LPCXpresso is a low-cost development system from NXP Semiconductors that supports their LPC range of ARM-based microcontrollers.

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LPC1769 Xpresso board not responding to ISP

I've been happily programming my LPC1769 Xpresso board using an FT232 breakout board for weeks now. Recently, I moved the project into an enclosure, and it no longer responds to programming. I've ...
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3answers
224 views

Why isn't my SysTick_Handler() being called in my LPCxpresso C++ Project?

I have created a C++ project for an LPC1227 using LPCExpresso 6.1.0. The project, up until now, builds and runs fine. I have not made any changes to ...
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1answer
225 views

NXP LPC1114 UART doesn't work after reset

I'm building a simple circuit with LPC1114 to make a "hello world" application using UART. Trying to write all the code from scratch, to have a better understanding on what's happening. My problem is ...
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1answer
245 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 ...
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218 views

JTAG Programming with LPC4330

Because the Example Virtual Serial Device project from NXPUSBLib contains a space in it's directory structure (specifically Example_VirtualSerialDevice/LPC43xx M4/...) I can not successfully download ...
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2answers
281 views

Two MinIMU-9 v2 with LPCxpresso, or Arduino Uno/Mega

I am working on a project that interfaces two IMU sensors to one microprocessor (NXP LPCxpresso). The purpose is to read both of gyro and accelero at two different place on the bodies. I have ...
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1answer
194 views

NXP LPC1343 GPIO questions

I am an embedded SW developer who wants to get more familiar with HW design. I have an LPCXpresso board with an LPC1343 on it. I want to build some circuit around that. I thought I'll start by finding ...
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765 views

Interfacing microSD with LPC1769 Board

So we're trying to store bytes (from an A/D converter) of data into a SanDisk 1Gb microSD card from a LPC1769 microcontroller board using the on-board SPI protocol. I know how all that stuff works, ...
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930 views

Getting started with LPCXpresso

I just got my LPCXpresso 11U14 Cortex M0 board. I spent a week trying to get SPI working and I still get compiler errors! I've tried to use the example projects on NXP's website, but they are all for ...
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940 views

First project with LPC1769

I would buy an LPCXpresso LPC1769. I need a TCP/IP connection and an SD card reader for my project, and I can not understand if LPC1769 is ready for this (like Arduino Ethernet shield) or I need to ...
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7answers
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Which family of ARM processors should I learn: ARM7TDMI or Cortex M3?

I am looking forward to learn the ARM7 family of microcontrollers. When I searched on the internet, I found there are two versions: slightly older ARM7TDMI (LPC21xx etc) and newer Cortex M3 (LPC 17xx ...
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Driving Stepper motor using ULN2003a IC

I tried connecting the GPIO1_0 pin of LPC1114 to the input pin 1 of the ULN2003a IC. And I connected a 9V supply to the COM pin of ULN2003a. For whatever the logic level at pin1 (i/p) of ULN2003a, its ...
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1answer
2k views

Running a CAN sample project on LPCXpresso LPC11C24

The LPC11C24 has a on-chip CAN transceiver and a section of ROM with CAN driver software. I am trying to run the can_onchip sample project on the LPCXpresso board. ...
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3answers
2k views

Reprogramming LPC3154 at LPCxpresso

I wonder, if that's possible to load lpc3154 at LPCExpresso board with custom firmware? I see that chip supports secure boot, so if AES key was programmed, it is impossible without knowing the key? ...