F2013硬件I2C使用时主机时发送开始信号后对应USISTTIFG和USIIFG均无反应,USICNT不计数,例如写USICNT = 8,执行程序后还是USICNT=8;调试模式下单步执行修改USICNT =0 后,USIIFG不置位,无中断产生
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F2013硬件I2C使用时主机时发送开始信号后对应USISTTIFG和USIIFG均无反应,USICNT不计数,例如写USICNT = 8,执行程序后还是USICNT=8;调试模式下单步执行修改USICNT =0 后,USIIFG不置位,无中断产生