The LPCOpen platform provides software support for multiple NXP devices and is constantly being developed and improved. The LPCOpen platform is download in multiple parts. However, you only need the LPCOpen paltform code to get the core drivers and examples.

The following are the main and optional components on the LPCOpen platform:

Rev. A LPC43xx CMSIS-Compliant Standard Peripheral Firmware Driver Library (Keil). For updates, review the LPC4300CMSIS_ReleaseNotes.txt file.

In systems that use SDRAM and boot from NOR FLASH, an issue can occur on system reset that will prevent the SDRAM devices from releasing the data bus. This will prevent normal operation of NOR FLASH due to data bus contention and prevent the LPC32x0 from booting correctly. This issue does not impact NAND, SPI, or UART boot methods.
This application note will focus on a simple system design change to correctly restore SDRAM operation to a high impedance bus state on reset so NOR FLASH will boot correctly.

This application note focuses on connectivity, initialization and board layout guidelines when using SDR and DDR memories with the LPC32x0.

Includes MCI sample project updates among some others.

The Common Driver Library (CDL) software package provides a generic set of drivers which highlight how specific peripherals and functions work. This software package also comes bundled with Board Support Packages (BSPs) for the Embedded Artists EA3131/41 and EA3152 development boards which feature the NXP LPC3131/41/52 microcontrollers. The BSPs includes start-up code and examples which can be easily built and executed using any of the supported tool chains. Combined, the LPC313x CDL and BSPs allow you to jump-start your LPC313x microcontroller development.

This is the documentation for the LPC32x0 CDL and covers the features of the CDL, startup code, and tools used with the CDL.