用IAR4.21編譯，總報(bào)兩個(gè)錯(cuò)： Error[e46]: Undefined external "xReadCH375Cmd" referred in main ( D:\下位機(jī)軟件\Debug\Obj\main.r90 ) Error[e46]: Undefined external "xReadFromExtBuf" referred in CH375SEC ( D:\下位機(jī)軟件\Drivers\CH375HFJ.R90 ) 用的庫(kù)是FILELIBJ_V4下面的CH375HFJ.R90，這是什么問(wèn)題呢？