Reading file nrf_fprintf(line) ?

[RixtronixLAB]

Dear Members,

We tried reading file with nrf_fprintf()....

Code :

 NRF_LOG_RAW_INFO("Entries count _sd: %u\r\n", entries_count);
	  //printf("UART text \r\n");
		NRF_LOG_INFO("Reading file \r \n");
		f_open(&fil, "HRM.TXT", FA_READ);
									
								/* Read all lines and display it */
								while (f_gets(line, sizeof line, &fil))
							  
								 nrf_fprintf(line);
								 
										/* Close the file */
						
								NRF_LOG_INFO("Finished reading file.. \n \r\n");

								f_close(&fil);
}

Output in UART :

0:00:00.000,000] <info> app: USBD MSC example started.
                       

0:00:00.000,000] <info> app: Initializing disk 0 (SDC)...
                    

0:00:00.000,000] <info> app: 
                                                

sting directory _sd: /
                                                       

 <DIR>   SYSTEM~1
                                                            

   6716  NORDIC.TXT
                                                          

  29900  RIXTRO.TXT
                                                          

 305208  HRM.TXT
                                                             

 210693  SPD.TXT
                                                             

 120038  SPD_MPS.TXT
                                                         

  75344  POW.TXT
                                                             

 150265  DIS.TXT
                                                             

 102699  CAD.TXT
                                                             

 147407  TOR.TXT
                                                             

1246035  GPS.TXT
                                                             

tries count _sd: 12
                                                          
[00:00:00.000,000] <info> app: Reading file 
                                   
 

                                                                            

                                                                              
[00:00:00.000,000] <error> app: ASSERTION FAILED at ..\..\..\..\..\..\external\f

intf\nrf_fprintf.c:67

Does anyone know on how to rectify it ?

Kind regards..

[Vidar Berg]

Hello,

Please check which ASSERT is triggered at line 67 in nrf_fprintf.c in your SDK version.

Best regards,

Vidar

[RixtronixLAB]

 BYTE line[1024];

Related with variable above ?

D:\nRF5_SDK_17.0.2_d674dde\components\libraries\util\nrf_assert.h

Line 103

#define ASSERT(expr)                                                          \
if (NRF_ASSERT_PRESENT)                                                       \
{                                                                             \
    if (expr)                                                                 \
    {                                                                         \
    }                                                                         \
    else                                                                      \
    {                                                                         \
        assert_nrf_callback((uint16_t)__LINE__, (uint8_t *)__FILE__);         \
    }                                                                         \
}

#endif

uint16_t and BYTE ?

Kind regards,

[Vidar Berg]

I'm not sure how you were able to build the code in the first place as you are only passing 1 argument to your nrf_fprintf() call. I checked the function declaration, and it seems to require at least 2:

You can use the NRF_LOG_RAW_INFO() macro if you want to print strings without the logger prefix.

[RixtronixLAB]

Hi Vidar,

Thanks for the reply,

We tried :

f_open(&fil, "HRM.TXT", FA_READ);
                                uint32_t bytes_written;    
                                /* Read all lines and display it */
                                while (f_gets( line, sizeof  line,   &fil))
                                NRF_LOG_INFO("data: %s",line);
                                        /* Close the file */
                        
                                NRF_LOG_INFO("Finished reading file.. \n \r\n");

                                f_close(&fil);

Output : 

 <DIR>   SYSTEM~1
                                                            

   6716  NORDIC.TXT
                                                          

  31700  RIXTRO.TXT
                                                          

 340020  HRM.TXT
                                                             

 234612  SPD.TXT
                                                             

 134173  SPD_MPS.TXT
                                                         

  84336  POW.TXT
                                                             

 166711  DIS.TXT
                                                             

 114309  CAD.TXT
                                                             

 164256  TOR.TXT
                                                             

1356104  GPS.TXT
                                                             

1;31mLogs dropped (294)
                                                  

0:00:00.000,000] <info> app: data: 
                                          

1;31mLogs dropped (294)
                                                  

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[00:00:00.000,000] <info> app: Finished reading file..