cc3220sf唯一芯片id读取问题

下面是代码,无法读取,请问要怎样正确

_u8 macAddressVal[SL_MAC_ADDR_LEN];
_u16 macAddressLen = SL_MAC_ADDR_LEN;
_u16 ConfigOpt = 1;
int mac=0;
sl_NetCfgGet(SL_NETCFG_MAC_ADDRESS_GET,&ConfigOpt,&macAddressLen,(_u8 *)macAddressVal);

user6224149：

uniflash可以获取这个值

Viki Shi：

读取MAC地址就是sl_NetCfgGet，代码如下：

_u8 macAddressVal[SL_MAC_ADDR_LEN];
_u16 macAddressLen = SL_MAC_ADDR_LEN;
_u16 ConfigOpt = 0;
sl_NetCfgGet(SL_NETCFG_MAC_ADDRESS_GET,&ConfigOpt,&macAddressLen,(_u8 *)macAddressVal);