为什么CC2640R2F snv一读写就死机？

simple_peripheral工程，预编译OSAL_SNV=1;然后直接使用osal_snv_read();osal_snv_write();操作，
snvState = osal_snv_read(0x81,BLE_DEVICENAME_LEN,(uint8_t *)SysInfor.DeviceName);//获取设备名称
if(snvState != SUCCESS)
[//没有保存的设备名
SysInfor.DeviceName = BLE_DEVICENAME;
snvState = osal_snv_write(0x81, BLE_DEVICENAME_LEN,(uint8_t *)SysInfor.DeviceName);//保存到snv
]
snvState = osal_snv_read(0x82,4,(uint8_t *)SysInfor.password);//获取蓝牙密码
if(snvState != SUCCESS)
[//没有保存的密码
SysInfor.password = BLE_PASSWORD;
snvState = osal_snv_write(0x82,4,(uint8_t *)SysInfor.password);//保存到snv
]
求助