By STM32 operating W5500 to achieve UDP loopback function, which uses the well-optimized to achieve good underlying transmit and receive functions.

W5500_UDP_LoopBack
..................\CMSIS
..................\.....\core_cm3.c
..................\.....\core_cm3.h
..................\.....\stm32f10x.h
..................\.....\system_stm32f10x.c
..................\.....\system_stm32f10x.h
..................\RVMDK
..................\.....\JLinkLog.txt
..................\.....\JLinkSettings.ini
..................\.....\list
..................\.....\....\Project.map
..................\.....\....\startup_stm32f10x_md.lst
..................\.....\output
..................\.....\......\core_cm3.crf
..................\.....\......\core_cm3.d
..................\.....\......\core_cm3.o
..................\.....\......\delay.crf
..................\.....\......\delay.d
..................\.....\......\delay.o
..................\.....\......\led.crf
..................\.....\......\led.d
..................\.....\......\led.o
..................\.....\......\main.crf
..................\.....\......\main.d
..................\.....\......\main.o
..................\.....\......\misc.crf
..................\.....\......\misc.d
..................\.....\......\misc.o
..................\.....\......\Project.axf
..................\.....\......\Project.build_log.htm
..................\.....\......\Project.hex
..................\.....\......\Project.htm
..................\.....\......\Project.lnp
..................\.....\......\Project.sct
..................\.....\......\startup_stm32f10x_md.d
..................\.....\......\startup_stm32f10x_md.o
..................\.....\......\stm32f10x_gpio.crf
..................\.....\......\stm32f10x_gpio.d
..................\.....\......\stm32f10x_gpio.o
..................\.....\......\stm32f10x_it.crf
..................\.....\......\stm32f10x_it.d
..................\.....\......\stm32f10x_it.o
..................\.....\......\stm32f10x_rcc.crf
..................\.....\......\stm32f10x_rcc.d
..................\.....\......\stm32f10x_rcc.o
..................\.....\......\stm32f10x_spi.crf
..................\.....\......\stm32f10x_spi.d
..................\.....\......\stm32f10x_spi.o
..................\.....\......\stm32f10x_tim.crf
..................\.....\......\stm32f10x_tim.d
..................\.....\......\stm32f10x_tim.o
..................\.....\......\stm32f10x_usart.crf
..................\.....\......\stm32f10x_usart.d
..................\.....\......\stm32f10x_usart.o
..................\.....\......\system_stm32f10x.crf
..................\.....\......\system_stm32f10x.d
..................\.....\......\system_stm32f10x.o
..................\.....\......\usart.crf
..................\.....\......\usart.d
..................\.....\......\usart.o
..................\.....\......\w5500.crf
..................\.....\......\w5500.d
..................\.....\......\w5500.o
..................\.....\......\w5500_udp.crf
..................\.....\......\w5500_udp.d
..................\.....\......\w5500_udp.o
..................\.....\Project.uvgui.Administrator
..................\.....\Project.uvgui_Administrator.bak
..................\.....\Project.uvopt
..................\.....\Project.uvproj
..................\.....\Project_Project.dep
..................\.....\Project_Target 1.dep
..................\.....\Project_uvopt.bak
..................\.....\Project_uvproj.bak
..................\StartUp
..................\.......\startup_stm32f10x_hd.s
..................\.......\startup_stm32f10x_ld.s
..................\.......\startup_stm32f10x_md.s
..................\STMLib
..................\......\inc
..................\......\...\misc.h
..................\......\...\stm32f10x_adc.h
..................\......\...\stm32f10x_bkp.h
..................\......\...\stm32f10x_can.h
..................\......\...\stm32f10x_cec.h
..................\......\...\stm32f10x_crc.h
..................\......\...\stm32f10x_dac.h
..................\......\...\stm32f10x_dbgmcu.h
..................\......\...\stm32f10x_dma.h
..................\......\...\stm32f10x_exti.h
..................\......\...\stm32f10x_flash.h
..................\......\...\stm32f10x_fsmc.h
..................\......\...\

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