1 /********************************** (C) COPYRIGHT ******************************* 2 * File Name : CH57x_flash.c 3 * Author : WCH 4 * Version : V1.1 5 * Date : 2020/03/20 6 * Description : 7 *******************************************************************************/ 8 9 /******************************************************************************/ 10 /* 头文件包含 */ 11 #include "CH57x_common.h" 12 13 /* 操作Flash的保护状态标志 */ 14 #define CODEFLASH_SAFE_FLAG1 0x57 15 #define CODEFLASH_SAFE_FLAG2 0xA8 16 17 /* 操作Flash的保护状态变量 */ 18 unsigned char codeflash_access_flag1 = 0x0; 19 unsigned char codeflash_access_flag2 = 0x0; 20 21 /******************************************************************************* 22 * Function Name : GetUniqueID 23 * Description : 获取芯片唯一ID，小端模式，6B-ID， 2B-CKS 24 * Input : buf: 存储8字节，前6字节（小端）ID，后2字节（小端）校验和 25 * Return : None 26 *******************************************************************************/ GetUniqueID(PUINT8 buf)27void GetUniqueID(PUINT8 buf) 28 { 29 PUINT8 pID; 30 UINT8 i; 31 32 pID = (PUINT8)ROM_UUID_ADDR; 33 for(i=0; i<8; i++) *buf++ = *pID++; 34 } 35 36 /******************************************************************************* 37 * Function Name : GetMACAddress 38 * Description : 获取网络MAC，小端模式，6B-MAC 39 * Input : buf: 存储6字节，6字节（小端）物理 MAC 40 * Return : None 41 *******************************************************************************/ GetMACAddress(PUINT8 buf)42void GetMACAddress(PUINT8 buf) 43 { 44 PUINT8 pMAC; 45 UINT8 i; 46 47 pMAC = (PUINT8)ROM_MAC_ADDR; 48 for(i=0; i<6; i++) *buf++ = *pMAC++; 49 } 50 51 /******************************************************************************* 52 * Function Name : FlashBlockErase 53 * Description : Flash 块擦除，一次擦除512B 54 * Input : addr: 32位地址，需要512对齐 55 * codeflash: startAddr - 0x00000000 size - 0x3E800 56 * dataflash: startAddr - 0x3E800(DATA_FLASH_ADDR) size - 0x0800(DATA_FLASH_SIZE) 57 * Return : 0 - 成功，其他 - 错误 58 *******************************************************************************/ FlashBlockErase(UINT32 addr)59UINT8 FlashBlockErase(UINT32 addr) 60 { 61 UINT8 status = 0; 62 volatile UINT8 op_step; 63 64 if( addr & (0x200-1) ) return 1; //地址不对齐 65 66 op_step = 0x11; 67 codeflash_access_flag1 = 0; 68 codeflash_access_flag2 = 0; 69 R8_FLASH_PROTECT = RB_ROM_WE_MUST_10; 70 71 //开启电压监控中断 72 op_step += 0x11; 73 if((R8_BAT_DET_CTRL & 0x0F) != 0x0D) PowerMonitor( ENABLE ); 74 75 op_step += 0x11; 76 if((R8_BAT_STATUS & 0x03) != 0x00) return 2; //电源电压偏低，Flash不允许操作 77 78 op_step += 0x11; 79 if(((R8_BAT_STATUS & 0x03) == 0x00) 80 &&(op_step == 0x44)) 81 { 82 codeflash_access_flag1 = CODEFLASH_SAFE_FLAG1; 83 } 84 85 op_step += 0x11; 86 if(((R8_BAT_STATUS & 0x03) == 0x00) 87 &&(op_step == 0x55) 88 &&(codeflash_access_flag1 == CODEFLASH_SAFE_FLAG1)) 89 { 90 codeflash_access_flag2 = CODEFLASH_SAFE_FLAG2; 91 } 92 93 op_step += 0x11; 94 if((codeflash_access_flag1 == CODEFLASH_SAFE_FLAG1) 95 &&(codeflash_access_flag2 == CODEFLASH_SAFE_FLAG2) 96 &&(op_step == 0x66)) 97 { 98 R32_FLASH_ADDR = addr; 99 if( addr < DATA_FLASH_ADDR ) R8_FLASH_PROTECT = RB_ROM_WE_MUST_10|RB_ROM_CODE_WE; // Codefalsh区 100 else R8_FLASH_PROTECT = RB_ROM_WE_MUST_10|RB_ROM_DATA_WE; // datafalsh区 101 } 102 103 op_step += 0x11; 104 /* 判断操作Flash的保护状态标志 */ 105 if((codeflash_access_flag1 == CODEFLASH_SAFE_FLAG1) 106 &&(codeflash_access_flag2 == CODEFLASH_SAFE_FLAG2) 107 &&(op_step == 0x77)) 108 { 109 R8_FLASH_COMMAND = ROM_CMD_ERASE; 110 status = (unsigned char)(R16_FLASH_STATUS & 0xff); 111 } 112 113 op_step = 0x00; 114 codeflash_access_flag1 = 0x00; 115 codeflash_access_flag2 = 0x00; 116 R8_FLASH_PROTECT = RB_ROM_WE_MUST_10; // LOCK 117 118 if( status != RB_ROM_ADDR_OK ) return 3; //操作失败 119 return 0; 120 } 121 122 /******************************************************************************* 123 * Function Name : FlashWriteDW 124 * Description : Flash 双字写，地址需4字节对齐 125 * Input : addr: 32位地址，需要4对齐 126 * codeflash: startAddr - 0x00000000 size - 0x3E800 127 * dataflash: startAddr - 0x3E800(DATA_FLASH_ADDR) size - 0x0800(DATA_FLASH_SIZE) 128 dat: 32位写入数据 129 * Return : FAILED - 错误 130 SUCCESS - 成功 131 *******************************************************************************/ FlashWriteDW(UINT32 addr,UINT32 dat)132UINT8 FlashWriteDW(UINT32 addr, UINT32 dat) 133 { 134 UINT32 add = addr; 135 UINT32 val = dat; 136 UINT8 status = 0; 137 volatile UINT8 op_step; 138 139 if( addr & (4-1) ) return 1; //地址不对齐 140 141 op_step = 0x11; 142 codeflash_access_flag1 = 0; 143 codeflash_access_flag2 = 0; 144 R8_FLASH_PROTECT = RB_ROM_WE_MUST_10; 145 146 //开启电压监控中断 147 op_step += 0x11; 148 if((R8_BAT_DET_CTRL & 0x0F) != 0x0D) PowerMonitor( ENABLE ); 149 150 op_step += 0x11; 151 if((R8_BAT_STATUS & 0x03) != 0x00) return 2; //电源电压偏低，Flash不允许操作 152 153 op_step += 0x11; 154 if(((R8_BAT_STATUS & 0x01) == 0x00) 155 &&(op_step == 0x44)) 156 { 157 codeflash_access_flag1 = CODEFLASH_SAFE_FLAG1; 158 } 159 160 op_step += 0x11; 161 if(((R8_BAT_STATUS & 0x01) == 0x00) 162 &&(op_step == 0x55) 163 &&(codeflash_access_flag1 == CODEFLASH_SAFE_FLAG1)) 164 { 165 codeflash_access_flag2 = CODEFLASH_SAFE_FLAG2; 166 } 167 168 op_step += 0x11; 169 if((codeflash_access_flag1 == CODEFLASH_SAFE_FLAG1) 170 &&(codeflash_access_flag2 == CODEFLASH_SAFE_FLAG2) 171 &&(op_step == 0x66)) 172 { 173 if( addr < DATA_FLASH_ADDR ) R8_FLASH_PROTECT = RB_ROM_WE_MUST_10|RB_ROM_CODE_WE; // Codefalsh区 174 else R8_FLASH_PROTECT = RB_ROM_WE_MUST_10|RB_ROM_DATA_WE; // datafalsh区 175 } 176 177 op_step += 0x11; 178 /* 判断OTA操作Flash的保护状态标志 */ 179 if((codeflash_access_flag1==CODEFLASH_SAFE_FLAG1) 180 &&(codeflash_access_flag2==CODEFLASH_SAFE_FLAG2) 181 &&(op_step == 0x77)) 182 { 183 R32_FLASH_ADDR = add; 184 R32_FLASH_DATA = val; 185 R8_FLASH_COMMAND = ROM_CMD_PROG; 186 status = (unsigned char)(R16_FLASH_STATUS & 0xff); 187 } 188 189 op_step = 0x00; 190 codeflash_access_flag1 = 0x00; 191 codeflash_access_flag2 = 0x00; 192 R8_FLASH_PROTECT = RB_ROM_WE_MUST_10; 193 if( status != RB_ROM_ADDR_OK ) return 3; //操作失败 194 195 return 0; 196 197 } 198 199 /******************************************************************************* 200 * Function Name : FlashWriteBuf 201 * Description : Flash 连续多个双字写入 202 * Input : addr: 32位地址，需要4对齐 203 * codeflash: startAddr - 0x00000000 size - 0x3E800 204 * dataflash: startAddr - 0x3E800(DATA_FLASH_ADDR) size - 0x0800(DATA_FLASH_SIZE) 205 * pdat: 待写入数据缓存区首地址 206 * len: 待写入数据字节长度 207 * Return : 0 - 成功，其他 - 错误 208 *******************************************************************************/ FlashWriteBuf(UINT32 addr,PUINT32 pdat,UINT16 len)209UINT8 FlashWriteBuf(UINT32 addr, PUINT32 pdat, UINT16 len) 210 { 211 UINT32 add = addr; 212 PUINT32 p32 = pdat; 213 UINT8 status = 0; 214 UINT16 i; 215 volatile UINT8 op_step; 216 217 if( addr & (4-1) ) return 1; //地址不对齐 218 219 op_step = 0x11; 220 codeflash_access_flag1 = 0; 221 codeflash_access_flag2 = 0; 222 R8_FLASH_PROTECT = RB_ROM_WE_MUST_10; 223 224 //开启电压监控中断 225 op_step += 0x11; 226 if((R8_BAT_DET_CTRL & 0x0F) != 0x0D) PowerMonitor( ENABLE ); 227 228 op_step += 0x11; 229 if((R8_BAT_STATUS & 0x03) != 0x00) return 2; //电源电压偏低，Flash不允许操作 230 231 op_step += 0x11; 232 if(((R8_BAT_STATUS & 0x01) == 0x00) 233 &&(op_step == 0x44)) 234 { 235 codeflash_access_flag1 = CODEFLASH_SAFE_FLAG1; 236 } 237 238 op_step += 0x11; 239 if(((R8_BAT_STATUS & 0x01) == 0x00) 240 &&(op_step == 0x55) 241 &&(codeflash_access_flag1 == CODEFLASH_SAFE_FLAG1)) 242 { 243 codeflash_access_flag2 = CODEFLASH_SAFE_FLAG2; 244 } 245 246 op_step += 0x11; 247 if((codeflash_access_flag1 == CODEFLASH_SAFE_FLAG1) 248 &&(codeflash_access_flag2 == CODEFLASH_SAFE_FLAG2) 249 &&(op_step == 0x66)) 250 { 251 if( addr < DATA_FLASH_ADDR ) R8_FLASH_PROTECT = RB_ROM_WE_MUST_10|RB_ROM_CODE_WE; // Codefalsh区 252 else R8_FLASH_PROTECT = RB_ROM_WE_MUST_10|RB_ROM_DATA_WE; // datafalsh区 253 } 254 255 op_step += 0x11; 256 /* 判断OTA操作Flash的保护状态标志 */ 257 if((codeflash_access_flag1==CODEFLASH_SAFE_FLAG1) 258 &&(codeflash_access_flag2==CODEFLASH_SAFE_FLAG2) 259 &&(op_step == 0x77)) 260 { 261 for(i=0; i<len; i+=4) 262 { 263 R32_FLASH_ADDR = add; 264 R32_FLASH_DATA = *p32++; 265 R8_FLASH_COMMAND = ROM_CMD_PROG; 266 add += 4; 267 //status = R8_FLASH_STATUS; 268 status = (unsigned char)(R16_FLASH_STATUS & 0xff); 269 if( status != RB_ROM_ADDR_OK ) break; 270 } 271 } 272 273 op_step = 0x00; 274 codeflash_access_flag1 = 0x00; 275 codeflash_access_flag2 = 0x00; 276 R8_FLASH_PROTECT = RB_ROM_WE_MUST_10; 277 if( status != RB_ROM_ADDR_OK ) return 3; //操作失败 278 279 return 0; 280 } 281 282 283 284