[问答]

ADC PIC32MX230F128H出现问题

问答对人有帮助，内容完整，我也想知道答案 0 您好，我正试图使用ADC，我总是读它的0x3FF，如果有人有任何想法。下面你可以找到代码。这是初始化：这是我如何读取值：谢谢，以上来自于百度翻译以下为原文 Hello, Im trying to use the ADC and i always read 0x3FF on it, please if anyone have any idea. Below you can find the code. This is the initialization: /Setup Ports For Analog pin/ /Configure the ADC Pins as Analog/ PLIB_PORTS_PinModeSelect(PORTS_ID_0, BOARD_TEMP_ADC, PORTS_PIN_MODE_ANALOG); /Select the ADC Reference/ PLIB_ADC_VoltageReferenceSelect(ADC_ID_1, ADC_REFERENCE_VDD_TO_AVSS ); /* Include all channels in scan / PLIB_ADC_InputScanMaskAdd(ADC_ID_1, PORTS_ANALOG_PIN_23); /Internal Counter triggers conversion/ PLIB_ADC_ConversionTriggerSourceSelect(ADC_ID_1, ADC_CONVERSION_TRIGGER_INTERNAL_COUNT); // Sample Time ADC_SampleAcquisitionTimeSet_Default(ADC_ID_1, 60); PLIB_ADC_ConversionClockSet(ADC_ID_1, SYS_CLK_BUS_PERIPHERAL_1, 32); // Set the interrupt PLIB_ADC_SamplesPerInterruptSelect(ADC_ID_1, 1); // Enable scanning of channels PLIB_ADC_MuxAInputScanEnable(ADC_ID_1); // Enable the ADC PLIB_ADC_Enable(ADC_ID_1); // Start Sampling the ADC PLIB_ADC_SampleAutoStartEnable(ADC_ID_1); This is how i read the value: while(!PLIB_ADC_ConversionHasCompleted(ADC_ID_1)) //while(!DRV_ADC_SamplesAvailable()) { /Timeout verification/ timer--; if(timer==0x00) { Nop(); break; } } /Check if variable its not timeout*/ if(timer!=0x00) { read = ADC_ResultGetByIndex_Default(ADC_ID_1,0); } Thanks, 0
2019-1-30 11:01:18　　评论淘帖0 邀请回答您可以邀请以下用户，快速回答问题 × qun333 该类别下有 57 个回答。邀请回答技术发广告该类别下有 56 个回答。邀请回答 caoguiqun 该类别下有 56 个回答。邀请回答 psw30 该类别下有 44 个回答。邀请回答伊丹姿子该类别下有 41 个回答。邀请回答 uwufwjrw 该类别下有 39 个回答。邀请回答 hetao1111 该类别下有 38 个回答。邀请回答 lc123617 该类别下有 35 个回答。邀请回答欧阳大大该类别下有 32 个回答。邀请回答作死不止该类别下有 31 个回答。邀请回答 asd010 该类别下有 31 个回答。邀请回答 60user92 该类别下有 29 个回答。邀请回答 wy8719 该类别下有 29 个回答。邀请回答 haikitty 该类别下有 28 个回答。邀请回答 ju978779 该类别下有 28 个回答。邀请回答嘻嘻爱哈哈该类别下有 28 个回答。邀请回答 xiuzhen122 该类别下有 27 个回答。邀请回答 pol666 该类别下有 27 个回答。邀请回答 ueywyrsdfs 该类别下有 26 个回答。邀请回答 lhly23 该类别下有 25 个回答。邀请回答举报曾佳宁相关推荐 • 不能使用AN1388编译PIC32MX230F128H 2398 • 如何查找的PIC32MX550F256H 705 • 如何在PIC32MX450F128H上禁用模拟功能 1630 • Harmony Configurator不在PIN表中启用USB I/O 1325 • PIC32MX230F064B RTCC时钟源？ 2136 • 引导加载程序开发需要PIC32MX250F256H链接描述文件 1338 • 不会在PIC32MX250F256H中设置U3STAbits.URXDA 2387 • PIC32MX110F016B JTAG操作出现问题 873 • 用PIC32MX530F128H怎么制作CAN-BUS固件？ 1747 • PIC32MX530F128L自举程序问题 994 2个回答

答案对人有帮助，有参考价值 0 这个代码对我来说绝对适用。以上来自于百度翻译以下为原文 /* Select Clock Source / PLIB_ADC_ConversionClockSourceSelect(DRV_ADC_ID_1, ADC_CLOCK_SOURCE_SYSTEM_CLOCK); / Select Clock Prescaler / PLIB_ADC_ConversionClockSet(DRV_ADC_ID_1, SYS_CLK_BUS_PERIPHERAL_1, 320000000); / Select Power Mode / PLIB_ADC_StopInIdleDisable(DRV_ADC_ID_1); / Select Voltage Reference / PLIB_ADC_VoltageReferenceSelect(DRV_ADC_ID_1, ADC_REFERENCE_VDD_TO_AVSS); / Sampling Selections / / Select Sampling Mode / PLIB_ADC_SamplingModeSelect(DRV_ADC_ID_1, ADC_SAMPLING_MODE_MUXA); / Number of Samples Per Interrupt / PLIB_ADC_SamplesPerInterruptSelect(DRV_ADC_ID_1, ADC_1SAMPLE_PER_INTERRUPT); / Conversion Selections / / Select Trigger Source / PLIB_ADC_ConversionTriggerSourceSelect(DRV_ADC_ID_1, ADC_CONVERSION_TRIGGER_INTERNAL_COUNT); / Select Result Format / PLIB_ADC_ResultFormatSelect(DRV_ADC_ID_1, ADC_RESULT_FORMAT_INTEGER_16BIT); / Buffer Mode / PLIB_ADC_ResultBufferModeSelect(DRV_ADC_ID_1, ADC_BUFFER_MODE_ONE_16WORD_BUFFER); / Channel Selections / / MUX A Negative Input Select / PLIB_ADC_MuxChannel0InputNegativeSelect(DRV_ADC_ID_1, ADC_MUX_A, ADC_INPUT_NEGATIVE_VREF_MINUS); PLIB_PORTS_PinModeSelect(PORTS_ID_0, GPIO_ANALOG_PIN_0, PORTS_PIN_MODE_ANALOG); PLIB_PORTS_AnPinsModeSelect(PORTS_ID_0, PORTS_AN_PIN_4, PORTS_PIN_MODE_ANALOG); PLIB_PORTS_PinDirectionInputSet(PORTS_ID_0, GPIO0PORT, GPIO0POS); DRV_ADC_PositiveInputSelect(ADC_MUX_A, ADC_INPUT_POSITIVE_AN4); DRV_ADC_Open(); DRV_ADC_Start(); if(DRV_ADC_SamplesAvailable()) { AdcResult = DRV_ADC_SamplesRead(0); } DRV_ADC_Close(); (dataPtr) = ((uint8_t )&AdcResult + 1); dataPtr ++; dataPtr = ((uint8_t *)&AdcResult); dataPtr++; This code works absolutely fine for me.

2019-1-30 11:10:39 评论举报张珊珊

答案对人有帮助，有参考价值 0 谢谢，非常有帮助！以上来自于百度翻译以下为原文 Thanks, very helpful!

2019-1-30 11:27:59 评论举报陈小艳