Question

谁能提供个STM32读取某个输入引脚数据的程序，急求

刚接触STM32，还不太会编程序，急需一个读取引脚数据的程序，单片机的具体型号是STM32F103RET7,想读取的引脚是42引脚，它接的是一个内置16位AD的传感器输出，想用串口调试助手在电脑上显示该引脚所接收到的数据
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Answer 1

不用自己写程序，
用stm32f10x_adc.c中的函数调用一下就可以了
提醒一下，在调用ADC_Init之前先把42脚配成AN功能。
然后用
AD_value = ADC_GetConversionValue(ADC1);就可以了。
给你一段参考的
ADC_InitStructure.ADC_Mode = ADC_Mode_Independent;
ADC_InitStructure.ADC_ScanConvMode = DISABLE;
ADC_InitStructure.ADC_ContinuousConvMode = ENABLE;
ADC_InitStructure.ADC_ExternalTrigConv = ADC_ExternalTrigConv_None;
ADC_InitStructure.ADC_DataAlign = ADC_DataAlign_Right;
ADC_InitStructure.ADC_NbrOfChannel = 1;
ADC_Init(ADC1, &ADC_InitStructure);
ADC_RegularChannelConfig(ADC1, ADC_Channel_0, 1, ADC_SampleTime_13Cycles5);

/* Configure high and low analog watchdog thresholds */
ADC_AnalogWatchdogThresholdsConfig(ADC1, 0x0fff, 0x0000);
/* Configure channel8 as the single analog watchdog guarded channel */
ADC_AnalogWatchdogSingleChannelConfig(ADC1, ADC_Channel_0);
/* Enable analog watchdog on one regular channel */
ADC_AnalogWatchdogCmd(ADC1, ADC_AnalogWatchdog_SingleRegEnable);

/* Enable ADC1 */
ADC_Cmd(ADC1, ENABLE);

ADC_ResetCalibration(ADC1);
/* Check the end of ADC1 reset calibration register */
while(ADC_GetResetCalibrationStatus(ADC1));

/* Start ADC1 calibaration */
ADC_StartCalibration(ADC1);
/* Check the end of ADC1 calibration */
while(ADC_GetCalibrationStatus(ADC1));
/* Start ADC1 Software Conversion */
ADC_SoftwareStartConvCmd(ADC1, ENABLE);

AD_value = ADC_GetConversionValue(ADC1);