diff options
Diffstat (limited to 'S100App/Src/Ext_Flash.c')
| -rw-r--r-- | S100App/Src/Ext_Flash.c | 198 |
1 files changed, 0 insertions, 198 deletions
diff --git a/S100App/Src/Ext_Flash.c b/S100App/Src/Ext_Flash.c deleted file mode 100644 index 15016241..00000000 --- a/S100App/Src/Ext_Flash.c +++ /dev/null @@ -1,198 +0,0 @@ -/********************* (C) COPYRIGHT 2015 e-Design Co.,Ltd. ********************
-File Name : EXT_Flash.c
-Version : S100 APP Ver 2.11
-Description:
-Author : bure
-Data:
-History:
-*******************************************************************************/
-
-#include <string.h>
-#include <stdio.h>
-#include "Ext_Flash.h"
-#include "BIOS.h"
-
-
-#define OK 0 // �������
-#define SEC_ERR 1 // ���������
-#define TMAX 100000 // ��ʱ����
-
-u32 Mass_Memory_Size;
-u32 Mass_Block_Size;
-u32 Mass_Block_Count;
-u32 Tout;
-
-
-u8 flash_mode;
-
-void ExtFLASH_SectorErase(u32 SectorAddr);
-
-/*******************************************************************************
- SPI_FLASH_SectorErase : Sector Erases the specified FLASH Page.(4k/sector)
-*******************************************************************************/
-void ExtFLASH_SectorErase(u32 SectorAddr)
-{
- ExtFlash_WriteEnable();
- ExtFlash_CS_LOW();
- ExtFlash_SendByte(SE);
- ExtFlash_SendByte((SectorAddr & 0xFF0000) >> 16); //Send high address byte
- ExtFlash_SendByte((SectorAddr & 0xFF00) >> 8); //Send medium address byte
- ExtFlash_SendByte(SectorAddr & 0xFF); //Send low address byte
- ExtFlash_CS_HIGH();
- ExtFlash_WaitForWriteEnd(); // Wait the end of Flash writing
-}
-
-
-void ExtFlash_PageWR(u8* pBuffer, u32 WriteAddr)
-{
- u32 addr,i,j;
- u8* ptr;
- u8 page=0,flag=0,write_mode;
- u8 buffer[256];
-
- flag=0;
- if(flash_mode==FLASH_8M) {
- addr=WriteAddr & 0xFFF000;
- page=16;
- } else {
- page=1;
- addr=WriteAddr & 0xFFFF00;
- }
- while(page>0) {
- ExtFlash_PageRD((u8*)&buffer,addr, 256);
- for(j=0; j<255; j++) {
- if(buffer[j++]!=0xff) {
- flag=1;
- break;
- }
- }
- addr+=256;
- page--;
- }
- if(flash_mode==FLASH_8M) {
- page=16;
- addr=WriteAddr & 0xFFF000;
- if(flag==1)ExtFLASH_SectorErase(addr);
- write_mode=PP;
- } else {
- page=1;
- addr=WriteAddr & 0xFFFF00;
- if(flag==1)write_mode=PW;
- else write_mode=PP;
- }
- ptr=pBuffer;
- for(i=0; i<page; i++) {
- ExtFlash_PageProg(ptr, addr,write_mode);
- addr+=256;
- ptr+=256;
- }
-}
-
-/*******************************************************************************
- дFLASHҳ(256 Bytes)�� Mode=0: ��0��1���ݸ�д Mode=1: ������д
-*******************************************************************************/
-void ExtFlash_PageProg(u8* pBuffer, u32 WriteAddr,u8 CMD)
-{
- u16 Lenght = 256;
-
- ExtFlash_CS_HIGH();
- ExtFlash_WaitForWriteEnd();
- ExtFlash_WriteEnable();
- ExtFlash_CS_LOW();
- ExtFlash_SendByte(CMD);
- ExtFlash_SendByte((WriteAddr & 0xFF0000) >> 16);
- ExtFlash_SendByte((WriteAddr & 0xFF00) >> 8);
- ExtFlash_SendByte(WriteAddr & 0xFF);
- while(Lenght--) { // while there is data to be written on the FLASH
- ExtFlash_SendByte((*pBuffer));
- pBuffer++;
- }
- ExtFlash_CS_HIGH();
- ExtFlash_WaitForWriteEnd();
-}
-
-/*******************************************************************************
- SPI_FLASH_BufferRead
-*******************************************************************************/
-void ExtFlash_PageRD(u8* pBuffer, u32 ReadAddr, u16 Lenght)
-{
- ExtFlash_CS_HIGH();
- ExtFlash_WaitForWriteEnd();
- ExtFlash_CS_LOW();
- ExtFlash_SendByte(READ);
- ExtFlash_SendByte((ReadAddr & 0xFF0000) >> 16);
- ExtFlash_SendByte((ReadAddr& 0xFF00) >> 8);
- ExtFlash_SendByte(ReadAddr & 0xFF);
-
- while(Lenght--) { // while there is data to be read
- *pBuffer = (ExtFlash_SendByte(Dummy_Byte));
- pBuffer++;
- }
- ExtFlash_CS_HIGH();
-}
-/*******************************************************************************
- SPI_FLASH_ReadByte
-*******************************************************************************/
-u8 ExtFlash_ReadByte(void)
-{
- return (ExtFlash_SendByte(Dummy_Byte));
-}
-
-/*******************************************************************************
- SPI_FLASH_SendByte
-*******************************************************************************/
-u8 ExtFlash_SendByte(u8 byte)
-{
- Tout = 0;
- while(SPI_I2S_GetFlagStatus(SPI3, SPI_I2S_FLAG_TXE) == RESET) {
- if(Tout++ > TMAX) return 255;
- }
- SPI_I2S_SendData(SPI3, byte);
- Tout = 0;
- while(SPI_I2S_GetFlagStatus(SPI3, SPI_I2S_FLAG_RXNE) == RESET) {
- if(Tout++ > TMAX) return 255;
- }
- return SPI_I2S_ReceiveData(SPI3);
-}
-/*******************************************************************************
- SPI_FLASH_WriteEnable
-*******************************************************************************/
-void ExtFlash_WriteEnable(void)
-{
- ExtFlash_CS_LOW();
- ExtFlash_SendByte(WREN);
- ExtFlash_CS_HIGH();
-}
-/*******************************************************************************
- SPI_FLASH_WaitForWriteEnd
-*******************************************************************************/
-void ExtFlash_WaitForWriteEnd(void)
-{
- u8 FLASH_Status = 0;
-
- ExtFlash_CS_LOW();
- ExtFlash_SendByte(RDSR);
- Tout = 0;
- do {
- FLASH_Status = ExtFlash_SendByte(Dummy_Byte);
- if(Tout++ > TMAX) return;
- } while((FLASH_Status & WIP_Flag) == SET); // Write in progress
- ExtFlash_CS_HIGH();
-}
-/*******************************************************************************
- MAL_GetStatus
-*******************************************************************************/
-void MAL_GetStatus (void)
-{
- if(flash_mode==FLASH_8M) {
- Mass_Block_Count = 2048; //FLASH_SIZE/FLASH_PAGE_SIZE;
- Mass_Block_Size = 512*8; //FLASH_PAGE_SIZE; 4096
- Mass_Memory_Size = 512*4096*4 ; //FLASH_SIZE; 0x800000;
- } else {
- Mass_Block_Count = 4096; //FLASH_SIZE/FLASH_PAGE_SIZE; 4096
- Mass_Block_Size = 512; //FLASH_PAGE_SIZE;
- Mass_Memory_Size = 512*4096 ; //FLASH_SIZE; 0x200000;
- }
-}
-
-/********************************* END OF FILE ******************************/
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