STM32F407 LWIP扩展例程网络实验7 NETCONN_UDP实验 实验失败

lmagine

NETCONN_UDP实验中 串口发送数据显示函数错误，并且无法接收到网络调试助手发送的数据

求解决办法!!!!!!!!!!!!!!!!!!!!!!!!!


编译过程中也出现如下问题：
startup_stm32f40_41xxx.s: Error: A1067E: Output file specified as '..\CORE\startup_stm32f40_41xxx.s', but it has already been specified as '..\obj\startup_stm32f40_41xxx.o'
startup_stm32f40_41xxx.s: error: A1023E: File "__UVISION_VERSION SETA 514" could not be opened: No such file or directory

lmagine

只需在Device中选定你所用的芯片，如果显示Device已经选定过，还出现该错误，就更新一下