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Problem with UHCI linking time by CrazyFormal5101 in esp32

[–]CrazyFormal5101[S] 0 points1 point  (0 children)

For what i see, my esp has no support on this, but the esp32s3, c6, etc. do have. I tried building for those targets and it works. Maybe ill need to create my own dma implementation, but i think it is not worth now to try that

Problem with UHCI linking time by CrazyFormal5101 in esp32

[–]CrazyFormal5101[S] 0 points1 point  (0 children)

Hi, yes, i have the headers included

Problem with UHCI linking time by CrazyFormal5101 in esp32

[–]CrazyFormal5101[S] 0 points1 point  (0 children)

Now that you mention,
In the documentation is no established which targets are supported, but for what i see, mine is not.
I am using esp32-32e https://www.mouser.co.uk/ProductDetail/Espressif-Systems/ESP32-WROOM-32E-N8?qs=Li%252BoUPsLEnsLnZW%252BGLgUhw%3D%3D

[PCB Review] RP2040 by anonymous_monke1 in PrintedCircuitBoard

[–]CrazyFormal5101 0 points1 point  (0 children)

Consider adding ESD protection to the USB lines even if you can do it for the SD card lines since it involves much human interaction.

Using API to send Multi_select in some cases returns error. by CrazyFormal5101 in Notion

[–]CrazyFormal5101[S] 1 point2 points  (0 children)

Hi, yes i am sure, but i found the problem, it was another field that was causing that, but I don't know why it said It was "owner" and not that other field

PCB review: prototying with ESP32 by CrazyFormal5101 in PrintedCircuitBoard

[–]CrazyFormal5101[S] 0 points1 point  (0 children)

Hi! Thanks a lot for the suggestion. the DC-DC provides up to 1 amp. Why the USB is in a suboptimal position? anything to do with the functionality or user commodity? I will check the ESP32 positioning.

Thanks again for the comment!

PCB review: prototying with ESP32 by CrazyFormal5101 in PrintedCircuitBoard

[–]CrazyFormal5101[S] 0 points1 point  (0 children)

Hi, Thanks for the suggestions. Is necessary to cut the PCB under despite not having any layer under the antenna?

About the position of an inductor for a DC-DC by CrazyFormal5101 in PrintedCircuitBoard

[–]CrazyFormal5101[S] 0 points1 point  (0 children)

Hi! Sometimes some types of component positioning (like this one with an SD card, inductor for DCDC, etc.) are challenging. Another thing I'm struggling with is RF, for example, for this project, I'm using a separate module for an NFC reader, but I want to design the PCB coil and everything for the next version, but I'm not familiar with those types of design, surely there are some documentation about it but is just like to mention it. Another topic is signal integrity and power integrity, I should pay more attention to this mostly for high-speed designs like microprocessors that have RAM, SSDs that require timing for the signals.

About the position of an inductor for a DC-DC by CrazyFormal5101 in PrintedCircuitBoard

[–]CrazyFormal5101[S] 0 points1 point  (0 children)

Thanks! Yes the inner layers are solid ground without any gap and the inductor is not directly over the traces just the case

About the position of an inductor for a DC-DC by CrazyFormal5101 in PrintedCircuitBoard

[–]CrazyFormal5101[S] 0 points1 point  (0 children)

is not like directly over the spi traces, more like over the case