About DMårt

DMårt · 2024-04-18

I'm buildning my own computer by using STM32MP151AAC3.I'm going to draw lines for the HDMI connector. I have one question: Can I transfer sound via the HDMI cable? For example if I run OpenSTLinux onto the STM32MP151AAC3 processor, and then I connect...

DMårt · 2024-04-09

Hi!Are there any RMGII routing guidelines for the STM32MP151XXX series that are available for use?I have a Realtek RTL8211F-CG Ethernet PHY and I don't know how long the RX and TX lines should be.

DMårt · 2024-04-02

Hi!I was recommended to use the pre-built basic start-up projects for the STM32MP series, instead of buildning my own from scratch.Solved: Re: Why are the DDR_DQ signals mixed in unsorted o... - STMicroelectronics CommunityThe project files are Altiu...

DMårt · 2024-03-24

I just saw this. It's from STM32MP157 discovery board.Notice that DQ9 is attached to E3.This schematic is the RAM DDR memory: They are connected correctly. The index of DQU2 is the 10:th index of DQ, also DQ10. But the naming of the net labels seems ...

DMårt · 2024-03-24

I'm going to build my own computer by using STM32MP157 and install OpenSTLinux onto it. The powering for STM32MP157 can be done via USB-C connection, but that requires an USB-C charger of 5 volts.Can I skip that and only using a regular charger like ...

DMårt · 2024-04-20

@PatrickF Thank you for your reply.I have no plats to have that STM32MP151AAC3 as a general purpose computer. But I have plans to have a GUI application onto it, written in C or C++ or Java.Is that possible? 3D or 2D.

DMårt · 2024-04-09

So all signal lines should be at the top layer and below the signal lines, the laywer below, it should be the 3.3V plane?Signal layer 2 is very close to top-layer.

DMårt · 2024-04-09

1. OK. So if I got short lines, about 10-15 cm...Well, I have max 2 cm as length2. OK. Same length for all RX and TX lines and they all should have 50 ohm microstip impedance as well.3. OK. Avoid via connection as much as possible4. OK. Have a long d...

DMårt · 2024-03-28

Hi! What do you mean with "keep the group on a per byte basis"? I can mix the signals D0-D15 and DQS_P and DQS_N? Yes I have read the AN5122. Good manual. Working on it. But I don't see any recommendations of which signals can be swapped.

DMårt · 2024-03-27

Thank you for your answer. So that means if I have the data D0 to D15, I can only swap D0-D7 with each other and D8-D15 with each other?Not mix D0-D15 compleatly with each other?

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Can STM32MP151 transfer sound via HDMI connector?

RMGII Routing guidelines for STM32MP151XXX

Is there any Altium CircuitMaker project for the STM32MP series?

Why are the DDR_DQ signals mixed in unsorted order - STM32MP157

CC1 and CC2 - Do I need them for STM32MP157?

Re: Can STM32MP151 transfer sound via HDMI connector?

Re: RMGII Routing guidelines for STM32MP151XXX

Re: RMGII Routing guidelines for STM32MP151XXX

Re: Why are the DDR_DQ signals mixed in unsorted order - STM32MP157

Re: Why are the DDR_DQ signals mixed in unsorted order - STM32MP157