */ - return status; -} - -/******************************************************************************* -* Function Name : FLASH_ReadOutProtection -* Description : Enables or disables the read out protection. -* 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. -* Input : - Newstate: new state of the ReadOut Protection. -* This parameter can be: ENABLE or DISABLE. -* Output : None -* Return : FLASH Status: The returned value can be: FLASH_BUSY, -* 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_BUSY) - { - /* if the program operation is completed, disable the OPTPG Bit */ - FLASH->CR &= CR_OPTPG_Reset; - } - } - else - { - if(status != FLASH_BUSY) - { - /* Disable the OPTER Bit */ - FLASH->CR &= CR_OPTER_Reset; - } - } - } - /* Return the protection operation Status */ - return status; -} - -/******************************************************************************* -* Function Name : FLASH_UserOptionByteConfig -* Description : Programs the FLASH User Option Byte: IWDG_SW / RST_STOP / -* RST_STDBY. -* Input : - OB_IWDG: Selects the IWDG mode -* This parameter can be one of the following values: -* - OB_IWDG_SW: Software IWDG selected -* - OB_IWDG_HW: Hardware IWDG selected -* - OB_STOP: Reset event when entering STOP mode. -* This parameter can be one of the following values: -* - OB_STOP_NoRST: No reset generated when entering in STOP -* - OB_STOP_RST: Reset generated when entering in STOP -* - OB_STDBY: Reset event when entering Standby mode. -* This parameter can be one of the following values: -* - OB_STDBY_NoRST: No reset generated when entering in STANDBY -* - OB_STDBY_RST: Reset generated when entering in STANDBY -* Output : None -* Return : FLASH Status: The returned value can be: FLASH_BUSY, -* FLASH_ERROR_PG, FLASH_ERROR_WRP, FLASH_COMPLETE or -* FLASH_TIMEOUT. -*******************************************************************************/ -FLASH_Status FLASH_UserOptionByteConfig(u16 OB_IWDG, u16 OB_STOP, u16 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 | OB_STOP |OB_STDBY) | (u16)0xF8; - - /* Wait for last operation to be completed */ - status = FLASH_WaitForLastOperation(ProgramTimeout); - - if(status != FLASH_BUSY) - { - /* if the program operation is completed, disable the OPTPG Bit */ - FLASH->CR &= CR_OPTPG_Reset; - } - } - /* Return the Option Byte program Status */ - return status; -} - -/******************************************************************************* -* Function Name : FLASH_GetUserOptionByte -* Description : Returns the FLASH User Option Bytes values. -* Input : None -* Output : None -* Return : The FLASH User Option Bytes values:IWDG_SW(Bit0), RST_STOP(Bit1) -* and RST_STDBY(Bit2). -*******************************************************************************/ -u32 FLASH_GetUserOptionByte(void) -{ - /* Return the User Option Byte */ - return (u32)(FLASH->OBR >> 2); -} - -/******************************************************************************* -* Function Name : FLASH_GetWriteProtectionOptionByte -* Description : Returns the FLASH Write Protection Option Bytes Register value. -* Input : None -* Output : None -* Return : The FLASH Write Protection Option Bytes Register value -*******************************************************************************/ -u32 FLASH_GetWriteProtectionOptionByte(void) -{ - /* Return the Falsh write protection Register value */ - return (u32)(FLASH->WRPR); -} - -/******************************************************************************* -* Function Name : FLASH_GetReadOutProtectionStatus -* Description : Checks whether the FLASH Read Out Protection Status is set -* or not. -* Input : None -* Output : None -* Return : FLASH ReadOut Protection Status(SET or RESET) -*******************************************************************************/ -FlagStatus FLASH_GetReadOutProtectionStatus(void) -{ - FlagStatus readoutstatus = RESET; - - if ((FLASH->OBR & RDPRT_Mask) != (u32)RESET) - { - readoutstatus = SET; - } - else - { - readoutstatus = RESET; - } - return readoutstatus; -} - -/******************************************************************************* -* Function Name : FLASH_GetPrefetchBufferStatus -* Description : Checks whether the FLASH Prefetch Buffer status is set or not. -* Input : None -* Output : None -* Return : FLASH Prefetch Buffer Status (SET or RESET). -*******************************************************************************/ -FlagStatus FLASH_GetPrefetchBufferStatus(void) -{ - FlagStatus bitstatus = RESET; - - if ((FLASH->ACR & ACR_PRFTBS_Mask) != (u32)RESET) - { - bitstatus = SET; - } - else - { - bitstatus = RESET; - } - /* Return the new state of FLASH Prefetch Buffer Status (SET or RESET) */ - return bitstatus; -} - -/******************************************************************************* -* Function Name : FLASH_ITConfig -* Description : Enables or disables the specified FLASH interrupts. -* Input : - FLASH_IT: specifies the FLASH interrupt sources to be -* enabled or disabled. -* This parameter can be any combination of the following values: -* - FLASH_IT_ERROR: FLASH Error Interrupt -* - FLASH_IT_EOP: FLASH end of operation Interrupt -* Output : None -* Return : None -*******************************************************************************/ -void FLASH_ITConfig(u16 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 &= ~(u32)FLASH_IT; - } -} - -/******************************************************************************* -* Function Name : FLASH_GetFlagStatus -* Description : Checks whether the specified FLASH flag is set or not. -* Input : - FLASH_FLAG: specifies the FLASH flag to check. -* This parameter can be one of the following values: -* - FLASH_FLAG_BSY: FLASH Busy flag -* - FLASH_FLAG_PGERR: FLASH Program error flag -* - FLASH_FLAG_WRPRTERR: FLASH Write protected error flag -* - FLASH_FLAG_EOP: FLASH End of Operation flag -* - FLASH_FLAG_OPTERR: FLASH Option Byte error flag -* Output : None -* Return : The new state of FLASH_FLAG (SET or RESET). -*******************************************************************************/ -FlagStatus FLASH_GetFlagStatus(u16 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) != (u32)RESET) - { - bitstatus = SET; - } - else - { - bitstatus = RESET; - } - } - else - { - if((FLASH->SR & FLASH_FLAG) != (u32)RESET) - { - bitstatus = SET; - } - else - { - bitstatus = RESET; - } - } - /* Return the new state of FLASH_FLAG (SET or RESET) */ - return bitstatus; -} - -/******************************************************************************* -* Function Name : FLASH_ClearFlag -* Description : Clears the FLASH’s pending flags. -* Input : - FLASH_FLAG: specifies the FLASH flags to clear. -* This parameter can be any combination of the following values: -* - FLASH_FLAG_BSY: FLASH Busy flag -* - FLASH_FLAG_PGERR: FLASH Program error flag -* - FLASH_FLAG_WRPRTERR: FLASH Write protected error flag -* - FLASH_FLAG_EOP: FLASH End of Operation flag -* Output : None -* Return : None -*******************************************************************************/ -void FLASH_ClearFlag(u16 FLASH_FLAG) -{ - /* Check the parameters */ - assert_param(IS_FLASH_CLEAR_FLAG(FLASH_FLAG)) ; - - /* Clear the flags */ - FLASH->SR = FLASH_FLAG; -} - -/******************************************************************************* -* Function Name : FLASH_GetStatus -* Description : Returns the FLASH Status. -* Input : None -* Output : None -* Return : 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) - { - flashstatus = FLASH_ERROR_PG; - } - else - { - if(FLASH->SR & FLASH_FLAG_WRPRTERR) - { - flashstatus = FLASH_ERROR_WRP; - } - else - { - flashstatus = FLASH_COMPLETE; - } - } - } - /* Return the Flash Status */ - return flashstatus; -} - -/******************************************************************************* -* Function Name : FLASH_WaitForLastOperation -* Description : Waits for a Flash operation to complete or a TIMEOUT to occur. -* Input : - Timeout: FLASH progamming Timeout -* Output : None -* Return : FLASH Status: The returned value can be: FLASH_BUSY, -* FLASH_ERROR_PG, FLASH_ERROR_WRP, FLASH_COMPLETE or -* FLASH_TIMEOUT. -*******************************************************************************/ -FLASH_Status FLASH_WaitForLastOperation(u32 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; -} - -/******************************************************************************* -* Function Name : delay -* Description : Inserts a time delay. -* Input : None -* Output : None -* Return : None -*******************************************************************************/ -static void delay(void) -{ - vu32 i = 0; - - for(i = 0xFF; i != 0; i--) - { - } -} -#endif - -/******************* (C) COPYRIGHT 2008 STMicroelectronics *****END OF FILE****/ -- cgit v1.2.3