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AFE4490驱动问题

Other Parts Discussed in Thread: AFE4490

您好

最近在调试AFE4490芯片,SPI读写寄存器正常,初始化配置是按官方提供的代码进行配置,但是不能正常工作,不明白为什么。目前MISO、MOSI、CLK、CE都接了控制GPIO,PD_ALM、LED_ALM、DIAG_END、AFE_PDN均悬空。不知道会不会影响芯片工作。此外RDY连接中断输入上升沿触发。目前代码不进中断,晶振不工作。不明白原因。