1.Warning: L6305W: Image does not have an entry point. (Not specified or not set due to multiple choices.)
在Options for Target选项的Linker---Misc controls加入入口地址：--entry Reset_Handler
2. Error: L6915E: Library reports error: __use_no_semihosting was requested, but __user_initial_stackheap was referenced
对于这个问题，我在sct文件中添加了两行就ok了，原因正在查找。ARM_LIB_HEAP 0x2000D000 EMPTY 0x00000200 {} ARM_LIB_STACK 0x2000E000 EMPTY -0x00000200 {}
对于后半句，在MDK的编译器手册中找到了
