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USB is Universal Serial Bus. If your question relates to a specific chip, please mention it in your question.

2 votes
Accepted

Minimal USB-SIE code example for PIC16F1454 and question about windows driver

This allows active clock tuning with clock synchronization done via the SOF signal from the USB host. Disclaimer: This is the quick and dirty way. … As for the driver, you shouldn't need to any USB driver for standard devices like a USB mouse/keyboard. For the custom HID and others the MLA contains source code for writing your own USB driver. …
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2 votes

Re-programming PIC microcontrollers with USB through smartphone

Whether or not you need USB OTG depends on the capabilities of your phone. If your phone cannot act as the USB host, you will need the microcontroller to act as the USB host. … There are many PIC devices that have USB hardware (and USB OTG) and can be self-programmed. …
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2 votes

How frequently must Microchip's USB HID USBDeviceTask() Task run?

Try using USB in interrupt mode. USB devices must respond to host requests within a certain time frame. … You haven't detailed how long your timer tasks routine takes to execute but from this error it seems that it is taking too long and there is no way for the USB to respond in a timely fashion. …
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3 votes

Sending data from PC to micro-controller

already have a USB communication port on the chip. … On the other hand, if the main focus is stepper motors and not communications then using off the shelf parts for USB communication would probably not be frowned upon. …
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