cmake: Add support for Arduino Nano with old bootloader

The old bootloader is using 57600 instead of 115200 baud.

Author: thomasjfox

CMakeLists.txt

@@ -16,8 +16,15 @@ if (config_h_lines)
     set(ARDUINO_AVR_MEGA_MENU_CPU_ATMEGA2560 TRUE)
 else(config_h_lines)
     set(ARDUINO_BOARD "Arduino Nano [avr.nano]")
-    set(ARDUINO_AVR_NANO_MENU_CPU_ATMEGA328 TRUE)
+
+    option(OLD_BOOTLOADER "Arduino Nano uses old bootloader (57600 baud)" OFF)
+    if (OLD_BOOTLOADER)
+        set(ARDUINO_AVR_NANO_MENU_CPU_ATMEGA328OLD TRUE)
+    else (OLD_BOOTLOADER)
+        set(ARDUINO_AVR_NANO_MENU_CPU_ATMEGA328 TRUE)
+    endif (OLD_BOOTLOADER)
 endif(config_h_lines)
+set(ARDUINO_PROGRAMMER "Arduino as ISP [avr.arduinoasisp]")
 
 cmake_minimum_required(VERSION 3.7.0)
 project(Pedelec_Controller C CXX)

docs/README_cmake.txt

@@ -12,6 +12,14 @@ Note: Linux only for now. Windows support is untested.
    cd build
    cmake ../
 
+   Most likely you will have to give the Arduino install path:
+   cmake -DARDUINO_INSTALL_PATH=/tmp ../
+
+   If you have a FC before 2.x and the Arduino Nano uses
+   the old bootloader (57600 baud), use this option:
+
+   cmake cmake -DARDUINO_INSTALL_PATH=/tmp -DOLD_BOOTLOADER=ON ../
+
 2. Compile
 
    cd build
@@ -20,4 +28,4 @@ Note: Linux only for now. Windows support is untested.
 3. Upload
 
    cd build
-   make pcontroller-upload
+   make upload-pcontroller SERIAL_PORT=/dev/ttyUSB0