cc8783e9f8
修改事项： 1、新增TFTP IAP升级功能，只是代码移植完毕，没有测试使用 2、代码空间编译优化，零等待区域空间已满，而应用层代码已全部挪移到非零等待区域中，但还是会增加零等待区的空间占用。 待优化
521 lines
18 KiB
C
521 lines
18 KiB
C
/*
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* spi_flash.c
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*
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* Created on: May 20, 2025
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* Author: cc
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*/
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#include "spi_flash.h"
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#include "debug.h"
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uint8_t Temp_Flash_Buff[4100]; //FLash 写入缓存BUFF
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__attribute__((section(".non_0_wait"))) void SPI_FLASH_Init(void)
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{
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/* SPI Flash 与 SPI SRAM 共用SPI引脚
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* 因此 SPI Flash 无需引脚初始化
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* */
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Dbg_Println(DBG_BIT_SYS_STATUS_bit,"SPI Flash ID:0x%04x\r\n",Flash_ReadID());
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}
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/*******************************************************************************
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* Function Name : Flash_ReadSR
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* Description : P25Q40H Flash读取状态寄存器
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* Input : None
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* Return : P25Q40H Flash状态寄存器值
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BIT7 6 5 4 3 2 1 0
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SPR0 BP4 BP3 BP2 BP1 BP0 WEL WIP
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SPR:默认0,状态寄存器保护位,配合WP使用
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BP4,BP3,BP2,BP1,BP0:FLASH区域写保护设置
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WEL:写使能锁定
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BUSY:忙标记位(1,忙;0,空闲)
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默认:0x00
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*******************************************************************************/
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__attribute__((section(".non_0_wait"))) uint8_t Flash_ReadSR(void)
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{
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uint8_t byte = 0;
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Flash_CS_L;
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SPI0_MasterSendByte(P24Q40H_ReadStatusReg); //发送读取状态寄存器命令
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byte = SPI0_MasterRecvByte();
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Flash_CS_H;
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return byte;
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}
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/*******************************************************************************
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* Function Name : Flash_WriteSR
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* Description : P25Q40H Flash写状态寄存器
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* Input :
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sr_val:写入状态寄存器的值
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BIT7 6 5 4 3 2 1 0
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SPR0 BP4 BP3 BP2 BP1 BP0 WEL WIP
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只有SPR0,BP3,BP2,BP1,BP0(bit 7,5,4,3,2)可以写!!!
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* Return : None
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*******************************************************************************/
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__attribute__((section(".non_0_wait"))) void Flash_WriteSR(uint8_t sr_val)
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{
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Flash_CS_L;
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SPI0_MasterSendByte(P24Q40H_WriteStatusReg);
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SPI0_MasterSendByte(sr_val);
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Flash_CS_H;
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}
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/*******************************************************************************
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* Function Name : Flash_Write_Enable
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* Description : P25Q40H 写使能 -- 将WEL置位
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* Input : None
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* Return : None
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*******************************************************************************/
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__attribute__((section(".non_0_wait"))) void Flash_Write_Enable(void)
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{
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Flash_CS_L;
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SPI0_MasterSendByte(P24Q40H_WriteEnable);
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Flash_CS_H;
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}
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/*******************************************************************************
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* Function Name : Flash_Write_Disable
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* Description : P25Q40H 写禁止 -- 将WEL清零
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* Input : None
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* Return : None
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*******************************************************************************/
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__attribute__((section(".non_0_wait"))) void Flash_Write_Disable(void)
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{
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Flash_CS_L;
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SPI0_MasterSendByte(P24Q40H_WriteDisable);
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Flash_CS_H;
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}
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/*******************************************************************************
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* Function Name : Flash_ReadID
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* Description : P25Q40H Flash 读取芯片ID
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* Input : None
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* Return : 返回值如下：
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0x8512:表示芯片型号为P25Q40H
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0x8511:表示芯片型号为P25Q20H
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0x8510:表示芯片型号为P25Q10H
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0x8509:表示芯片型号为P25Q05H
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*******************************************************************************/
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__attribute__((section(".non_0_wait"))) uint16_t Flash_ReadID(void)
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{
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uint16_t temp=0;
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Flash_CS_L;
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SPI0_MasterSendByte(P24Q40H_ReadManufactureID);
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SPI0_MasterRecvByte();
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SPI0_MasterRecvByte();
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SPI0_MasterRecvByte();
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temp |= SPI0_MasterRecvByte()<<8;
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temp |= SPI0_MasterRecvByte();
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Flash_CS_H;
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return temp;
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}
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/*******************************************************************************
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* Function Name : Flash_Wait_Busy
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* Description : 等待空闲
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* Input : None
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* Return : 1：等待超时，处于繁忙状态
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0：空闲状态
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*******************************************************************************/
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__attribute__((section(".non_0_wait"))) uint8_t Flash_Wait_Busy(void)
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{
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uint8_t temp=0;
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uint16_t i=0;
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temp = Flash_ReadSR();
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while((temp&0x01)==0x01)
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{
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FEED_DOG(); //喂狗
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Delay_Us(100);
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temp = Flash_ReadSR();
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i++;
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if(i>3000) return 1;
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};
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return 0;
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}
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/*******************************************************************************
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* Function Name : Flash_PowerDown
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* Description : Flash 进入掉电模式
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* Input : None
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* Return : None
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*******************************************************************************/
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__attribute__((section(".non_0_wait"))) void Flash_PowerDown(void)
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{
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Flash_CS_L;
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SPI0_MasterSendByte(P24Q40H_PowerDown);
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Delay_Us(3);
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Flash_CS_H;
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}
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/*******************************************************************************
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* Function Name : Flash_PowerDown
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* Description : Flash 唤醒掉电模式
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* Input : None
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* Return : None
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*******************************************************************************/
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__attribute__((section(".non_0_wait"))) void Flash_Wakeup(void)
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{
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Flash_CS_L;
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SPI0_MasterSendByte(P24Q40H_ReleasePowerDown);
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Delay_Us(3);
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Flash_CS_H;
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}
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/*******************************************************************************
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* Function Name : Flash_Erase_Chip
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* Description : 擦除整个芯片
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* Input : None
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* Return : None
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*******************************************************************************/
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__attribute__((section(".non_0_wait"))) void Flash_Erase_Chip(void)
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{
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Flash_Write_Enable();
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Flash_Wait_Busy();
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Flash_CS_L;
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SPI0_MasterSendByte(P24Q40H_ChipErase);
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Flash_CS_H;
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Flash_Wait_Busy();
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}
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/*******************************************************************************
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* Function Name : Flash_Erase_Block
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* Description : 擦除块
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* Input : BLK_ID：块号(0~31) 2M
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* Return : None
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*******************************************************************************/
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__attribute__((section(".non_0_wait"))) void Flash_Erase_Block(uint32_t BLK_ID)
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{
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uint8_t flash_buff[5];
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BLK_ID*=0x10000; //64K
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flash_buff[0] = P24Q40H_BlockErase;
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flash_buff[1] = (uint8_t)((BLK_ID >> 16) & 0xFF);
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flash_buff[2] = (uint8_t)((BLK_ID >> 8) & 0xFF);
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flash_buff[3] = (uint8_t)((BLK_ID) & 0xFF);
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flash_buff[4] = 0x00;
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Flash_Write_Enable();
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Flash_Wait_Busy();
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Flash_CS_L;
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SPI0_DMATrans(flash_buff,0x04);
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Flash_CS_H;
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Flash_Wait_Busy();
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}
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/*******************************************************************************
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* Function Name : Flash_Erase_Sector
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* Description : 擦除扇区
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* Input : DST_Addr：扇区号(0~511) 2M
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* Return : None
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*******************************************************************************/
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__attribute__((section(".non_0_wait"))) void Flash_Erase_Sector(uint32_t DST_ID)
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{
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uint8_t flash_buff[5];
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DST_ID*=4096;
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flash_buff[0] = P24Q40H_SectorErase;
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flash_buff[1] = (uint8_t)((DST_ID >> 16) & 0xFF);
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flash_buff[2] = (uint8_t)((DST_ID >> 8) & 0xFF);
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flash_buff[3] = (uint8_t)((DST_ID) & 0xFF);
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flash_buff[4] = 0x00;
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Flash_Write_Enable();
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Flash_Wait_Busy();
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Flash_CS_L;
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SPI0_DMATrans(flash_buff,0x04);
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Flash_CS_H;
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Flash_Wait_Busy();
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}
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/*******************************************************************************
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* Function Name : Flash_Erase_Page
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* Description : 擦除页区
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* Input : Page_ID：页号(0~8191)
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* Return : None
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*******************************************************************************/
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__attribute__((section(".non_0_wait"))) void Flash_Erase_Page(uint32_t Page_ID)
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{
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uint8_t flash_buff[5];
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Page_ID*=256;
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flash_buff[0] = P24Q40H_PageErase;
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flash_buff[1] = (uint8_t)((Page_ID >> 16) & 0xFF);
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flash_buff[2] = (uint8_t)((Page_ID >> 8) & 0xFF);
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flash_buff[3] = (uint8_t)((Page_ID) & 0xFF);
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flash_buff[4] = 0x00;
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Flash_Write_Enable();
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Flash_Wait_Busy();
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Flash_CS_L;
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SPI0_DMATrans(flash_buff,0x04);
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Flash_CS_H;
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Flash_Wait_Busy();
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}
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/*******************************************************************************
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* Function Name : Flash_Erase_Page
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* Description : 擦除页区
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* Input : Page_addr:地址
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* Return : None
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*******************************************************************************/
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__attribute__((section(".non_0_wait"))) void Flash_Erase_Pageaddr(uint32_t Page_addr)
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{
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uint8_t flash_buff[5];
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flash_buff[0] = P24Q40H_PageErase;
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flash_buff[1] = (uint8_t)((Page_addr >> 16) & 0xFF);
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flash_buff[2] = (uint8_t)((Page_addr >> 8) & 0xFF);
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flash_buff[3] = (uint8_t)((Page_addr) & 0xFF);
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flash_buff[4] = 0x00;
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Flash_Write_Enable();
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Flash_Wait_Busy();
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Flash_CS_L;
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SPI0_DMATrans(flash_buff,0x04);
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Flash_CS_H;
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Flash_Wait_Busy();
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}
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/*******************************************************************************
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* Function Name : Flash_Read
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* Description : P25Q40H Flash 指定地址开始读取指定长度的数据
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* Input :
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pBuffer：数据存储区
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NumByteToRead：要读取的字节数(最大65535)
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ReadAddr：读取起始地址(24bit)
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* Return : None
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*******************************************************************************/
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__attribute__((section(".non_0_wait"))) void Flash_Read(uint8_t* pBuffer,uint16_t NumByteToRead,uint32_t ReadAddr)
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{
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uint8_t flash_buff[5];
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flash_buff[0] = P24Q40H_ReadData;
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flash_buff[1] = (uint8_t)((ReadAddr >> 16) & 0xFF);
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flash_buff[2] = (uint8_t)((ReadAddr >> 8) & 0xFF);
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flash_buff[3] = (uint8_t)((ReadAddr) & 0xFF);
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flash_buff[4] = 0x00;
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Flash_CS_L;
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SPI0_DMATrans(flash_buff,0x04);
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SPI0_DMARecv(pBuffer,NumByteToRead);
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Flash_CS_H;
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}
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/*******************************************************************************
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* Function Name : Flash_Write_Page
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* Description : P25Q40H Flash 指定地址开始写指定长度的数据
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* Input :
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pBuffer：数据存储区
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NumByteToRead：要写的字节数(最大256),该数不应该超过该页的剩余字节数!!!
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ReadAddr：读取起始地址(24bit)
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* Return : None
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*******************************************************************************/
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__attribute__((section(".non_0_wait"))) void Flash_Write_Page(uint8_t* pBuffer,uint16_t NumByteToWrite,uint32_t writeAddr)
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{
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uint8_t flash_buff[5];
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flash_buff[0] = P24Q40H_PageProgram;
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flash_buff[1] = (uint8_t)((writeAddr >> 16) & 0xFF);
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flash_buff[2] = (uint8_t)((writeAddr >> 8) & 0xFF);
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flash_buff[3] = (uint8_t)((writeAddr) & 0xFF);
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flash_buff[4] = 0x00;
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Flash_Write_Enable();
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Flash_CS_L;
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SPI0_DMATrans(flash_buff,0x04);
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SPI0_DMATrans(pBuffer,NumByteToWrite);
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Flash_CS_H;
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Flash_Wait_Busy();
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}
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/*******************************************************************************
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* Function Name : Flash_Write_NoCheck
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* Description : 无检验写P25Q40H FLASH
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注意：必须确保所写的地址范围内的数据全部为0XFF,否则在非0XFF处写入的数据将失败!
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具有自动换页功能
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在指定地址开始写入指定长度的数据,但是要确保地址不越界!
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* Input :
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pBuffer：数据存储区
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NumByteToRead：要写的字节数(最大65535)
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ReadAddr：读取起始地址(24bit)
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* Return : None
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*******************************************************************************/
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__attribute__((section(".non_0_wait"))) void Flash_Write_NoCheck(uint8_t* pBuffer,uint16_t NumByteToWrite,uint32_t writeAddr)
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{
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uint16_t pageremain;
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pageremain=256-writeAddr%256; //单页剩余的字节数
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if(NumByteToWrite<=pageremain) pageremain=NumByteToWrite;//不大于256个字节
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while(1)
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{
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FEED_DOG(); //喂狗
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Flash_Write_Page(pBuffer,pageremain,writeAddr);
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if(pageremain == NumByteToWrite) break; //写入完成
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else {
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pBuffer+=pageremain;
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writeAddr+=pageremain;
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NumByteToWrite-=pageremain;
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if(NumByteToWrite>256) pageremain=256;
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else pageremain=NumByteToWrite;
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}
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};
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}
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/*******************************************************************************
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* Function Name : Flash_Write
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* Description : 无检验写P25Q40H FLASH
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注意：必须确保所写的地址范围内的数据全部为0XFF,否则在非0XFF处写入的数据将失败!
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具有自动换页功能
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在指定地址开始写入指定长度的数据,但是要确保地址不越界!
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* Input :
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pBuffer：数据存储区
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NumByteToRead：要写的字节数(最大65535)
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ReadAddr：读取起始地址(24bit)
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* Return : None
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*******************************************************************************/
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__attribute__((section(".non_0_wait"))) void Flash_Write(uint8_t* pBuffer,uint16_t NumByteToWrite,uint32_t WriteAddr)
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{
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uint32_t secpos;
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uint16_t secoff,secremain,i;
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uint8_t* Write_Buff;
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if(NumByteToWrite <= 256*2)
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{
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Write_Buff = Temp_Flash_Buff;
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secpos = WriteAddr/256; //页区地址
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secoff = WriteAddr%256; //在扇区内的偏移
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secremain = 256 - secoff; //扇区剩余空间
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if(NumByteToWrite<=secremain) secremain = NumByteToWrite; //当前页区剩余空间可以存放
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while(1)
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{
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FEED_DOG(); //喂狗
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Flash_Read(Write_Buff,256,secpos*256); //读取整个扇区的内容
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for(i=0;i<secremain;i++) //校验数据，判断是否是要擦除扇区
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{
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if(Write_Buff[secoff+i]!=0xFF) break;
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}
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if(i<secremain) //需要擦除页区
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{
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Flash_Erase_Page(secpos); //擦除整个页区
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for(i=0;i<secremain;i++) //复制
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{
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Write_Buff[i+secoff]=pBuffer[i];
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}
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Flash_Write_NoCheck(Write_Buff,256,secpos*256); //写入整个页区
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}else {
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if(secremain == 256)
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{
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Flash_Write_NoCheck(pBuffer,256,secpos*256); //写入整个页区
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}else if(secremain < 256){
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Flash_Write_NoCheck(pBuffer,secremain,WriteAddr); //不需要擦除可以直接，写入整个页区
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}
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}
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if(NumByteToWrite == secremain) break; //写入完成
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else //写入未结束
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{
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secpos++; //页区地址增1
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secoff = 0; //页区偏移位置归零
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pBuffer += secremain; //数据指针偏移
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WriteAddr += secremain; //数据保存地址偏移
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NumByteToWrite -= secremain; //剩余写入字节数递减
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if(NumByteToWrite > 256) secremain = 256; //下一个页区还是写不完
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else secremain = NumByteToWrite; //下一个页区可以写完
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}
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}
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}
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else
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{
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Write_Buff = Temp_Flash_Buff;
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secpos = WriteAddr/4096; //扇区地址
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secoff = WriteAddr%4096; //在扇区内的偏移
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secremain = 4096 - secoff; //扇区剩余空间
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if(NumByteToWrite<=secremain) secremain = NumByteToWrite; //当前扇区剩余空间可以存放
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while(1)
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{
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FEED_DOG(); //喂狗
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Flash_Read(Write_Buff,2048,secpos*4096); //读取整个扇区的内容
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Flash_Read(Write_Buff+2048,2048,secpos*4096+2048); //读取整个扇区的内容
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for(i=0;i<secremain;i++) //校验数据，判断是否是要擦除扇区
|
||
{
|
||
if(Write_Buff[secoff+i]!=0xFF)break;
|
||
}
|
||
|
||
if(i<secremain) //需要擦除扇区
|
||
{
|
||
Flash_Erase_Sector(secpos); //擦除整个扇区
|
||
for(i=0;i<secremain;i++) //复制
|
||
{
|
||
Write_Buff[i+secoff]=pBuffer[i];
|
||
}
|
||
Flash_Write_NoCheck(Write_Buff,2048,secpos*4096); //写入整个扇区
|
||
Flash_Write_NoCheck(Write_Buff+2048,2048,secpos*4096+2048); //写入整个扇区
|
||
}else {
|
||
if(secremain == 4096)
|
||
{
|
||
Flash_Write_NoCheck(pBuffer,2048,secpos*4096); //写入整个扇区
|
||
Flash_Write_NoCheck(pBuffer+2048,2048,secpos*4096+2048); //写入整个扇区
|
||
}else if(secremain < 4096){
|
||
Flash_Write_NoCheck(pBuffer,secremain,WriteAddr); //不需要擦除可以直接，写入整个扇区
|
||
}
|
||
}
|
||
if(NumByteToWrite == secremain) break; //写入完成
|
||
else //写入未结束
|
||
{
|
||
secpos++; //扇区地址增1
|
||
secoff = 0; //扇区偏移位置归零
|
||
pBuffer += secremain; //数据指针偏移
|
||
WriteAddr += secremain; //数据保存地址偏移
|
||
NumByteToWrite -= secremain; //剩余写入字节数递减
|
||
if(NumByteToWrite > 4096) secremain = 4096; //下一个扇区还是写不完
|
||
else secremain = NumByteToWrite; //下一个扇区可以写完
|
||
}
|
||
}
|
||
}
|
||
}
|
||
|
||
/*******************************************************************************
|
||
* Function Name : SPI_FLASH_APP_Data_Erase
|
||
* Description : 外部Flash APP空间擦除
|
||
* APP空间大小 Size: 0x00070000 地址范围：0x00000000 ~ 0x0006FFFF
|
||
*******************************************************************************/
|
||
__attribute__((section(".non_0_wait"))) void SPI_FLASH_APP_Data_Erase(void)
|
||
{
|
||
for(uint8_t i = 0;i < 7;i++)
|
||
{
|
||
Flash_Erase_Block(i);
|
||
}
|
||
}
|
||
|
||
/*******************************************************************************
|
||
* Function Name : SPI_FLASH_Logic_File_Erase
|
||
* Description : 外部Flash 配置文件空间擦除
|
||
* APP空间大小 Size: 0x00090000 地址范围：0x00070000 ~ 0x000FFFFF
|
||
*******************************************************************************/
|
||
__attribute__((section(".non_0_wait"))) void SPI_FLASH_Logic_File_Erase(void)
|
||
{
|
||
for(uint8_t i = 7;i < 16;i++)
|
||
{
|
||
Flash_Erase_Block(i);
|
||
}
|
||
}
|
||
|
||
|
||
|