going back to my version of gede

docs/manual.md

@@ -474,7 +474,7 @@ All of the commands marked with (*) reset the MCU.
 
 If you believe that GDB is too much typing, then you are probably the type of programmer who wants a graphical user interface. As it turns out, it is not completely trivial to come up with a solution that is easy to install and easy to work with. Recently, I stumbled over *gede*, which appears to be just the right solution. It has been designed for Linux, but after a few small changes it also works under macOS. Unfortunately, Windows is not supported. However, you could use [*WSL2*](https://en.wikipedia.org/wiki/Windows_Subsystem_for_Linux) to run Gede, avr-gdb, dw-server.py and the Arduiono IDE. Connecting to a serial port could then be done by using [*usb-ip*](https://github.com/dorssel/usbipd-win). 
 
-Making a long story short, you can download the source from https://gede.dexar.se/ and build it according to the instructions in the readme file. It is straight-forward and easy.
+Making a long story short, you can download the source from my [fork of gede](https://github.com/felias-fogg/gede) and build it according to the instructions in the readme file. It is straight-forward and easy.
 
 The `dw-server` directory of the dw-link directory contains a Python script called `dw-server.py`, which you should copy to `/usr/local/bin`. 
 

examples/blinkmodes/blinkmodes.ino

@@ -39,7 +39,7 @@ void loop() {
   if (Serial.available()) {
     c = Serial.read();
     if (isupper(c)) Serial.write(tolower(c));
-    else Serial.write(toupper(c));
+    else if (islower(c)) Serial.write(toupper(c));
   }
 }
 
@@ -50,7 +50,7 @@ void readButton() {
   mode = (mode+1) % 4;               // go to next mode
 }
 
-ISR(TIMER0_COMPA_vect) {              // timer ISR
+ISR(TIMER_COMPA_vect) {              // timer ISR
   counter++;                          // advance counter
   if (mode == 0)
     digitalWrite(LEDPIN, 0);          // in mode 0, switch LED off