It uses omnivision ' s cmos digital color image sensor ov7620 sampling the object image , ti ' s tms320vc5409 dsp as main controller , icsi ' s high speed sdram ic42s16100 as data buffer , altera ' s flex10k series cpld designing sdram interface and time sequence logic 采用了omnivision公司的cmos數(shù)字彩色攝像芯片0v7620采樣物體圖像, titms320vc5409dsp作為主控制器, icsi的高速sdramic42s16100為數(shù)據(jù)緩存, alteraflex10k系列cpld來設(shè)計sdram接口和時序邏輯。
In data sampling circuit , high - speed , complex programmable logic device cpld technique is used . high - speed double - port ram , control sampling time sequence logic , cpu interfaces and bus circuit are implemented in cpld . sampling speed is up to 80mhz , sampling depth is ik - byte , and cpld can fulfill the requirement of the software arithmetic to sampling 在數(shù)據(jù)采集電路中采用了高速復(fù)雜可編程邏輯器件cpld技術(shù),芯片內(nèi)設(shè)計有高速雙端口ram 、控制采樣時序邏輯及cpu接口、總線等電路,采樣速率高達(dá)80mhz ,采樣深度1k字節(jié),很好地解決了超聲波微位移傳感器軟件算法對采樣的要求,并可實現(xiàn)在線升級,大大提高了系統(tǒng)的整體性能。