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DS90UB948-Q1: 使用DS90UB947+DS90UB948打开透传功能后,屏幕出现雪花点问题

Part Number: DS90UB948-Q1


我们使用947+948的gpio0透传PWM(pwm频率为200Hz),发现屏幕会出现雪花点和条纹,关闭透传则屏幕显示正常,请问这个是什么原因造成的?有什么解决方案吗?