Forum Discussion

yzhan286's avatar
yzhan286
Icon for New Contributor rankNew Contributor
6 years ago

三速以太网IP核接收路径的用户侧少了一个字节

我在使用intel三速以太网IP核时，按照用户手册编写了MAC的配置模块，UDP发送模块和UDP接收模块，目前的发送模块已经测试成功，但是接收模块出现了问题，就是接收模块在对MAC的用户侧(ff_rx_data)数据解析时不成功，为了分析原因，用quartus II中的SignalTap抓取SignalTap抓取ff_rx_data信号，发现数据包的头部少了一个字节，导致了后面所有的数据错位。 ...
Deshi_Intel's avatar
Deshi_Intel
Icon for Regular Contributor rankRegular Contributor
6 years ago

HI,

Sorry, I sent the message without completing below update.

Couple debug suggestion

  1. Align packet headers to 32-bit boundary is enabled
  • Did you configure register "tx_cmd_stat" and "rx_cmd_stat" correctly as your earlier screen shot shown "comment out" ?
  1. Align packet headers to 32-bit boundary is disabled
  • Just for debug purpose to see if it helps

Thanks.

Regards,

dlim