All Questions
8 questions
1
vote
1
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138
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Connecting two W5500 via UDP results in PHY link off
I want to connect two STM32F4 and to communicate via UDP. At the moment I only want to send data from one to another mcu. I have tested tx and rx communication separately with PC - python scripts and ...
- 109
1
vote
1
answer
247
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Ethernet PHY design query: Compatibility of DP83848QSQ/NOPB with STM32F407VET6 and pin configuration concerns
I'm relatively new to Ethernet PHY design and currently working on a project where I've chosen the DP83848QSQ/NOPB PHY and plan to connect it to the STM32F407VET6 microcontroller.
However, I've ...
user362241
0
votes
1
answer
81
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Inductor without inductance
I am trying to find the right component for this inductor. It doesn't show inductance which is bit confusing for me. Which part should I pick for this if I wanted to use it on my PCB?
it's from
NUCLEO-...
1
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0
answers
188
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LAN8742a autonegotiation gives a half-duplex mode result when it's espected to be full-duplex mode result
I was testing an ethernet based project PCB that uses LAN8742a xip (lan xip seller link) and a stm32f207zg microcontroller (mcu seller link). We are having some issues when we increase the stress ...
- 871
0
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2
answers
3k
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How to use Gigabit Ethernet with MCU?
I am new at ethernet and it comes complex. Trying to use STM32's RMII interface with switch. I just want to see at IT's switch gigabit port. I don't want to transfer data gigabit, it doesn't matter. ...
1
vote
1
answer
798
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Crystal Oscillator for STM32F407 with LAN8720
I'm planning to build a custom board with STM32F407 chip for a system where I also need Ethernet connectivity.
I'm planning to connect this board to a LAN8720 with breakout board from Smart ...
- 189
2
votes
1
answer
4k
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How can I configure PHY in cubeMX on own board?
I made a customboard using STM32f217VET microcontroller and KSZ8081 PHY (builtin pull-up resistors for TXP TXM and RXP RXM). I Configured my board to use MII mode, anda I used a 25MHz oscillator to do ...
- 161
0
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2
answers
465
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Inverting REFCLOCK of Ethernet PHY
A few years ago I had to design a board that uses the NXP LPC1769 MCU and had Ethernet connectivity. I was in need of a PHY chip and the LAN8720 was choosen.
During design however, I noticed that NXP ...
- 1,800