if(KEY_Scan(0)==WKUP_PRES)IWDG_Feed();//如果WK_UP按下,则喂狗 delay_ms(10); }; mode=0,可以忽略灰色阴影的条件。 1s内KEY0按下,即KEY0==0,运行黄色的if函数,这时key_up=0,但看门狗仍旧重启。这个没疑问。 再接着,按下WKUP,但此时key_up==0了,就无法进入到黄色的if中,则永远不会return ...
else if(KEY1==0)return KEY1_PRES;else if(WK_UP==1)return WKUP_PRES;}else if(KEY0==1&&...
STM32F072C8, STM32F072R8, STM32F072V8, STM32F072CB, STM32F072RB, STM32F072VB LQFP100 14x14 mm LQFP64 10x10 mm LQFP48 7x7 mm UFQFPN48 7x7 mm UFBGA100 FBGA 7x7 mm UFBGA64 5x5 mm WLCSP49 3.3x3.1 mm www.st.com Contents STM32F072x8 STM32F072xB 2/128 DS9826 Rev 6 Cont...