digicdc speed up! thanks @Defragster

Author: ekettenburg

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

@@ -16,7 +16,6 @@ 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){}
 
@@ -40,13 +39,10 @@ void DigiCDCDevice::flush(){
 void DigiCDCDevice::begin(){
 
     usbBegin();
+    DigiCDCDevice::delay(500);//delay to allow enumeration and such
 
 }
-void DigiCDCDevice::setDelay(uint8_t delay){
 
-    cdcDelay = delay;
-
-}
 size_t DigiCDCDevice::write(uint8_t c)
 {
     if(RingBuffer_IsFull(&txBuf))
@@ -57,7 +53,7 @@ size_t DigiCDCDevice::write(uint8_t c)
     else
     {
         RingBuffer_Insert(&txBuf,c);
-        DigiCDCDevice::delay(cdcDelay); //ouch its slow but it ensures it will work no matter how long of a string is thrown at it
+        DigiCDCDevice::delay(5); //gives 4.2-4.7ms per character for usb transfer at low speed
         return 1;
     }
 

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

@@ -38,7 +38,6 @@ class DigiCDCDevice  : public Stream {
     public:
         DigiCDCDevice();
         void begin(), begin(unsigned long x);
-        void setDelay(uint8_t delay);
         void end();
         void refresh();
         void task();