Device, system and method for testing connection interface by transmitting instruction through circuit board circuit

The invention relates to a device, a system and a method for testing a connection interface through a circuit transmission instruction of a circuit board, which are characterized in that an existing internal integrated circuit on the circuit board to be tested is used for transmitting a control instruction to a testing device connected with the internal integrated circuit through a memory connection interface on the circuit board to be tested; by means of the technical means that the testing device converts the control instruction to test the connected memory connecting interface, the memory connecting interface on the circuit board to be tested can be tested without using an external connecting line, and the technical effect of improving the testing efficiency is achieved. 一种以电路板的电路传送指令测试连接接口的装置、系统及方法，其通过使用待测电路板上既有的内部集成电路传递控制指令给通过待测电路板上的存储器连接接口与内部集成电路连接的测试装置，测试装置转换控制指令以测试所连接的存储器连接接口的技术手段，可以不使用外部连接线测试待测电路板上的存储器连接接口，并达成提高测试效率的技术功效。