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

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LPCxpresso: How to write a constant value to flash memory at programming time?

Is there a file or setting that I can add to my project that maps specific values to specific memory location in IAP flash when it is programmed? The device is LPC1114. The use case is that each ...
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108 views

Using LPCxpresso with barebones LPC4337 board

I recently purchased a development board on eBay that will allow me to work with NXPs dual core LPC4337 ARM M4/M0 processor. I have experience working with uVison4 from KEIL, for the FRDM-KL25 from ...
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Using an LPC812 to relay/transform SPI commands

I'm trying to use the LPC812 as a SPI relay between an FPGA and a new FPAA. The purpose is to make the hardware backwards compatible with old firmware by taking old SPI commands from the FPGA and ...
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“Not mounted” - Meaning on a schematic

I was looking at the schematic of the LPCXPRESSO LPC1769 board from NXP and I couldn't figure out what they meant by "not mounted" which appears on the left corner of the following picture. Here's a ...
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Using LPCXpresso 1114, I am unable to call a function in a C++ file from a C file

I am having a similar problem to the one described in this post: Why isn't my SysTick_Handler() being called in my LPCxpresso C++ Project? I have a couple of .cpp files, but the rest are .c ...
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Connection refused on debugging

I'm trying to debug my dev board here, using LPCXpresso v7.1.1 [Build 125] [2014-04-01] , Manjaro linux (Arch based), and a J-link programmer. Every time I tried to debug my program, I got an error: ...
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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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765 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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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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367 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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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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335 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
227 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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993 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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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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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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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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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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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? ...