284 lines
9.2 KiB
C
284 lines
9.2 KiB
C
/********************************** (C) COPYRIGHT *******************************
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* File Name : CH57x_flash.c
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* Author : WCH
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* Version : V1.1
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* Date : 2020/03/20
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* Description :
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*******************************************************************************/
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/******************************************************************************/
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/* 头文件包含 */
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#include "CH57x_common.h"
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/* 操作Flash的保护状态标志 */
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#define CODEFLASH_SAFE_FLAG1 0x57
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#define CODEFLASH_SAFE_FLAG2 0xA8
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/* 操作Flash的保护状态变量 */
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unsigned char codeflash_access_flag1 = 0x0;
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unsigned char codeflash_access_flag2 = 0x0;
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/*******************************************************************************
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* Function Name : GetUniqueID
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* Description : 获取芯片唯一ID，小端模式，6B-ID， 2B-CKS
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* Input : buf: 存储8字节，前6字节（小端）ID，后2字节（小端）校验和
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* Return : None
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*******************************************************************************/
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void GetUniqueID(PUINT8 buf)
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{
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PUINT8 pID;
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UINT8 i;
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pID = (PUINT8)ROM_UUID_ADDR;
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for(i=0; i<8; i++) *buf++ = *pID++;
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}
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/*******************************************************************************
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* Function Name : GetMACAddress
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* Description : 获取网络MAC，小端模式，6B-MAC
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* Input : buf: 存储6字节，6字节（小端）物理 MAC
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* Return : None
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*******************************************************************************/
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void GetMACAddress(PUINT8 buf)
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{
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PUINT8 pMAC;
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UINT8 i;
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pMAC = (PUINT8)ROM_MAC_ADDR;
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for(i=0; i<6; i++) *buf++ = *pMAC++;
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}
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/*******************************************************************************
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* Function Name : FlashBlockErase
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* Description : Flash 块擦除，一次擦除512B
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* Input : addr: 32位地址，需要512对齐
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* codeflash: startAddr - 0x00000000 size - 0x3E800
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* dataflash: startAddr - 0x3E800(DATA_FLASH_ADDR) size - 0x0800(DATA_FLASH_SIZE)
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* Return : 0 - 成功，其他 - 错误
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*******************************************************************************/
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UINT8 FlashBlockErase(UINT32 addr)
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{
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UINT8 status = 0;
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volatile UINT8 op_step;
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if( addr & (0x200-1) ) return 1; //地址不对齐
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op_step = 0x11;
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codeflash_access_flag1 = 0;
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codeflash_access_flag2 = 0;
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R8_FLASH_PROTECT = RB_ROM_WE_MUST_10;
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//开启电压监控中断
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op_step += 0x11;
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if((R8_BAT_DET_CTRL & 0x0F) != 0x0D) PowerMonitor( ENABLE );
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op_step += 0x11;
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if((R8_BAT_STATUS & 0x03) != 0x00) return 2; //电源电压偏低，Flash不允许操作
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op_step += 0x11;
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if(((R8_BAT_STATUS & 0x03) == 0x00)
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&&(op_step == 0x44))
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{
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codeflash_access_flag1 = CODEFLASH_SAFE_FLAG1;
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}
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op_step += 0x11;
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if(((R8_BAT_STATUS & 0x03) == 0x00)
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&&(op_step == 0x55)
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&&(codeflash_access_flag1 == CODEFLASH_SAFE_FLAG1))
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{
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codeflash_access_flag2 = CODEFLASH_SAFE_FLAG2;
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}
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op_step += 0x11;
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if((codeflash_access_flag1 == CODEFLASH_SAFE_FLAG1)
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&&(codeflash_access_flag2 == CODEFLASH_SAFE_FLAG2)
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&&(op_step == 0x66))
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{
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R32_FLASH_ADDR = addr;
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if( addr < DATA_FLASH_ADDR ) R8_FLASH_PROTECT = RB_ROM_WE_MUST_10|RB_ROM_CODE_WE; // Codefalsh区
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else R8_FLASH_PROTECT = RB_ROM_WE_MUST_10|RB_ROM_DATA_WE; // datafalsh区
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}
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op_step += 0x11;
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/* 判断操作Flash的保护状态标志 */
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if((codeflash_access_flag1 == CODEFLASH_SAFE_FLAG1)
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&&(codeflash_access_flag2 == CODEFLASH_SAFE_FLAG2)
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&&(op_step == 0x77))
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{
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R8_FLASH_COMMAND = ROM_CMD_ERASE;
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status = (unsigned char)(R16_FLASH_STATUS & 0xff);
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}
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op_step = 0x00;
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codeflash_access_flag1 = 0x00;
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codeflash_access_flag2 = 0x00;
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R8_FLASH_PROTECT = RB_ROM_WE_MUST_10; // LOCK
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if( status != RB_ROM_ADDR_OK ) return 3; //操作失败
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return 0;
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}
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/*******************************************************************************
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* Function Name : FlashWriteDW
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* Description : Flash 双字写，地址需4字节对齐
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* Input : addr: 32位地址，需要4对齐
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* codeflash: startAddr - 0x00000000 size - 0x3E800
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* dataflash: startAddr - 0x3E800(DATA_FLASH_ADDR) size - 0x0800(DATA_FLASH_SIZE)
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dat: 32位写入数据
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* Return : FAILED - 错误
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SUCCESS - 成功
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*******************************************************************************/
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UINT8 FlashWriteDW(UINT32 addr, UINT32 dat)
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{
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UINT32 add = addr;
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UINT32 val = dat;
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UINT8 status = 0;
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volatile UINT8 op_step;
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if( addr & (4-1) ) return 1; //地址不对齐
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op_step = 0x11;
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codeflash_access_flag1 = 0;
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codeflash_access_flag2 = 0;
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R8_FLASH_PROTECT = RB_ROM_WE_MUST_10;
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//开启电压监控中断
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op_step += 0x11;
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if((R8_BAT_DET_CTRL & 0x0F) != 0x0D) PowerMonitor( ENABLE );
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op_step += 0x11;
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if((R8_BAT_STATUS & 0x03) != 0x00) return 2; //电源电压偏低，Flash不允许操作
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op_step += 0x11;
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if(((R8_BAT_STATUS & 0x01) == 0x00)
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&&(op_step == 0x44))
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{
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codeflash_access_flag1 = CODEFLASH_SAFE_FLAG1;
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}
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op_step += 0x11;
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if(((R8_BAT_STATUS & 0x01) == 0x00)
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&&(op_step == 0x55)
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&&(codeflash_access_flag1 == CODEFLASH_SAFE_FLAG1))
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{
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codeflash_access_flag2 = CODEFLASH_SAFE_FLAG2;
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}
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op_step += 0x11;
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if((codeflash_access_flag1 == CODEFLASH_SAFE_FLAG1)
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&&(codeflash_access_flag2 == CODEFLASH_SAFE_FLAG2)
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&&(op_step == 0x66))
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{
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if( addr < DATA_FLASH_ADDR ) R8_FLASH_PROTECT = RB_ROM_WE_MUST_10|RB_ROM_CODE_WE; // Codefalsh区
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else R8_FLASH_PROTECT = RB_ROM_WE_MUST_10|RB_ROM_DATA_WE; // datafalsh区
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}
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op_step += 0x11;
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/* 判断OTA操作Flash的保护状态标志 */
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if((codeflash_access_flag1==CODEFLASH_SAFE_FLAG1)
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&&(codeflash_access_flag2==CODEFLASH_SAFE_FLAG2)
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&&(op_step == 0x77))
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{
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R32_FLASH_ADDR = add;
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R32_FLASH_DATA = val;
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R8_FLASH_COMMAND = ROM_CMD_PROG;
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status = (unsigned char)(R16_FLASH_STATUS & 0xff);
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}
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op_step = 0x00;
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codeflash_access_flag1 = 0x00;
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codeflash_access_flag2 = 0x00;
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R8_FLASH_PROTECT = RB_ROM_WE_MUST_10;
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if( status != RB_ROM_ADDR_OK ) return 3; //操作失败
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return 0;
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}
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/*******************************************************************************
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* Function Name : FlashWriteBuf
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* Description : Flash 连续多个双字写入
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* Input : addr: 32位地址，需要4对齐
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* codeflash: startAddr - 0x00000000 size - 0x3E800
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* dataflash: startAddr - 0x3E800(DATA_FLASH_ADDR) size - 0x0800(DATA_FLASH_SIZE)
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* pdat: 待写入数据缓存区首地址
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* len: 待写入数据字节长度
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* Return : 0 - 成功，其他 - 错误
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*******************************************************************************/
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UINT8 FlashWriteBuf(UINT32 addr, PUINT32 pdat, UINT16 len)
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{
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UINT32 add = addr;
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PUINT32 p32 = pdat;
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UINT8 status = 0;
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UINT16 i;
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volatile UINT8 op_step;
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if( addr & (4-1) ) return 1; //地址不对齐
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op_step = 0x11;
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codeflash_access_flag1 = 0;
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codeflash_access_flag2 = 0;
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R8_FLASH_PROTECT = RB_ROM_WE_MUST_10;
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//开启电压监控中断
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op_step += 0x11;
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if((R8_BAT_DET_CTRL & 0x0F) != 0x0D) PowerMonitor( ENABLE );
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op_step += 0x11;
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if((R8_BAT_STATUS & 0x03) != 0x00) return 2; //电源电压偏低，Flash不允许操作
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op_step += 0x11;
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if(((R8_BAT_STATUS & 0x01) == 0x00)
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&&(op_step == 0x44))
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{
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codeflash_access_flag1 = CODEFLASH_SAFE_FLAG1;
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}
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op_step += 0x11;
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if(((R8_BAT_STATUS & 0x01) == 0x00)
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&&(op_step == 0x55)
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&&(codeflash_access_flag1 == CODEFLASH_SAFE_FLAG1))
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{
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codeflash_access_flag2 = CODEFLASH_SAFE_FLAG2;
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}
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op_step += 0x11;
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if((codeflash_access_flag1 == CODEFLASH_SAFE_FLAG1)
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&&(codeflash_access_flag2 == CODEFLASH_SAFE_FLAG2)
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&&(op_step == 0x66))
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{
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if( addr < DATA_FLASH_ADDR ) R8_FLASH_PROTECT = RB_ROM_WE_MUST_10|RB_ROM_CODE_WE; // Codefalsh区
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else R8_FLASH_PROTECT = RB_ROM_WE_MUST_10|RB_ROM_DATA_WE; // datafalsh区
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}
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op_step += 0x11;
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/* 判断OTA操作Flash的保护状态标志 */
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if((codeflash_access_flag1==CODEFLASH_SAFE_FLAG1)
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&&(codeflash_access_flag2==CODEFLASH_SAFE_FLAG2)
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&&(op_step == 0x77))
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{
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for(i=0; i<len; i+=4)
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{
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R32_FLASH_ADDR = add;
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R32_FLASH_DATA = *p32++;
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R8_FLASH_COMMAND = ROM_CMD_PROG;
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add += 4;
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//status = R8_FLASH_STATUS;
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status = (unsigned char)(R16_FLASH_STATUS & 0xff);
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if( status != RB_ROM_ADDR_OK ) break;
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}
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}
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op_step = 0x00;
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codeflash_access_flag1 = 0x00;
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codeflash_access_flag2 = 0x00;
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R8_FLASH_PROTECT = RB_ROM_WE_MUST_10;
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if( status != RB_ROM_ADDR_OK ) return 3; //操作失败
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return 0;
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}
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