pstorage update error

[iqbalpalemad]

hai

i have tried to store and update some data in flash using pstorage. on storing data data is stored successfully.

#include "mbed.h"
#include "pstorage.h"
#include "nrf_error.h"

pstorage_handle_t rule_handle,base_handle;
uint32_t retval;

uint8_t source_data1[6] = {1,2,3,4,5,6};
uint8_t source_data2[6] = {6,5,4,3,2,1};





static void cb_handler(pstorage_handle_t  * handle,
                       uint8_t              op_code,
                       uint32_t             result,
                       uint8_t            * p_data,
                       uint32_t             data_len)
{
 
    switch(op_code) {
    case PSTORAGE_CLEAR_OP_CODE:
      if (result == NRF_SUCCESS) {
      printf("Clear operation successful in Callback\r\n");
      }
      else {
      printf("Clear operation failed in Callback\r\n");
      }
      break;
    case PSTORAGE_LOAD_OP_CODE:
      if (result == NRF_SUCCESS) {
      printf("Load operation successful in Callback\r\n");
      } 
      else {
      printf("Load operation failed in Callback\r\n");
      }
      break;
    case PSTORAGE_STORE_OP_CODE:
      if (result == NRF_SUCCESS) {
      printf("Store operation successful in Callback\r\n");
      } 
      else {
      printf("Store operation failed in Callback\r\n");
      }
      break;
    case PSTORAGE_UPDATE_OP_CODE:
       if (result == NRF_SUCCESS) {
      printf("update operation successful in Callback\r\n");
      } 
      else {
      printf("update operation failed in Callback\r\n");
      }
      break;
    }
 

}

void store_data(){
    retval = pstorage_store(&base_handle, source_data1,8,0);
         if (retval == NRF_SUCCESS) {
       printf("Store successfully requested. Wait for operation result.\r\n");
     }
     else{
      printf("%d\t",retval);
      printf("store fail\n\r");
     }
   } 
void update_data(){
    retval = pstorage_update(&base_handle,source_data2,8,0);
             if (retval == NRF_SUCCESS) {
       printf("update successfully requested. Wait for operation result.\r\n");
     }
     else{
      printf("%d\t",retval);
      printf("update fail\n\r");
     }
    }

void register_module(){
    
       pstorage_module_param_t param;

       param.block_size  = 1024;
       param.block_count = 2;

       param.cb = cb_handler;

       retval = pstorage_register(&param, &base_handle); //register our pstorage and store store address in handle
 
       if (retval == NRF_SUCCESS) {
            printf("%d\n\r",retval);
            printf("Registration successful.\r\n");
            printf("Module id: %x , block: %x \r\n", base_handle.module_id, base_handle.block_id);
       }
       else{
       printf("%d",retval);
       printf("\n\rregistration failed \n\r");
       }
      
       retval = pstorage_block_identifier_get(&base_handle,1,&rule_handle); 
 
       if (retval == NRF_SUCCESS) {
            printf("%d\n\r",retval);
            printf("Registration successful.\r\n");
            printf("rule id: %x , rule: %x \r\n", rule_handle.module_id, rule_handle.block_id);
       }
       else{
       printf("%d",retval);
       printf("\n\rregistration failed \n\r");
       }
    
}  



int main(){
pstorage_init();
register_module();
store_data();
 //  update_data();
    }

after that i have tried ti modify the value in flash using pstorage_update . but it returns an error NRF_ERROR_INVALID_ADDR . how can i solve this issue.

int main(){
pstorage_init();
register_module();
//store_data();
update_data();
    }

[iqbalpalemad]

Address of base_handle is 0x3E800. the error when update fail is NRF_ERROR_INVALID_ADDR. and i have tried the above example which is similar to the above mentioned example.