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Changing the value of Characteristics 5 in simpleBLEPeripheral

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Posted by zz zhang

on Apr 12 2012 22:37 PM

In short, I want to change the value of Characteristics 5 in simpleBLEPeripheral. The following is what I did in simpleGATTprofile.c:

1. simpleProfileChar5Props=GATT_PROP_READ | GATT_PROP_WRITE;

2. // Characteristic Value 5
      {
        { ATT_BT_UUID_SIZE, simpleProfilechar5UUID },
        GATT_PERMIT_AUTHEN_READ|GATT_PERMIT_AUTHEN_WRITE,
        0,
        simpleProfileChar5
      },

3.//Add the following codes to simpleProfile_WriteAttrCB()

    case SIMPLEPROFILE_CHAR5_UUID:
          VOID osal_memset( pAttr->pValue, *pValue, SIMPLEPROFILE_CHAR5_LEN );
        break;

But the result I did not expect. the default value of Char5 is [01,02,03,04,05].

when I use BTool to write a new value (eg. [06,07,08,09,00] ), and read Char5 again, the display is [06,06,06,06,06] .

what am I missing?

All Replies

Posted by Joakim Lindh

on Apr 13 2012 03:08 AM

Genius13370 points

Hi,

Maybe I'm wrong here but try removing the *,

VOID osal_memset( pAttr->pValue, pValue, SIMPLEPROFILE_CHAR5_LEN );

Posted by zz zhang

on Apr 17 2012 21:42 PM

Verified Answer

Verified by zz zhang

Intellectual320 points

I try to removeg the * as you said. And the build message I got is Error[Pe167]: argument of type "unsigned char *" is incompatible with parameter of type "uint8" .

But thank you all the same.

My solution shows as follows,

          uint8 *pCurBuffer = (uint8 *)pAttr->pValue;
          uint8 i;
          for( i = 0; i < SIMPLEPROFILE_CHAR5_LEN ; i++ )
          {
            *( pCurBuffer+i ) = pValue[i];
          }