单片机端口扩展程序，包含串转并，并转串，并行扩展等方案程序。资料丰富，看见了就下吧！-SCM port expansion process, and to include serial and serial to parallel programs such as the expansion process. Informative, see the next!

单片机端口扩展程序，包含串转并，并转串，并行扩展等方案程序。资料丰富，看见了就下吧！-SCM port expansion process, and to include serial and serial to parallel programs such as the expansion process. Informative, see the next!