与TMS320C6201接口的实时图像显示电路设计

Design of the real-time display circuit interfaced with TMS320C6201

设计了与TI公司的TMS32 0C6 2 0 1评估板接口的实时图像显示电路 ,介绍了C6 0 0 0系列DSPs的EMIF异步接口的控制要求及与VRAM接口的方法 ;采用单片EPLD实现了显示电路的全部控制功能 ,其中包括VRAM读写和刷新控制及显示同步控制 ;DSP与显示帧存间的数据传输采用了DMA方式 ,充分利用了TMS32 0C6 2 0 1的定时器、中断和DMA等硬件资源 ,节省了CPU的时间开支。可在 10 2 4× 6 0 0分辨率、6

The display circuit interfaced with the EVM of TMS320C6201 is designed. The request controlling asynchronous interface and the method connecting with VRAM are introduced. The display circuit, including VRAM reading/writing and fresh, display synchronization, is controlled by a single EPLD. The DMA mode is used to transfer data between DSP and display memory, which takes advantage of the hardware resource such as timer, interrupt, DMA, and saves the time of CPU transferring data. This circuit can display the images, which are dealt with by DSP, with 1024×600 resolution and 60Hz frame frequency.