使用飞思卡尔的FEE官方驱动

通过参考官方的驱动手册。修改ee_blocks.h匹配项目。

具体机理可以参考官方文档。本文档在wind river的编译器dcc下测试并使用。

 

 1 #ifndef _EE_BLOCKS_H_
 2 #define _EE_BLOCKS_H_
 3 #include "ee_emulation.h"
 4 /* test ok for 5644A*/
 5 #define C90LC_LML                       0x0004         /* ? Low/Mid Address Sapce Block Locking Register */
 6 #define C90LC_SLL                       0x000C         /* ? Secondary Low/Mid Address Space Block Locking Register */
 7 
 8 #define MAIN_ARRAY_BASE                 0x00000000
 9 
10 /*  0 */
11 #define BLOCK0_OFFSET                   0x00010000        /* Offset of L4 */
12 #define BLOCK0_SIZE                     0x4000             /* 16KB size */
13 #define BLOCK0_MASK                     0b10000 /*L */
14 #define BLOCK0_PARTITION                (0x1<<1)
15 #define BLOCK0_ADD_SPACE                LOW_ADDRESS_SPACE
16 
17 /*  1 */
18 #define BLOCK1_OFFSET                   0x00014000        /* Offset of L5 */
19 #define BLOCK1_SIZE                     0x4000             /* 16 KB size */
20 #define BLOCK1_MASK                     0b100000 /*L */
21 #define BLOCK1_PARTITION                (0x1<<1)
22 #define BLOCK1_ADD_SPACE                LOW_ADDRESS_SPACE
23 
24 /* 2 */
25 #define BLOCK2_OFFSET                   0x00018000        /* Offset of L6 */
26 #define BLOCK2_SIZE                     0x4000             /* 16 KB size */
27 #define BLOCK2_MASK                     0b1000000 /*0b010000  L6*/
28 #define BLOCK2_PARTITION                (0x1<<1)  /*partition 2 (start from partition1)*/
29 #define BLOCK2_ADD_SPACE                LOW_ADDRESS_SPACE
30 
31 /* 3 */
32 #define BLOCK3_OFFSET                   0x0001C000        /* Offset of L7 */
33 #define BLOCK3_SIZE                     0x4000             /* 16 KB size */
34 #define BLOCK3_MASK                     0b10000000 /* 0b100000  L7*/
35 #define BLOCK3_PARTITION                (0x1<<1)  /*partition 2 (start from partition1)*/
36 #define BLOCK3_ADD_SPACE                LOW_ADDRESS_SPACE
37 
38 
39 /* 0xFFFFFF0F means unlocking 0b11110000 in the whole space*/
40 #define UNLOCK_EBLOCKS                  WRITE32(FLASH_REG_BASE + C90LC_LML, 0xA1A11111);\
41                                         WRITE32(FLASH_REG_BASE + C90LC_SLL, 0xC3C33333);\
42                                         WRITE32(FLASH_REG_BASE + C90LC_LML, 0xFFFFFF0F);\
43                                         WRITE32(FLASH_REG_BASE + C90LC_SLL, 0xFFFFFF0F);
44 
45 #endif /* _EE_BLOCKS_H_ */

 

 1 #ifndef _USER_CFG_H_
 2 #define _USER_CFG_H_
 3 #include "ee_blocks.h"
 4 #include "ee_emulation.h"
 5 
 6 //#define SCHEME_SELECT  ECC8_FIXLENGTH  /* works for 5644A */
 7 #define SCHEME_SELECT  ECC8_VARLENGTH    /* works for 5644A */
 8 //#define SCHEME_SELECT  ECC4_FIXLENGTH    /* not ok! FSL_InitEeprom returns EE_ERROR_PE_OPT(0x10)*/
 9 //#define SCHEME_SELECT ECC16_FIXLENGTH /* not for 5644A*/
10 
11 #define MAX_REERASE                 1
12 
13 #define MAX_REPGM_BLK_IND           1
14     
15 #define SWAP_CACHE_SIZE             0x30
16 
17 #define EER_OPTION                  IVOR_EXCEPTION
18 
19 #define FLASH_MODULE                C90FL
20 
21 #define FLASH_REG_BASE              0xC3F88000
22 /*1 FLASH_A_REGS_BASE = 0xC3F8_8000
23 FLASH_B_REGS_BASE = 0xC3F8_C000*/
24 
25 /* Size of eeprom cache byte*/
26 #define EE_CACHE_SIZE       0x80
27 /* Number of eeprom blocks*/
28 #define NUMBER_OF_BLOCK     4
29 /* Maximum number of active blocks */
30 #define NUMBER_OF_ACTIVE_BLOCKS     2
31 /* Size of buffer */
32 #define BUFFER_SIZE         0x50
33 /* Size of data if a fixed length record schem is seleted */
34 #define DATA_SIZE                   0x40   
35 
36 #endif /* _USER_CFG_H_ */

 

 注意，在使用过程中，flash会发现swap，此时不能再对其进行读写。需要等待高压操作完成后才对flash进行操作。

#if 1 /* necessary busy waiting to ensure safty */
while(eraseStatus_Flag == ERASE_INPROGRESS)
{
　　ret = FSL_MainFunction(&eepromConf,&CallBack);
}
#endif

 

转载于:https://www.cnblogs.com/praiseslow/p/9951720.html