NV RESTORE ISSUE for CC2538

If you try to following code, does it work correctly?

#define nv_test_id 0x0401

uint16 test_write= 0x1234;

uint16 test_read=0x0;

osal_nv_item_init(nv_test_id, 1, NULL);

osal_nv_write(nv_test_id, 0, 1, &test_write);

osal_nv_read(nv_test_id, 0, 1, &test_read);

It is ok because before read we write the value to the ID. but sometime not all the time it will go to 0xFF because we only read at the startup time.

Do you see this issue when you do debug?

it can not find at the debugger state, because after the reset, the mcu will not sync with the debugger when I used the system_reset. but if I just reset the code, it can not change.

I might not understand your problem well. Can you elaborate again?

/******************************************************************************
* @fn main
*
* @brief First function called after startup.
*
* @param None
*
* @return Don't care
*/
int main( void )
{
// Turn off interrupts
osal_int_disable( INTS_ALL );/*before this 2.2ms*/


// Initialization for board related stuff such as LEDs
HAL_BOARD_INIT();/*this function is 550us*/


// Initialize board I/O

InitBoard( OB_COLD );/*very short time, it can not measure from Oscilloscope*/


// Initialze HAL drivers

HalDriverInit();/*200us*/

//GPIOPinTypeGPIOOutput(GPIO_A_BASE, GPIO_PIN_0);
//GPIOPinWrite(GPIO_A_BASE, GPIO_PIN_0, GPIO_PIN_0);

// Initialize NV System
#ifdef NV_RESTORE
//osal_nv_init(NULL);/*this function excute time is 21.85ms*/

#endif

osal_nv_item_init(WTM_IN_TIMAC_OR_ZSTACK_MODE, 1, NULL);

osal_nv_read(WTM_IN_TIMAC_OR_ZSTACK_MODE, 0, 1, &Timac_Zstack_mode);


if(Timac_Zstack_mode==0xFFU)
{
Timac_Zstack_mode=0U;
osal_nv_item_init(WTM_IN_TIMAC_OR_ZSTACK_MODE, 1, NULL);
osal_nv_write(WTM_IN_TIMAC_OR_ZSTACK_MODE, 0, 1, &Timac_Zstack_mode);
}
// Initialize the MAC
if(Timac_Zstack_mode==0U)
{
MAC_Init();/*some time it is very long time like more than 25ms, normal tempertature is 540us*/

}
else
{
ZMacInit();//22ms before /*can not open this because in high temperature test the init time is 80ms*/
}
/*50ms*/





// Determine the extended address
zmain_ext_addr();

#if defined ZCL_KEY_ESTABLISH
// Initialize the Certicom certificate information.
zmain_cert_init();
#endif

// Initialize basic NV items
if(Timac_Zstack_mode!=0U)
{
zgInit();//consume 51ms/***********************************************//*will not save the NV items when go into the ISP and exit*//*if masked this, the zstack tx/rx not ok*/
}

#ifndef NONWK
// Since the AF isn't a task, call it's initialization routine
afInit();
#endif

if(Timac_Zstack_mode==0U)
{
//tasksArr = tasksArr_Timac;
tasksCnt = tasksCnt_Timac;
}
else
{
//tasksArr = tasksArr_Zstack;
tasksCnt = tasksCnt_zstack;
}


/*50ms*/
// Initialize the operating system
osal_init_system();
/*50ms*/

#if 1
if(Timac_Zstack_mode==0U)
{


MAC_READ_CHIP_IEEE_ADDR(msa_ExtAddr);

network_init_check();



/* Restore the network settings of the Device */
MAC_NvDeviceRestore(&msa_ExtAddr,
&msa_PanId,
&msa_AssociateReq.coordAddress.addr.shortAddr,
&msa_DevShortAddr,
#ifdef FEATURE_MAC_SECURITY
&msa_NumOfSecuredDevices,
&msa_deviceTable,
&msa_keyTable);
#else
NULL,
NULL,
NULL);
#endif

}



#endif

osal_nv_item_init(WTM_SENSOR_ID, 1, NULL);
osal_nv_read(WTM_SENSOR_ID, 0, 1, &sensor_id);

#if 1
#ifdef OTA_CLIENT
#ifdef TIMAC
/* Setup Keyboard callback */
HalKeyConfig(MSA_KEY_INT_ENABLED, MSA_Main_KeyCallback);
/* Start polling if callback function is setup*/
osal_set_event(Hal_TaskID, HAL_KEY_EVENT);// it need this if MSA_KEY_INT_ENABLED==TRUE//FOR TEST
#endif
#endif
#ifdef OTA_CLIENT
#ifdef NV_RESTORE
//osal_set_event(MSA_TaskId, MSA_NV_RESTORE_EVENT);
#endif
#endif
#endif
// Allow interrupts
osal_int_enable( INTS_ALL );//for test

SysTickSetup();

// Final board initialization
InitBoard( OB_READY );

/* Display the device info on the LCD */
#ifdef LCD_SUPPORTED
//zmain_dev_info();
//zmain_lcd_init();
#endif

//#ifdef WDT_IN_PM1
#ifndef WATCHDOG_DEBUG_DISABLE

/* If WDT is used, this is a good place to enable it. */

if(Timac_Zstack_mode==0U)
{

WatchDogEnable( WATCHDOG_INTERVAL_32768 );
//osal_set_event( ZDAppTaskID, LOADCONTROL_WDT_CLEAR );
}

#endif
//#endif




osal_start_system(); // No Return from here

return 0; // Shouldn't get here.
} // main()


this is my main function and some time read NV ID WTM_SENSOR_ID:

osal_nv_item_init(WTM_SENSOR_ID, 1, NULL);
osal_nv_read(WTM_SENSOR_ID, 0, 1, &sensor_id);

or

osal_nv_item_init(WTM_IN_TIMAC_OR_ZSTACK_MODE, 1, NULL);

osal_nv_read(WTM_IN_TIMAC_OR_ZSTACK_MODE, 0, 1, &Timac_Zstack_mode);

the value of sensor_id and Timac_Zstack_mode will be 0xFF, I means sometime not every time.
It seems the flash is erased and it is go into the UNIT state.

BR,

I don't think it's good to do NV read/write in main(). I suggest you to do this in application init.

Dear YiKai,

thank you for your reply. because in normal mode we used TIMAC initialization for our system, and for the OTA we used the ZStack initialization, so we just can used the NV read/write in the main() for the initialization control.

I test the following red codes in main function and it works fine too.

#define nv_test_id 0x0401
uint8 test_write= 0x78;
uint8 test_read=0x0;

int main( void )
{
  // Turn off interrupts
  osal_int_disable( INTS_ALL );

  // Initialization for board related stuff such as LEDs
  HAL_BOARD_INIT();

  // Initialize board I/O
  InitBoard( OB_COLD );

  // Initialze HAL drivers
  HalDriverInit();

  // Initialize NV System
  osal_nv_init( NULL );

  //YK test NV
 
  osal_nv_item_init(nv_test_id, 1, NULL);
  osal_nv_read(nv_test_id, 0, 1, &test_read);
  osal_nv_write(nv_test_id, 0, 1, &test_write);
  osal_nv_read(nv_test_id, 0, 1, &test_read);

  // Initialize the MAC
  ZMacInit();