[参考译文] MSP430FR6043：USS ADC 原始数据

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https://e2e.ti.com/support/microcontrollers/msp-low-power-microcontrollers-group/msp430/f/msp-low-power-microcontroller-forum/1557280/msp430fr6043-uss-adc-raw-data

器件型号：MSP430FR6043

工具/软件：

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MCU：MSP430FR6043

我想读取 USS ADC 原始数据以确定输出信号的最小值和最大值。我pCapturesBuffermaxCapture从下面的结构中检索了数据（和）。

__persistent USS_Capture_Configuration ussCaptureConfig = {
    .overSampleRate = USS_OVER_SAMPLE_RATE,
    .sampleSize = USS_USER_CONFIG_NUMBER_OF_SAMPLES_PER_CAPTURE,
    .gainRange = USS_GAIN_RANGE,
    .enableWindowHiComp = USS_ENABLE_WINDOW_HI_COMP,
    .enableWindowLoComp = USS_ENABLE_WINDOW_LO_COMP,
    .windowHighThreshold = USS_WINDOW_HIGH_THRESHOLD,
    .windowLowThreshold = USS_WINDOW_LOW_THRESHOLD,
    .agcConstant = USS_AGC_CONSTANT,
    .pCapturesBuffer = &gUSSLEATempMemBlock[0],
    .maxCapture = (sizeof(gUSSLEATempMemBlock) / sizeof(int16_t)),
    .isCapAccumulationEnabled = USS_SW_LIB_ENABLE_ACCUMULATION,
#if USS_SW_LIB_APP_MAX_ACC_BLOCK
    .pAccCaptureBuffer = &gUSSLEARAMReservedAccMemBlock[0],
#endif
};

在代码（见下文）中、我创建了一个新指针来引用pCapturesBuffer地址、并使用它来计算最小值和最大值。

    waterQualitydata.dataLength=gUssSWConfig.captureConfig->maxCapture;
    waterQualitydata.TemppCapturesBuffer=ussCaptureConfig.pCapturesBuffer;
    waterQualitydata.adcMin=*waterQualitydata.TemppCapturesBuffer;
    waterQualitydata.adcMax=*waterQualitydata.TemppCapturesBuffer;
    for(i=0;i<waterQualitydata.dataLength;i++)
    {
        if(waterQualitydata.adcMax<*waterQualitydata.TemppCapturesBuffer)
        {
            waterQualitydata.adcMax=*waterQualitydata.TemppCapturesBuffer;
        }

        if(waterQualitydata.adcMin>*waterQualitydata.TemppCapturesBuffer)
        {
            waterQualitydata.adcMin=*waterQualitydata.TemppCapturesBuffer;
        }
        waterQualitydata.TemppCapturesBuffer++;
    }

实施后、 仅由于上述代码更改、FRAM 消耗增加了 6.4KB。

请帮助我分析一下。

此致、

SaKhan

3 个月前