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flash.c
115 lines (98 loc) · 3.12 KB
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flash.c
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/*
* flash.c - DSP bandpass resonant filter
*
* Author: Dan Green (danngreen1@gmail.com)
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*
* See http://creativecommons.org/licenses/MIT/ for more information.
*
* -----------------------------------------------------------------------------
*/
#include <stm32f4xx.h>
#include "globals.h"
#include "dig_inouts.h"
static uint32_t kSectorBaseAddress[] = {
0x08000000,
0x08004000,
0x08008000,
0x0800C000,
0x08010000,
0x08020000,
0x08040000,
0x08060000,
0x08080000,
0x080A0000,
0x080C0000,
0x080E0000
};
FLASH_Status flash_erase_sector(uint32_t address){
uint8_t i;
FLASH_Unlock();
FLASH_ClearFlag(FLASH_FLAG_EOP | FLASH_FLAG_OPERR | FLASH_FLAG_WRPERR |
FLASH_FLAG_PGAERR | FLASH_FLAG_PGPERR|FLASH_FLAG_PGSERR);
for (i = 0; i < 12; ++i) {
if (address == kSectorBaseAddress[i]) {
FLASH_EraseSector(i * 8, VoltageRange_3);
}
}
FLASH_Lock();
}
FLASH_Status flash_open_erase_sector(uint32_t address){
uint8_t i;
for (i = 0; i < 12; ++i) {
if (address == kSectorBaseAddress[i]) {
FLASH_EraseSector(i * 8, VoltageRange_3);
}
}
}
FLASH_Status flash_begin_open_program(void){
FLASH_Unlock();
FLASH_ClearFlag(FLASH_FLAG_EOP | FLASH_FLAG_OPERR | FLASH_FLAG_WRPERR |
FLASH_FLAG_PGAERR | FLASH_FLAG_PGPERR|FLASH_FLAG_PGSERR);
}
FLASH_Status flash_open_program_byte(uint8_t byte, uint32_t address){
FLASH_ProgramByte(address, byte);
}
FLASH_Status flash_open_program_word(uint32_t word, uint32_t address){
FLASH_ProgramWord(address, word);
}
FLASH_Status flash_end_open_program(void){
FLASH_Lock();
}
//size is in # of bytes
FLASH_Status flash_open_program_array(uint8_t* arr, uint32_t address, uint32_t size) {
while(size--) {
FLASH_ProgramByte(address, *arr++);
address++;
}
}
//size in # of bytes
FLASH_Status flash_read_array(uint8_t* arr, uint32_t address, uint32_t size) {
while(size--) {
*arr++ = (uint8_t)(*(__IO uint32_t*)address);
address++;
}
}
uint32_t flash_read_word(uint32_t address){
return( *(__IO uint32_t*)address);
}
uint8_t flash_read_byte(uint32_t address){
return((uint8_t) (*(__IO uint32_t*)address));
}