按键扫描源程序。

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include mainh include systemh include stm32f10xh include platformconfigh define KEYPORT GPIOC Key 按键端口定义 define KEY0 PCin5 define KEY1 PCin2 define KEY2 PCin3 LED LED端口定义 define LED0 PBout5 define LED1 PDout6 define LED2 PDout3 typedef enum KeyScanState0 0x00 KeyScanState1 0x01 KeyScanState2 0x02 KeyScanStateTypedef KeyScanStateTypedef KeyScanState GPIOInitTypeDef GPIOInitStructure static IO uint32t TimingDelay void RCCConfigurationvoid void GPIOConfigurationvoid void keyscanvoid v......