Use a makefile development at first, then found using CubeMX can be generated with a makefile project template, but the automatically generated makefile file lists all. C file, so I feel very trouble, he changed to ${shell find./(*. C)} also is to let his own to find all the files, this sentence is from a great god for generic makefile copy, change after an error, said can't find the structure definition (a lot of structure said he can't find), must all listed, and the great god can use the template engineering, strange ah cry