In file simpleBLEPeripheral.c (C:\Texas Instruments\BLE-CC2540-1.1a\Projects\ble\SimpleBLEPeripheral\Source) there appears to be a typo around line 456:
if ( SBP_PERIODIC_EVT )
It seems what is intended is:
if ( SBP_PERIODIC_EVT_PERIOD )
No biggie, but the whole dev kit, samples and documentation are so professional, perhaps TI would like to strive for perfection :)
Richard