CC1310: ad问题

anne

Part Number: CC1310

4*4 的芯片

我把5,6,7口设置成一般io，8,9设置成ad，这样配置的：

const ADCCC26XX_HWAttrs adcCC26xxHWAttrs[CC1310_LAUNCHXL_ADCCOUNT] = {
// {
// .adcDIO = CC1310_LAUNCHXL_DIO5_ANALOG,
// .adcCompBInput = ADC_COMPB_IN_AUXIO4,
// .refSource = ADCCC26XX_FIXED_REFERENCE,
// .samplingDuration = ADCCC26XX_SAMPLING_DURATION_2P7_US,
// .inputScalingEnabled = true,
// .triggerSource = ADCCC26XX_TRIGGER_MANUAL,
// .returnAdjustedVal = false
// },
// {
// .adcDIO = CC1310_LAUNCHXL_DIO6_ANALOG,
// .adcCompBInput = ADC_COMPB_IN_AUXIO3,
// .refSource = ADCCC26XX_FIXED_REFERENCE,
// .samplingDuration = ADCCC26XX_SAMPLING_DURATION_2P7_US,
// .inputScalingEnabled = true,
// .triggerSource = ADCCC26XX_TRIGGER_MANUAL,
// .returnAdjustedVal = false
// },
// {
// .adcDIO = CC1310_LAUNCHXL_DIO7_ANALOG,
// .adcCompBInput = ADC_COMPB_IN_AUXIO2,
// .refSource = ADCCC26XX_FIXED_REFERENCE,
// .samplingDuration = ADCCC26XX_SAMPLING_DURATION_2P7_US,
// .inputScalingEnabled = true,
// .triggerSource = ADCCC26XX_TRIGGER_MANUAL,
// .returnAdjustedVal = false
// },
{
.adcDIO = CC1310_LAUNCHXL_DIO8_ANALOG,
.adcCompBInput = ADC_COMPB_IN_AUXIO1,
.refSource = ADCCC26XX_FIXED_REFERENCE,
.samplingDuration = ADCCC26XX_SAMPLING_DURATION_2P7_US,
.inputScalingEnabled = true,
.triggerSource = ADCCC26XX_TRIGGER_MANUAL,
.returnAdjustedVal = false
},
{
.adcDIO = CC1310_LAUNCHXL_DIO9_ANALOG,
.adcCompBInput = ADC_COMPB_IN_AUXIO0,
.refSource = ADCCC26XX_FIXED_REFERENCE,
.samplingDuration = ADCCC26XX_SAMPLING_DURATION_2P7_US,
.inputScalingEnabled = true,
.triggerSource = ADCCC26XX_TRIGGER_MANUAL,
.returnAdjustedVal = false
},
// {
// .adcDIO = CC1310_LAUNCHXL_DIO28_ANALOG,
// .adcCompBInput = ADC_COMPB_IN_AUXIO2,
// .refSource = ADCCC26XX_FIXED_REFERENCE,
// .samplingDuration = ADCCC26XX_SAMPLING_DURATION_2P7_US,
// .inputScalingEnabled = true,
// .triggerSource = ADCCC26XX_TRIGGER_MANUAL,
// .returnAdjustedVal = false
// },
// {
// .adcDIO = CC1310_LAUNCHXL_DIO29_ANALOG,
// .adcCompBInput = ADC_COMPB_IN_AUXIO1,
// .refSource = ADCCC26XX_FIXED_REFERENCE,
// .samplingDuration = ADCCC26XX_SAMPLING_DURATION_2P7_US,
// .inputScalingEnabled = true,
// .triggerSource = ADCCC26XX_TRIGGER_MANUAL,
// .returnAdjustedVal = false
// },
// {
// .adcDIO = CC1310_LAUNCHXL_DIO30_ANALOG,
// .adcCompBInput = ADC_COMPB_IN_AUXIO0,
// .refSource = ADCCC26XX_FIXED_REFERENCE,
// .samplingDuration = ADCCC26XX_SAMPLING_DURATION_10P9_MS,
// .inputScalingEnabled = true,
// .triggerSource = ADCCC26XX_TRIGGER_MANUAL,
// .returnAdjustedVal = false
// },
{
.adcDIO = PIN_UNASSIGNED,
.adcCompBInput = ADC_COMPB_IN_DCOUPL,
.refSource = ADCCC26XX_FIXED_REFERENCE,
.samplingDuration = ADCCC26XX_SAMPLING_DURATION_2P7_US,
.inputScalingEnabled = true,
.triggerSource = ADCCC26XX_TRIGGER_MANUAL,
.returnAdjustedVal = false
},
{
.adcDIO = PIN_UNASSIGNED,
.adcCompBInput = ADC_COMPB_IN_VSS,
.refSource = ADCCC26XX_FIXED_REFERENCE,
.samplingDuration = ADCCC26XX_SAMPLING_DURATION_2P7_US,
.inputScalingEnabled = true,
.triggerSource = ADCCC26XX_TRIGGER_MANUAL,
.returnAdjustedVal = false
},
{
.adcDIO = PIN_UNASSIGNED,
.adcCompBInput = ADC_COMPB_IN_VDDS,
.refSource = ADCCC26XX_FIXED_REFERENCE,
.samplingDuration = ADCCC26XX_SAMPLING_DURATION_2P7_US,
.inputScalingEnabled = true,
.triggerSource = ADCCC26XX_TRIGGER_MANUAL,
.returnAdjustedVal = false
}
};

typedef enum CC1310_LAUNCHXL_ADCBuf0ChannelName {
// CC1310_LAUNCHXL_ADCBUF0CHANNEL0 = 0,
// CC1310_LAUNCHXL_ADCBUF0CHANNEL1,
// CC1310_LAUNCHXL_ADCBUF0CHANNEL2,
CC1310_LAUNCHXL_ADCBUF0CHANNEL3,
CC1310_LAUNCHXL_ADCBUF0CHANNEL4,
// CC1310_LAUNCHXL_ADCBUF0CHANNEL5,
// CC1310_LAUNCHXL_ADCBUF0CHANNEL6,
// CC1310_LAUNCHXL_ADCBUF0CHANNEL7,
CC1310_LAUNCHXL_ADCBUF0CHANNELVDDS,
CC1310_LAUNCHXL_ADCBUF0CHANNELDCOUPL,
CC1310_LAUNCHXL_ADCBUF0CHANNELVSS,

CC1310_LAUNCHXL_ADCBUF0CHANNELCOUNT
} CC1310_LAUNCHXL_ADCBuf0ChannelName;

/*!
* @def CC1310_LAUNCHXL_ADCName
* @brief Enum of ADCs
*/
typedef enum CC1310_LAUNCHXL_ADCName {
// CC1310_LAUNCHXL_ADC0 = 0,
// CC1310_LAUNCHXL_ADC1,
// CC1310_LAUNCHXL_ADC2,
CC1310_LAUNCHXL_ADC3,
CC1310_LAUNCHXL_ADC4,
// CC1310_LAUNCHXL_ADC5,
// CC1310_LAUNCHXL_ADC6,
// CC1310_LAUNCHXL_ADC7,
CC1310_LAUNCHXL_ADCDCOUPL,
CC1310_LAUNCHXL_ADCVSS,
CC1310_LAUNCHXL_ADCVDDS,

CC1310_LAUNCHXL_ADCCOUNT
} CC1310_LAUNCHXL_ADCName;

调用ADC_open(Board_ADC3, &params);或者ADC_open(Board_ADC0, &params);结果都不对。

请问可以这样用吗？

2 年多前

0 Nick Sun 2 年多前

TI__Genius 15940 points

您好，

感谢您的对TI产品的关注！为更加有效地解决您的问题，我需要多一些时间查看这个问题，稍后会为您解答。

0 Nick Sun 2 年多前

TI__Genius 15940 points

您好，

这边有一些问题想要问您：

与哪些值不同的 ADC 输入不同？两个引脚是否连接到同一个源？您是使用的什么 SDK 版本？

0 anne 2 年多前

Prodigy 50 points

你好：

simplelink_cc13x0_sdk_4_20_01_03

我现在的现象是只有把信号接到dio8 ，AD_open(Board_ADC0, &params);才能得到正确结果。

把信号接到其他ad口，相应设置好后，也不行，都是同一个信号

另外我的问题就是，这5个ad口不用同时定义成ad吧？为什么只有把他们都定义成ad口，信号接到dio8，采用通道0，这三个条件同时成立，才能得到正确结果。

0 Nick Sun 2 年多前回复 anne

TI__Genius 15940 points

您好，

我们工程师不确定是否理解您的问题。您是需要2个(pin8和pin9)，还是5个模拟输入？

您是否能分享您这样操作试图实现的目标是什么？

0 anne 2 年多前回复 Nick Sun

Prodigy 50 points

我现在用一个模拟信号放在不同的通道做转化实验

当把信号放到dio8时

adcBuf = ADCBuf_open(CC1310_LAUNCHXL_ADCBUF0CHANNEL0,&adcBufParams);

/* Configure the conversion struct */
continuousConversion.arg = NULL;
continuousConversion.adcChannel = 1;
continuousConversion.sampleBuffer = sampleBufferOne;
continuousConversion.sampleBufferTwo = sampleBufferTwo;
continuousConversion.samplesRequestedCount = ADCBUFFERSIZE;

如上设置ad，可以得到正确结果；

当把信号放到dio9时，

adcBuf = ADCBuf_open(CC1310_LAUNCHXL_ADCBUF0CHANNEL0,&adcBufParams);

/* Configure the conversion struct */
continuousConversion.arg = NULL;
continuousConversion.adcChannel = 0;
continuousConversion.sampleBuffer = sampleBufferOne;
continuousConversion.sampleBufferTwo = sampleBufferTwo;
continuousConversion.samplesRequestedCount = ADCBUFFERSIZE;

continuousConversion.adcChannel 设置成0,1,2,3,4 均不能得到正确结果。

把信号放到dio5，dio7时，也是如此，无论通道设置成0-4的那一路，转换结果都不正确

不知道我表达清楚没有。

转化程序我用的是sdk 01-03 里面的例程，连续转换。我用ti的1350仿真板（7*7把这个模拟信号放到任何一个通道，都能转化正确。我自己做的板子，只有放到dio8才能正确。

0 Nick Sun 2 年多前回复 anne

TI__Genius 15940 points

您好，

收到您的跟进，帮您同步工程师，有回复即刻联系您。

0 Nick Sun 2 年多前回复 anne

TI__Genius 15940 points

您好，

从布局来看，DIO9 (针脚26)是否为常闭？（From the layout it looks like DIO9 (pin 26) is NC? ）

0 anne 2 年多前回复 Nick Sun

Prodigy 50 points

对，dio6，dio9都是悬空的，没有接

0 Nick Sun 2 年多前回复 anne

TI__Genius 15940 points

您好，

收到您的跟进，帮您同步工程师，有回复即刻联系您。

0 Nick Sun 2 年多前回复 Nick Sun

TI__Genius 15940 points

您好，

我们认为需要更多 IO 配置，因为7x7 IO 与4x4封装的 IO 不同。

查看该文档：https://dev.ti.com/tirex/explore/content/simplelink_cc13x0_sdk_4_20_02_07/docs/tidrivers/doxygen/html/_a_d_c_buf_c_c26_x_x_8h.html

您似乎必须按如下方式配置 ADC IO：

DIO8应为：

{
.adcDIO = CC1310_LAUNCHXL_DIO8_ANALOG,  //Should be = to IOID_8
.adcCompBInput = ADC_COMPB_IN_AUXIO4,
.refSource = ADCCC26XX_FIXED_REFERENCE,
.samplingDuration = ADCCC26XX_SAMPLING_DURATION_2P7_US,
.inputScalingEnabled = true,
.triggerSource = ADCCC26XX_TRIGGER_MANUAL,
.returnAdjustedVal = false
},

DIO9应为：

{
.adcDIO = CC1310_LAUNCHXL_DIO9_ANALOG,  //Should be = to IOID_9
.adcCompBInput = ADC_COMPB_IN_AUXIO3,
.refSource = ADCCC26XX_FIXED_REFERENCE,
.samplingDuration = ADCCC26XX_SAMPLING_DURATION_2P7_US,
.inputScalingEnabled = true,
.triggerSource = ADCCC26XX_TRIGGER_MANUAL,
.returnAdjustedVal = false
},

您可以操作一下，然后和我们说一下结果如何。希望能有所帮助。

0 anne 2 年多前回复 Nick Sun

Prodigy 50 points

您好，按您说的设置，终于可以正常采样了。多谢！

+1 Nick Sun 2 年多前回复 anne

TI__Genius 15940 points

您好，

很高兴您的问题被解决。您可以点击已解决按钮表示问题已被解决。

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CC1310: ad问题