NXP LPC5500 CPU Support Package

This package contains project templates and system files for the NXP LPC5500.

CrossWorks Version 4 Installation Instructions

To install this support package

1. Click the Tools > Package Manager menu option to open the package manager window.
2. Right click on the NXP LPC5500 CPU Support Package entry and select Install Selected Packages.
3. Click Next to take you to the summary page.
4. Click Next to install the package.
5. Click Finish to close the package manager window.
6. Click the Tools > Show Installed Packages.
7. Click on the NXP LPC5500 CPU Support Package link to view the package and its contents.

To manually install this support package

1. If you have not done so already, follow the CMSIS 5 CMSIS-Core(M) Support Package, CMSIS 5 CMSIS-DSP Support Package, CMSIS 5 Support Package and CrossWorks Tasking Library Package installation instructions.
2. Download the file LPC5500.hzq using your web browser.
3. Click the Tools > Manually Install Packages menu option.
4. Select the file you have just downloaded to install the package.
5. Click the Tools > Show Installed Packages.
6. Click on the NXP LPC5500 CPU Support Package link to view the package and its contents.

Release Notes

4.2

• Fixed connecting and downloading to erased device.
• Add support for LPC55S3x/LPC553x devices.

4.1

• Add support for LPC55S0x/LPC550x devices.

4.0

• Initial Release. This package replaces the LPC55S6x CPU support package.

Documentation

Creating LPC5500 Projects

To create a new LPC5500 project

• Select the File > New > New Project menu item.
• Select the appropriate Generic LPC5500 from the Categories list.
• Select the required project template type from the Templates list.
• Set the required project name and location directory.
• Click OK.

To build and debug an application the runs in Flash memory

• Select the project to work on by using the Project > Set Active Project menu option.
• Select the configuration you require by using the Build > Set Active Build Configuration menu option.
• Build the project by using the Build > Build Project menu option.
• Connect to the appropriate target in the target window.
• Download and start debugging the current project by using Debug > Start Debugging.

To make the application startup from reset

• Right click on the project node in the project explorer and select Properties...
• In the properties window scroll down to the Preprocessor Options section.
• Type STARTUP_FROM_RESET into the Preprocessor Definitions property editor.

LPC5500 Project Specifics

Stack and Heap Sizes

The default stack and heap sizes are set to be 1024 and 1024 bytes by default when a project is created.

Target Startup Code

The startup code is device specific and is selected with the Target Processor entry. There are a set of preprocessor defines that configure the startup code and are documented in the startup file itself. The startup code calls out to a weak symbol SystemInit with the stack pointer set to the end of the stack section. The SystemInit function can be used to set the CPU clock or configure any external memories prior to the C initialisation code as such it cannot access initialised static data.

The startup code declares symbolic names (and weak implementations) for each interrupt service routine, for example the RTC_SEC_IRQHandler function will be called when the RTC second match interrupt occurs. The names of the interrupt service routines match those in the CMSIS header file. If you are porting code that has application specific interrupt service routines then you can use preprocessor definitions to rename the declared symbolic name for example RTC_SEC_IRQHandler=RTC_SEC_DriverIRQHandler.

Target Reset Script

The reset script LPC5500_Target.js is used by the debugger to reset the target board and to enable the tracing capabilities of the device.