ProfibusDP_DPV0协议 从站测试例程; 个人原创基于STM32单片机, 纯软件实现ProfibusDP_DPV0从站的功能。(ProfibusDP_DPV0 protocol from the station test routines; personal original based on STM32 MCU, pure software to achieve the function of ProfibusDP_DPV0 slave station.)