摘要
为了研究满足工业视频显示应用中需要的便携式非标准时序DVI视频信号。使用STM32生成需要显示的DVI视频数据,通过FSMC接口送入FPGA外挂的SDRAM中,FPGA内部视频信号产生逻辑读取SDRAM中的数据,按照DVI视频的时序产生满足要求的RGB并行视频数,送入DVI视频信号编码芯片产生标准的TMDS串行DVI视频流。完成了基于FPGA的非标准视频信号发生器硬件电路设计,产生可以用作工业视频信号源的DVI视频信号。以较小的板卡体积和设备功耗,为便携式非标准工业DVI视频应用提供了一种新的解决方案。
In order to research portable non-standard time-sequence DVI video signal applied to industrial video display, STM32 is used to generate DVI video data,（which will be sent to SDRAM plugged in FPGA through the FSMC interface,and then read by the logic generated by the internal video signal in FPGA）,the parallel RGB video is generated according to the DVI video signal time-sequence,which will be sent to DVI video encoding chip to generate standard TMDS serial DVI video flow. The hardware circuit of non-standard video signal generator based on FPGA was designed. DVI video signal was generated which can be used as industrial video source. With a smaller board size and power consumption,a new solution was provided to meet the industrial application of portable non-standard DVI video.
出处
《现代电子技术》
北大核心
2015年第2期69-72,76,共5页
Modern Electronics Technique
