Test system based on ARM+CPLD for head control part of computerized flat knitting machine

YAO Lu， DONG Lin-xi
（Key Lab of RF Circuit and System， Ministry of Education， Hangzhou Dianzi University， Hangzhou 310018， China）

Abstract： In order to solve the problem of reliability testing of the head control part of computerized flat knitting machine，the complete test system of the circuit boards of head control part was investigated. After the analysis of the requirement of the system and the feature of the signals，a system used LM3S5R31 of TI as a centre part and a CPLD as a auxiliary control part was established. A method was presented to encoding the signal of the former and the latter component in the same signal path. The system were evaluated on the accuracy，reliability and the efficiency，the performance of the real object were tested. The experimental results show that this system can solve problems such as locate and solve the problems of head control part of computerized flat knitting machine quickly.
Key words： computerized flat knitting machine； test system； ARM； CPLD