bstanwell/ch32v20x-examples
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V1.9

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This commit is contained in:
qiyongshuang
2023-12-01 10:33:09 +08:00
parent de6d68c654
commit ec059e0b18
395 changed files with 37947 additions and 28760 deletions
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EVT/EXAM/SRC/Peripheral/src/ch32v20x_flash.c
+285 -2
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@@ -24,7 +24,7 @@
#define CR_OPTER_Reset ((uint32_t)0xFFFFFFDF)
#define CR_STRT_Set ((uint32_t)0x00000040)
#define CR_LOCK_Set ((uint32_t)0x00000080)
#define CR_FAST_LOCK_Set ((uint32_t)0x00008000)
#define CR_FLOCK_Set ((uint32_t)0x00008000)
#define CR_PAGE_PG ((uint32_t)0x00010000)
#define CR_PAGE_ER ((uint32_t)0x00020000)
#define CR_BER32 ((uint32_t)0x00040000)
@@ -60,6 +60,20 @@
#define EraseTimeout ((uint32_t)0x000B0000)
#define ProgramTimeout ((uint32_t)0x00005000)
/* Flash Program Vaild Address */
#define ValidAddrStart (FLASH_BASE)
#if defined(CH32V20x_D8) || defined(CH32V20x_D8W)
#define ValidAddrEnd (FLASH_BASE + 0x78000)
#else
#define ValidAddrEnd (FLASH_BASE + 0x38000)
#endif
/* FLASH Size */
#define Size_256B 0x100
#define Size_4KB 0x1000
#define Size_32KB 0x8000
/*********************************************************************
* @fn FLASH_Unlock
*
@@ -807,7 +821,7 @@ void FLASH_Unlock_Fast(void)
*/
void FLASH_Lock_Fast(void)
{
FLASH->CTLR |= CR_FAST_LOCK_Set;
FLASH->CTLR |= CR_FLOCK_Set;
}
/*********************************************************************
@@ -965,3 +979,272 @@ void FLASH_GetMACAddress(uint8_t *Buffer)
Buffer[4] = value & 0xFF;
Buffer[5] = (value >> 8) & 0xFF;
}
/*********************************************************************
* @fn ROM_ERASE
*
* @brief Select erases a specified FLASH .
*
* @param StartAddr - Erases Flash start address(StartAddr%256 == 0).
* Cnt - Erases count.
* Erase_Size - Erases size select.The returned value can be:
* Size_32KB, Size_4KB, Size_256B.
*
* @return none.
*/
static void ROM_ERASE(uint32_t StartAddr, uint32_t Cnt, uint32_t Erase_Size)
{
do{
if(Erase_Size == Size_32KB)
{
FLASH->CTLR |= CR_BER32;
}
else if(Erase_Size == Size_4KB)
{
FLASH->CTLR |= CR_PER_Set;
}
else if(Erase_Size == Size_256B)
{
FLASH->CTLR |= CR_PAGE_ER;
}
FLASH->ADDR = StartAddr;
FLASH->CTLR |= CR_STRT_Set;
while(FLASH->STATR & SR_BSY)
;
if(Erase_Size == Size_32KB)
{
FLASH->CTLR &= ~CR_BER32;
StartAddr += Size_32KB;
}
else if(Erase_Size == Size_4KB)
{
FLASH->CTLR &= ~CR_PER_Set;
StartAddr += Size_4KB;
}
else if(Erase_Size == Size_256B)
{
FLASH->CTLR &= ~CR_PAGE_ER;
StartAddr += Size_256B;
}
}while(--Cnt);
}
/*********************************************************************
* @fn FLASH_ROM_ERASE
*
* @brief Erases a specified FLASH .
*
* @param StartAddr - Erases Flash start address(StartAddr%256 == 0).
* Length - Erases Flash start Length(Length%256 == 0).
*
* @return FLASH Status - The returned value can be: FLASH_ADR_RANGE_ERROR,
* FLASH_ALIGN_ERROR, FLASH_OP_RANGE_ERROR or FLASH_COMPLETE.
*/
FLASH_Status FLASH_ROM_ERASE(uint32_t StartAddr, uint32_t Length)
{
uint32_t Addr0 = 0, Addr1 = 0, Length0 = 0, Length1 = 0;
FLASH_Status status = FLASH_COMPLETE;
if((StartAddr < ValidAddrStart) || (StartAddr >= ValidAddrEnd))
{
return FLASH_ADR_RANGE_ERROR;
}
if((StartAddr + Length) > ValidAddrEnd)
{
return FLASH_OP_RANGE_ERROR;
}
if((StartAddr & (Size_256B-1)) || (Length & (Size_256B-1)) || (Length == 0))
{
return FLASH_ALIGN_ERROR;
}
/* Authorize the FPEC of Bank1 Access */
FLASH->KEYR = FLASH_KEY1;
FLASH->KEYR = FLASH_KEY2;
/* Fast mode unlock */
FLASH->MODEKEYR = FLASH_KEY1;
FLASH->MODEKEYR = FLASH_KEY2;
Addr0 = StartAddr;
if(Length >= Size_32KB)
{
Length0 = Size_32KB - (Addr0 & (Size_32KB - 1));
Addr1 = StartAddr + Length0;
Length1 = Length - Length0;
}
else if(Length >= Size_4KB)
{
Length0 = Size_4KB - (Addr0 & (Size_4KB - 1));
Addr1 = StartAddr + Length0;
Length1 = Length - Length0;
}
else if(Length >= Size_256B)
{
Length0 = Length;
}
/* Erase 32KB */
if(Length0 >= Size_32KB)//front
{
Length = Length0;
if(Addr0 & (Size_32KB - 1))
{
Length0 = Size_32KB - (Addr0 & (Size_32KB - 1));
}
else
{
Length0 = 0;
}
ROM_ERASE((Addr0 + Length0), ((Length - Length0) >> 15), Size_32KB);
}
if(Length1 >= Size_32KB)//back
{
StartAddr = Addr1;
Length = Length1;
if((Addr1 + Length1) & (Size_32KB - 1))
{
Addr1 = ((StartAddr + Length1) & (~(Size_32KB - 1)));
Length1 = (StartAddr + Length1) & (Size_32KB - 1);
}
else
{
Length1 = 0;
}
ROM_ERASE(StartAddr, ((Length - Length1) >> 15), Size_32KB);
}
/* Erase 4KB */
if(Length0 >= Size_4KB) //front
{
Length = Length0;
if(Addr0 & (Size_4KB - 1))
{
Length0 = Size_4KB - (Addr0 & (Size_4KB - 1));
}
else
{
Length0 = 0;
}
ROM_ERASE((Addr0 + Length0), ((Length - Length0) >> 12), Size_4KB);
}
if(Length1 >= Size_4KB) //back
{
StartAddr = Addr1;
Length = Length1;
if((Addr1 + Length1) & (Size_4KB - 1))
{
Addr1 = ((StartAddr + Length1) & (~(Size_4KB - 1)));
Length1 = (StartAddr + Length1) & (Size_4KB - 1);
}
else
{
Length1 = 0;
}
ROM_ERASE(StartAddr, ((Length - Length1) >> 12), Size_4KB);
}
/* Erase 256B */
if(Length0)//front
{
ROM_ERASE(Addr0, (Length0 >> 8), Size_256B);
}
if(Length1)//back
{
ROM_ERASE(Addr1, (Length1 >> 8), Size_256B);
}
FLASH->CTLR |= CR_FLOCK_Set;
FLASH->CTLR |= CR_LOCK_Set;
return status;
}
/*********************************************************************
* @fn FLASH_ROM_WRITE
*
* @brief Writes a specified FLASH .
*
* @param StartAddr - Writes Flash start address(StartAddr%256 == 0).
* Length - Writes Flash start Length(Length%256 == 0).
* pbuf - Writes Flash value buffer.
*
* @return FLASH Status - The returned value can be: FLASH_ADR_RANGE_ERROR,
* FLASH_ALIGN_ERROR, FLASH_OP_RANGE_ERROR or FLASH_COMPLETE.
*/
FLASH_Status FLASH_ROM_WRITE(uint32_t StartAddr, uint32_t *pbuf, uint32_t Length)
{
uint32_t i;
uint8_t size;
FLASH_Status status = FLASH_COMPLETE;
if((StartAddr < ValidAddrStart) || (StartAddr >= ValidAddrEnd))
{
return FLASH_ADR_RANGE_ERROR;
}
if((StartAddr + Length) > ValidAddrEnd)
{
return FLASH_OP_RANGE_ERROR;
}
if((StartAddr & (Size_256B-1)) || (Length & (Size_256B-1)) || (Length == 0))
{
return FLASH_ALIGN_ERROR;
}
i = Length >> 8;
/* Authorize the FPEC of Bank1 Access */
FLASH->KEYR = FLASH_KEY1;
FLASH->KEYR = FLASH_KEY2;
/* Fast program mode unlock */
FLASH->MODEKEYR = FLASH_KEY1;
FLASH->MODEKEYR = FLASH_KEY2;
do{
FLASH->CTLR |= CR_PAGE_PG;
while(FLASH->STATR & SR_BSY)
;
while(FLASH->STATR & SR_WR_BSY)
;
size = 64;
while(size)
{
*(uint32_t *)StartAddr = *(uint32_t *)pbuf;
StartAddr += 4;
pbuf += 1;
size -= 1;
while(FLASH->STATR & SR_WR_BSY)
;
}
FLASH->CTLR |= CR_PG_STRT;
while(FLASH->STATR & SR_BSY)
;
FLASH->CTLR &= ~CR_PAGE_PG;
}while(--i);
FLASH->CTLR |= CR_FLOCK_Set;
FLASH->CTLR |= CR_LOCK_Set;
return status;
}