At present, most of the stage lighting console designs are based on MCU(Micro Control Unit), but its technique advances, information storage and real-time performances are deficient. This paper proposed that using the technique of ARM-Linux can realize the function of lighting console. This technique adopted S3C2440 processor as the main control chip of the hardware. The transmission of dimming data followed the DMX512 agreements. The low-level driver programs were developed under linux2.6.12, it provided interfaces for upper layer application. Testing results show that this system has perfect dimming performance and scalability, which is easy to upgrade. Our design has important theoretical significance and practical value for stage lighting control.
This paper designed a multiple channel audio acquisition system based on FPGA and ARM. On the one hand, the system uses FPGA as the core, realize high speed logic control and the AD interface control unit. On the other hand, the ARM is responsible for the logic control and the realization of the HumanMachine Interaction, and to save the audio data to the SD card. The system has the advanced of low power consumption, real-time and high scalability. Therefore, we can implement the reliable and lower cost acquisition system of multi-channel audio signal.
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