河北水利局项目
This commit is contained in:
618
shuangjia/SPI_Flash.c
Normal file
618
shuangjia/SPI_Flash.c
Normal file
@@ -0,0 +1,618 @@
|
||||
/**********************************************************************
|
||||
45DB011 Max 20MHz clock, using 8 MHz click, 512 Pages (264 Bytes/Page)
|
||||
MX25l8006EM2C 台湾旺宏 8M字节 86/66/33MHZ 页256Byte 最大5ms 10万次擦写
|
||||
|
||||
**********************************************************************/
|
||||
|
||||
//#include "stm32f10x_lib.h"
|
||||
#include "SPI_Flash.h"
|
||||
#include "Flash.h"
|
||||
|
||||
#define FLASH_PAGE_SIZE 256
|
||||
|
||||
__no_init unsigned char spi_buf[FLASH_PAGE_SIZE]@0x20004000;//[256];;
|
||||
//__no_init SPI_InitTypeDef SPI_InitStructure@0x20006000;//[256];;
|
||||
//__no_init GPIO_InitTypeDef GPIO_InitStructure@0x20006100;//[256];;
|
||||
//unsigned int Update_Len;
|
||||
//unsigned int page;
|
||||
//unsigned char* Update_Ptr;
|
||||
//unsigned char Update_Data;
|
||||
|
||||
|
||||
unsigned char m_ucFlashBuf[FLASH_PAGE_SIZE]={0};
|
||||
|
||||
//unsigned char m_ucFlashBuf[FLASH_PAGE_SIZE];
|
||||
|
||||
extern u16 FlashDataRAM[];
|
||||
|
||||
//0XC2 0X13
|
||||
void FlashReadID(u8 *Data)@ "FLASHCODE"
|
||||
{
|
||||
u8 i;
|
||||
|
||||
Select_Flash();
|
||||
SPI_Flash_SendByte(0x90);
|
||||
SPI_Flash_SendByte(0x00);
|
||||
SPI_Flash_SendByte(0x00);
|
||||
SPI_Flash_SendByte(0x00);
|
||||
|
||||
for(i = 0; i < 2; i++)
|
||||
{
|
||||
Data[i] = SPI_Flash_ReadByte();
|
||||
}
|
||||
NotSelect_Flash();
|
||||
}
|
||||
|
||||
/*******************************************************************************
|
||||
* Function Name : SPI_FLASH_Init
|
||||
* Description : Initializes the peripherals used by the SPI FLASH driver.
|
||||
* Input : None
|
||||
* Output : None
|
||||
* Return : None
|
||||
*******************************************************************************/
|
||||
void SPI_Flash_Init(void)@ "FLASHCODE"
|
||||
{
|
||||
SPI_InitTypeDef SPI_InitStructure;
|
||||
GPIO_InitTypeDef GPIO_InitStructure;
|
||||
|
||||
/* Enable SPI1 GPIOA and GPIOB clocks */
|
||||
RCC_APB1PeriphClockCmd(RCC_APB1Periph_SPI2,ENABLE);
|
||||
|
||||
/* Configure SPI1 pins: NSS, SCK, MISO and MOSI */
|
||||
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_13 | GPIO_Pin_14| GPIO_Pin_15;
|
||||
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
|
||||
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;
|
||||
GPIO_Init(GPIOB, &GPIO_InitStructure);
|
||||
|
||||
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_12;
|
||||
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
|
||||
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;
|
||||
GPIO_Init(GPIOB, &GPIO_InitStructure);
|
||||
|
||||
/* Deselect the FLASH: Chip Select high */
|
||||
NotSelect_Flash();
|
||||
|
||||
/* SPI1 configuration */
|
||||
SPI_InitStructure.SPI_Direction = SPI_Direction_2Lines_FullDuplex;
|
||||
SPI_InitStructure.SPI_Mode = SPI_Mode_Master;
|
||||
SPI_InitStructure.SPI_DataSize = SPI_DataSize_8b;
|
||||
SPI_InitStructure.SPI_CPOL = SPI_CPOL_High;
|
||||
SPI_InitStructure.SPI_CPHA = SPI_CPHA_2Edge;
|
||||
SPI_InitStructure.SPI_NSS = SPI_NSS_Soft;
|
||||
SPI_InitStructure.SPI_BaudRatePrescaler = SPI_BaudRatePrescaler_4; //divied by 2, SPI clock is (32M/2)/2=8MHz
|
||||
//SPI_InitStructure.SPI_BaudRatePrescaler = SPI_BaudRatePrescaler_4; // 4m
|
||||
SPI_InitStructure.SPI_FirstBit = SPI_FirstBit_MSB;
|
||||
SPI_InitStructure.SPI_CRCPolynomial = 7;
|
||||
SPI_Init(SPI2, &SPI_InitStructure);
|
||||
|
||||
/* Enable SPI1 */
|
||||
SPI_Cmd(SPI2, ENABLE);
|
||||
|
||||
//flash_write_enable();
|
||||
}
|
||||
|
||||
/*******************************************************************************
|
||||
* Function Name : SPI_FLASH_ReadByte
|
||||
* Description : Reads a byte from the SPI Flash.
|
||||
* This function must be used only if the Start_Read_Sequence
|
||||
* function has been previously called.
|
||||
* Input : None
|
||||
* Output : None
|
||||
* Return : Byte Read from the SPI Flash.
|
||||
*******************************************************************************/
|
||||
//u8 SPI_Flash_ReadByte(void)@ "FLASHCODE"
|
||||
//{
|
||||
// return (SPI_Flash_SendByte(Dummy_Byte));
|
||||
//}
|
||||
unsigned char SPI_Flash_ReadByte(void)@ "FLASHCODE"
|
||||
{
|
||||
return (SPI_Flash_SendByte(Dummy_Byte));
|
||||
}
|
||||
|
||||
/*******************************************************************************
|
||||
* Function Name : SPI_FLASH_SendByte
|
||||
* Description : Sends a byte through the SPI interface and return the byte
|
||||
* received from the SPI bus.
|
||||
* Input : byte : byte to send.
|
||||
* Output : None
|
||||
* Return : The value of the received byte.
|
||||
*******************************************************************************/
|
||||
u8 SPI_Flash_SendByte(u8 byte)@ "FLASHCODE"
|
||||
{
|
||||
/* Loop while DR register in not emplty */
|
||||
while(SPI_GetFlagStatus(SPI2, SPI_FLAG_TXE) == RESET);
|
||||
|
||||
/* Send byte through the SPI1 peripheral */
|
||||
SPI_SendData(SPI2, byte);
|
||||
|
||||
/* Wait to receive a byte */
|
||||
while(SPI_GetFlagStatus(SPI2, SPI_FLAG_RXNE) == RESET);
|
||||
|
||||
/* Return the byte read from the SPI bus */
|
||||
return SPI_ReceiveData(SPI2);
|
||||
}
|
||||
|
||||
/*
|
||||
void FlashPageEarse(u16 page)@ "FLASHCODE"
|
||||
{
|
||||
FlashWaitBusy();
|
||||
Select_Flash();
|
||||
SPI_Flash_SendByte(PAGE_ERASE);
|
||||
SPI_Flash_SendByte((u8)(page >> 6));
|
||||
SPI_Flash_SendByte((u8)(page << 2));
|
||||
SPI_Flash_SendByte(Dummy_Byte);
|
||||
//|-23-|-22-|21|20|19|18|17|16|15|14|13|12|11|10|9|8|7|6|5|4|3|2|1|0|
|
||||
//|2个无关位|------------12位页地址-------------|----10个无关位-----|
|
||||
NotSelect_Flash();
|
||||
}
|
||||
*/
|
||||
|
||||
void Delay_100us_1(void)
|
||||
{
|
||||
unsigned int j;
|
||||
for(j=0; j<424; j++)
|
||||
{
|
||||
_NOP();
|
||||
_NOP();
|
||||
_NOP();
|
||||
_NOP();
|
||||
_NOP();
|
||||
_NOP();
|
||||
_NOP();
|
||||
_NOP();
|
||||
}
|
||||
}
|
||||
|
||||
void FlashPageRead(unsigned int wPage,unsigned char *Update_Ptr)@ "FLASHCODE"
|
||||
{
|
||||
unsigned short i=0;
|
||||
unsigned int uiAddr=0;
|
||||
|
||||
//256 8006E --> 4096 page
|
||||
|
||||
uiAddr = (unsigned int)(wPage*256);
|
||||
FlashWaitBusy();
|
||||
Select_Flash();
|
||||
SPI_Flash_SendByte(0x03);
|
||||
SPI_Flash_SendByte( (u8)((uiAddr>>16)&0xFF) );
|
||||
SPI_Flash_SendByte( (u8)((uiAddr>>8)&0xFF) );
|
||||
SPI_Flash_SendByte( (u8)((uiAddr)&0xFF) );
|
||||
|
||||
for (i = 0;i < 256; i++)
|
||||
{
|
||||
*Update_Ptr++=SPI_Flash_ReadByte();
|
||||
}
|
||||
NotSelect_Flash();
|
||||
}
|
||||
|
||||
void flash_write_enable(void)
|
||||
{
|
||||
unsigned char state_reg=0x00;
|
||||
|
||||
while((state_reg&0x02) == 0x00)
|
||||
{
|
||||
Select_Flash();
|
||||
SPI_Flash_SendByte(0x06);
|
||||
NotSelect_Flash();
|
||||
Delay_100us_1();
|
||||
|
||||
Select_Flash();
|
||||
SPI_Flash_SendByte(FLASH_STATUS);
|
||||
state_reg=SPI_Flash_ReadByte();
|
||||
NotSelect_Flash();
|
||||
|
||||
if( (state_reg&0x02) == 0x01 )
|
||||
{
|
||||
break;
|
||||
}
|
||||
|
||||
Delay_100us_1();
|
||||
}
|
||||
}
|
||||
|
||||
void FlashWaitBusy(void)@ "FLASHCODE"
|
||||
{
|
||||
unsigned char state_reg=0x00;
|
||||
|
||||
while( 1 )
|
||||
{
|
||||
Select_Flash();
|
||||
SPI_Flash_SendByte(0x05);
|
||||
state_reg=SPI_Flash_ReadByte();
|
||||
NotSelect_Flash();
|
||||
//ClearWatchdog();
|
||||
{
|
||||
//WDI_10;
|
||||
//IWDG_WriteAccessCmd(IWDG_WriteAccess_Enable);
|
||||
//IWDG_ReloadCounter();
|
||||
}
|
||||
if( (state_reg&0x01) == 0x00)
|
||||
{
|
||||
break;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
void UClearWatchdog(void)@ "FLASHCODE"
|
||||
{
|
||||
unsigned char k;
|
||||
|
||||
// P6DIR_bit.P6DIR_1 = 1;
|
||||
// P6OUT_bit.P6OUT_1 = 1;
|
||||
WDI_1;
|
||||
for (k=0;k<200;k++)//0
|
||||
{
|
||||
_NOP();
|
||||
}
|
||||
WDI_0;
|
||||
// P6OUT_bit.P6OUT_1 = 0;
|
||||
// WDTCTL = WDTPW + WDTSSEL + WDTCNTCL; //enable and clear watchdog, 2006-11-21
|
||||
IWDG_ReloadCounter();
|
||||
}
|
||||
|
||||
//read flash data within page
|
||||
void D_spiReadFlashPage(unsigned int iadr,unsigned short ilen,unsigned char *pdin_data)//@ "FLASHCODE"
|
||||
{
|
||||
unsigned int i,tn;
|
||||
tn=ilen+(iadr%FLASH_PAGE_SIZE);
|
||||
FlashPageRead(iadr/FLASH_PAGE_SIZE,&spi_buf[0]);
|
||||
for(i=(iadr%FLASH_PAGE_SIZE);i<tn;++i)
|
||||
{
|
||||
*pdin_data=spi_buf[i];
|
||||
pdin_data++;
|
||||
}
|
||||
}
|
||||
|
||||
/**************************************************************************
|
||||
read flash, not care iit's more than one page size or not, 2010-10-13
|
||||
***************************************************************************/
|
||||
void D_spiFlashRead(u32 iaddr,u16 length, u8 *pdin_data)//@ "FLASHCODE"
|
||||
{
|
||||
u16 i, page, tn, remain;
|
||||
|
||||
page=iaddr/FLASH_PAGE_SIZE;
|
||||
remain=iaddr%FLASH_PAGE_SIZE;
|
||||
if (remain!=0)
|
||||
{
|
||||
FlashPageRead(iaddr/FLASH_PAGE_SIZE,&spi_buf[0]);
|
||||
tn=remain+length;
|
||||
if (tn<FLASH_PAGE_SIZE)
|
||||
{
|
||||
for(i=remain;i<tn;++i)
|
||||
{
|
||||
*pdin_data=spi_buf[i];
|
||||
pdin_data++;
|
||||
}
|
||||
return; //finished read all data
|
||||
}
|
||||
else
|
||||
{
|
||||
for(i=remain;i<FLASH_PAGE_SIZE;++i)
|
||||
{
|
||||
*pdin_data=spi_buf[i];
|
||||
pdin_data++;
|
||||
}
|
||||
length = length-(FLASH_PAGE_SIZE-remain);
|
||||
iaddr=iaddr+(FLASH_PAGE_SIZE-remain);
|
||||
}
|
||||
}
|
||||
//keep reading the next page
|
||||
while (length>FLASH_PAGE_SIZE)
|
||||
{
|
||||
FlashPageRead(page,&spi_buf[0]);
|
||||
for(i=0;i<FLASH_PAGE_SIZE;++i)
|
||||
{
|
||||
*pdin_data++=spi_buf[i];
|
||||
}
|
||||
length-=FLASH_PAGE_SIZE;
|
||||
page++;
|
||||
}
|
||||
if(0 == length%FLASH_PAGE_SIZE)
|
||||
{
|
||||
FlashPageRead(page,&spi_buf[0]);
|
||||
for(i=0;i<FLASH_PAGE_SIZE;++i)
|
||||
{
|
||||
*pdin_data++=spi_buf[i];
|
||||
}
|
||||
}
|
||||
else
|
||||
{
|
||||
//read the remained data from the last page
|
||||
FlashPageRead(page,&spi_buf[0]);
|
||||
for(i=0;i<(length%FLASH_PAGE_SIZE);++i)
|
||||
{
|
||||
*pdin_data++=spi_buf[i];
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
/////////////////////////////////////////////////////////////////////////////////
|
||||
//void D_spiWriteIIC(unsigned int iadr, unsigned short nbyte, unsigned char* psrc_data)//@ "FLASHCODE"
|
||||
void D_spiWriteFlash(unsigned int iadr, unsigned short nbyte, unsigned char* psrc_data)//@ "FLASHCODE"
|
||||
{
|
||||
unsigned int i,tn;
|
||||
tn=nbyte+(iadr%FLASH_PAGE_SIZE);
|
||||
for(i=(iadr%FLASH_PAGE_SIZE);i<tn;++i)
|
||||
{
|
||||
spi_buf[i]=*psrc_data;
|
||||
psrc_data++;
|
||||
}
|
||||
FlashPageWrite(iadr/FLASH_PAGE_SIZE,spi_buf);
|
||||
}
|
||||
|
||||
/****************************************************************************************************
|
||||
Write flash, don't care length is more than one page or not
|
||||
****************************************************************************************************/
|
||||
void D_spiFlashWrite(u32 iadr, u16 length, u8 *psrc_data)//@ "FLASHCODE"
|
||||
{
|
||||
u16 i=0,page=0;
|
||||
|
||||
page=iadr/FLASH_PAGE_SIZE;
|
||||
while (length>FLASH_PAGE_SIZE)
|
||||
{
|
||||
for(i=0;i<FLASH_PAGE_SIZE;++i)
|
||||
{
|
||||
spi_buf[i]=*psrc_data++;
|
||||
}
|
||||
FlashPageWrite(page,spi_buf);
|
||||
length-=FLASH_PAGE_SIZE;
|
||||
page++;
|
||||
}
|
||||
|
||||
//read the last page of data from flash
|
||||
flash_page_read(page, spi_buf);
|
||||
|
||||
for(i=0;i<length;++i)
|
||||
{
|
||||
spi_buf[i]=*psrc_data++;
|
||||
}
|
||||
|
||||
FlashPageWrite(page,spi_buf);
|
||||
}
|
||||
|
||||
void FlashPageWrite(u16 wPage,u8 *Data)//@ "FLASHCODE" //写一整页，页范围0-4095
|
||||
{
|
||||
unsigned short i=0;
|
||||
unsigned int uiAddr=0;
|
||||
unsigned short wSector=0;
|
||||
unsigned short wStartAddr=0;
|
||||
|
||||
unsigned char* m_flash_sector=0;
|
||||
|
||||
m_flash_sector=(unsigned char*)FlashDataRAM;
|
||||
|
||||
wStartAddr = (wPage%16)*256;
|
||||
|
||||
wSector = (unsigned short)(wPage/16);
|
||||
uiAddr = wSector*4096;
|
||||
flash_fast_read( uiAddr, 4096 );
|
||||
flash_sector_erase(uiAddr);
|
||||
|
||||
for( i=0; i<256; i++ )
|
||||
{
|
||||
m_flash_sector[wStartAddr+i]=Data[i];
|
||||
}
|
||||
|
||||
flash_sector_write(wSector*4096, 4096);
|
||||
}
|
||||
|
||||
//256 8006E --> 4096 page
|
||||
void flash_page_write(u16 wPage,u8 *Data)
|
||||
{
|
||||
unsigned short i=0;
|
||||
unsigned int uiAddr=0;
|
||||
|
||||
uiAddr = (unsigned int)(wPage*256);
|
||||
|
||||
FlashWaitBusy();
|
||||
flash_write_enable();
|
||||
|
||||
Select_Flash();
|
||||
SPI_Flash_SendByte(0x02);
|
||||
SPI_Flash_SendByte( (u8)((uiAddr>>16)&0xFF) );
|
||||
SPI_Flash_SendByte( (u8)((uiAddr>>8)&0xFF) );
|
||||
SPI_Flash_SendByte( (u8)((uiAddr)&0xFF) );
|
||||
|
||||
for (i = 0;i < 256; i++)
|
||||
{
|
||||
SPI_Flash_SendByte(Data[i]);
|
||||
}
|
||||
NotSelect_Flash();
|
||||
}
|
||||
|
||||
//256 8006E --> 4096 page
|
||||
void flash_page_read(unsigned short wPage, unsigned char* pData)
|
||||
{
|
||||
unsigned short i=0;
|
||||
unsigned int uiAddr=0;
|
||||
|
||||
uiAddr = (unsigned int)(wPage*256);
|
||||
FlashWaitBusy();
|
||||
Select_Flash();
|
||||
SPI_Flash_SendByte(0x03);
|
||||
SPI_Flash_SendByte( (u8)((uiAddr>>16)&0xFF) );
|
||||
SPI_Flash_SendByte( (u8)((uiAddr>>8)&0xFF) );
|
||||
SPI_Flash_SendByte( (u8)((uiAddr)&0xFF) );
|
||||
|
||||
for (i = 0;i < 256; i++)
|
||||
{
|
||||
pData[i]=SPI_Flash_ReadByte();
|
||||
}
|
||||
NotSelect_Flash();
|
||||
}
|
||||
|
||||
void flash_sector_erase(unsigned int uiAddr)
|
||||
{
|
||||
FlashWaitBusy();
|
||||
flash_write_enable();
|
||||
|
||||
Select_Flash();
|
||||
SPI_Flash_SendByte(0x20);
|
||||
SPI_Flash_SendByte( (u8)((uiAddr>>16)&0xFF) );
|
||||
SPI_Flash_SendByte( (u8)((uiAddr>>8)&0xFF) );
|
||||
SPI_Flash_SendByte( (u8)((uiAddr)&0xFF) );
|
||||
NotSelect_Flash();
|
||||
|
||||
}
|
||||
|
||||
void flash_sector_write(unsigned int uiAddr, unsigned short wLen)
|
||||
{
|
||||
unsigned short i=0;
|
||||
unsigned short wPage=0;
|
||||
|
||||
unsigned char* m_flash_sector=0;
|
||||
|
||||
m_flash_sector=(unsigned char*)FlashDataRAM;
|
||||
|
||||
wPage = (unsigned short)(uiAddr/256);
|
||||
|
||||
for( i=0; i<16; i++ )
|
||||
{
|
||||
memcpy( &m_ucFlashBuf[0], &m_flash_sector[ 256*i ], 256 );
|
||||
flash_page_write( wPage, &m_ucFlashBuf[0] );
|
||||
wPage++;
|
||||
}
|
||||
|
||||
SPI_Flash_SendByte(0x04); //dis write
|
||||
}
|
||||
|
||||
void flash_fast_read( unsigned int uiAddr, unsigned short wLen )
|
||||
{
|
||||
unsigned short i=0;
|
||||
|
||||
unsigned char* m_flash_sector=0;
|
||||
|
||||
m_flash_sector=(unsigned char*)FlashDataRAM;
|
||||
|
||||
if(wLen>4096)
|
||||
{
|
||||
return;
|
||||
}
|
||||
|
||||
FlashWaitBusy();
|
||||
Select_Flash();
|
||||
SPI_Flash_SendByte(0x0B);
|
||||
SPI_Flash_SendByte( (u8)((uiAddr>>16)&0xFF) );
|
||||
SPI_Flash_SendByte( (u8)((uiAddr>>8)&0xFF) );
|
||||
SPI_Flash_SendByte( (u8)((uiAddr)&0xFF) );
|
||||
SPI_Flash_SendByte( 0x00 );
|
||||
|
||||
for (i = 0;i < wLen; i++)
|
||||
{
|
||||
m_flash_sector[i]=SPI_Flash_ReadByte();
|
||||
}
|
||||
NotSelect_Flash();
|
||||
}
|
||||
|
||||
void FlashWaidBusy(void)@ "FLASHCODE"
|
||||
{
|
||||
unsigned char state_reg=0x00;
|
||||
|
||||
while( 1 )
|
||||
{
|
||||
Select_Flash();
|
||||
SPI_Flash_SendByte(0x05);
|
||||
state_reg=SPI_Flash_ReadByte();
|
||||
NotSelect_Flash();
|
||||
UClearWatchdog();
|
||||
if( (state_reg&0x01) == 0x00)
|
||||
{
|
||||
break;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
void Flash_Page_Read(unsigned int wPage,unsigned char *Update_Ptr)@ "FLASHCODE"
|
||||
{
|
||||
unsigned short i=0;
|
||||
unsigned int uiAddr=0;
|
||||
|
||||
//256 8006E --> 4096 page
|
||||
|
||||
uiAddr = (unsigned int)(wPage*256);
|
||||
FlashWaidBusy();
|
||||
Select_Flash();
|
||||
SPI_Flash_SendByte(0x03);
|
||||
SPI_Flash_SendByte( (u8)((uiAddr>>16)&0xFF) );
|
||||
SPI_Flash_SendByte( (u8)((uiAddr>>8)&0xFF) );
|
||||
SPI_Flash_SendByte( (u8)((uiAddr)&0xFF) );
|
||||
|
||||
for (i = 0;i < 256; i++)
|
||||
{
|
||||
*Update_Ptr++=SPI_Flash_ReadByte();
|
||||
}
|
||||
NotSelect_Flash();
|
||||
}
|
||||
|
||||
|
||||
|
||||
/**
|
||||
* @brief Write block of data to the SPI FLASH.
|
||||
* @param WriteAddr: FLASH's internal address to write to.
|
||||
* @param pBuffer: pointer to the buffer containing the data to be written to the FLASH.
|
||||
* @param length: number of bytes to write to the FLASH.
|
||||
* @retval None.
|
||||
*/
|
||||
void hal_sFLASH_WriteData(u32 WriteAddr, u8 *pBuffer, u16 length)
|
||||
{
|
||||
u16 pageLength = 0;
|
||||
|
||||
while (length > 0)
|
||||
{
|
||||
if ((WriteAddr & sFLASH_PAGE_MASK) == ((WriteAddr + length) & sFLASH_PAGE_MASK))
|
||||
{
|
||||
pageLength = length;
|
||||
}
|
||||
else
|
||||
{
|
||||
pageLength = ((WriteAddr + sFLASH_PAGE_SIZE) & sFLASH_PAGE_MASK) - WriteAddr;
|
||||
}
|
||||
|
||||
FlashWaitBusy();
|
||||
flash_write_enable();
|
||||
|
||||
Select_Flash();
|
||||
|
||||
SPI_Flash_SendByte(0x02);
|
||||
SPI_Flash_SendByte((u8)((WriteAddr >> 16) & 0xFF));
|
||||
SPI_Flash_SendByte((u8)((WriteAddr >> 8) & 0xFF));
|
||||
SPI_Flash_SendByte((u8)((WriteAddr) & 0xFF));
|
||||
|
||||
for (u16 i = 0; i < pageLength; i++)
|
||||
{
|
||||
SPI_Flash_SendByte(pBuffer[i]);
|
||||
}
|
||||
NotSelect_Flash();
|
||||
|
||||
WriteAddr += pageLength;
|
||||
pBuffer += pageLength;
|
||||
length -= pageLength;
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* @brief Read block of data to the SPI FLASH.
|
||||
* @param ReadAddr: FLASH's internal address to read from.
|
||||
* @param pBuffer: pointer to the buffer containing the data to be read from the FLASH.
|
||||
* @param length: number of bytes to read from the FLASH.
|
||||
* @retval None.
|
||||
*/
|
||||
void hal_sFLASH_ReadData(u32 ReadAddr, u8 *pBuffer, u16 length)
|
||||
{
|
||||
FlashWaitBusy();
|
||||
flash_write_enable();
|
||||
|
||||
Select_Flash();
|
||||
|
||||
SPI_Flash_SendByte(0x03);
|
||||
SPI_Flash_SendByte((u8)((ReadAddr >> 16) & 0xFF));
|
||||
SPI_Flash_SendByte((u8)((ReadAddr >> 8) & 0xFF));
|
||||
SPI_Flash_SendByte((u8)((ReadAddr) & 0xFF));
|
||||
|
||||
for (u16 i = 0; i < length; i++)
|
||||
{
|
||||
pBuffer[i] = SPI_Flash_SendByte(Dummy_Byte);
|
||||
}
|
||||
NotSelect_Flash();
|
||||
}
|
||||
|
||||
Reference in New Issue
Block a user