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<blockquote data-quote="OrangeJuice" data-source="post: 739937">Spresense+Spresense拡張ボードの環境でIIS3DWBの加速度センサを利用したいと考えています．事前にArduinoでは動作確認済みのコードを使って，Spresenseで動作させようとしたところ「IIS3DWB not functioning!」と出て，getChipID関数で正しくデバイスのIDが取得できません．ソースコードを添付しますので，何かお気づきの点があればご助言いただきたいです．なお，拡張ボードの電圧設定は5V，IIS3DWBとSpresenseの結線は以下の通りです．<table style='width: 100%'><tr><th>Spresense</th><th>IIS3DWB</th></tr><tr><td>3.3V</td><td>3.3V</td></tr><tr><td>SPI CS(D10)</td><td>SS</td></tr><tr><td>SPI MOSI(D11)</td><td>MOSI</td></tr><tr><td>SPI MISO(D12)</td><td>MISO</td></tr><tr><td>SPI SCK(D13)</td><td>SCK</td></tr><tr><td>GND</td><td>GND</td></tr></table>[CODE]&nbsp; &nbsp; #include &lt;IIS3DWB.h&gt;&nbsp; &nbsp; #include &quot;SPI.h&quot;&nbsp; &nbsp; #define SerialDebug true&nbsp; // set to true to get Serial output for debugging&nbsp; &nbsp; #define CSPIN&nbsp; &nbsp; 10&nbsp; &nbsp; /* Specify sensor parameters (sample rate is same as the bandwidth 6.3 kHz by default)&nbsp; &nbsp;&nbsp; * choices are:&nbsp; AFS_2G, AFS_4G, AFS_8G, AFS_16G&nbsp; &nbsp; &nbsp; */ &nbsp; &nbsp; uint8_t Ascale = AFS_4G;&nbsp; &nbsp; &nbsp; &nbsp; float aRes;&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; // scale resolutions per LSB for the accel &nbsp; &nbsp; float accelBias[3] = {0.0f, 0.0f, 0.0f}; // offset biases for the accel &nbsp; &nbsp; int16_t IIS3DWBData[4] = {0};&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; // Stores the 16-bit signed sensor output&nbsp; &nbsp; float ax, ay, az, accelTemp;&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp; // variables to hold latest accel data values &nbsp; &nbsp; uint8_t IIS3DWBstatus;&nbsp; &nbsp; &nbsp; &nbsp; volatile bool IIS3DWB_DataReady = true, IIS3DWB_Wakeup = true;&nbsp; &nbsp; IIS3DWB IIS3DWB(CSPIN); // instantiate IIS3DWB class&nbsp; &nbsp; void setup() &nbsp; &nbsp; {&nbsp; &nbsp; &nbsp; Serial.begin(115200);&nbsp; &nbsp; &nbsp; delay(4000);&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; SPI.begin(); // Start SPI serial peripheral&nbsp; &nbsp; &nbsp; Serial.print(&quot;SPI Start!\n&quot;);&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; // Configure SPI ship select for sensor breakout&nbsp; &nbsp; &nbsp; pinMode(CSPIN, OUTPUT);&nbsp; &nbsp; &nbsp; digitalWrite(CSPIN, HIGH); // disable SPI at start&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; // Read the IIS3DWB Chip ID register, this is a good test of communication&nbsp; &nbsp; &nbsp; Serial.println(&quot;IIS3DWB accel...&quot;);&nbsp; &nbsp; &nbsp; uint8_t c = IIS3DWB.getChipID();&nbsp; // Read CHIP_ID register for IIS3DWB&nbsp; &nbsp; &nbsp; Serial.print(&quot;IIS3DWB &quot;); Serial.print(&quot;I AM &quot;); Serial.print(c, HEX); Serial.print(&quot; I should be &quot;); Serial.println(0x7B, HEX);&nbsp; &nbsp; &nbsp; Serial.println(&quot; &quot;);&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; if(c == 0x7B) // check if all SPI sensors have acknowledged&nbsp; &nbsp; &nbsp; {&nbsp; &nbsp; &nbsp;&nbsp; Serial.println(&quot;IIS3DWB is online...&quot;);&nbsp; &nbsp; &nbsp; &nbsp;&nbsp; Serial.println(&quot; &quot;);&nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp; // reset IIS3DWB to start fresh&nbsp; &nbsp; &nbsp;&nbsp; IIS3DWB.reset();&nbsp; &nbsp; &nbsp;&nbsp; // get accel sensor resolution, only need to do this once&nbsp; &nbsp; &nbsp;&nbsp; aRes = IIS3DWB.getAres(Ascale);&nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp; IIS3DWB.selfTest();&nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp; IIS3DWB.init(Ascale); // configure IIS3DWB&nbsp; &nbsp; &nbsp; &nbsp;&nbsp; IIS3DWB.offsetBias(accelBias);&nbsp; &nbsp; &nbsp;&nbsp; Serial.println(&quot;accel biases (mg)&quot;); Serial.println(1000.0f * accelBias[0]); Serial.println(1000.0f * accelBias[1]); Serial.println(1000.0f * accelBias[2]);&nbsp; &nbsp; &nbsp;&nbsp; Serial.println(&quot; &quot;);&nbsp; &nbsp; &nbsp;&nbsp; delay(1000); &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; }&nbsp; &nbsp; &nbsp; else &nbsp; &nbsp; &nbsp; {&nbsp; &nbsp; &nbsp; if(c != 0x6A) Serial.println(&quot; IIS3DWB not functioning!&quot;); &nbsp; &nbsp; &nbsp; while(1){};&nbsp; &nbsp; &nbsp; }&nbsp; &nbsp; &nbsp; &nbsp;&nbsp; }&nbsp; &nbsp; /* End of setup */&nbsp; &nbsp; void loop() {&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; if(IIS3DWB_DataReady)&nbsp; // Handle data ready condition&nbsp; &nbsp; &nbsp; {&nbsp; &nbsp; &nbsp; &nbsp; IIS3DWBstatus = IIS3DWB.DRstatus(); // read data ready status&nbsp; &nbsp; &nbsp; &nbsp; if (IIS3DWBstatus &amp; 0x01) {&nbsp; &nbsp; &nbsp; &nbsp;&nbsp; // if new accel data is available, read it&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; IIS3DWB.readAccelData(IIS3DWBData);&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; // Now we&#039;ll calculate the accleration value into actual g&#039;s&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; ax = (float)IIS3DWBData[0]*aRes - accelBias[0];&nbsp; // get actual g value, this depends on scale being set&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; ay = (float)IIS3DWBData[1]*aRes - accelBias[1];&nbsp;&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; az = (float)IIS3DWBData[2]*aRes - accelBias[2];&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp; }&nbsp; &nbsp; &nbsp; &nbsp;&nbsp; }&nbsp; // end of data ready interrupt handlin&nbsp; &nbsp; &nbsp;&nbsp; // end sensor interrupt handling&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; if(SerialDebug) { // report latest accel data&nbsp; &nbsp; &nbsp; &nbsp; Serial.print(&quot;ax = &quot;); Serial.print((int)1000*ax);&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; Serial.print(&quot; ay = &quot;); Serial.print((int)1000*ay); &nbsp; &nbsp; &nbsp; &nbsp; Serial.print(&quot; az = &quot;); Serial.print((int)1000*az); Serial.println(&quot; mg&quot;);&nbsp; &nbsp; &nbsp; &nbsp; }&nbsp; &nbsp; &nbsp; IIS3DWBData[3] = IIS3DWB.readTempData(); // get IIS3DWB chip temperature&nbsp; &nbsp; &nbsp; accelTemp = ((float) IIS3DWBData[3]) / 256.0f + 25.0f; // Accel chip temperature in degrees Centigrade&nbsp; &nbsp; &nbsp; // Print temperature in degrees Centigrade&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; if(SerialDebug) {&nbsp; &nbsp; &nbsp; &nbsp; Serial.print(&quot;IIS3DWB temperature is &quot;);&nbsp; Serial.print(accelTemp, 1);&nbsp; Serial.println(&quot; degrees C&quot;); // Print T values to tenths of a degree C&nbsp; &nbsp; &nbsp; &nbsp; }&nbsp; &nbsp; }&nbsp; &nbsp; /*&nbsp; End of main loop */[/CODE]</blockquote>

[QUOTE="OrangeJuice, post: 739937"] Spresense+Spresense拡張ボードの環境でIIS3DWBの加速度センサを利用したいと考えています．事前にArduinoでは動作確認済みのコードを使って，Spresenseで動作させようとしたところ「IIS3DWB not functioning!」と出て，getChipID関数で正しくデバイスのIDが取得できません．ソースコードを添付しますので，何かお気づきの点があればご助言いただきたいです．なお，拡張ボードの電圧設定は5V，IIS3DWBとSpresenseの結線は以下の通りです． [TABLE] [TR] [TH]Spresense[/TH] [TH]IIS3DWB[/TH] [/TR] [TR] [TD]3.3V[/TD] [TD]3.3V[/TD] [/TR] [TR] [TD]SPI CS(D10)[/TD] [TD]SS[/TD] [/TR] [TR] [TD]SPI MOSI(D11)[/TD] [TD]MOSI[/TD] [/TR] [TR] [TD]SPI MISO(D12)[/TD] [TD]MISO[/TD] [/TR] [TR] [TD]SPI SCK(D13)[/TD] [TD]SCK[/TD] [/TR] [TR] [TD]GND[/TD] [TD]GND[/TD] [/TR] [/TABLE] [CODE] #include <IIS3DWB.h> #include "SPI.h" #define SerialDebug true // set to true to get Serial output for debugging #define CSPIN 10 /* Specify sensor parameters (sample rate is same as the bandwidth 6.3 kHz by default) * choices are: AFS_2G, AFS_4G, AFS_8G, AFS_16G */ uint8_t Ascale = AFS_4G; float aRes; // scale resolutions per LSB for the accel float accelBias[3] = {0.0f, 0.0f, 0.0f}; // offset biases for the accel int16_t IIS3DWBData[4] = {0}; // Stores the 16-bit signed sensor output float ax, ay, az, accelTemp; // variables to hold latest accel data values uint8_t IIS3DWBstatus; volatile bool IIS3DWB_DataReady = true, IIS3DWB_Wakeup = true; IIS3DWB IIS3DWB(CSPIN); // instantiate IIS3DWB class void setup() { Serial.begin(115200); delay(4000); SPI.begin(); // Start SPI serial peripheral Serial.print("SPI Start!\n"); // Configure SPI ship select for sensor breakout pinMode(CSPIN, OUTPUT); digitalWrite(CSPIN, HIGH); // disable SPI at start // Read the IIS3DWB Chip ID register, this is a good test of communication Serial.println("IIS3DWB accel..."); uint8_t c = IIS3DWB.getChipID(); // Read CHIP_ID register for IIS3DWB Serial.print("IIS3DWB "); Serial.print("I AM "); Serial.print(c, HEX); Serial.print(" I should be "); Serial.println(0x7B, HEX); Serial.println(" "); if(c == 0x7B) // check if all SPI sensors have acknowledged { Serial.println("IIS3DWB is online..."); Serial.println(" "); // reset IIS3DWB to start fresh IIS3DWB.reset(); // get accel sensor resolution, only need to do this once aRes = IIS3DWB.getAres(Ascale); IIS3DWB.selfTest(); IIS3DWB.init(Ascale); // configure IIS3DWB IIS3DWB.offsetBias(accelBias); Serial.println("accel biases (mg)"); Serial.println(1000.0f * accelBias[0]); Serial.println(1000.0f * accelBias[1]); Serial.println(1000.0f * accelBias[2]); Serial.println(" "); delay(1000); } else { if(c != 0x6A) Serial.println(" IIS3DWB not functioning!"); while(1){}; } } /* End of setup */ void loop() { if(IIS3DWB_DataReady) // Handle data ready condition { IIS3DWBstatus = IIS3DWB.DRstatus(); // read data ready status if (IIS3DWBstatus & 0x01) { // if new accel data is available, read it IIS3DWB.readAccelData(IIS3DWBData); // Now we'll calculate the accleration value into actual g's ax = (float)IIS3DWBData[0]*aRes - accelBias[0]; // get actual g value, this depends on scale being set ay = (float)IIS3DWBData[1]*aRes - accelBias[1]; az = (float)IIS3DWBData[2]*aRes - accelBias[2]; } } // end of data ready interrupt handlin // end sensor interrupt handling if(SerialDebug) { // report latest accel data Serial.print("ax = "); Serial.print((int)1000*ax); Serial.print(" ay = "); Serial.print((int)1000*ay); Serial.print(" az = "); Serial.print((int)1000*az); Serial.println(" mg"); } IIS3DWBData[3] = IIS3DWB.readTempData(); // get IIS3DWB chip temperature accelTemp = ((float) IIS3DWBData[3]) / 256.0f + 25.0f; // Accel chip temperature in degrees Centigrade // Print temperature in degrees Centigrade if(SerialDebug) { Serial.print("IIS3DWB temperature is "); Serial.print(accelTemp, 1); Serial.println(" degrees C"); // Print T values to tenths of a degree C } } /* End of main loop */ [/CODE] [/QUOTE]

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