说明：  JLINKV8 Segger仿真器固件，非常好用，不支持修改序列号，在keil5 V5.14版本上验证可用。解决了之前很多版本，在keil5上提示升级或烧写时报错，关于固件烧写请参考网络文档。
(JLINKV8 Segger emulator firmware, very easy to use, not support amending the serial number on the keil5 V5.14 version verification is available. Prior to solve a lot of versions, on keil5 when prompted to upgrade or programming error, refer to the network on firmware programming documentation.)