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Original question:

CC2530: At 2v, CC2530 factory resets

CC2530: At 2v, CC2530 factory resets

Jack Loop
Guru 17870 points

Part Number: CC2530
Other Parts Discussed in Thread: Z-STACK

Hi,

Since there hasn't been a Z-Stack 3.0.2 release yet, I wanted to ask what working code I could add to resolve the below issue:

There is a bug where some items in NV memory are deleted and set to their default value if the device is booted or running at a voltage close to VDD_MIN_NV. This is because there was no check done to confirm that the NV Item needed to be initialized to the default value. A fix is being formulated to add an NV check during initialization to set the NV item to the default value only if it was actually initialized and did not exist previously.

Is there any code that would serve as a quick fix for this problem?

  • 0
    TI__Mastermind 35070 points

    Hi Jack,

    Please find Z-Stack 3.0.2 here: http://www.ti.com/tool/Z-STACK

    According to the release notes, the issue you mentioned has been addressed.



    Regards,
    Toby

  • 0 in reply to Toby
    Guru 735695 points
    Is this issue fixed in Z-Stack 3.0.2? Can you point where the modification source code is in new Z-stack 3.0.2 to fix this issue?
  • 0 in reply to Toby
    Guru 17870 points

     Hi. Thanks for the link. Is there going to be a wiki page for proposed fixes like: http://processors.wiki.ti.com/index.php/Zigbee_Known_Issues_and_Proposed_Fixes?

  • 0 in reply to YiKai Chen
    TI__Mastermind 35070 points

    Hi YK,

    The fixes can be seen by checking the differences between osal_nv.c and OnBoard.c:

    osal_nv.c:

    Z-Stack 3.0.1 Z-Stack 3.0.2
    N/A 
    #include "OnBoard.h"
    		 
    #define OSAL_NV_CHECK_BUS_VOLTAGE  HalAdcCheckVdd(VDD_MIN_NV)
    		 
    #define OSAL_NV_CHECK_BUS_VOLTAGE  OnBoard_CheckVoltage()
    		 
    if ( !OSAL_NV_CHECK_BUS_VOLTAGE )
{
      return NV_OPER_FAILED;
}
    		 
    if ( ( hotItem( id ) < OSAL_NV_MAX_HOT ) && ( !OSAL_NV_CHECK_BUS_VOLTAGE ) )
{
     return NV_OPER_FAILED;
}

    OnBoard.c:

    Z-Stack 3.0.1 Z-Stack 3.0.2
    N/A 
    #include "hal_adc.h"
    N/A 
    /******************************************************************************
* LOCAL FUNCTIONS
*/
// function pointer for low voltage warning callback
static void (*gpLowVoltageWarning)( uint8 voltLevel ) = (void*) NULL;
    N/A 
    /*********************************************************************
 *                  Low Voltage Protectiion Support
 *********************************************************************/

/*********************************************************************
 * @fn      RegisterVoltageWarningCB
 *
 * @brief   Register Low Voltage Warning Callback
 *
 * @param   pVoltWarnCB - fundion pointer of the callback
 *
 * @return  none
 *********************************************************************/
void RegisterVoltageWarningCB( void (*pVoltWarnCB)(uint8) )
{
  gpLowVoltageWarning = pVoltWarnCB;
}

/*********************************************************************
 * @fn      OnBoard_CheckVoltage
 *
 * @brief   Check voltage and notify the callback of the status
 *
 * @param   none
 *
 * @return  TRUE  - The voltage is good for NV writing
 *          FALSE - The voltage is not high enough for NV writing
 *********************************************************************/
bool OnBoard_CheckVoltage( void )
{
  uint8 voltageMeasured;
  uint8 howGood;

  voltageMeasured = HalAdcCheckVddRaw();

  if ( voltageMeasured > VDD_MIN_GOOD )
  {
    howGood = VOLT_LEVEL_GOOD;
  }
  else if ( voltageMeasured > VDD_MIN_NV )
  {
    howGood = VOLT_LEVEL_CAUTIOUS;
  }
  else
  {
    howGood = VOLT_LEVEL_BAD;
  }
    
  if ( gpLowVoltageWarning )
  {
    if ( howGood < VOLT_LEVEL_GOOD )
    {
      gpLowVoltageWarning( howGood );
    }
  }

  return ( howGood > VOLT_LEVEL_BAD );
}

    Regards,

    Toby

  • 0 in reply to Jack Loop
    TI__Mastermind 35070 points
    Hopefully there won't be any issues that arise.
    If there are, we will definitely take note of them, although it may not be specifically in the form of a wiki.
  • 0 in reply to Toby
    Guru 735695 points
    Thanks Toby.