在你的工程右键，更改C/C++ builder的lib，把板级支持包的两个.a文件添加进去 环境：xilinx SDK 2018.2
/proj/epdsw/gnu/mb_gnu/src/gcc/libgloss/microblaze/xil_printf.c:163: undefined reference to `outbyte' /proj/epdsw/gnu/mb_gnu/src/gcc/libgloss/microblaze/xil_printf.c:260: undefined reference to `outbyte' /proj/epdsw/gnu/mb_gnu/src/gcc/libgloss/microblaze/xil_printf.c:233: undefined ...