ttss_sop/source/msp/eeprom.c

////////////////////////////////////////////////////////////////////////////  
///@copyright  Copyright (c) 2018, 传控科技 All rights reserved.  
///-------------------------------------------------------------------------  
/// @file            msp_eeprom.c
/// @brief           msp @ driver config
///-------------------------------------------------------------------------  
/// @version		1.0  
/// @author			CC 
/// @date			20190106
/// @note			cc_AS_stc02 由stc-isp v6.0860
//////////////////////////////////////////////////////////////////////////////
#include "eeprom.h"
#include "../bsp/bsp_config.h"

struct eeprom_block_t eep_block;

#if(TYPE_MCU == TYPE_MCU_STC_8A || TYPE_MCU == TYPE_MCU_STC_8F)
#define WT_30M          0x80
#define WT_24M          0x81
#define WT_20M          0x82
#define WT_12M          0x83
#define WT_6M           0x84
#define WT_3M           0x85
#define WT_2M           0x86
#define WT_1M           0x87


void L0_Iap_Idle()
{
    IAP_CONTR = 0;                              //关闭IAP功能
    IAP_CMD = 0;                                //清除命令寄存器
    IAP_TRIG = 0;                               //清除触发寄存器
    IAP_ADDRH = 0x80;                           //将地址设置到非IAP区域
    IAP_ADDRL = 0;
}

char L0_Iap_Read(vU16 addr)
{
    char dat;

    IAP_CONTR = WT_12M;                         //使能IAP
    IAP_CMD = 1;                                //设置IAP读命令
    IAP_ADDRL = addr;                           //设置IAP低地址
    IAP_ADDRH = addr >> 8;                      //设置IAP高地址
    IAP_TRIG = 0x5a;                            //写触发命令(0x5a)
    IAP_TRIG = 0xa5;                            //写触发命令(0xa5)
    _nop_();
    dat = IAP_DATA;                             //读IAP数据
    L0_Iap_Idle();                                  //关闭IAP功能

    return dat;
}

void L0_Iap_Program(vU16 addr, char dat)
{
    IAP_CONTR = WT_12M;                         //使能IAP
    IAP_CMD = 2;                                //设置IAP写命令
    IAP_ADDRL = addr;                           //设置IAP低地址
    IAP_ADDRH = addr >> 8;                      //设置IAP高地址
    IAP_DATA = dat;                             //写IAP数据
    IAP_TRIG = 0x5a;                            //写触发命令(0x5a)
    IAP_TRIG = 0xa5;                            //写触发命令(0xa5)
    _nop_();
    L0_Iap_Idle();                                  //关闭IAP功能
}

///每个扇区512字节
///指定地址可以为当前扇区内的任意地址，都会完整擦除当前扇区
void L0_Iap_Erase(vU16 addr)
{
    IAP_CONTR = WT_12M;                         //使能IAP
    IAP_CMD = 3;                                //设置IAP擦除命令
    IAP_ADDRL = addr;                           //设置IAP低地址
    IAP_ADDRH = addr >> 8;                      //设置IAP高地址
    IAP_TRIG = 0x5a;                            //写触发命令(0x5a)
    IAP_TRIG = 0xa5;                            //写触发命令(0xa5)
    _nop_();                                    //
    L0_Iap_Idle();                                  //关闭IAP功能
}

#elif (TYPE_MCU == TYPE_MCU_STC_8G || TYPE_MCU == TYPE_MCU_STC_8H)
void L0_Iap_Idle()
{
    IAP_CONTR = 0;                              //关闭IAP功能
    IAP_CMD = 0;                                //清除命令寄存器
    IAP_TRIG = 0;                               //清除触发寄存器
    IAP_ADDRH = 0x80;                           //将地址设置到非IAP区域
    IAP_ADDRL = 0;
}

char L0_Iap_Read(vU16 addr)
{
    char dat;

    IAP_CONTR = 0x80;                         //使能IAP
    IAP_TPS = 12;
    IAP_CMD = 1;                                //设置IAP读命令
    IAP_ADDRL = addr;                           //设置IAP低地址
    IAP_ADDRH = addr >> 8;                      //设置IAP高地址
    IAP_TRIG = 0x5a;                            //写触发命令(0x5a)
    IAP_TRIG = 0xa5;                            //写触发命令(0xa5)
    _nop_();
    dat = IAP_DATA;                             //读IAP数据
    L0_Iap_Idle();                                  //关闭IAP功能

    return dat;
}

void L0_Iap_Program(vU16 addr, char dat)
{
    IAP_CONTR = 0x80;                         //使能IAP
    IAP_TPS = 12; 								//设置擦除等待参数 12MHz
    IAP_CMD = 2;                                //设置IAP写命令
    IAP_ADDRL = addr;                           //设置IAP低地址
    IAP_ADDRH = addr >> 8;                      //设置IAP高地址
    IAP_DATA = dat;                             //写IAP数据
    IAP_TRIG = 0x5a;                            //写触发命令(0x5a)
    IAP_TRIG = 0xa5;                            //写触发命令(0xa5)
    _nop_();
    L0_Iap_Idle();                                  //关闭IAP功能
}

///每个扇区512字节
///指定地址可以为当前扇区内的任意地址，都会完整擦除当前扇区
void L0_Iap_Erase(vU16 addr)
{
    IAP_CONTR = 0x80;                         //使能IAP
    IAP_TPS = 12; 								//设置擦除等待参数 12MHz
    IAP_CMD = 3;                                //设置IAP擦除命令
    IAP_ADDRL = addr;                           //设置IAP低地址
    IAP_ADDRH = addr >> 8;                      //设置IAP高地址
    IAP_TRIG = 0x5a;                            //写触发命令(0x5a)
    IAP_TRIG = 0xa5;                            //写触发命令(0xa5)
    _nop_();                                    //
    L0_Iap_Idle();                                  //关闭IAP功能
}
#endif


void L0_Iap_Program_array(vU16 addr,U8 *buf,U8 len)
{
	U8 i = 0;
	for(i=0;i<len;i++)
	{
		L0_Iap_Program(addr + i,buf[i]);
	}
}

void L0_Iap_Read_array(vU16 addr,U8 *buf,U8 len)
{
	U8 i = 0;
	for(i=0;i<len;i++)
	{
		buf[i] = L0_Iap_Read(addr + i);
	}
}


//处于节省空间考虑，eeprom读取的数据直接存放到了用户提供的buf中，
//如果buf长度过小，可能引起内存错误
U8 L1_eep_read_block(U8 sector, U8 block, U16 blocksize, U8 *buf, U16 *plen)
{
	U16 i,addr = D_EEP_SECTOR_SIZE * sector + blocksize * block;
	//读取整块
	L0_Iap_Read_array(addr, (U8*)&eep_block, sizeof(eep_block));	
	if(eep_block.filter[0] == D_EEP_BLOCK_FILTER0 && eep_block.filter[1] == D_EEP_BLOCK_FILTER1)
	{
		U8  crc[2] = {0,0};
		crc16(crc, eep_block.filter, 2 + 2 + D_EEP_SECTOR_BLOCK_BUF_SIZE);
		if(eep_block.crc[0] == crc[0] && eep_block.crc[1] == crc[1])
		{
			U16 len = (U16)eep_block.len[0] << 8 | eep_block.len[1];
			for(i=0;i<len;i++)
			{
				buf[i] = eep_block.buf[i];
			}
			if(plen != NULL)
			{
				*plen = len;
			}
			L0_uart0_uc('#');
			return 0;	//ok
		}
	}
	return 1;	//error
}

U8 L1_eep_write_block(U8 sector, U8 block, U16 blocksize, const U8 *buf, U16 len, U8 sectorEraseFlag)
{
	U16 i, addr = D_EEP_SECTOR_SIZE * sector + blocksize * block;
	if(len > D_EEP_SECTOR_BLOCK_BUF_SIZE)
	{
		return 1;
	}
	
	Lc_memset((U8*)&eep_block,0,sizeof(eep_block));
	eep_block.filter[0] = D_EEP_BLOCK_FILTER0;
	eep_block.filter[1] = D_EEP_BLOCK_FILTER1;
	eep_block.len[0] = len >> 8 & 0xFF;
	eep_block.len[1] = len >> 0 & 0xFF;
	for(i=0;i<len;i++)
	{
		eep_block.buf[i] = buf[i];
	}
	crc16(eep_block.crc, eep_block.filter, 2 + 2 + D_EEP_SECTOR_BLOCK_BUF_SIZE);
	if(sectorEraseFlag == 1)
	{
		L0_Iap_Erase(addr);
	}
	//写入整块
	L0_Iap_Program_array(addr, (U8*)&eep_block, sizeof(eep_block));
	return 0;
}

U8 L1_eep_erase_sector(U8 sector)
{
	U16 addr = D_EEP_SECTOR_SIZE * sector;
	L0_Iap_Erase(addr);
	return 0;
}