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DP83TC811S-Q1: 配合DP83822H 纯硬件实现100base-T1与100base-TX转换

Part Number: DP83TC811S-Q1
Other Parts Discussed in Thread: DP83TC811EVM, USB-2-MDIO, MSP430F5529, DP83822H


83TC811配置.xlsxLD2021-PMMS-SYYN-V1.1.pdf

我参照DP83TC811EVM 设计了百兆车载以太网和标准以太网的转换电路,硬件电路图详见附件PDF。

我需要让电路默认启动就能实现转换,不通过MDC/MIDO口去配置。启动电路配置详见附件EXCEL。

目前测试网络不通,两个芯片的外部25M晶振确认OK, DP83822的RX_CLK有2.5MHz输出,但是DP83TC811的RX_CLK没有任何输出。

帮忙审核一下,是设计和配置有问题。