CC2745R10-Q1: syscfg中广播配置生成数据异常确认

May I ask what you are trying to implement? Advertisements have a set size as per the BLE specs, including flags and control bits. Legacy Advertisements have a total limit of 31 bytes, where 10 bytes are allocated for overhead (flags and control bits). Extended advertisements have a limit of 254 bytes in a single packet, with a total chained packet limit of 1650 bytes. 

So to answer your question, the 0x00 padding is necessary as per the specs in order to fit the 31 byte size. I do believe you choose what to pad with, but you would have to pad the device name with something so that the packet size follows the specs.