USB Bulk Reads via Cypress EZ-USB FX2

Started by Gavin Brewer in comp.arch.embedded13 years ago 3 replies

Hi Guys, I have attempted to perform a USB Bulk read transfer over an EZ-USB FX2 development board. Vendor requests work fine, but using...

Hi Guys, I have attempted to perform a USB Bulk read transfer over an EZ-USB FX2 development board. Vendor requests work fine, but using the usb_bulk_read() functions returns the following error message: "usb_submit_async: submitting request failed, win error: The parameter is incorrect" So far, we have established that the problem is on the peripheral (8051 FX2) side, and *not*...


Embedded USB Hosts

Started by sarain in comp.arch.embedded12 years ago 2 replies

I am in the process of choosing a USB host stack for a product my company is working on. We are using uC/OS-II on a Sharp ARM9 SoC. So far we...

I am in the process of choosing a USB host stack for a product my company is working on. We are using uC/OS-II on a Sharp ARM9 SoC. So far we have narrowed our choices down to: Jungo's USBware embedded USB host stack. http://www.jungo.com/usbware_embedded_usb_solution.html Micro Digital's smxUSBH embedded USB host stack. http://www.smxinfo.com/rtos/usb/smxusbh.htm On Time's RTUSB-32 ...


A newbie question about USB

Started by Johnson in comp.arch.embedded14 years ago 4 replies
USB

A newbie question about USB. I am developing a PC application (not driver) to communicate with a USB 2.0 slave peripheral device. I would like...

A newbie question about USB. I am developing a PC application (not driver) to communicate with a USB 2.0 slave peripheral device. I would like to know, if my application has built a connection and is talking to the USB peripheral, and I disconnect the cable suddenly, will the application be able to identify the event automatically, or it will still stay with the "connection"? Another problem...


Need Help !!! USB device configuration

Started by nik in comp.arch.embedded10 years ago 2 replies

Hello All, I am a newbie to USB programming and trying to build up communication between LPC2368 (the slave device) and the PC(the host). I...

Hello All, I am a newbie to USB programming and trying to build up communication between LPC2368 (the slave device) and the PC(the host). I am looking for the exact algorithm, although generalized, to setup this communication. Till now, i have done the following : 1. Connect USB clock 2. Initialize USB device interrupt. 3. Initialize Endpoint interrupt. 4. Realize Endpoint 0...


USB synchronous serial port

Started by Stein Erik Andresen in comp.arch.embedded16 years ago 2 replies

I'm looking for a synchronous serial adapter for USB. The device will be used for HDLC communication (framing only) on a laptop (no...

I'm looking for a synchronous serial adapter for USB. The device will be used for HDLC communication (framing only) on a laptop (no PCMCIA available, just USB). Preferably RS-232 / V.24 interface. Does such a thing exist? S.E.


USB host for mass storage access

Started by Jookie in comp.arch.embedded12 years ago 1 reply

Hello, as my subject says, I'm starting to develop USB host for mass storage access. Here are few points which describe my situation: - I'm...

Hello, as my subject says, I'm starting to develop USB host for mass storage access. Here are few points which describe my situation: - I'm a hobbyist, I can't afford to buy an expensive USB stack - my platform is BlackFin BF531 @ 400 MHz - I don't want to use any other type of mass storage as a replacement - I got the SD and MMC cards running at 1.3 MB/s, now I need to add the USB ma...


USB Host

Started by Stefano in comp.arch.embedded10 years ago 9 replies

I have to develop an application, as well as management of certain I / O I must read data from USB key external (USB host). Wkich...

I have to develop an application, as well as management of certain I / O I must read data from USB key external (USB host). Wkich microcontroller easily allows this feature? As possible solutions to simplify the function are possible? Councils also on development tools at low cost. Cortex M3 ? Freescale ColdFire ? Thanks


USB audio chip

Started by cached byte in comp.arch.embedded12 years ago 2 replies
USB

Hi i am looking for some type number of chips to use as an USB audio device it must have line in / line out , non BGA (similar like they use...

Hi i am looking for some type number of chips to use as an USB audio device it must have line in / line out , non BGA (similar like they use in USB headsets ) Johan


Embedded USB

Started by Dan N in comp.arch.embedded13 years ago 1 reply
USB

I'm looking at using the Renesas H8SX1664 processor that has on board usb, and I have a couple of questions. As a slave: What process do...

I'm looking at using the Renesas H8SX1664 processor that has on board usb, and I have a couple of questions. As a slave: What process do you need to go through to get vendor and product IDs? Are there generic IDs that anyone can use? What approvals are necessary? As a host: I realise that writing a usb stack isn't trivial, but how easy would it be to write the code for a very limite...


Selection of a USB microcontroller

Started by FD in comp.arch.embedded13 years ago 16 replies

Hi there, I am in the process of selecting a general purpose microcontroller for several new developments. There are several uCs with USB,...

Hi there, I am in the process of selecting a general purpose microcontroller for several new developments. There are several uCs with USB, but how to select the best one? I guess some of you already have some hands-on experiences. Apart from the USB port, for easy interfacing to a PC, it is important that it is low cost in quantities of 10s to 100s. A requirement is ease of programming,...


New to USB Device Driver Development

Started by Paulus in comp.arch.embedded13 years ago 10 replies

Hi - I have an mechanical device which has 6 different operational functions. I want to develop a USB interface for the device. Effectively, I...

Hi - I have an mechanical device which has 6 different operational functions. I want to develop a USB interface for the device. Effectively, I want to replace a manual "six position" switch with a USB solution so I can control the device through software. 1. How should I select a USB controller 2. How should I select a Firmware solution 3. How best should I develop the software to communic...


Looking USB to RS-232 + RS-422/485 Module ?

Started by Anton Erasmus in comp.arch.embedded13 years ago 16 replies
USB

Hi, I need 2 simple Asyncronous serial ports on a laptop without any serial ports. I have found many USB to RS-232 and a few USB...

Hi, I need 2 simple Asyncronous serial ports on a laptop without any serial ports. I have found many USB to RS-232 and a few USB to RS-422/485 modules, but have not able to find a reasonably priced unit that has one RS-232 port and one RS-422/485 port. We are currently using a separate USB to RS-232 and USB to RS422/485, but the "COM" port changes depending on the sequence in which they ar...


ft232rq device not recognized problem

Started by emBGeek in comp.arch.embedded10 years ago 1 reply

I am working with an ARM board , there is a USB serial section .I have used Ft232Rq . Due 32Qfn pack i somehow soldered with a DIY hot air...

I am working with an ARM board , there is a USB serial section .I have used Ft232Rq . Due 32Qfn pack i somehow soldered with a DIY hot air pencil. I have run the VCP (virtual com port) driver setup in vista . While i plug in the board with USB cable , laptop says " USB device is not recognized ,either it has malfunctioned , try replugging.." I get a USB symbol immediately i plug in the c...


ping to usb interface fails for large packets

Started by Sandeeptssmg in comp.arch.embedded10 years ago 1 reply

Hello Sir, am currently working on OMAP34XX series USB OTG controller. The USB OTG controller is configured to operate in peripheral mode which...

Hello Sir, am currently working on OMAP34XX series USB OTG controller. The USB OTG controller is configured to operate in peripheral mode which is using GADGET USB stack. Am lost debugging this issue. If any pointers / suggestions are highly appreciated. Problem description: -------------------- ping AAA.BBB.CC.DD -t -l 20000 fails with failure message "Request timed out" Debug procedur...


EZ-USB FX2

Started by HG in comp.arch.embedded16 years ago 4 replies

Hi, I need to implement a data logging device with a high-speed (480Mb/s) USB 2.0 to the host. I'm considering the Cypress EZ-USB FX2. Any...

Hi, I need to implement a data logging device with a high-speed (480Mb/s) USB 2.0 to the host. I'm considering the Cypress EZ-USB FX2. Any one got any experience with this device ? Does it deliver ? Does the software driver work out of the box ?. Any feedback good or bad appreciated. Thanks


ARC-OTG USB question

Started by Lee Thalblum in comp.arch.embedded11 years ago 3 replies

Hi everyone, I'm working on a linux device driver for an Arm based USB device. I've got an ARC-OTG USB controller and an ISP1504 compatable...

Hi everyone, I'm working on a linux device driver for an Arm based USB device. I've got an ARC-OTG USB controller and an ISP1504 compatable transciever. I'm trying to find out how to switch from full speed to high speed when the host starts negotiation. I've looked through the USB controller data sheet, and I dont see anything that allows me to change speed, besides test mode. Is the contr...


Question for Dual input XOR Power Switch and Battery

Started by cf.isys in comp.arch.embedded13 years ago 3 replies

Hi, I have a question: In my design I have 2 power input: USB (5V) and Serial+Power Jack (9V). I see in differents computar that the...

Hi, I have a question: In my design I have 2 power input: USB (5V) and Serial+Power Jack (9V). I see in differents computar that the voltage in the USB port not is 5.0V exactly. I want to know which is the best way for implement a automatic xor and power switch regulate for ouput 5V 500mA. The idea is that is the user connect the USB the hardware have power and communication for the USB PO...


Fingerprint Module Question Need Guidance

Started by jm in comp.arch.embedded16 years ago 2 replies
USB

Sorry if this is the wrong newsgroup. Just let me know. I have a USB drive - 256MB. I have seen other usb drives with fingerprint...

Sorry if this is the wrong newsgroup. Just let me know. I have a USB drive - 256MB. I have seen other usb drives with fingerprint authentication on them. I wanted to know where one can get just the fingerprint scanning part and then was curious if I could integrate it into an already existing usb pen drive. Thanks.


USB OHCI software

Started by Anonymous in comp.arch.embedded13 years ago 5 replies

Hi folks, are there any software reference implementation for USB OHCI controllers? The microcontroller I'm working on, has an OHCI...

Hi folks, are there any software reference implementation for USB OHCI controllers? The microcontroller I'm working on, has an OHCI controller but I really don't know where to start. Basically, I need to read a USB flash disk. thanks in advance for any help, Enrico


Microcontroller USB interface chip

Started by mach7 in comp.arch.embedded12 years ago 16 replies

I know very little about USB, so excuse the naive question. I'm looking for an IC that I can interface with a microcontroller (in my case, the...

I know very little about USB, so excuse the naive question. I'm looking for an IC that I can interface with a microcontroller (in my case, the ATMega32) that will let me communicate with a computer over USB. My project involves large data transfers (for logging purposes) and serial / UART is too slow. Any direction would be helpful. Thanks, -J