在KEIL中用JTAG仿真出错：error：cannot load driver".....JL2CM3.dll" 时的解决方法
报错：
Error:Cannot load driver 'c:\Keil_v5\ARM\Segger\JL2CM3.dll".
Possible Reasons:
- Driver DLL could not be found in the specified path
- Driver DLL requires additional DLL's which are not installed
- Required Hardware Drivers are not installed
将C:\Keil_v5\ARM\Segger添加到系统环境变量解决