Bayley Wang / Mbed 2 deprecated flash_configuration

flash based config testing

Dependencies:   mbed

FlashWriter/FlashWriter.cpp@3:82c00c8e2cb4, 2017-03-07 (annotated)

Committer:
bwang
Date:
Tue Mar 07 08:06:39 2017 +0000
Revision:
3:82c00c8e2cb4
Parent:
0:941e150e78b6 
lot's more commands

Who changed what in which revision?

UserRevisionLine numberNew contents of line
bwang 0:941e150e78b6 1 #include "stm32f4xx_flash.h"
bwang 0:941e150e78b6 2 #include "FlashWriter.h"
bwang 0:941e150e78b6 3
bwang 0:941e150e78b6 4 FlashWriter::FlashWriter(int sector) {
bwang 0:941e150e78b6 5 if (sector > 7) sector = 7;
bwang 0:941e150e78b6 6 __sector = sector;
bwang 0:941e150e78b6 7 __base = __SECTOR_ADDRS[sector];
bwang 0:941e150e78b6 8 __ready = false;
bwang 0:941e150e78b6 9 }
bwang 0:941e150e78b6 10
bwang 0:941e150e78b6 11 bool FlashWriter::ready() {
bwang 0:941e150e78b6 12 return __ready;
bwang 0:941e150e78b6 13 }
bwang 0:941e150e78b6 14
bwang 0:941e150e78b6 15 void FlashWriter::open() {
bwang 0:941e150e78b6 16 FLASH_Unlock();
bwang 0:941e150e78b6 17 FLASH_ClearFlag( FLASH_FLAG_EOP | FLASH_FLAG_WRPERR | FLASH_FLAG_PGAERR | FLASH_FLAG_PGPERR | FLASH_FLAG_PGSERR);
bwang 0:941e150e78b6 18 FLASH_EraseSector(__SECTORS[__sector], VoltageRange_3);
bwang 0:941e150e78b6 19 __ready = true;
bwang 0:941e150e78b6 20 }
bwang 0:941e150e78b6 21
bwang 0:941e150e78b6 22 void FlashWriter::write(uint32_t index, int x) {
bwang 0:941e150e78b6 23 union {int a; uint32_t b;};
bwang 0:941e150e78b6 24 a = x;
bwang 0:941e150e78b6 25 FLASH_ProgramWord(__base + 4 * index, b);
bwang 0:941e150e78b6 26 }
bwang 0:941e150e78b6 27
bwang 0:941e150e78b6 28 void FlashWriter::write(uint32_t index, unsigned int x) {
bwang 0:941e150e78b6 29 FLASH_ProgramWord(__base + 4 * index, x);
bwang 0:941e150e78b6 30 }
bwang 0:941e150e78b6 31
bwang 0:941e150e78b6 32 void FlashWriter::write(uint32_t index, float x) {
bwang 0:941e150e78b6 33 union {float a; uint32_t b;};
bwang 0:941e150e78b6 34 a = x;
bwang 0:941e150e78b6 35 FLASH_ProgramWord(__base + 4 * index, b);
bwang 0:941e150e78b6 36 }
bwang 0:941e150e78b6 37
bwang 0:941e150e78b6 38 void FlashWriter::close() {
bwang 0:941e150e78b6 39 FLASH_Lock();
bwang 0:941e150e78b6 40 __ready = false;
bwang 0:941e150e78b6 41 }
bwang 0:941e150e78b6 42
bwang 0:941e150e78b6 43 int flashReadInt(uint32_t sector, uint32_t index) {
bwang 0:941e150e78b6 44 return *(int*) (__SECTOR_ADDRS[sector] + 4 * index);
bwang 0:941e150e78b6 45 }
bwang 0:941e150e78b6 46
bwang 0:941e150e78b6 47 uint32_t flashReadUint(uint32_t sector, uint32_t index) {
bwang 0:941e150e78b6 48 return *(uint32_t*) (__SECTOR_ADDRS[sector] + 4 * index);
bwang 0:941e150e78b6 49 }
bwang 0:941e150e78b6 50
bwang 0:941e150e78b6 51 float flashReadFloat(uint32_t sector, uint32_t index) {
bwang 0:941e150e78b6 52 return *(float*) (__SECTOR_ADDRS[sector] + 4 * index);
bwang 0:941e150e78b6 53 }