求助:Boost电路,驱动信号波形振荡,如何解决(附图)

一个简单的boost电路,PWM是由FPGA产生.驱动IC是FAN7390,MOSFET是IRFP4242.关断后PWM 输入信号和驱动输出信号严重振荡.不知道是尖峰电压导致还是地线没处理好,或者其他原因.恳请大家帮忙分析和提供解决方案.多谢!
PCB图和原理图如下:
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输出波形
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