Update DigiCDC.cpp

make delay configurable

Author: Erik Tylek Kettenburg

hardware/digistump/avr/libraries/DigisparkCDC/DigiCDC.cpp

@@ -16,7 +16,7 @@ and Digistump LLC (digistump.com)
 
 uchar              sendEmptyFrame;
 static uchar       intr3Status;    /* used to control interrupt endpoint transmissions */
-
+uint8_t            cdcDelay = 45; //9 works if sending short strings only or not using F() - set with setDelay
 
 DigiCDCDevice::DigiCDCDevice(void){}
 
@@ -41,6 +41,11 @@ void DigiCDCDevice::begin(){
 
     usbBegin();
 
+}
+void DigiCDCDevice::setDelay(uint8_t delay){
+
+    cdcDelay = delay;
+
 }
 size_t DigiCDCDevice::write(uint8_t c)
 {
@@ -52,7 +57,7 @@ size_t DigiCDCDevice::write(uint8_t c)
     else
     {
         RingBuffer_Insert(&txBuf,c);
-        DigiCDCDevice::delay(45); //ouch its slow but it ensures it will work no matter how long of a string is thrown at it
+        DigiCDCDevice::delay(cdcDelay); //ouch its slow but it ensures it will work no matter how long of a string is thrown at it
         return 1;
     }
 
@@ -384,4 +389,4 @@ void usbFunctionWriteOut( uchar *data, uchar len )
 } // extern "C"
 #endif
 
-DigiCDCDevice SerialUSB;
+DigiCDCDevice SerialUSB;