The demo project for STM32 with LAN8720. The Ping function is OK.

STM32\ETH_LwIP\Libraries\CMSIS\Core\CM3\core_cm3.c
.....\........\.........\.....\....\...\core_cm3.h
.....\........\.........\.....\....\...\startup\arm\startup_stm32f10x_cl.s
.....\........\.........\.....\....\...\.......\...\startup_stm32f10x_hd.s
.....\........\.........\.....\....\...\.......\...\startup_stm32f10x_ld.s
.....\........\.........\.....\....\...\.......\...\startup_stm32f10x_md.s
.....\........\.........\.....\....\...\.......\gcc\startup_stm32f10x_cl.s
.....\........\.........\.....\....\...\.......\...\startup_stm32f10x_hd.s
.....\........\.........\.....\....\...\.......\...\startup_stm32f10x_ld.s
.....\........\.........\.....\....\...\.......\...\startup_stm32f10x_md.s
.....\........\.........\.....\....\...\.......\iar\startup_stm32f10x_cl.s
.....\........\.........\.....\....\...\.......\...\startup_stm32f10x_hd.s
.....\........\.........\.....\....\...\.......\...\startup_stm32f10x_ld.s
.....\........\.........\.....\....\...\.......\...\startup_stm32f10x_md.s
.....\........\.........\.....\....\...\stm32f10x.h
.....\........\.........\.....\....\...\system_stm32f10x.c
.....\........\.........\.....\....\...\system_stm32f10x.h
.....\........\.........\.....\....\Documentation\CMSIS_Core.htm
.....\........\.........\.....\License.doc
.....\........\.........\STM32F10x_StdPeriph_Driver\inc\misc.h
.....\........\.........\..........................\...\stm32f10x_adc.h
.....\........\.........\..........................\...\stm32f10x_bkp.h
.....\........\.........\..........................\...\stm32f10x_can.h
.....\........\.........\..........................\...\stm32f10x_crc.h
.....\........\.........\..........................\...\stm32f10x_dac.h
.....\........\.........\..........................\...\stm32f10x_dbgmcu.h
.....\........\.........\..........................\...\stm32f10x_dma.h
.....\........\.........\..........................\...\stm32f10x_exti.h
.....\........\.........\..........................\...\stm32f10x_flash.h
.....\........\.........\..........................\...\stm32f10x_fsmc.h
.....\........\.........\..........................\...\stm32f10x_gpio.h
.....\........\.........\..........................\...\stm32f10x_i2c.h
.....\........\.........\..........................\...\stm32f10x_iwdg.h
.....\........\.........\..........................\...\stm32f10x_pwr.h
.....\........\.........\..........................\...\stm32f10x_rcc.h
.....\........\.........\..........................\...\stm32f10x_rtc.h
.....\........\.........\..........................\...\stm32f10x_sdio.h
.....\........\.........\..........................\...\stm32f10x_spi.h
.....\........\.........\..........................\...\stm32f10x_tim.h
.....\........\.........\..........................\...\stm32f10x_usart.h
.....\........\.........\..........................\...\stm32f10x_wwdg.h
.....\........\.........\..........................\src\misc.c
.....\........\.........\..........................\...\stm32f10x_adc.c
.....\........\.........\..........................\...\stm32f10x_bkp.c
.....\........\.........\..........................\...\stm32f10x_can.c
.....\........\.........\..........................\...\stm32f10x_crc.c
.....\........\.........\..........................\...\stm32f10x_dac.c
.....\........\.........\..........................\...\stm32f10x_dbgmcu.c
.....\........\.........\..........................\...\stm32f10x_dma.c
.....\........\.........\..........................\...\stm32f10x_exti.c
.....\........\.........\..........................\...\stm32f10x_flash.c
.....\........\.........\..........................\...\stm32f10x_fsmc.c
.....\........\.........\..........................\...\stm32f10x_gpio.c
.....\........\.........\..........................\...\stm32f10x_i2c.c
.....\........\.........\..........................\...\stm32f10x_iwdg.c
.....\........\.........\..........................\...\stm32f10x_pwr.c
.....\........\.........\..........................\...\stm32f10x_rcc.c
.....\........\.........\..........................\...\stm32f10x_rtc.c

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