C++ (Cpp) flash_program_half_word Examples

Example #1

File: configuration.c Project: nerdmaennchen/led_cube

void config_updateToFlash()
{

    uint16_t *dst = &_flashConfigROMBegin;
    uint16_t *src = &_flashConfigRAMBegin;

    bool canUpdateFlash = false;
    for (; src < &_flashConfigRAMEnd; ++src, ++dst)
    {
        if (*dst != *src)
        {
            canUpdateFlash = true;
            break;
        }
    }


    if (false != canUpdateFlash)
    {
        dst = &_flashConfigROMBegin;
        src = &_flashConfigRAMBegin;
        (void) flash_unlock();
        flash_erase_sector(FLASH_CONFIG_SECTOR, FLASH_PROGRAMM_ACCESS_SIZE);
        for (; src < &_flashConfigRAMEnd; ++src, ++dst)
        {
            flash_program_half_word((uint32_t)dst, *src, FLASH_PROGRAMM_ACCESS_SIZE);
        }
        (void) flash_lock();
    }
}

Example #2

File: settings_arch.c Project: 1bitsquared/paparazzi

static int32_t pflash_program_bytes(struct FlashInfo* flash,
                    uint32_t   src,
                    uint32_t   size,
                    uint32_t   chksum) {
  uint32_t i;

  /* erase */
  flash_unlock();
  flash_erase_page(flash->addr);
  flash_lock();

  /* verify erase */
  for (i=0; i<flash->page_size; i+=4) {
    if ((*(uint32_t*) (flash->addr + i)) != 0xFFFFFFFF) return -1;
  }

  flash_unlock();
  /* write full 16 bit words */
  for (i=0; i<(size & ~1); i+=2) {
    flash_program_half_word(flash->addr+i,
        (uint16_t)(*(uint8_t*)(src+i) | (*(uint8_t*)(src+i+1)) << 8));
  }
  /* fill bytes with a zero */
  if (size & 1) {
    flash_program_half_word(flash->addr+i, (uint16_t)(*(uint8_t*)(src+i)));
  }
  /* write size */
  flash_program_half_word(flash->addr+flash->page_size-FSIZ,
                          (uint16_t)(size & 0xFFFF));
  flash_program_half_word(flash->addr+flash->page_size-FSIZ+2,
                          (uint16_t)((size >> 16) & 0xFFFF));
  /* write checksum */
  flash_program_half_word(flash->addr+flash->page_size-FCHK,
                          (uint16_t)(chksum & 0xFFFF));
  flash_program_half_word(flash->addr+flash->page_size-FCHK+2,
                          (uint16_t)((chksum >> 16) & 0xFFFF));
  flash_lock();

  /* verify data */
  for (i=0; i<size; i++) {
    if ((*(uint8_t*) (flash->addr+i)) != (*(uint8_t*) (src+i))) return -2;
  }
  if (*(uint32_t*) (flash->addr+flash->page_size-FSIZ) != size) return -3;
  if (*(uint32_t*) (flash->addr+flash->page_size-FCHK) != chksum) return -4;

  return 0;
}

Example #3

File: aseba_flash.c Project: SyrianSpock/stm32f4-discovery-aseba

void aseba_flash_write_page(int aseba_page, uint16_t *page_buffer)
{
    int i;
    for (i = 0; i < ASEBA_PAGE_SIZE_IN_WORDS; i++) {
        flash_program_half_word((uint32_t)aseba_page_address(aseba_page, i), page_buffer[i]);
    }
    flash_lock();
}

Example #4

File: dfu_f1.c Project: MrZANE42/blackmagic

void dfu_flash_program_buffer(uint32_t baseaddr, void *buf, int len)
{
	for(int i = 0; i < len; i += 2)
		flash_program_half_word(baseaddr + i,
				*(uint16_t*)(buf+i));

	/* Call the platform specific dfu event callback. */
	dfu_event();
}

Example #5

File: config.c Project: IHaveADrone/superbitrf-firmware

void config_store(void) {

	uint16_t size = sizeof(struct Config);
	uint32_t addr = CONFIG_ADDR;
	uint8_t  *byte_config = (uint8_t *)&usbrf_config;
	uint16_t write_word;
	int i;

	/* Unlock flash. */
	flash_unlock();

	/* Erase the config storage page. */
	flash_erase_page(CONFIG_ADDR);

	/* Write config struct to flash. */
	write_word = 0xFFFF;
	for (i = 0; i < size; i++) {
		write_word = (write_word << 8) | (*(byte_config++));
		if ((i % 2) == 1) {
			flash_program_half_word(addr, write_word);
			addr += 2;
		}
	}

	if ((i % 2) == 1) {
		write_word = (write_word << 8) | 0xFF;
		flash_program_half_word(addr, write_word);
	}

	/* Write config CRC to flash. */

	/* Lock flash. */
	flash_lock();

	/* Check flash content for accuracy. */

}

Example #6

File: flash_common_f01.c Project: esden/libopencm3

void flash_program_word(uint32_t address, uint32_t data)
{
    flash_program_half_word(address,(uint16_t)data);
    flash_program_half_word(address+2,(uint16_t)(data>>16));
}

Example #7

File: dfu_f1.c Project: BreakawayConsulting/blackmagic

void dfu_flash_program_buffer(uint32_t baseaddr, void *buf, int len)
{
	for(int i = 0; i < len; i += 2)
		flash_program_half_word(baseaddr + i,
				*(u16*)(buf+i));
}