Low Cost LPC134x Cortex-M3 with USB now shipping in volume

Started by nxp_marketing_usa in LPC200010 years ago 1 reply

NXP announces availability of ARM Cortex-M3 USB microcontrollers LPC1340 series MCUs are now USB and VDE certified=20 The LPC1340 series...

NXP announces availability of ARM Cortex-M3 USB microcontrollers LPC1340 series MCUs are now USB and VDE certified=20 The LPC1340 series microcontrollers with full-speed USB 2.0 device connecti= vity enabled by on-chip USB drivers certified by USB-IF, makes them the eas= iest-to-use USB MCUs in the industry. The LPC1340 is supported by VDE IEC 6= 0335 Class B test libraries to support custome...


USB communications are causing my firmware to reset

Started by ajellisuk in LPC200010 years ago 3 replies

Hi, My project is using an LPC2148 microcontroller and I'm using the USB in bulk mode. I'm using IAR systems Power PAC RTOS with the USB addon....

Hi, My project is using an LPC2148 microcontroller and I'm using the USB in bulk mode. I'm using IAR systems Power PAC RTOS with the USB addon. For some reason I have found that my firmware sometime resets when I either physically connect my product to a PC via the USB port or it resets when I start sending and receiveing data via the USB port. Has anyone elese experience problems like t...


Usb embedded host/OTG stack advice

Started by Ignacio in LPC20008 years ago

Hi all, I am going to start a new project using LPC1769, the microcontroller needs to interact with a usb mass storage device (pendrive), so I...

Hi all, I am going to start a new project using LPC1769, the microcontroller needs to interact with a usb mass storage device (pendrive), so I am looking for a usb host/otg embedded stack. It seems that there isn't free options besides the usb host lite from nxp; so I would like to ask for advice/experiences about other usb host/otg stacks. I don't need support for other usb devices besides mas...


USB Host bootloader

Started by ostehaps01 in LPC200011 years ago 5 replies

Hi Is there any exiting USB Host bootloader out there I can use as template? I would like to bootload my platform by inserting a USB key...

Hi Is there any exiting USB Host bootloader out there I can use as template? I would like to bootload my platform by inserting a USB key (or USB disk) into it, and then program the device. I uses the LPC2478 /Thomas ------------------------------------


problems with ARM-USB-OCD in crossworks

Started by drproton2003 in LPC20008 years ago

I am attempting to use a ARM-USB-OCD in crossworks on vista x64. After some fiddling I managed to get the drivers to install without error, using...

I am attempting to use a ARM-USB-OCD in crossworks on vista x64. After some fiddling I managed to get the drivers to install without error, using the ones from olimex. Under device manager the following shows up: USB composite device USB serial converter A USB serial converter B USB serial port (COM45) However whenever I try to use this under crossworks I just get "Target not respon...


USB aud io

Started by Girish Wabale in LPC200013 years ago 1 reply

I want to make my USB Headset using LPC 2138 .This is my first time to use USB. How do I tell PC that it It has to send or recieve encoded...

I want to make my USB Headset using LPC 2138 .This is my first time to use USB. How do I tell PC that it It has to send or recieve encoded audio signal to the USB. Do I need to write saperate device driver for windows or Human Interface Driver(HID) will takecare of it.. Plz help .. Thanks and regards Girish ------------------------ Yahoo! Groups Sponsor --------------------~-->


USB1.1 or USB2.0

Started by gaquaycalifornia in LPC200012 years ago 3 replies

Hi all, Please help with the confussion. I have two questions regarding the USB support on nxp Arm7. Question 1. What are the...

Hi all, Please help with the confussion. I have two questions regarding the USB support on nxp Arm7. Question 1. What are the differences between the two versions, USB1.1 and USB 2.0? (A link to some sort of comparasion would be very helpful) Question 2. Why in the lpc2378 specification, the on board USB interface supports USB 2.0, but in all the examples code, the...


USB suspend

Started by Himanshu Patel in LPC200010 years ago 2 replies
USB

Hi, =A0 We are working on USB reader. The reader is having battery which gets charg= ed when connected to USB. In this case how suspend (USB)...

Hi, =A0 We are working on USB reader. The reader is having battery which gets charg= ed when connected to USB. In this case how suspend (USB) and wakeup can be = implemented?=20 =A0 As per speicification, in suspend mode, the device should consume current i= n uA. As battery gets charged from USB, it would always be consuming more c= urrent.=20 =A0 Any one has idea whether suspend/wakeup...


LPC2361 USB-HOST

Started by f_bracalenti_technika_it in LPC200010 years ago 2 replies
USB

Hello everyone, Anybody are using USB-HOST functionality on LPC2361 successfully ? I already realized Usb-Host Mass Storage Class on LPC24xx...

Hello everyone, Anybody are using USB-HOST functionality on LPC2361 successfully ? I already realized Usb-Host Mass Storage Class on LPC24xx family without problem. Now with the LPC2361 nothing happen on the USB port_1 pins: P0.29 USB_D+1, PO.30 USB_D-1, P1.19 USB_PPWR1, P1.22 USB_PWRD1, P127 USB_OVRCR The LPC2361 have only USB port1, that can work alternatively as Decive/Host/OTG. I...


USB Controllers

Started by wickedmonster2002 in LPC200013 years ago 4 replies

Hello People, I was wondering if anybody has experience in using USB Peripheral Controllers such as MAX3420E or an FT232BM. I really dont...

Hello People, I was wondering if anybody has experience in using USB Peripheral Controllers such as MAX3420E or an FT232BM. I really dont want to write a windows custom driver for it. I am working with an LPC2220 and i know that there is an LPc2140 available for USB applications, but LPC2220 is best for our purposes. Its the USB thats missing.=20 Comments, suggestions, curses...welcom...


USB Setup

Started by nicolkb1 in LPC200013 years ago 2 replies

Help anyone, We are in the process of developing a new USB Printer using an LPC2148 processor. The USB Interface is configured just fine...

Help anyone, We are in the process of developing a new USB Printer using an LPC2148 processor. The USB Interface is configured just fine to use EndPoint 2 as a BULK Transfer Endpoint and we are using Bi-directional protocol. Using Keil USB routines which came with the MCB2140 development prototyping hardware, we have been able to configure the hardware and get the communication ...


Lack of USB enumeration, ie. doing without a USB host

Started by treliscom in LPC200012 years ago 1 reply

Hi all, I've seen some discussion about creating a usb host and the need for it to be able to enumerate through various devices. My...

Hi all, I've seen some discussion about creating a usb host and the need for it to be able to enumerate through various devices. My project requires something a bit different: I want to use a specific USB thumb drive as the only device type that will attach to a controller and which will also only speak in a single mode. Is there a requirement that enumeration actually be performed, o...


strategies for detecting USB disconnect on LPC2364

Started by Colby Boles in LPC20009 years ago 2 replies
USB

I'm using the Keil USB stack with the LPC2364 and everything is working fine, except that I do not always get the USB Suspend event...

I'm using the Keil USB stack with the LPC2364 and everything is working fine, except that I do not always get the USB Suspend event callback from their code when USB is disconnected from my device. The usbhw.c code that sends this event is pretty straight forward, basically forwarding to this event whenever a USB interrupt occurs and the DEV_SUS_CH and DEV_SUS bits are set in the device statu...


usb help

Started by Rakesh Modi in LPC200013 years ago 3 replies

I want to start usb programing in lpc2148, so how can i? i m not getting a material for understanding usb protocol. any one from u can help me?

I want to start usb programing in lpc2148, so how can i? i m not getting a material for understanding usb protocol. any one from u can help me?


USB and RS232 line sharing with a mux

Started by Russ Prentice in LPC200011 years ago 8 replies
USB

I only have one usb port on the device I am designing and I really need RS232 to come out on it along with USB. I'm trying to figure out a way...

I only have one usb port on the device I am designing and I really need RS232 to come out on it along with USB. I'm trying to figure out a way to allow this either by muxing or selectively enabling/disabling the MAX232 chip. The data is going out over a USB cable. Anyone have experience with this? This is the closest mux I could find, but it doesn't have have a low enough negative volta...


usb bootloader problem

Started by techindia_karthik in LPC20007 years ago 3 replies

i download usb bootloader program from nxp website and user manual an10711 usb secondary bootloader . i just follow the manual and i got output...

i download usb bootloader program from nxp website and user manual an10711 usb secondary bootloader . i just follow the manual and i got output for it .but the problem is for the second program the usb boot loader is not working .after reset its shoews that usb not recognising i am using lpc2148 controller . i think it is the memory problem while updating the firmware my testcode overwri...


switching from USB power to battery power

Started by gcwa...@ncsu.edu in LPC200012 years ago 2 replies

In my application the device is mostly in powerdown mode which of course uses hardly any power. However, when the USB is connected, it draws power...

In my application the device is mostly in powerdown mode which of course uses hardly any power. However, when the USB is connected, it draws power from a battery instead of the USB. Anyone have a good method of switching to USB power when its plugged in to USB and then back to battery power when its not? This would have to be done without the LPC2148 resetting. Thanks Caleb


Announcing Jumentum-SOC 0.99.1

Started by Prof Dc in LPC20008 years ago

Jumentum System-on-Chip version 0.99.1 for LPC1768, LPC2368, LPC2148, and other LPC ARM processors has been released. This version adds support...

Jumentum System-on-Chip version 0.99.1 for LPC1768, LPC2368, LPC2148, and other LPC ARM processors has been released. This version adds support for USB serial port emulation (USB communication device class). This obviates the need for using a USB to serial converter as well as enables faster data transfers via USB. The USB has been tested with Windows 7, Windows XP, and Linux. This feature sho...


LPC214x USB Specifications

Started by Dan Beadle in LPC200014 years ago

The USB part of the user manual is pretty sparse. Does Philips have additional information about the USB block of the 214x series? ...

The USB part of the user manual is pretty sparse. Does Philips have additional information about the USB block of the 214x series? _____


USB without some signals

Started by ostehaps01 in LPC200011 years ago 3 replies

Hallo I have a question regarding USB in the LPC2478. Is it possible to use the USB as a host, if I done use the signal USB_POWERx and...

Hallo I have a question regarding USB in the LPC2478. Is it possible to use the USB as a host, if I done use the signal USB_POWERx and USB_OVERCRx ? Im planing on using those GPIO's for something else. Its not clearly in the LPV2478 data sheet. /Thomas ------------------------------------