论文部分内容阅读
介绍了以 FPGA为核心芯片的高速图形采集系统,图形采集频率可达 13.5MHz。在该系统中,还采用了 PHILIP公司最新推出的视频 A/ D芯片 SAA 7111,将电视信号转换咸数字信号,并由FPGA作为控制器将数字信号存入256KRAM,以便DSP芯片根据需要进行预处理,提取有用数据。
Introduced the FPGA as the core chip of high-speed graphics acquisition system, graphics capture frequency up to 13.5MHz. In this system, PHILI company also used the latest video A / D chip SAA 7111, the television signal conversion salty digital signals, and by the FPGA controller as a digital signal into 256KRAM, so that the DSP chip pretreatment as needed , Extract useful data.