diff options
Diffstat (limited to 'stm32lib/src/stm32f10x_flash.c')
| -rw-r--r-- | stm32lib/src/stm32f10x_flash.c | 916 |
1 files changed, 0 insertions, 916 deletions
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****/
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