Adding warning about multiple open files.

damellis · damellis · commit b0b909ed2bb5 · 2010-12-22T17:04:34.000-06:00
diff --git a/libraries/SD/examples/ReadWrite/ReadWrite.pde b/libraries/SD/examples/ReadWrite/ReadWrite.pde
@@ -38,7 +38,8 @@ void setup()
   }
   Serial.println("initialization done.");
   
-  // open a file:
+  // open the file. note that only one file can be open at a time,
+  // so you have to close this one before opening another.
   myFile = SD.open("test.txt", FILE_WRITE);
   
   // if the file opened okay, write to it:

Original file line number	Diff line number	Diff line change
`@@ -38,7 +38,8 @@ void setup()`
`38`	`38`	`}`
`39`	`39`	`Serial.println("initialization done.");`
`40`	`40`
`41`		`- // open a file:`
	`41`	`+ // open the file. note that only one file can be open at a time,`
	`42`	`+ // so you have to close this one before opening another.`
`42`	`43`	`myFile = SD.open("test.txt", FILE_WRITE);`
`43`	`44`
`44`	`45`	`// if the file opened okay, write to it:`