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S320F28027 芯片使用 GPIO34 IO硬件连接驱动一个三极管电路做开关电路，程序烧录后上电不运行程序，把GPIO34浮空是工作正常，GPIO37为浮空状态，应该是进入Boot模式，有什么方法可以正常使用GPIO34管脚昨晚政策IO口使用？
