我现在的情况是单片机的SPI口已经可以配置1258,寄存器配置的值读回后经比较是正确的,但是,我把开始转换start引脚拉高后,1258的ready信号输出引脚一直是低电平状态,不时有脉冲输出,但脉冲高电平的宽度在50ns左右,频率23k左右,导致我的单片机引脚检测不到中断,不能读;正常的是不是应该是高电平状态下输出脉冲,请问这是为什么那
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