STM32平台下模擬時序驅動K9F1G08U0E，主要目的為了解、學習NAND FLASH的功能特性，沒有使用STM32的FSMC（火龍開發板硬件為模擬時序驅動），純粹自娛自樂，如對你有幫助，不勝榮幸，呵呵。
C文件內容：
1 #include "NAND512W3A2C.h" 2 /* 3 作者:畢小樂 4 日期:2019.01.24 5 版本:V1.00 6 7 驅動代碼針對K9F1G08U0E時序而寫，K9F1G08U0E與NAND512W3A2C,Pin to Pin兼容。 8 驅動運行平台STM32F103。 9 驅動實現功能： 10 1）Page Read 11 2) Page Program 12 3) Block Erase 13 4) Read Status 14 5) Read ID 15 PE0~PE7 -> DB00~DB07 16 PD6 -> CL 17 PD5 -> AL 18 PD14 -> W 19 PD15 -> R 20 PD7 -> CS 21 PB5 -> R/B 22 */ 23 static void NAND512_Delay_uS(int tick) 24 { 25 int i; 26 while(tick>0) 27 { 28 tick--; 29 for(i=0;i<10;i++) 30 __nop(); 31 } 32 } 33 void NAND512_DB_OutPut(void) 34 { 35 GPIO_InitTypeDef GPIO_InitStructure; 36 37 GPIO_InitStructure.GPIO_Pin = GPIO_Pin_0 | GPIO_Pin_1 | GPIO_Pin_2 | GPIO_Pin_3 38 | GPIO_Pin_4 | GPIO_Pin_5 | GPIO_Pin_6 | GPIO_Pin_7; 39 GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz; 40 GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP; 41 GPIO_Init(GPIOE, &GPIO_InitStructure); 42 } 43 void NAND512_DB_InPut(void) 44 { 45 GPIO_InitTypeDef GPIO_InitStructure; 46 47 GPIO_InitStructure.GPIO_Pin = GPIO_Pin_0 | GPIO_Pin_1 | GPIO_Pin_2 | GPIO_Pin_3 48 | GPIO_Pin_4 | GPIO_Pin_5 | GPIO_Pin_6 | GPIO_Pin_7; 49 GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz; 50 GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING; 51 GPIO_Init(GPIOE, &GPIO_InitStructure); 52 } 53 char NAND512_DB_Read(void) 54 { 55 char dat; 56 NAND512_DB_InPut(); 57 __nop(); 58 dat = GPIO_ReadInputData(GPIOE) & 0x00FF; 59 return dat; 60 } 61 void NAND512_DB_Write(char Data) 62 { 63 u16 temp; 64 NAND512_DB_OutPut(); 65 // __nop(); 66 temp = GPIO_ReadOutputData(GPIOE) & 0xFF00; 67 temp = temp | Data; 68 GPIO_Write(GPIOE,temp); 69 return; 70 } 71 void NAND512_IO_Init(void) 72 { 73 GPIO_InitTypeDef GPIO_InitStructure; 74 75 RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOB | RCC_APB2Periph_GPIOD 76 | RCC_APB2Periph_GPIOE, ENABLE); 77 78 /*CL*/ 79 GPIO_InitStructure.GPIO_Pin = NAND512_CL_PIN; 80 GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz; 81 GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP; 82 GPIO_Init(NAND512_CL_PORT, &GPIO_InitStructure); 83 84 /*AL*/ 85 GPIO_InitStructure.GPIO_Pin = NAND512_AL_PIN; 86 GPIO_Init(NAND512_AL_PORT, &GPIO_InitStructure); 87 88 /*W*/ 89 GPIO_InitStructure.GPIO_Pin = NAND512_W_PIN; 90 GPIO_Init(NAND512_W_PORT, &GPIO_InitStructure); 91 92 /*R*/ 93 GPIO_InitStructure.GPIO_Pin = NAND512_R_PIN; 94 GPIO_Init(NAND512_R_PORT, &GPIO_InitStructure); 95 96 /*CE*/ 97 GPIO_InitStructure.GPIO_Pin = NAND512_CE_PIN; 98 GPIO_Init(NAND512_CE_PORT, &GPIO_InitStructure); 99 100 /*R/B*/ 101 GPIO_InitStructure.GPIO_Pin = NAND512_RB_PIN; 102 GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz; 103 GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IPU; 104 GPIO_Init(NAND512_RB_PORT, &GPIO_InitStructure); 105 106 NAND512_CL_LOW; 107 NAND512_AL_LOW; 108 NAND512_R_HIGH; 109 NAND512_W_HIGH; 110 NAND512_CE_HIGH; 111 } 112 113 //讀狀態寄存器信息 114 char NAND512_Read_Status(void) 115 { 116 char dat; 117 118 NAND512_CL_LOW; 119 NAND512_W_HIGH; 120 NAND512_R_HIGH; 121 NAND512_CE_HIGH; 122 NOP; 123 124 NAND512_Delay_uS(5); 125 NAND512_CL_HIGH; 126 NOP; 127 NOP; 128 NAND512_CE_LOW; 129 NOP; 130 NOP; 131 NOP; 132 NAND512_W_LOW; 133 NAND512_DB_Write(0x70); 134 NOP; 135 NAND512_W_HIGH; 136 137 NAND512_Delay_uS(5); 138 NAND512_CL_LOW; 139 NOP; 140 NOP; 141 //CE狀態保持不變 142 143 NAND512_Delay_uS(10); 144 NAND512_R_LOW; 145 NOP; 146 dat = NAND512_DB_Read(); 147 NAND512_Delay_uS(5); 148 NAND512_R_LOW; 149 NAND512_Delay_uS(5); 150 NAND512_CE_HIGH; 151 NAND512_Delay_uS(20); 152 153 return dat; 154 } 155 156 void NAND512_Read_ID(char* Buf) 157 { 158 char i = 0; 159 160 NAND512_CL_LOW; 161 NAND512_AL_LOW; 162 NAND512_R_HIGH; 163 NAND512_W_HIGH; 164 NAND512_CE_HIGH; 165 NAND512_Delay_uS(5); 166 167 NAND512_CL_HIGH; 168 NAND512_W_LOW; 169 NAND512_Delay_uS(5); 170 NAND512_CE_LOW; 171 NAND512_DB_Write(0x90); 172 NAND512_Delay_uS(5); 173 NAND512_W_HIGH; 174 NAND512_Delay_uS(5); 175 176 NAND512_CL_LOW; 177 NAND512_Delay_uS(20); 178 NAND512_AL_HIGH; 179 NAND512_Delay_uS(20); 180 NAND512_W_LOW; 181 NAND512_DB_Write(0x00); //寫地址0 182 NAND512_Delay_uS(5); 183 NAND512_W_HIGH; 184 NAND512_Delay_uS(10); 185 NAND512_AL_LOW; 186 NAND512_Delay_uS(20); 187 188 for(i=0;i<5;i++) 189 { 190 NAND512_R_LOW; 191 NAND512_Delay_uS(10); 192 Buf[i] = NAND512_DB_Read(); 193 NAND512_R_HIGH; 194 NAND512_Delay_uS(10); 195 } 196 197 return ; 198 } 199 200 void NAND512_Page_Read(char* Buf,int Len,int Add) 201 { 202 int Bank_Index,Page_Index,Page_Start_Add; 203 int Add_New,j; 204 char i; 205 206 Bank_Index = Add / BANK_SIZE; 207 Page_Index = (Add % BANK_SIZE) / PAGE_SIZE; 208 Page_Start_Add = Add % PAGE_SIZE; 209 Add_New = (((Bank_Index<<6) | Page_Index)<<16) | Page_Start_Add; 210 211 NAND512_CL_LOW; 212 NAND512_AL_LOW; 213 NAND512_W_HIGH; 214 NAND512_R_HIGH; 215 NAND512_CE_HIGH; 216 NAND512_Delay_uS(10); 217 218 NAND512_CE_LOW; 219 NAND512_Delay_uS(5); 220 NAND512_CL_HIGH; 221 NAND512_W_LOW; 222 NAND512_DB_Write(0x00); 223 NAND512_Delay_uS(5); 224 NAND512_W_HIGH; 225 NAND512_Delay_uS(5); 226 NAND512_CL_LOW; 227 NAND512_Delay_uS(5); 228 NAND512_AL_HIGH; 229 NAND512_Delay_uS(5); 230 231 //發送地址 232 for(i=0;i<4;i++) 233 { 234 NAND512_W_LOW; 235 NAND512_Delay_uS(5); 236 NAND512_DB_Write(Add_New>>8*i); 237 NAND512_Delay_uS(10); 238 NAND512_W_HIGH; 239 NAND512_Delay_uS(10); 240 } 241 NAND512_AL_LOW; 242 NAND512_Delay_uS(5); 243 NAND512_CL_HIGH; 244 NAND512_Delay_uS(5); 245 NAND512_W_LOW; 246 NAND512_Delay_uS(5); 247 NAND512_DB_Write(0x30); 248 NAND512_Delay_uS(5); 249 NAND512_W_HIGH; 250 NAND512_Delay_uS(5); 251 NAND512_CL_LOW; 252 NAND512_Delay_uS(5); 253 254 while(NAND512_RB_STATUS == 0); 255 NAND512_Delay_uS(5); 256 257 for(j=0;j<Len;j++) 258 { 259 NAND512_R_LOW; 260 NAND512_Delay_uS(5); 261 Buf[j] = NAND512_DB_Read(); 262 NAND512_Delay_uS(5); 263 NAND512_R_HIGH; 264 NAND512_Delay_uS(10); 265 } 266 267 return; 268 } 269 270 char NAND512_Page_Write(char* Buf,int Len,int Add) 271 { 272 int Bank_Index,Page_Index,Page_Start_Add; 273 int Add_New,j; 274 char i,Status; 275 276 Bank_Index = Add / BANK_SIZE; 277 Page_Index = (Add % BANK_SIZE) / PAGE_SIZE; 278 Page_Start_Add = Add % PAGE_SIZE; 279 Add_New = (((Bank_Index<<6) | Page_Index)<<16) | Page_Start_Add; 280 281 NAND512_CL_LOW; 282 NAND512_AL_LOW; 283 NAND512_W_HIGH; 284 NAND512_R_HIGH; 285 NAND512_CE_HIGH; 286 NAND512_Delay_uS(10); 287 288 NAND512_CE_LOW; 289 NAND512_Delay_uS(5); 290 NAND512_CL_HIGH; 291 NAND512_W_LOW; 292 NAND512_DB_Write(0x80); 293 NAND512_Delay_uS(5); 294 NAND512_W_HIGH; 295 NAND512_Delay_uS(5); 296 NAND512_CL_LOW; 297 NAND512_Delay_uS(5); 298 NAND512_AL_HIGH; 299 NAND512_Delay_uS(5); 300 301 //發送地址 302 for(i=0;i<4;i++) 303 { 304 NAND512_W_LOW; 305 NAND512_Delay_uS(5); 306 NAND512_DB_Write(Add_New>>8*i); 307 NAND512_Delay_uS(10); 308 NAND512_W_HIGH; 309 NAND512_Delay_uS(10); 310 } 311 NAND512_AL_LOW; 312 NAND512_Delay_uS(5); 313 314 for(j=0;j<Len;j++) 315 { 316 NAND512_W_LOW; 317 NAND512_Delay_uS(5); 318 NAND512_DB_Write(Buf[j]); 319 NAND512_Delay_uS(5); 320 NAND512_W_HIGH; 321 NAND512_Delay_uS(10); 322 } 323 324 NAND512_CL_HIGH; 325 NAND512_Delay_uS(5); 326 NAND512_W_LOW; 327 NAND512_Delay_uS(5); 328 NAND512_DB_Write(0x10); 329 NAND512_Delay_uS(5); 330 NAND512_W_HIGH; 331 NAND512_Delay_uS(5); 332 333 while(NAND512_RB_STATUS == 0); 334 NAND512_Delay_uS(5); 335 336 Status = NAND512_Read_Status(); 337 338 if((Status & 0x01) == 0) 339 return 1; 340 else 341 return 0; 342 } 343 344 char NAND512_Block_Erase(int Add) 345 { 346 int Bank_Index,Page_Index; 347 int Add_New; 348 char i,Status; 349 350 Bank_Index = Add / BANK_SIZE; 351 Page_Index = (Add % BANK_SIZE) / PAGE_SIZE; 352 Add_New = (Bank_Index<<6) | Page_Index; 353 354 NAND512_CL_LOW; 355 NAND512_AL_LOW; 356 NAND512_W_HIGH; 357 NAND512_R_HIGH; 358 NAND512_CE_HIGH; 359 NAND512_Delay_uS(10); 360 361 NAND512_CE_LOW; 362 NAND512_Delay_uS(5); 363 NAND512_CL_HIGH; 364 NAND512_W_LOW; 365 NAND512_DB_Write(0x60); 366 NAND512_Delay_uS(5); 367 NAND512_W_HIGH; 368 NAND512_Delay_uS(5); 369 NAND512_CL_LOW; 370 NAND512_Delay_uS(5); 371 NAND512_AL_HIGH; 372 NAND512_Delay_uS(5); 373 374 //發送地址 375 for(i=0;i<2;i++) 376 { 377 NAND512_W_LOW; 378 NAND512_Delay_uS(5); 379 NAND512_DB_Write(Add_New>>8*i); 380 NAND512_Delay_uS(10); 381 NAND512_W_HIGH; 382 NAND512_Delay_uS(10); 383 } 384 NAND512_AL_LOW; 385 NAND512_Delay_uS(5); 386 387 NAND512_CL_HIGH; 388 NAND512_Delay_uS(5); 389 NAND512_W_LOW; 390 NAND512_Delay_uS(5); 391 NAND512_DB_Write(0xD0); 392 NAND512_Delay_uS(5); 393 NAND512_W_HIGH; 394 NAND512_Delay_uS(5); 395 NAND512_CL_LOW; 396 NAND512_Delay_uS(5); 397 398 while(NAND512_RB_STATUS == 0); 399 NAND512_Delay_uS(5); 400 401 Status = NAND512_Read_Status(); 402 403 if((Status & 0x01) == 0) 404 return 1; 405 else 406 return 0; 407 }
H文件內容：
1 #ifndef NAND512W3A2C__H 2 #define NAND512W3A2C__H 3 4 #include "stm32f10x.h" 5 6 #define NAND512_CL_PORT GPIOD 7 #define NAND512_AL_PORT GPIOD 8 #define NAND512_W_PORT GPIOD 9 #define NAND512_R_PORT GPIOD 10 #define NAND512_CE_PORT GPIOD 11 #define NAND512_RB_PORT GPIOB 12 #define NAND512_WP_PORT /*GPIOD*/ 13 14 #define NAND512_CL_PIN GPIO_Pin_6 15 #define NAND512_AL_PIN GPIO_Pin_5 16 #define NAND512_W_PIN GPIO_Pin_14 17 #define NAND512_R_PIN GPIO_Pin_15 18 #define NAND512_CE_PIN GPIO_Pin_7 19 #define NAND512_RB_PIN GPIO_Pin_5 20 #define NAND512_WP_PIN /*GPIO_Pin_5*/ 21 22 #define NAND512_CL_CLK RCC_APB2Periph_GPIOD 23 #define NAND512_AL_CLK RCC_APB2Periph_GPIOD 24 #define NAND512_W_CLK RCC_APB2Periph_GPIOD 25 #define NAND512_R_CLK RCC_APB2Periph_GPIOD 26 #define NAND512_CE_CLK RCC_APB2Periph_GPIOD 27 #define NAND512_RB_CLK RCC_APB2Periph_GPIOB 28 #define NAND512_WP_CLK /*RCC_APB2Periph_GPIOD*/ 29 30 #define NAND512_CE_LOW GPIO_ResetBits(NAND512_CE_PORT,NAND512_CE_PIN) 31 #define NAND512_CE_HIGH GPIO_SetBits(NAND512_CE_PORT,NAND512_CE_PIN) 32 #define NAND512_CL_LOW GPIO_ResetBits(NAND512_CL_PORT,NAND512_CL_PIN) 33 #define NAND512_CL_HIGH GPIO_SetBits(NAND512_CL_PORT,NAND512_CL_PIN) 34 #define NAND512_AL_LOW GPIO_ResetBits(NAND512_AL_PORT,NAND512_AL_PIN) 35 #define NAND512_AL_HIGH GPIO_SetBits(NAND512_AL_PORT,NAND512_AL_PIN) 36 #define NAND512_W_LOW GPIO_ResetBits(NAND512_W_PORT,NAND512_W_PIN) 37 #define NAND512_W_HIGH GPIO_SetBits(NAND512_W_PORT,NAND512_W_PIN) 38 #define NAND512_R_LOW GPIO_ResetBits(NAND512_R_PORT,NAND512_R_PIN) 39 #define NAND512_R_HIGH GPIO_SetBits(NAND512_R_PORT,NAND512_R_PIN) 40 41 #define NAND512_RB_STATUS GPIO_ReadInputDataBit(NAND512_RB_PORT,NAND512_RB_PIN) 42 43 #define NOP __nop() 44 #define BANK_SIZE 131072 45 #define PAGE_SIZE 2048 46 47 extern void NAND512_IO_Init(void); 48 extern char NAND512_Read_Status(void); 49 extern void NAND512_Read_ID(char* Buf); 50 extern void NAND512_Page_Read(char* Buf,int Len,int Add); 51 extern char NAND512_Page_Write(char* Buf,int Len,int Add); 52 extern char NAND512_Block_Erase(int Add); 53 #endif