A novel memristive synapse model based on the HP memristor is proposed in this paper, which can address problem of synaptic weight infinite modulations. The sliding threshold mechanism Bienenstock-Cooper-Munro rule (BCM) used to redefine memristance (i.e. weight) adjustment process model. Based memristor-based and Leaky Integrate-and-Fire neurons, a spiking neural network (SNN) hardware fragmen...