Description

I can't ping my computer successful with w5100.

Steps to reproduce the issue

1.using the example
2.change Makefile
1)BOARD ?= stm32f4discovery
2)# Add w5100 to use
USEMODULE += w5100
3.compile and burning
4.The hardware USES the default spi1 configuration spi and PA0 to configure spi_cs.I am not connected to spi_evt, it is only configured as PA1.

Expected results

Ping6 successfully used the serial port on my computer

Actual results

If I use ifconfig:
2019-10-21 03:19:33,061 - INFO # ifconfig
2019-10-21 03:19:33,062 - INFO # Iface 6 HWaddr: 58:6B:32:14:0D:53
2019-10-21 03:19:33,068 - INFO # L2-PDU:1500 MTU:1500 HL:64 RTR
2019-10-21 03:19:33,069 - INFO # RTR_ADV
2019-10-21 03:19:33,073 - INFO # Source address length: 6
2019-10-21 03:19:33,074 - INFO # Link type: wired
2019-10-21 03:19:33,078 - INFO # inet6 addr: fe80::5a6b:32ff:fe14:d53 scope: local VAL
If I ping6 myaddr:
2019-10-21 03:24:12,390 - INFO # 3 packets transmitted, 0 packets received, 100% packet loss

And when I use ping6, the w5100 spi light flashes, but the network send and receive light does not

Versions

Operating system: Linux
Build environment: gcc version 7.4.0