DP83640芯片配置为100兆、全双工模式,FPGA中与之交互数据的三速以太网IP核在同时收发数据时,偶尔会报CRC错,这个错误原因是因为【该错误帧帧头中帧长度字段值(比如800)与该帧实际字节数(如21)不一致】,那么这种不一致是因为什么而导致的呢
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您好,
为更加有效地解决您的问题,我已将您的问题发布在E2E英文技术论坛上,请更了解这款芯片的TI资深工程师为您解答,一旦得到回复后我会立即回复给您。帖子链接如下,您也可以关注帖子,以方便查看或追问后续疑问。
英文论坛对应子论坛链接:https://e2e.ti.com/support/interface-group/interface/f/interface-forum/1214976/dp83640-crc-error
已收到E2E英文工程师回复,我尝试翻译如下:
PHY在不修改任何内容的情况下通过所有packets ,因此这将是第2层或更高级别的问题。可能是FPGA或link partner的问题,您可以提供link partner的型号吗?
The PHY passes all packets through without modifying anything so this would be a layer 2 or higher question. Maybe better directed at the FPGA team, or whomever the link partner is. Let me know if you agree.