现代电子技术
現代電子技術
현대전자기술
MODERN ELECTRONICS TECHNIQUE
2015年
2期
69-72,76
,共5页
FPGA%DVI%微控制器%视频显示
FPGA%DVI%微控製器%視頻顯示
FPGA%DVI%미공제기%시빈현시
FPGA%DVI%micro controller%video display
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。
為瞭研究滿足工業視頻顯示應用中需要的便攜式非標準時序DVI視頻信號。使用STM32生成需要顯示的DVI視頻數據,通過FSMC接口送入FPGA外掛的SDRAM中,FPGA內部視頻信號產生邏輯讀取SDRAM中的數據,按照DVI視頻的時序產生滿足要求的RGB併行視頻數,送入DVI視頻信號編碼芯片產生標準的TMDS串行DVI視頻流。完成瞭基于FPGA的非標準視頻信號髮生器硬件電路設計,產生可以用作工業視頻信號源的DVI視頻信號。以較小的闆卡體積和設備功耗,為便攜式非標準工業DVI視頻應用提供瞭一種新的解決方案。
위료연구만족공업시빈현시응용중수요적편휴식비표준시서DVI시빈신호。사용STM32생성수요현시적DVI시빈수거,통과FSMC접구송입FPGA외괘적SDRAM중,FPGA내부시빈신호산생라집독취SDRAM중적수거,안조DVI시빈적시서산생만족요구적RGB병행시빈수,송입DVI시빈신호편마심편산생표준적TMDS천행DVI시빈류。완성료기우FPGA적비표준시빈신호발생기경건전로설계,산생가이용작공업시빈신호원적DVI시빈신호。이교소적판잡체적화설비공모,위편휴식비표준공업DVI시빈응용제공료일충신적해결방안。
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.