Design of the Digital Frame Extractor Based on OMAP-L138 Application Processor

The OMAP-L138 application processor is a dual core SOC(ARM926EJ-S and C6478VIEW DSP) chip developed by the Texas Instruments. In the paper, the performance features of the OMAP-L138 chip is introduced and a design scheme of the digital frame extractor based on the OMAP-L138 is proposed. The video input module and output module, the SATA hard disk module, the network module of the digital extractor are configured in detail. The application software design flow based on the hardware platform is proposed in the paper. The playback of the video data based on the network interface and LCD interface is designed. The image files stored in the SATA hard disk are transferred to the personal computer for broadcasting through the network. On the other hand, the image files can also be displayed through the LCD interface of the OMAP-L138. Taking advantages of the ARM core and the digital processing capabilities of the DSP core, low power high-performance is exerted.