Changeset 197

Timestamp:

Mar 30, 2016, 4:58:30 PM (8 years ago)

Author:

ertl-honda

Message:

SDのサンプルの追加

Location:

rtos_arduino/trunk/examples/Basic

Files:

• Makefile (modified) (1 diff)
• rca_app.cpp (modified) (2 diffs)

rtos_arduino/trunk/examples/Basic/Makefile

@@ -27 +27 @@
 #  ライブラリの使用
 #  
-#USE_ARDUINO_SPI = true
+USE_ARDUINO_SPI = true
 #USE_ARDUINO_NCESCAN = true
-#USE_ARDUINO_SD  = true
+USE_ARDUINO_SD  = true
 #USE_ARDUINO_TFT = true
 #USE_ETHERNET2 = true
 #USE_NAXESMOTION = true
-USE_ARDUINO_RTC = true
+#USE_ARDUINO_RTC = true
+#USE_WIRE = true
 
 #

rtos_arduino/trunk/examples/Basic/rca_app.cpp

@@ -10 +10 @@
 //#define ANALOGREAD
 //#define RTC_ALARM
+//#define SD_CARD
 
 #ifdef BLINK
@@ -309 +310 @@
 }
 #endif /* RTC_ALARM */
+
+
+#ifdef SD_CARD
+/*
+  SD card datalogger
+
+ This example shows how to log data from three analog sensors
+ to an SD card using the SD library.
+
+ The circuit:
+ * analog sensors on analog ins 0, 1, and 2
+ * SD card attached to SPI bus as follows:
+ ** MOSI - pin 11
+ ** MISO - pin 12
+ ** CLK - pin 13
+ ** CS - pin 4
+
+ created  24 Nov 2010
+ modified 9 Apr 2012
+ by Tom Igoe
+
+ This example code is in the public domain.
+
+ */
+
+#include <SPI.h>
+#include <SD.h>
+
+// On the Ethernet Shield, CS is pin 4. Note that even if it's not
+// used as the CS pin, the hardware CS pin (10 on most Arduino boards,
+// 53 on the Mega) must be left as an output or the SD library
+// functions will not work.
+const int chipSelect = 4;
+
+void setup()
+{
+  // Open serial communications and wait for port to open:
+  Serial.begin(115200);
+  while (!Serial) {
+    ; // wait for serial port to connect. Needed for Leonardo only
+  }
+
+  Serial.print("Initializing SD card...");
+  // make sure that the default chip select pin is set to
+  // output, even if you don't use it:
+  // pinMode(10, OUTPUT);
+
+  // see if the card is present and can be initialized:
+  if (!SD.begin(chipSelect)) {
+    Serial.println("Card failed, or not present");
+    // don't do anything more:
+    return;
+  }
+  Serial.println("card initialized.");
+
+  if (SD.remove("datalog.txt")) {
+    Serial.println("Delete datalog.txt");
+  }    
+}
+
+void loop()
+{
+  // make a string for assembling the data to log:
+  String dataString = "";
+
+  // read three sensors and append to the string:
+  for (int analogPin = 0; analogPin < 3; analogPin++) {
+    int sensor = analogRead(analogPin);
+    dataString += String(sensor);
+    if (analogPin < 2) {
+      dataString += ",";
+    }
+  }
+
+  File dataFile = SD.open("datalog.txt");
+  if (dataFile) {    
+    Serial.println("=== data from file ===");
+    while (dataFile.available()) {
+      Serial.write(dataFile.read());
+    }
+    dataFile.close();
+  }
+    
+  // open the file. note that only one file can be open at a time,
+  // so you have to close this one before opening another.
+  dataFile = SD.open("datalog.txt", FILE_WRITE);
+
+  // if the file is available, write to it:
+  if (dataFile) {
+    dataFile.println(dataString);
+    dataFile.close();
+    // print to the serial port too:
+    Serial.println("=== new data to file ===");      
+    Serial.println(dataString);
+  }
+  // if the file isn't open, pop up an error:
+  else {
+    Serial.println("error opening datalog.txt");
+  }
+  delay(4000);  
+}
+#endif /* SD_CARD */
+
+