sd_flash_write and sd_flash_page_erase functions issues?

Question

Hi all,

I have just some issues with sd_flash_write and sd_flash_page_erase functions. I have created some code to read the temperature value and save this value in memory, but I am not able to read it properly. I tested my app printing the messages before memory-related functions, but I am still not able to read the same value as in the temperature function. Can you maybe tell me in which part I made a mistake, and also why my temp sensor constantly reads 52 degrees instead of the normal room temperature value?? Did I maybe there also write some incorrect code? Thanks in advance!

Best regards,

Adnan.

Code:

#include <stdint.h>
#include <string.h>

/* HAL */
#include "boards.h"
#include "simple_hal.h"
#include "app_timer.h"

/* Core */
#include "nrf_mesh_config_core.h"
#include "nrf_mesh_gatt.h"
#include "nrf_mesh_configure.h"
#include "nrf_mesh.h"
#include "mesh_stack.h"
#include "device_state_manager.h"
#include "access_config.h"
#include "proxy.h"

/* Provisioning and configuration */
#include "mesh_provisionee.h"
#include "mesh_app_utils.h"

/* Models */
#include "generic_onoff_server.h"

/* Logging and RTT */
#include "log.h"
#include "rtt_input.h"

/* Example specific includes */
#include "app_config.h"
#include "example_common.h"
#include "nrf_mesh_config_examples.h"
#include "light_switch_example_common.h"
#include "app_onoff.h"
#include "ble_softdevice_support.h"

static void initilize(void)
{

    __LOG_INIT(LOG_SRC_APP | LOG_SRC_ACCESS, LOG_LEVEL_INFO, LOG_CALLBACK_DEFAULT);

}

static uint32_t temp_read()
{

    //int32_t raw_temp;

    uint32_t temp;

    sd_temp_get(&temp);

    //uint32_t temperature = temp;

    uint32_t temperature = temp;

    //sd_temp_get(&raw_temp);

    //int8_t temp = raw_temp >> 4; // divide by 4

    __LOG(LOG_SRC_APP,LOG_LEVEL_INFO,"temp_read = %d \n",temperature);	

    return temperature;

}

static int32_t f_store(uint32_t temperature)
{

    __LOG(LOG_SRC_APP,LOG_LEVEL_INFO,"I enter into f_store function!\n");

    //uint32_t pg_size = NRF_FICR->CODEPAGESIZE;
    //uint32_t pg_num = NRF_FICR->CODESIZE-2; 

    uint32_t f_addr = 0x0007f000;

    //uint32_t *addr = (uint32_t *)(pg_size * pg_num);

    uint32_t *addr = (uint32_t *)f_addr;

    uint32_t tempa[1] = {temperature};

    //uint32_t f_addr = 0x0007f000;

    //uint32_t *p_addr = (uint32_t *)f_addr;

    //sd_flash_page_erase(f_addr);

    sd_flash_page_erase(f_addr);
    
    //sd_flash_write(p_addr, tempa, 1);

    sd_flash_write((uint32_t*)addr, (uint32_t*)tempa, 1);

    __LOG(LOG_SRC_APP,LOG_LEVEL_INFO,"temp_read = %d \n", (uint32_t*)addr);	
    
}


int main(void)
{

    initilize();
    __LOG(LOG_SRC_APP,LOG_LEVEL_INFO,"Hello!\n");	

    __LOG(LOG_SRC_APP,LOG_LEVEL_INFO,"Before temp_read function!\n");
   
    temp_read();

    __LOG(LOG_SRC_APP,LOG_LEVEL_INFO,"After temp_read function!\n");

    f_store(temp_read());

    __LOG(LOG_SRC_APP,LOG_LEVEL_INFO,"After f_store function!\n");
    //initialize();
    //(void) proxy_stop();
    //start();

    for (;;)
    {
        (void)sd_app_evt_wait();
    }
}

Output in J-Link RTT Viewer: