Through studying configuration method and timing of I2C bus,footprint camera was controlled by I2C bus simulated in FPGA to acquire suitable footprint data for corresponding iden-tification arithmetic.

• 通过分析指纹采集头的配置方式和I2C总线时序,采用可编程逻辑器件模拟I2C总线控制指纹采集头,得到适合相应识别算法的指纹数据。