Questions tagged [usb-host]
A USB host port implements the upstream end of a USB connection
225 questions
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USB C Android OTG for data and charge at the same time
I want to create a device that connects to an Android phone via USB-C and allows me to use a USB peripheral (sending data from UC to android), and at the same time keeps the Android device charging.
I ...
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USB-C pull-up resistors set to 3A, but phone charges slowly
I am building a custom charging panel that will sit behind our couch. It has four DIY USB-C cables that can be pulled out to charge phones. Under the panel, they connect to a 5V power supply rated for ...
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The USB hub I'm designing doesn't have upstream operation
I'm designing a USB hub.
The overall configuration uses USB 3.0 Type-C ports for both the upstream and downstream ports. The upstream port receives power and data from the PC, while the downstream ...
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Need help setting up USB_HOST mode in STM32F401RET6
I am new to STM32 development, I want to connect a sensor to my Nucleo-64 board. This sensor shows up on PC as 2 virtual com-port over single physical USB device. I want to detect both these com-ports ...
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Blue Wire in USB OTG
I am trying to make a otg usb cable. I have researched the issue and have seen how to wire cords with four wires. But the usb c cable that I have has wires. Red,white, green, blue, black. Plus, ...
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USB interrupt EP transfer
It is basic USB protocol question. Consider having interrupt IN EP, declaring its bInterval to be 10ms. As far as I understood, by accepting particular configuration, host will oblige itself to be ...
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Why USB-C plug doesn’t charge? [closed]
I have multiple USB-C 5V chargers of the same type that do not charge connected android devices. Devices detect charging if these are turned off, but when turned on, no charging icon of any visual ...
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How should I select the ohm values for pull-up and pull-down resistors in a device with a USB Type-C connector used solely for power
Good morning, everyone. I am exploring the transition of the receptacle from a micro USB connector to a USB Type-C. Initially, my plan included implementing both sink and source capacity. However, ...
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Replace micro USB tablet connector with USB C
I'm considering upgrading my dad's old tablet, which currently has a micro USB connector. The issue arises from his habit of frequently misplacing the charger, and I'd prefer not to rely on an ...
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Converting a USB HID K/M Composite Device to a USB HID Compound Device (or Two Seperate K/M Devices)
I want to connect a USB composite device (Raritan KX4-101) with keyboard and mouse descriptors to a USB matrix switch with a very picky HID keyboard and mouse emulation (Extron SMX USB).
From what I ...
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USB 3.0 SS lines issue
Can you route USB 3.0 SS lines to two PCB's but the USB controller is located on the second PCB?
The PC host is connected to the first PCB over a usb c-c connection (center usb port in image). Then ...
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Is it possible to apply quick charge 3.0 to USB-C?
There's a wall outlet with a USB-A fast charging port
It has a USB-A charging port that supports 9V 1.67A fast charging.
It uses FP6601Q and supports QC2.0/QC3.0.
I'm trying to change the USB-A ...
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USB Current Oscillation ~ 100 mA Without Device [closed]
Apologies for my lack of deep knowledge here - this is not my background and I am definitely an amateur so I greatly appreciate your willingness to help me!
Background: I was curious about the ...
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UART over USB for radio transciever board
I am creating a telemetry radio that operates over UART, but I want to interface via a USB port so the same connection can be used between the flight computer and the onboard radio and between the ...
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USB HUB for OTG
I have designed a custom board with Processor which is having a dedicated USB 2.0 OTG port. I want to convert it to 4 USB OTG ports. so I was thinking to use the USB 2.0 HUB with OTG support for 4 ...
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