nRF52832 flash erase problem:cannot erase the third page

RE: nRF52832 flash erase problem:cannot erase the third page

longycy — Wed, 01 Nov 2017 00:47:01 GMT

Yes,I also think this is the problem. I cannot erase all pages becacase it will erase my code so that the system crash. Thank you very much!

RE: nRF52832 flash erase problem:cannot erase the third page

Jørgen Holmefjord — Tue, 31 Oct 2017 14:36:34 GMT

Where in flash is your application located? Make sure you are not erasing any pages where the code is stored. Please refer the flashwrite example, which shows how to erase the last page in flash:

pg_size = NRF_FICR->CODEPAGESIZE;
pg_num  = NRF_FICR->CODESIZE - 1;  // Use last page in flash
// Start address:
addr = (uint32_t *)(pg_size * pg_num);
// Erase page:
flash_page_erase(addr);

RE: nRF52832 flash erase problem:cannot erase the third page

Vincent — Tue, 31 Oct 2017 03:37:39 GMT

would you try these and pg_size is 1024 Words

#define PAGE_SIZE_WORDS 1024

// Retrieve the address of a page.
static uint32_t const * address_of_page(uint16_t page_num)
{
    return fs_config.p_start_addr + (page_num * PAGE_SIZE_WORDS);
}

void m_flash_erase_page_0(void)
{
	  erase_flag=1;
	  // Erase one page (page 0).
    fs_ret_t ret = fs_erase(&fs_config, address_of_page(0), 1, NULL);
    if( ret != FS_SUCCESS )
    {
        NRF_LOG_INFO("fs_erase error\r\n");
    }
		 while(erase_flag == 1) { power_manage(); }
}