The DMX512 Software Development Kit (SDK) for the LPC11xx/LPC11Uxx installer contains:

DALI Software Development Kit

DALI Development Kit Revision 2 released 

Revision 2.0 of the DALI SDK for the LPC11xx/LPC13xx contains a major update of the DALI Development Kit  for compliancy with the IEC 62386-102 and IEC 62386-201 standard. Parts of the IEC 62386-207 specification are also included.

LPCOpen processor, board, and toolchain support

Examples were build tested with the following toolchain versions - this only applies to the latest LPCopen version.

IAR EWARM v1.02, Keil UV4 v4.70, LPCXpresso v5.2.4_2122

Supported project list for IAR EWARM v1.02

Keep an eye on this page for information on upcoming releases of LPCOpen. Features, updated drivers, and new devices/boards are continuously be added to LPCOpen, but the planned release dates and features may change without notice!

Would you like to request a feature for LPCOpen? You can request new features on the NXP support page.

Introduction

This app note explains how to implement the PMBus using the LPC microcontroller

The following formula may be used to calculate a parallel resonant crystal's external load capacitors:
CL = ((CX1 x CX2) / (CX1 + CX2)) + Cstray
where:
CL = the crystal load capacitance
Cstray = the stray capacitance in the oscillator circuit, which will normally be in the 2pF to 5pF range.

Assuming that CX1=CX2 then the equation becomes:
CL = ((CX1 x CX1) / (2 x CX1)) + Cstray
CL = (CX1 / 2) + Cstray
Rearranging the equation, we can find the external load capacitor value:
CX1 = 2(CL - Cstray)

For example, if the crystal load capacitance is 15pF, and assuming Cstray=2pF, then: