河北水利局项目
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369
shuangjia/hal_GDflash.c
Normal file
369
shuangjia/hal_GDflash.c
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#include "hal_gdflash.h"
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#include "stm32f10x.h"
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#include "FRAM.h"
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/*****************************************************************************
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Prototype : hal_sRF_SPI_Config
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Description : none
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Input : void
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Output : None
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Return Value :
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Date : 2014/3/15
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Author : Barry
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*****************************************************************************/
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void GDflash_init(void)
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{
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spiFlash_FRAMFlash_init();
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}
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/*****************************************************************************
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Prototype : spiReadWriteByte
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Description : spi basic function
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Input : u8 data
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Output : None
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Return Value :
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Date : 2014/3/15
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Author : Barry
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*****************************************************************************/
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u8 GDflash_ReadWriteByte(u8 data)
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{
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return FRAMReadWriteByte(data);
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}
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void GDflash_write_enable(bool enable)
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{
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DGFLASH_CS_LOW();
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if (enable)
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{
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GDflash_ReadWriteByte(GDFLASH_WRITE_ENABLE);
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}
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else
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{
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GDflash_ReadWriteByte(GDFLASH_WRITE_DISABLE);
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}
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DGFLASH_CS_HIGH();
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}
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u8 GDflash_read_status_reg(void)
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{
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u8 status_value;
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DGFLASH_CS_LOW();
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GDflash_ReadWriteByte(GDFLASH_READ_STATUS_REG);
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status_value = GDflash_ReadWriteByte(DGFLASH_DUMMY_BYTE);
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DGFLASH_CS_HIGH();
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return status_value;
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}
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void GDflash_write_status_reg(u8 value)
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{
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DGFLASH_CS_LOW();
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GDflash_ReadWriteByte(GDFLASH_WRITE_STATUS_REG);
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GDflash_ReadWriteByte(value);
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DGFLASH_CS_HIGH();
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}
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void GDflash_read_datas(u32 startAddr, u8 *buf, u32 length, bool fastRead)
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{
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while ((GDflash_read_status_reg() & 0x01) == 1 );
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DGFLASH_CS_LOW();
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if (fastRead)
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{
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GDflash_ReadWriteByte(GDFLASH_FAST_READ);
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}
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else
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{
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GDflash_ReadWriteByte(GDFLASH_READ_DATA);
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}
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GDflash_ReadWriteByte( (u8)((startAddr>> 16) &0xFF));
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GDflash_ReadWriteByte( (u8)((startAddr>> 8) &0xFF));
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GDflash_ReadWriteByte( (u8)(startAddr &0xFF));
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if (fastRead)
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{
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GDflash_ReadWriteByte(DGFLASH_DUMMY_BYTE);
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}
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for (u32 i = 0; i < length; i++)
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{
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buf[i] = GDflash_ReadWriteByte(DGFLASH_DUMMY_BYTE);
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}
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DGFLASH_CS_HIGH();
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}
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/*****************************************************************************
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Prototype : spiReadWriteByte
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Description : spi basic function
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Input : u8 data
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Output : None
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Return Value :
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Date : 2014/3/15
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Author : Barry
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当写入地址不是每页的开头时，若此页的剩余空间小于要写入的内容大小，那么数据将会重当前
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地址开始填充完此页后，从此页的开始处，再继续填充，直到完成
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写入内容不能超出每页的大小256字节，超出的部分自能保证最后256字节的内容被写入flash
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*****************************************************************************/
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void GDflash_page_program(u32 startAddr, u8 *buf, u16 length, bool fastWrite)
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{
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while ((GDflash_read_status_reg() & 0x01) == 1 );
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GDflash_write_enable(TRUE);
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DGFLASH_CS_LOW();
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if (fastWrite)
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{
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GDflash_ReadWriteByte(GDFLASH_PAGE_PROGRAM_F2);
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}
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else
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{
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GDflash_ReadWriteByte(GDFLASH_PAGE_PROGRAM_02);
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}
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GDflash_ReadWriteByte( (u8)((startAddr>> 16) &0xFF));
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GDflash_ReadWriteByte( (u8)((startAddr>> 8) &0xFF));
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GDflash_ReadWriteByte( (u8)(startAddr &0xFF));
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for (u16 i = 0; i < length; i++)
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{
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GDflash_ReadWriteByte( buf[i]);
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}
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DGFLASH_CS_HIGH();
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}
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/*
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Any address inside the sector is a valid
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address for the Sector Erase (SE) command
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*/
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void GDflash_erase(u32 startAddr, GDFLASH_ERASE_TYPE erase_type)
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{
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while ((GDflash_read_status_reg() & 0x01) == 1 );
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GDflash_write_enable(TRUE);
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DGFLASH_CS_LOW();
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switch (erase_type)
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{
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case SECTOR_ERASE:
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GDflash_ReadWriteByte(GDFLASH_SECTOR_ERASE);
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break;
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case BLOCK_ERASE_32K:
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GDflash_ReadWriteByte(GDFLASH_BLOCK_ERASE_32);
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break;
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case BLOCK_ERASE_64K:
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GDflash_ReadWriteByte(GDFLASH_BLOCK_ERASE_64);
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break;
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case CHIP_ERASE:
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GDflash_ReadWriteByte(GDFLASH_CHIP_ERASE);
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break;
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default:
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break;
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}
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if (erase_type != CHIP_ERASE)
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{
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GDflash_ReadWriteByte( (u8)((startAddr>> 16) &0xFF));
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GDflash_ReadWriteByte( (u8)((startAddr>> 8) &0xFF));
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GDflash_ReadWriteByte( (u8)(startAddr &0xFF));
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}
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DGFLASH_CS_HIGH();
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}
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/*****************************************************************************
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*
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*
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*
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*
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*
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*
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当写入地址不是每页的开头时，若此页的剩余空间小于要写入的内容大小，那么数据将会重当前
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地址开始填充完此页后，从此页的开始处，再继续填充，直到完成
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写入内容不能超出每页的大小256字节，超出的部分自能保证最后256字节的内容被写入flash
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这种写入方法,只管写，不管擦除，在第一个升级包的时候就全片擦除
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*****************************************************************************/
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#define GDFLASH_PAGE_SIZE 256
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void GDflash_write(u32 startAddr, u8 *buf, u32 length)
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{
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u32 current_startAddr = startAddr;
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u8 first_page_byte = GDFLASH_PAGE_SIZE - (startAddr % GDFLASH_PAGE_SIZE);
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u8 * current_data_ptr = buf;
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u32 left_length = length;
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u16 integrated_Pages;
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u16 end_page_byte;
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if (length > first_page_byte)
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{
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GDflash_page_program( current_startAddr, current_data_ptr, first_page_byte, FALSE);
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current_startAddr = current_startAddr + first_page_byte;
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current_data_ptr += first_page_byte;
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left_length = length - first_page_byte;
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integrated_Pages = left_length / GDFLASH_PAGE_SIZE;
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end_page_byte = left_length % GDFLASH_PAGE_SIZE;
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for (u16 i = 0; i < integrated_Pages; i++)
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{
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GDflash_page_program( current_startAddr, current_data_ptr, GDFLASH_PAGE_SIZE, FALSE);
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current_startAddr += GDFLASH_PAGE_SIZE;
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current_data_ptr += GDFLASH_PAGE_SIZE;
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}
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if (end_page_byte > 0)
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{
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GDflash_page_program( current_startAddr, current_data_ptr, end_page_byte, FALSE);
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}
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}
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else
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{
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GDflash_page_program( current_startAddr, current_data_ptr, length, FALSE);
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}
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}
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void GDflash_read_next(u32 startAddr, u8 *buf, u32 length)
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{
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u32 current_startAddr = startAddr;
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u8 first_page_byte = GDFLASH_PAGE_SIZE - (startAddr % GDFLASH_PAGE_SIZE);
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u8 * current_data_ptr = buf;
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u32 left_length = length;
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u16 integrated_Pages;
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u16 end_page_byte;
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if (length > first_page_byte)
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{
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GDflash_read_datas( current_startAddr, current_data_ptr, first_page_byte, FALSE);
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current_startAddr = current_startAddr + first_page_byte;
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current_data_ptr += first_page_byte;
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left_length = length - first_page_byte;
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integrated_Pages = left_length / GDFLASH_PAGE_SIZE;
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end_page_byte = left_length % GDFLASH_PAGE_SIZE;
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for (u16 i = 0; i < integrated_Pages; i++)
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{
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GDflash_read_datas( current_startAddr, current_data_ptr, GDFLASH_PAGE_SIZE, FALSE);
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current_startAddr += GDFLASH_PAGE_SIZE;
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current_data_ptr += GDFLASH_PAGE_SIZE;
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}
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if (end_page_byte > 0)
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{
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GDflash_read_datas( current_startAddr, current_data_ptr, end_page_byte, FALSE);
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}
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}
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else
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{
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GDflash_read_datas( current_startAddr, current_data_ptr, length, FALSE);
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}
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}
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void GDfalsh_read_identification(u8 *buf)
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{
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DGFLASH_CS_LOW();
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GDflash_ReadWriteByte(0x9F);
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buf[0] = GDflash_ReadWriteByte(0xAA);
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buf[1] = GDflash_ReadWriteByte(0xAA);
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buf[2] = GDflash_ReadWriteByte(0xAA);
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DGFLASH_CS_HIGH();
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}
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void GDflash_128KByte_erase(void)
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{
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GDflash_erase(0, BLOCK_ERASE_64K);
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GDflash_erase(65536, BLOCK_ERASE_64K);
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}
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void GDflash_read(u32 startAddr, u8 *buf, u32 length)
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{
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GDflash_read_datas(startAddr, buf, length, FALSE);
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}
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void GDflash_test(void)
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{
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u8 buf[] = "hello,world!";
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u8 buf1[20];
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u8 buf2[20];
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GDflash_init();
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GDflash_erase(0,BLOCK_ERASE_64K);
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GDflash_read_datas(0 , buf1, sizeof(buf), FALSE);
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GDflash_page_program(0 , buf, sizeof(buf),TRUE);
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GDflash_read_datas(0 , buf2, sizeof(buf), FALSE);
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}
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void flash_onepage_write(u32 addr,u8 * val,u16 len)
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{
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GDflash_erase(addr,SECTOR_ERASE);
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GDflash_page_program(addr , val, len,TRUE);
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}
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void flash_onepage_read(u32 addr,u8 * val,u16 len)
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{
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GDflash_read_datas(addr , val, len, FALSE);
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}
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void flash_doc_write(u32 addr,u8 * val,u16 len)
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{
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GDflash_erase(addr,SECTOR_ERASE);
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GDflash_erase(addr+4096,SECTOR_ERASE);
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GDflash_erase(addr+4096*2,SECTOR_ERASE);
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GDflash_erase(addr+4096*3,SECTOR_ERASE);
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GDflash_erase(addr+4096*4,SECTOR_ERASE);
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// GDflash_page_program(addr , val, len,TRUE);
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GDflash_write(addr , val, len);
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}
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void flash_doc_read(u32 addr,u8 * val,u16 len)
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{
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GDflash_read_next(addr , val, len);
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}
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void update_clear()
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{
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for(u16 i = 26;i<200;i++)
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{
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GDflash_erase(i*4096 ,SECTOR_ERASE);
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}
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}
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