與傳統(tǒng)的攝影調(diào)焦系統(tǒng)相比較，針對焦距可以靈活調(diào)整的要求，提出了基于TMS320F240 控制步進(jìn)電機(jī)調(diào)焦的設(shè)計方案，利用F240 控制電機(jī)驅(qū)動器UP-4HB03M 按照計算所得的調(diào)焦軌跡進(jìn)行調(diào)焦。實驗結(jié)果表明，本系統(tǒng)調(diào)焦曲線與理想曲線擬合度較好，拍攝已
知運動軌跡的目標(biāo)，達(dá)到了滿意效果。
關(guān)鍵詞：TMS320F240；步進(jìn)電機(jī)控制器；步進(jìn)電機(jī)
ABSTRACT: Some traditional adjustment of focus photography systems are compared.
According to the requirement of flexible adjustment, a scheme of adjusting focus based on
TMS320F240 by controlling step motor is presented. The focus is adjusted according to the curve, which has been calculated already. Finally the result given by experiment shows that the curve of adjusting focus is fit well with the ideal curve. Shooting the goal of the known movement orbit has reached the satisfactory result.
Key Words: TMS320F240; step motor control; step motor