marcus112
|
/*************************************************************************
* Function Name: USB_IO_Data
* Parameters: USB_Endpoint_t EP, pInt8U pBuffer, Int32U Size, void * pFn
*
* Return: USB_IO_Status_t
*
* Description: Prepare and send
*
*************************************************************************/
USB_IO_Status_t USB_IO_Data (USB_Endpoint_t EP, pInt8U pBuffer, Int32U Size, void * pFn)
{
#if __CORE__ < 7
Int32U Save;
#endif // __CORE__ < 7
pEpCnfg_t pEP = &EpCnfg[EP];
if (Size == (Int32U)-1)
{
pEP->Status = NOT_READY;
pEP->pFn = NULL;
}
else
{
#if __CORE__ < 7
ENTR_CRT_SECTION(Save);
#else
ENTR_CRT_SECTION();
#endif // __CORE__ < 7
if (!USB_EP_VALID(pEP))
{
#if __CORE__ < 7
EXT_CRT_SECTION(Save);
#else
EXT_CRT_SECTION();
#endif // __CORE__ < 7
return(NOT_VALID);
}
// lock buffer
if(pEP->Status == BEGIN_SERVICED)
{
#if __CORE__ < 7
EXT_CRT_SECTION(Save);
#else
EXT_CRT_SECTION();
#endif // __CORE__ < 7
return(NOT_READY);
}
pEP->Offset = 0;
pEP->pBuffer = pBuffer;
pEP->pFn = pFn;
if(!(pEP->Size = Size))
{
pEP->bZeroPacket = 1;
}
pEP->Status = NO_SERVICED;
USB_EP_IO(EP);
#if __CORE__ < 7
EXT_CRT_SECTION(Save);
#else
EXT_CRT_SECTION();
#endif // __CORE__ < 7
}
return(pEP->Status);
}
/*************************************************************************
* Function Name: USB_HwInit
* Parameters: none
*
* Return: none
*
* Description: Init USB
*
*************************************************************************/
void USB_HwInit(void)
{
NVIC_InitTypeDef NVIC_InitStructure;
GPIO_InitTypeDef GPIO_InitStructure;
// GPIO assign to the USB engine
RCC_APB2PeriphResetCmd( RCC_APB2Periph_GPIOA
| RCC_APB2Periph_GPIOD
| RCC_APB2Periph_AFIO, DISABLE);
RCC_APB2PeriphClockCmd( RCC_APB2Periph_GPIOA
| RCC_APB2Periph_GPIOD
| RCC_APB2Periph_AFIO, ENABLE);
// Power Control
GPIO_SetBits(GPIOD,GPIO_Pin_7);
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_7;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_Init(GPIOD, &GPIO_InitStructure);
// VBUS, ID
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_9 | GPIO_Pin_10 ;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_Init(GPIOA, &GPIO_InitStructure);
// DM, DP
// Configure PA11, PA12 as USB lines
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_11 | GPIO_Pin_12;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_Init(GPIOA, &GPIO_InitStructure);
// USBFSCLK = PLL1VCO / 3
RCC_OTGFSCLKConfig(USB_DIVIDER);
// Enable USB clock for USB FS OTG controller
RCC_AHBPeriphClockCmd(RCC_AHBPeriph_OTG_FS, ENABLE) ;
// Deinit
RCC_AHBPeriphResetCmd(RCC_AHBPeriph_OTG_FS,ENABLE);
RCC_AHBPeriphResetCmd(RCC_AHBPeriph_OTG_FS,DISABLE);
OTG_DEV_Init();
OTGD_FS_EnableDevInt();
// Disconnect device
USB_ConnectRes(FALSE);
// Init controls endpoints
USB_HwReset();
// USB interrupt connect to NVIC
NVIC_InitStructure.NVIC_IRQChannel = OTG_FS_IRQn;
NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = USB_INTR_LOW_PRIORITY;
NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0;
NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
NVIC_Init(&NVIC_InitStructure);
OTGD_FS_EnableGlobalInt();
}
/*************************************************************************
* Function Name: USB_HwReset
* Parameters: none
*
* Return: none
*
* Description: Reset USB engine
*
*************************************************************************/
void USB_HwReset (void)
{
Int32U Count;
// Clear realized EP flag
for(Count = 0; Count < ENP_MAX_NUMB; Count++)
{
EpCnfg[Count].MaxSize = 0;
}
// USB_Configure
USB_Configure(FALSE);
// Control EP Init
USB_RealizeEp(&USB_CtrlEpDescr0,NULL,TRUE);
USB_RealizeEp(&USB_CtrlEpDescr1,NULL,TRUE);
}
/*************************************************************************
* Function Name: USB_RealizeEp
* Parameters: const UsbStandardEpDescriptor_t * pEP_Desc,
* const UsbEP_ExtData_t * pUsbEP_ExtData, Boolean Enable
*
* Return: USB_ErrorCodes_t
*
* Description: Enable or disable an endpoint
*
*************************************************************************/
USB_ErrorCodes_t USB_RealizeEp(const UsbStandardEpDescriptor_t * pEP_Desc,
const UsbEP_ExtData_t * pUsbEP_ExtData,
Boolean Enable)
{
USB_Endpoint_t EP;
pEpCnfg_t pEP;
assert(pEP_Desc);
EP = (USB_Endpoint_t)USB_EpLogToPhysAdd(pEP_Desc->bEndpointAddress);
pEP = &EpCnfg[EP];
if (Enable)
{
// Set EP status
pEP->Status = NOT_READY;
// Init EP flags
pEP->Flags = 0;
// Set endpoint type
pEP->EpType = (UsbEpTransferType_t)pEP_Desc->bmAttributes.TransferType;
// Init EP max packet size
pEP->MaxSize = pEP_Desc->wMaxPacketSize;
OTGD_FS_PCD_EP_Open((EP_DESCRIPTOR *)pEP_Desc);
}
else
{
pEP->MaxSize = 0;
OTGD_FS_PCD_EP_Close(pEP_Desc->bEndpointAddress);
}
return(USB_OK);
}
/*************************************************************************
* Function Name: USB_SetAdd
* Parameters: Int32U DevAdd - device address between 0 - 127
*
* Return: none
*
* Description: Set device address
*
*************************************************************************/
void USB_SetAdd(Int32U DevAdd)
{
OTGD_FS_PCD_EP_SetAddress(DevAdd);
}
/*************************************************************************
* Function Name: USB_ConnectRes
* Parameters: Boolean Conn
*
* Return: none
*
* Description: Enable Pull-Up resistor
*
*************************************************************************/
void USB_ConnectRes (Boolean Conn)
{
if(Conn)
{
USB_DevConnect();
}
else
{
USB_DevDisconnect();
}
}
#if USB_REMOTE_WAKEUP != 0
/*************************************************************************
* Function Name: USB_WakeUp
* Parameters: none
*
* Return: none
*
* Description: Wake up Usb
*
*************************************************************************/
void USB_WakeUp (void)
{
}
#endif // USB_REMOTE_WAKEUP != 0
/*************************************************************************
* Function Name: USB_GetDevStatus
* Parameters: USB_DevStatusReqType_t Type
*
* Return: Boolean
*
* Description: Return USB device status
*
*************************************************************************/
Boolean USB_GetDevStatus (USB_DevStatusReqType_t Type)
{
switch (Type)
{
case USB_DevConnectStatus:
return(TRUE);
}
return(FALSE);
}
/*************************************************************************
* Function Name: USB_SetStallEP
* Parameters: USB_Endpoint_t EP, Boolean Stall
*
* Return: USB_ErrorCodes_t
*
* Description: The endpoint stall/unstall
*
*************************************************************************/
USB_ErrorCodes_t USB_SetStallEP (USB_Endpoint_t EP, Boolean Stall)
{
if(Stall)
{
OTGD_FS_PCD_EP_Stall(USB_EpPhysToLogAdd(EP));
EpCnfg[EP].Status = STALLED;
}
else
{
OTGD_FS_PCD_EP_ClrStall(USB_EpPhysToLogAdd(EP));
EpCnfg[EP].Status = NOT_READY;
}
return(USB_OK);
}
/*************************************************************************
* Function Name: USB_StallCtrlEP
* Parameters: none
*
* Return: none
*
* Description: Stall both direction of the CTRL EP
*
*************************************************************************/
void USB_StallCtrlEP (void)
{
EpCnfg[CTRL_ENP_IN].Status = STALLED;
EpCnfg[CTRL_ENP_OUT].Status = STALLED;
USB_SetStallEP(CTRL_ENP_IN,TRUE);
USB_SetStallEP(CTRL_ENP_OUT,TRUE);
}
/*************************************************************************
* Function Name: USB_GetStallEP
* Parameters: USB_Endpoint_t EP, pBoolean pStall
*
* Return: USB_ErrorCodes_t
*
* Description: Get stall state of the endpoint
*
*************************************************************************/
USB_ErrorCodes_t USB_GetStallEP (USB_Endpoint_t EP, pBoolean pStall)
{
if (!USB_EP_VALID(&EpCnfg[EP]))
{
return(USB_EP_NOT_VALID);
}
*pStall = STALLED == EpCnfg[EP].Status;
return (USB_OK);
}
/*************************************************************************
* Function Name: USB_EP_IO
* Parameters: USB_Endpoint_t EndPoint
*
* Return: none
*
* Description: Endpoints IO
*
*************************************************************************/
void USB_EP_IO(USB_Endpoint_t EP)
{
pEpCnfg_t pEP = &EpCnfg[EP];
assert(USB_EP_VALID(pEP));
if(pEP->Status != NO_SERVICED)
{
return;
}
if(EP & 1)
{
// IN
// Set Status
pEP->Status = BEGIN_SERVICED;
OTGD_FS_PCD_EP_Write ( USB_EpPhysToLogAdd(EP),
pEP->pBuffer,
pEP->Size);
}
else
{
// OUT
pEP->Status = BEGIN_SERVICED;
OTGD_FS_PCD_EP_Read ( USB_EpPhysToLogAdd(EP),
pEP->pBuffer,
pEP->Size);
}
}
/*************************************************************************
* Function Name: USB_EpLogToPhysAdd
* Parameters: Int8U EpLogAdd
*
* Return: USB_Endpoint_t
*
* Description: Convert the logical to physical address
*
*************************************************************************/
USB_Endpoint_t USB_EpLogToPhysAdd (Int8U EpLogAdd)
{
USB_Endpoint_t Address = (USB_Endpoint_t)((EpLogAdd & 0x0F)<<1);
if(EpLogAdd & 0x80)
{
++Address;
}
return(Address);
}
/*************************************************************************
* Function Name: USB_EpPhysToLogAdd
* Parameters: USB_Endpoint_t EP
*
* Return: Int8U
*
* Description: Convert physical to logical address
*
*************************************************************************/
Int8U USB_EpPhysToLogAdd (USB_Endpoint_t EP)
{
Int8U Addr = EP >> 1;
if(EP & 1)
{
Addr |= 0x80;
}
return(Addr);
}
#if USB_SOF_EVENT > 0
/*************************************************************************
* Function Name: USB_GetFrameNumb
* Parameters: none
*
* Return: Int32U
*
* Description: Return current value of SOF number
*
*************************************************************************/
Int32U USB_GetFrameNumb (void)
{
return(0);
}
#endif // USB_SOF_EVENT > 0
/*************************************************************************
* Function Name: USB_StatusPhase
* Parameters: Boolean In
*
* Return: none
*
* Description: Prepare status phase
*
*************************************************************************/
void USB_StatusPhase (Boolean In)
{
if(In)
{
if(UsbEp0SetupPacket.bRequest == SET_ADDRESS)
{
USB_SetAdd(UsbEp0SetupPacket.wValue.Lo);
}
USB_IO_Data(CTRL_ENP_IN,NULL,0,NULL);
}
else
{
USB_IO_Data(CTRL_ENP_OUT,NULL,0,NULL);
}
}
/**
* @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.
* @note This functions erases all option bytes and then deactivates the Read
* protection. If the user needs to keep the Read protection activated,
* he has to enable it after this function call (using
* FLASH_ReadOutProtection function)
* @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;
/* Disable the Read protection */
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;
}
Voilà dans l'ordre il y a buffer qui est sensé envoyer les données... en suite des fonctions pouvant servir à l'usb et enfin des fonction pour utiliser la mémoire flash
|