SDA,SCL任一引脚低电平Busy会置位,例程里面总线如果一直Busy就是锁死,超时100ms复位IIC。#101
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wx85105157 wants to merge 1 commit intoAir-duino:mainfrom
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SDA,SCL任一引脚低电平Busy会置位,例程里面总线如果一直Busy就是锁死,超时100ms复位IIC。#101wx85105157 wants to merge 1 commit intoAir-duino:mainfrom
wx85105157 wants to merge 1 commit intoAir-duino:mainfrom
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解决因干扰,连线虚接,两边设备复位不同步导致IIC通讯失败。
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谢谢,确定是因为busy导致的吗 |
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首先,按照air001的规格书来说,sda或sdl低电平,busy就会置位。 其次,补丁修复后测试过程中,我复位uno主机,air从机,或者晃动杜邦线,也会造成总线锁死。 |
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解决因干扰,连线虚接,两边设备复位不同步等原因导致IIC通讯失败并且总线锁死问题。提高IIC总线的健壮性。