LPC111x DALI slave demo board
NXP offers dedicated components to realize DALI (Digital Addressable Lighting Interface) systems capable of achieving lower power consumption and lower cost than those currently available. The reference design can be used as a starting point to develop next-generation DALI platforms.
The NXP OM13026,538 DALI NGX Reference Board contains an example implementation of an isolated physical layer for th Digital Addressable Lighting Interface (DALI) bus with ARM® 32-bit Cortex M0 LPC111x microcontroller for the DALI protocol handling, and many I/O functions to steer external lighting drivers for solid state or compact fluorescent lighting applications. Up to four PWM signals are available to independently drive different lighting units. Frequency and resolution of the signals is software programmable.
The LPC111x are a ARM® Cortex M0 based, low-cost 32-bit MCU family, designed for 8/16-bit microcontroller applications, offering performance, low power, simple instruction set and memory addressing together with reduced code size compared to existing 8/16-bit architectures.
The LPC111x operate at CPU frequencies of up to 50 MHz. The peripheral complement of the LPC111x includes up to 64 kB of flash memory, up to 8 kB of data memory, one Fast-mode Plus I2C-bus interface, one RS-485/EIA-485 UART, up to two SPI interfaces with SSP features, four general purpose counter/timers, a 10-bit ADC, and up to 42 general purpose I/O pins.
Key Applications: eMetering, Lighting, Alarm systems, White goods
Features
- Contains isolated physical layer for the DALI bus with a Cortex M0 LPC111x microcontroller for the DALI protocol handling, and many I/O functions to steer external lighting drivers for solid state or compact fluorescent lighting applications
- Schematics, gerbers and BOM also available to speed up development
- Up to four PWM signals available to independently drive different lighting units
- Frequency and resolution of the signals is software programmable
- ON_OFF signal can be used independently from the PWM signals to switch a lighting driver into an OFF or ON state
- I2C-bus pins can be used to externally connect other devices like EEPROM or a temperature sensor
- Analog A/D input is available via pin 8
- IO signal is left open for the end user
- UART, I2C and A/D converter functionality not included in the software release
- Benefits:
- Reduced system complexity with high performance MCUs
- High efficiency power conversion
- Low power consumption from the MCU (for bus power devices)
- Cost optimized
Ships With
- OM13026 DALI Reference Board
- User Guide