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I have two possible interpretations of how the USB BTABLE and PMA layout work on the STM32F103. I will provide two diagrams (Figure A and Figure B) to illustrate the scenario. STM32F1 USB PMA Scenario:...
rd-dev's user avatar
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I'm attempting to run the Tiny USB MSC example (Provided in the ESP-IDF github repository), and it doesn't appear to work. Initially, the example flashes, but only outputs the below and hangs on '...
somebodywhodoesntknowmuch's user avatar
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While I'd appreciate the answer, I'd really like to understand how to diagnose what's happening in Python. The basic issue is that Raspberry PI OS or a driver causes some USB connections to disconnect ...
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I'm currently using a SBC (a Raspberry Pi Zero 2W) to receive data from a device (let's call it Sensor). Sensor is connected to the micro USB port on the SBC through an adaptor with FTDI FT232R USB ...
Isaia Ismaele's user avatar
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I have a list of 12 serial COM ports and I am trying to pick only the ones made from a specific Manufacturer, "FTDI". For some reason, I cannot pull this info without using the Systems....
Katie Kelly's user avatar
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I have a C# application that uses the USB serial device mounted to /dev/ttyUSB0. I need to send a status request to this device, which I can do very easily with printf "\00\48\ee\ff" > /...
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I have a Digilent Nexys Video Artix-7 FPGA development board. This board has two Micro USB ports. One is used for UART-USB communication, and the other one for uploading bitstreams(as a JTAG). I ...
Arda Ünal's user avatar
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When I was writing a USB driver, I used the usb_bulk_msg function to send data. When I used an array created with stack space, I could only send data under 8 bytes. If I sent more than 8 bytes, the ...
Jiawei liu's user avatar
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I'd like to know how I can connect the Epson ePOS SDK to Android using Flutter. From what I've learned, the SDK isn't available for download and installation in my project. Therefore, I need to write ...
Hamza's user avatar
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I have switched from Arduino to create and learn with custom STM32 boards. I followed a tutorial on how to make a simple STM32 breakout board. The design matches the tutorial and datasheet from STM32. ...
Peter Mortensen's user avatar
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I use the stm32g0b1 microcontroller to USB Host. I use the HAL library from STMicroelectronics. Class for FS IP: Communication Host Class (Virtual Port Com). And it works great with other ...
Clifford's user avatar
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I've been trying to program a CH552 chip using assembly, however, I've ran into a bit of a problem when trying to implement USB. My device replies to the first GET_DESCRIPTOR (device) fine, as shown ...
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I am a junior AOSP developer, I have myservice application with type of coredomain, type myservice, domain, coredomain, mlstrustedsubject; I need to open functionfs objects, but adding allow myservice ...
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I'm using FunctionFS on Linux to implement a USB gadget with 3 endpoints: EP1 IN (Interrupt) EP2 IN (Interrupt) EP3 OUT (Bulk) The gadget fails to bind to the UDC (echo <udc> > /sys/kernel/...
Progman's user avatar
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We are developing a windows application using Electron framework. This application intends to show video streaming from USB Camera. We are using "navigator.mediaDevices" apis to access USB video ...
Thej's user avatar
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