STM8S001J3 swim脚设为输出不起作用的问题
请教下大家,上电后延时5S(防swim脚锁死),再把SWIM脚设成输出脚,让它能输出高低电平。但实测,这脚一直是高电平。是否我下面的设置,不足以让SWIM脚成功设成输出?/* 定义TXenableIO PORT与PIN SWIM */
#define TXenable_GPIO_PORT(GPIOD)
#define TXenable_GPIO_PINS(GPIO_PIN_5)
void SWIMset_IO(void)
{
/* 配置TXenableIO 为输出模式 */
GPIO_Init(TXenable_GPIO_PORT, (GPIO_Pin_TypeDef)TXenable_GPIO_PINS,GPIO_MODE_OUT_PP_HIGH_SLOW);//上电时不发射
}
/**
* @函数名 AutoCHK
* @功能
* @参数 无
* @返回值 无
*/
void AutoCHK(void)
{
GPIO_WriteLow(TXenable_GPIO_PORT,(GPIO_Pin_TypeDef)TXenable_GPIO_PINS);
Delay(0xFFFF); Delay(0xFFFF); Delay(0xFFFF); Delay(0xFFFF);
GPIO_WriteHigh(TXenable_GPIO_PORT,(GPIO_Pin_TypeDef)TXenable_GPIO_PINS);
Delay(0xFFFF); Delay(0xFFFF); Delay(0xFFFF); Delay(0xFFFF);
GPIO_WriteLow(TXenable_GPIO_PORT,(GPIO_Pin_TypeDef)TXenable_GPIO_PINS);
Delay(0xFFFF); Delay(0xFFFF); Delay(0xFFFF); Delay(0xFFFF);
GPIO_WriteHigh(TXenable_GPIO_PORT,(GPIO_Pin_TypeDef)TXenable_GPIO_PINS);
Delay(0xFFFF); Delay(0xFFFF); Delay(0xFFFF); Delay(0xFFFF);
}
void main(void)
{
IoSetUp_Init();
/* LED初始化 */
LED_Init();
GPIO_WriteLow(LED_GPIO_PORT,LED_GPIO_PINS);
Delay(0xFFFF);Delay(0xFFFF);Delay(0xFFFF); Delay(0xFFFF); Delay(0xFFFF); Delay(0xFFFF); Delay(0xFFFF);
Delay(0xFFFF);Delay(0xFFFF);Delay(0xFFFF); Delay(0xFFFF); Delay(0xFFFF); Delay(0xFFFF); Delay(0xFFFF);
Delay(0xFFFF);Delay(0xFFFF);Delay(0xFFFF); Delay(0xFFFF); Delay(0xFFFF); Delay(0xFFFF); Delay(0xFFFF);
Delay(0xFFFF);Delay(0xFFFF);Delay(0xFFFF); Delay(0xFFFF); Delay(0xFFFF); Delay(0xFFFF); Delay(0xFFFF);
GPIO_WriteHigh(LED_GPIO_PORT,LED_GPIO_PINS);
Delay(0xFFFF);Delay(0xFFFF);Delay(0xFFFF); Delay(0xFFFF); Delay(0xFFFF); Delay(0xFFFF); Delay(0xFFFF);
Delay(0xFFFF);Delay(0xFFFF);Delay(0xFFFF); Delay(0xFFFF); Delay(0xFFFF); Delay(0xFFFF); Delay(0xFFFF);
if(!GPIO_ReadInputPin(OUTPUTselect_GPIO_PORT, (GPIO_Pin_TypeDef)OUTPUTselect_GPIO_PINS)) OUTPUTmode=RESET;//RESET:有物高
else OUTPUTmode=SET;// SET:
if ((GPIO_ReadInputData(EXTI_GPIO_PORT) & EXTI_GPIO_PINS) == 0x00)//无物
{
GPIO_WriteHigh(LED_GPIO_PORT, LED_GPIO_PINS);
if(OUTPUTmode==RESET) GPIO_WriteLow(OUTPUT_GPIO_PORT,OUTPUT_GPIO_PINS);
else GPIO_WriteHigh(OUTPUT_GPIO_PORT,OUTPUT_GPIO_PINS);
}
else //有物
{
GPIO_WriteLow(LED_GPIO_PORT, LED_GPIO_PINS);
if(OUTPUTmode==RESET) GPIO_WriteHigh(OUTPUT_GPIO_PORT,OUTPUT_GPIO_PINS);
else GPIO_WriteLow(OUTPUT_GPIO_PORT,OUTPUT_GPIO_PINS);
}
/* 外部中断初始化 */
EXTI_Init();
/* 使能总中断 */
enableInterrupts();
SWIMset_IO();
AutoCHK();
while (1)
{
;
}
}
是高低电平延时时间过短,我又是用万用表来测,测不出有变化。用示波器来测就对了 那个pin上对应的其他引脚有没有设置?另外断开外部连接来量测该引脚,用最简单的程序确定你的输出是否正确。
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