USB is Universal Serial Bus. If your question relates to a specific chip, please mention it in your question.
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0answers
7 views
Help to fix custom CDC Send function
I am using a custom code of CDC example from 177x_8x_PDL_110602 package (I am not using LPCOpen).
I am having a trouble with CDC_Send function. That is the scenary: An python script send messages to ...
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2answers
49 views
What is the best way to connect UART to USB? (need HID compatability)
I was wondering what would be the best method to add USB connectivity to one of my designs. I have an Atmel ATMega328P which will be sending HID reports to my computer, but I need a bridge to go from ...
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1answer
34 views
Arduino: FTDI to USB on another arduino
I have a Sparkfun EL sequencer board, which uses the FTDI interface to connect to a USB cable. I would like to hook up a MakeyMakey via USB and communicate between the two. I have not had any success ...
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1answer
70 views
Is USB a switched network?
I recently explained to someone why USB before 3.0 must use polling as opposed to interrupts here. Basically, from my understanding of I2C, USB is also a master slave architecture sharing a cheap 1 ...
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1answer
97 views
How is power and communication from USB achieved at the same time?
I am currently designing a circuit which is powered from USB but also requires the ability to communicate (from the PC) to the microcontroller using UART or rs232 over the USB cable. How is this ...
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2answers
75 views
Are there vertical through-hole USB mini B plugs?
I can't find any manufacturers who make vertical through-hole USB mini-B plugs. I can find plenty of receptacles, and plenty of micro-B and A plugs, but no mini-B. Not even discontinued models.
Is ...
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0answers
47 views
Maximum transfer rate of USB mass storage device using micro-controller
I plan to design a NAND flash disk using STM32F415RGT6 (168 MHz Cortex-M4) micro-controller. Using USB3300 PHY enables the microcontroller to connect in High-speed USB 2.0 mode. Therefore, the ...
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2answers
106 views
What FPGAs support USB 3.0 super speed OOB signals?
I would like to build a USB 3.0 PHY with FPGA. I have heard that some FPGAs transcievers should support OOB that is used in USB SuperSpeed differential lines. I am also wondering if such devices exist ...
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0answers
89 views
Send data from FIFO memory module to USB
I have a FIFO module running at 24MHz, producing 1 byte per clock. Then it produces 24MB/s. I need to send this data to PC through USB or Ethernet.
How can I achieve this?
Doesn't exist some USB ...
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2answers
55 views
Arduino Mega 2560 not detected when connected to USB port
I've just received Funduino Mega 2560. This is a Chinese product and should be the exact copy of Arduino.
I am having problems connecting it to my computer and have spent several hours trying to ...
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2answers
80 views
Switching a 4-lane bus under microcontroller supervision
Looking for a simple and effective way to switch a 4-lane bus, under the control of a microcontroller (labelled as "controller"), as shown in the logical schematic below. Device-3 should be connected ...
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1answer
44 views
Emulate a USB downstream port
Well, I have a USB device (kindle) with the lock/unlock button broken. The Only way to unlock the device is to connect it to a computer (not to a charger) via USB.
Is there any way to modify one usb ...
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1answer
75 views
Inductive phone charger mod - doesn't work with battery too close?
I am experiencing a strange issue, likely because I do not fully understand the technology I am trying to make play nice together, but maybe someone here can shed some light on it.
I have an HTC Evo ...
0
votes
1answer
63 views
hard-wire 4-port usb hub to my car's 12v switched cig outlet
I would like to hard-wire a 4-port usb hub to my cig outlet. I currently have the hub connected to my power inverter and have to flip a switch to turn on the power. My goal is to do a complete ...
0
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1answer
38 views
USB Stack for LPC1343
I was trying to implement a USB keyboard on LPC1343 using the ROM based HID driver when I came across some information on the internet which stated that the ROM based HID driver is very limited in ...
