Kim GiJeong / Mbed 2 deprecated try15_flash_write_register

flash

Dependencies:   mbed

main.cpp@0:d885866e7cbf, 2019-08-12 (annotated)

Committer:
GiJeongKim
Date:
Mon Aug 12 09:16:40 2019 +0000
Revision:
0:d885866e7cbf
flash memory;

Who changed what in which revision?

UserRevisionLine numberNew contents of line
GiJeongKim 0:d885866e7cbf 1 #include "stm32f4xx_flash.h"
GiJeongKim 0:d885866e7cbf 2 #include "mbed.h"
GiJeongKim 0:d885866e7cbf 3
GiJeongKim 0:d885866e7cbf 4 //address (write & read)
GiJeongKim 0:d885866e7cbf 5 #define ADDR_FLASH_SECTOR_0 ((uint32_t)0x08000000) /* Base @ of Sector 0, 16 Kbytes */
GiJeongKim 0:d885866e7cbf 6 #define ADDR_FLASH_SECTOR_1 ((uint32_t)0x08004000) /* Base @ of Sector 1, 16 Kbytes */
GiJeongKim 0:d885866e7cbf 7 #define ADDR_FLASH_SECTOR_2 ((uint32_t)0x08008000) /* Base @ of Sector 2, 16 Kbytes */
GiJeongKim 0:d885866e7cbf 8 #define ADDR_FLASH_SECTOR_3 ((uint32_t)0x0800C000) /* Base @ of Sector 3, 16 Kbytes */
GiJeongKim 0:d885866e7cbf 9 #define ADDR_FLASH_SECTOR_4 ((uint32_t)0x08010000) /* Base @ of Sector 4, 64 Kbytes */
GiJeongKim 0:d885866e7cbf 10 #define ADDR_FLASH_SECTOR_5 ((uint32_t)0x08020000) /* Base @ of Sector 5, 128 Kbytes */
GiJeongKim 0:d885866e7cbf 11 #define ADDR_FLASH_SECTOR_6 ((uint32_t)0x08040000) /* Base @ of Sector 6, 128 Kbytes */
GiJeongKim 0:d885866e7cbf 12 #define ADDR_FLASH_SECTOR_7 ((uint32_t)0x08060000) /* Base @ of Sector 7, 128 Kbytes */
GiJeongKim 0:d885866e7cbf 13
GiJeongKim 0:d885866e7cbf 14 // sector (erase sector) binary_SNB<<3
GiJeongKim 0:d885866e7cbf 15 #define FLASH_Latency_0 ((uint8_t)0x0000) /*!< FLASH Zero Latency cycle */
GiJeongKim 0:d885866e7cbf 16 #define FLASH_Latency_1 ((uint8_t)0x0001) /*!< FLASH One Latency cycle */
GiJeongKim 0:d885866e7cbf 17 #define FLASH_Latency_2 ((uint8_t)0x0002) /*!< FLASH Two Latency cycles */
GiJeongKim 0:d885866e7cbf 18 #define FLASH_Latency_3 ((uint8_t)0x0003) /*!< FLASH Three Latency cycles */
GiJeongKim 0:d885866e7cbf 19 #define FLASH_Latency_4 ((uint8_t)0x0004) /*!< FLASH Four Latency cycles */
GiJeongKim 0:d885866e7cbf 20 #define FLASH_Latency_5 ((uint8_t)0x0005) /*!< FLASH Five Latency cycles */
GiJeongKim 0:d885866e7cbf 21 #define FLASH_Latency_6 ((uint8_t)0x0006) /*!< FLASH Six Latency cycles */
GiJeongKim 0:d885866e7cbf 22 #define FLASH_Latency_7 ((uint8_t)0x0007) /*!< FLASH Seven Latency cycles */
GiJeongKim 0:d885866e7cbf 23
GiJeongKim 0:d885866e7cbf 24 Serial pc(USBTX,USBRX);
GiJeongKim 0:d885866e7cbf 25
GiJeongKim 0:d885866e7cbf 26 int main(){
GiJeongKim 0:d885866e7cbf 27 FLASH_Unlock();
GiJeongKim 0:d885866e7cbf 28 FLASH_ClearFlag( FLASH_FLAG_EOP | FLASH_FLAG_WRPERR | FLASH_FLAG_PGAERR | FLASH_FLAG_PGPERR | FLASH_FLAG_PGSERR);
GiJeongKim 0:d885866e7cbf 29 FLASH_EraseSector(0x0002<<3, VoltageRange_3); // erase whole sector
GiJeongKim 0:d885866e7cbf 30 FLASH_ProgramWord(0x08008000,0xFFFF); // write at address, 쓸때도 4byte씩 씀
GiJeongKim 0:d885866e7cbf 31 FLASH_Lock();
GiJeongKim 0:d885866e7cbf 32 int a=*(int*)(0x08008000); // 32 bit int로 읽음 _ 4byte씩
GiJeongKim 0:d885866e7cbf 33 pc.printf("%d\n",a);
GiJeongKim 0:d885866e7cbf 34 a=*(int*)(0x08008001);
GiJeongKim 0:d885866e7cbf 35 pc.printf("%d\n",a);
GiJeongKim 0:d885866e7cbf 36 a=*(int*)(0x08008002);
GiJeongKim 0:d885866e7cbf 37 pc.printf("%d\n",a);
GiJeongKim 0:d885866e7cbf 38 a=*(int*)(0x08008003);
GiJeongKim 0:d885866e7cbf 39 pc.printf("%d\n",a);
GiJeongKim 0:d885866e7cbf 40 a=*(int*)(0x08040004);
GiJeongKim 0:d885866e7cbf 41 pc.printf("%d\n",a);
GiJeongKim 0:d885866e7cbf 42 while(1){
GiJeongKim 0:d885866e7cbf 43 // int a=*(int*)(0x08040000); // read value at address
GiJeongKim 0:d885866e7cbf 44 // pc.printf("%d\n",a);
GiJeongKim 0:d885866e7cbf 45 }
GiJeongKim 0:d885866e7cbf 46 }
GiJeongKim 0:d885866e7cbf 47