Hello Evan,
I was waiting to click on the resolve button before testing the workaround in the final application. I can confirm the workaround, keeping the power down pin not asserted when doing the reset cycle (with pin or with hardware reset bit), waiting…
Part Number: DP83826E Tool/software: Hi Team,
We are designing a PoE passthrough circuit. Could you help to comment:
1. Is the termination circuit for the PHY correct?
2. Do we need to add any chips to avoid data attenuation. If considering the input…
Part Number: DP83826E Tool/software: I have similar issue to an earlier thread with this same part marking information. DP83826E with the above-mentioned marking information does not link up. The Link LED stays off. RX packets seem fine. TX packets are…
Part Number: DP83826E Tool/software: MSE/SNR can be determined via Reg 0x225. Please note that this is an extended register and needs 4-step extended register access to read appropriate values.
Once the hex value is obtained, convert to decimal and compare…
We have found the issue. In this circuit it was a pulldown on the reset signal with only 10k. The internal pullup of the PHY is also 10k. So while the CPU pin mux is not yet configured the half voltage level was on the reset signal. Changing the resistor…
Hi Louis,
This is strange, I expect some link down or some other status bit difference between working/failing setups.
Clarifying on the loopback tests:
For MII loopback, no link partner is required. After setting loopback, send data from DP83826's MAC…
Part Number: DP83826E Tool/software: Hi,
Hardware Bootstraps pins are sampled at power up or hard reset.
We don’t know which point of VDDA3V3/RST_N (?) should be used to judge the strap value?
Please provide the definition of setup time/hold…
Part Number: DP83826E Hi,teams,
I have some questions that I would like to be answered by teams.
a pply to EtherCAT port.PHY strap configuration RMII mode ,speed 100M,Full Duplex and auto negotiation enable.It works with a servo connection,but encounter…
Part Number: DP83826E Tool/software: I would like to know if it i permissible to have only one MDI channel namely the RX +/- with pin polarity swap.
The TX +/- channel is fine. I like to always route my pairs without vias. The run is extremely short…
Hi Chen,
Here is the section I choose for the signal path:
\
I think it might be software version dependence. Could customer update the software for TekExpress? It should be free to update the software.
--
Regards,
Hillman Lin