What a starting address of Row 0 of Flash ?

[urchc_1533771]

I see this assignments :

   

 #define USER_SFLASH_ROW_SIZE            (128u) // SFlash row size for 128KB flash BLE device. 
 #define USER_SFLASH_ROW0_ADDRESS        (0x0FFFF200u) /* Starting address of Row0 user SFlash row for 128KB PSoC 4 BLE device */ 

   

and comment that first 6 bytes is used for storing of BLE address so I need start from 0x0FFFF200u + 6 ?

[Anonymous · Accepted solution]

SFLASH can be written only row-wise. As first 6 bytes of row 0 can be used for BLE public device address, it is recommended that you write from row 1 onwards. You can use the API CySysSFlashWriteUserRow for this.

[urchc_1533771]

You  want to say that because you used 6 bytes in row 0 I can`t use it ? What a function use it ?

[Anonymous]

If you are not really concerned about the device address which is used for advertising, then you can use Full Row 0 also for your custom data. During production, if you want to give individual address to each device, then that can also be done using SFLASH update tool. 

[urchc_1533771]

I asked  What a function use this memory ?

[Anonymous]

SFLASH can be used for loading the BLE public device address. See line no: 1557 in CYBLE_eventHandler.c file:

   

if(CyBle_IsDeviceAddressValid(cyBle_sflashDeviceAddress) != 0u)
            {
                (void) CyBle_SetDeviceAddress(cyBle_sflashDeviceAddress);

   

                ------------------------------------------------------------------------

   

            }

[urchc_1533771]

thanks !