使用 STM32CubeMX 配置ADC引脚，如下：

其中 IN1 和IN2 短路接在一起接1.7V左右 ，IN3和IN4短路接在一起接0.16V左右。

ADC 配置为单端，软件触发ADC采样，用来一个一个采样验证问题：

在软件中，修改通道，软件触发采样，存到数组中：

sConfig.Channel = ADC_CHANNEL_1; sConfig.Rank = ADC_REGULAR_RANK_1; sConfig.SingleDiff = ADC_SINGLE_ENDED; sConfig.SamplingTime = ADC_SAMPLETIME_61CYCLES_5; sConfig.OffsetNumber = ADC_OFFSET_NONE; sConfig.Offset = 0;

if (HAL_ADC_ConfigChannel(&hadc1, &sConfig) != HAL_OK) { //Error_Handler(); } HAL_ADC_Start(&hadc1); HAL_ADC_PollForConversion(&hadc1, 10); data[0][j]=HAL_ADC_GetValue(&hadc1);

sConfig.Channel = ADC_CHANNEL_2;
sConfig.Rank = ADC_REGULAR_RANK_1;
sConfig.SingleDiff = ADC_SINGLE_ENDED;
sConfig.SamplingTime = ADC_SAMPLETIME_61CYCLES_5;
sConfig.OffsetNumber = ADC_OFFSET_NONE;
sConfig.Offset = 0;

if (HAL_ADC_ConfigChannel(&hadc1, &sConfig) != HAL_OK)
    {
        Error_Handler();
    }
    HAL_ADC_Start(&hadc1);
HAL_ADC_PollForConversion(&hadc1, 10);
data[1][j]=HAL_ADC_GetValue(&hadc1);

sConfig.Channel = ADC_CHANNEL_3;
sConfig.Rank = ADC_REGULAR_RANK_1;
sConfig.SingleDiff = ADC_SINGLE_ENDED;
sConfig.SamplingTime = ADC_SAMPLETIME_61CYCLES_5;
sConfig.OffsetNumber = ADC_OFFSET_NONE;
sConfig.Offset = 0;

if (HAL_ADC_ConfigChannel(&hadc1, &sConfig) != HAL_OK)
    {
        Error_Handler();
    }
    HAL_ADC_Start(&hadc1);
HAL_ADC_PollForConversion(&hadc1, 10);
data[2][j]=HAL_ADC_GetValue(&hadc1);

sConfig.Channel = ADC_CHANNEL_4;
sConfig.Rank = ADC_REGULAR_RANK_1;
sConfig.SingleDiff = ADC_SINGLE_ENDED;
sConfig.SamplingTime = ADC_SAMPLETIME_61CYCLES_5;
sConfig.OffsetNumber = ADC_OFFSET_NONE;
sConfig.Offset = 0;

if (HAL_ADC_ConfigChannel(&hadc1, &sConfig) != HAL_OK)
    {
        Error_Handler();
    }
    HAL_ADC_Start(&hadc1);
HAL_ADC_PollForConversion(&hadc1, 10);
data[3][j]=HAL_ADC_GetValue(&hadc1);

sConfig.Channel = ADC_CHANNEL_5;
sConfig.Rank = ADC_REGULAR_RANK_1;
sConfig.SingleDiff = ADC_SINGLE_ENDED;
sConfig.SamplingTime = ADC_SAMPLETIME_61CYCLES_5;
sConfig.OffsetNumber = ADC_OFFSET_NONE;
sConfig.Offset = 0;

if (HAL_ADC_ConfigChannel(&hadc1, &sConfig) != HAL_OK)
    {
        Error_Handler();
    }
    HAL_ADC_Start(&hadc1);
HAL_ADC_PollForConversion(&hadc1, 10);
data[4][j]=HAL_ADC_GetValue(&hadc1);

测试发现，data[0][ ]，没有数值，data[1][]与data[2][]数值相同，data[3][]与data[4][]数值相同。

还有另外一个对应问题，在使用INA 15和INA11中，相同的操作： 其中INA15 接0.85V，INA11接近0V

`sConfig.Channel = ADC_CHANNEL_11; sConfig.Rank = ADC_REGULAR_RANK_1; sConfig.SingleDiff = ADC_SINGLE_ENDED; sConfig.SamplingTime = ADC_SAMPLETIME_61CYCLES_5; sConfig.OffsetNumber = ADC_OFFSET_NONE; sConfig.Offset = 0;

        if (HAL_ADC_ConfigChannel(&hadc1, &sConfig) != HAL_OK)
            {
                Error_Handler();
            }
            HAL_ADC_Start(&hadc1);
        HAL_ADC_PollForConversion(&hadc1, 10);
        data[10][j]=HAL_ADC_GetValue(&hadc1);

        sConfig.Channel = ADC_CHANNEL_12;
        sConfig.Rank = ADC_REGULAR_RANK_1;
        sConfig.SingleDiff = ADC_SINGLE_ENDED;
        sConfig.SamplingTime = ADC_SAMPLETIME_61CYCLES_5;
        sConfig.OffsetNumber = ADC_OFFSET_NONE;
        sConfig.Offset = 0;

        if (HAL_ADC_ConfigChannel(&hadc1, &sConfig) != HAL_OK)
            {
                Error_Handler();
            }
            HAL_ADC_Start(&hadc1);
        HAL_ADC_PollForConversion(&hadc1, 10);
        data[11][j]=HAL_ADC_GetValue(&hadc1);

        sConfig.Channel = ADC_CHANNEL_13;
        sConfig.Rank = ADC_REGULAR_RANK_1;
        sConfig.SingleDiff = ADC_SINGLE_ENDED;
        sConfig.SamplingTime = ADC_SAMPLETIME_61CYCLES_5;
        sConfig.OffsetNumber = ADC_OFFSET_NONE;
        sConfig.Offset = 0;

        if (HAL_ADC_ConfigChannel(&hadc1, &sConfig) != HAL_OK)
            {
                Error_Handler();
            }
            HAL_ADC_Start(&hadc1);
        HAL_ADC_PollForConversion(&hadc1, 10);
        data[12][j]=HAL_ADC_GetValue(&hadc1);

        sConfig.Channel = ADC_CHANNEL_14;
        sConfig.Rank = ADC_REGULAR_RANK_1;
        sConfig.SingleDiff = ADC_SINGLE_ENDED;
        sConfig.SamplingTime = ADC_SAMPLETIME_61CYCLES_5;
        sConfig.OffsetNumber = ADC_OFFSET_NONE;
        sConfig.Offset = 0;

        if (HAL_ADC_ConfigChannel(&hadc1, &sConfig) != HAL_OK)
            {
                Error_Handler();
            }
            HAL_ADC_Start(&hadc1);
        HAL_ADC_PollForConversion(&hadc1, 10);
        data[13][j]=HAL_ADC_GetValue(&hadc1);

        sConfig.Channel = ADC_CHANNEL_15;
        sConfig.Rank = ADC_REGULAR_RANK_1;
        sConfig.SingleDiff = ADC_SINGLE_ENDED;
        sConfig.SamplingTime = ADC_SAMPLETIME_61CYCLES_5;
        sConfig.OffsetNumber = ADC_OFFSET_NONE;
        sConfig.Offset = 0;

        if (HAL_ADC_ConfigChannel(&hadc1, &sConfig) != HAL_OK)
            {
                Error_Handler();
            }
            HAL_ADC_Start(&hadc1);
        HAL_ADC_PollForConversion(&hadc1, 10);
        data[14][j]=HAL_ADC_GetValue(&hadc1);`

结果显示ina11有数据

对这个对应关系搞得头大，后面项目还需要使用这个芯片，需要确认对应关系