Serial-Communication.md

@@ -10,9 +10,10 @@ the 3 Usarts that Miosix lets you use are configured.
    | 3      | PB10 | PB11 | PB13 | PB14 |
 
 
+
 ### Usage
 
-Standard input and output (`printf()` and `scanf()`) are redirected to the [default USART](#settings).
+Standard input and output (`printf()` and `scanf()`) are redirected to the [default USART](#default-usart).
 
 Other serial ports can be used as follows, but they have to be configured first.
 ```cpp
@@ -27,8 +28,10 @@ write(fd, 10, buffer);   //Write 10 chars
 ```
 Pay attention to the baudrate at which the used port is set!
 
-### Settings
-The default serial for a certain board is set in `miosix/config/arch/<your_arch>/<your_board>/board_settings.h`
+
+### Default USART
+
+The **default serial** for a certain board is set in `miosix/config/arch/<your_arch>/<your_board>/board_settings.h`
 
 ```cpp
 const unsigned int defaultSerial=1;
@@ -37,12 +40,6 @@ const bool defaultSerialFlowctrl=false;         //use rts/cts
 
 #define SERIAL_1_DMA                            //use the DMA
 ```
-For the f407vg board, there's also another serial port that can be opened:
-```cpp
-//#define AUX_SERIAL "auxtty"    UNCOMMENT THIS TO OPEN THE SERIAL
-const unsigned int auxSerialSpeed=9600;
-const bool auxSerialFlowctrl=false;
-```
 
 The default serial port is opened in the *IRQBspInit()* method 
 inside `miosix/arch/<your arch>/<your board>/interfaces-impl/bsp.cpp`
@@ -53,7 +50,16 @@ inside `miosix/arch/<your arch>/<your board>/interfaces-impl/bsp.cpp`
       defaultSerialFlowctrl ? STM32Serial::RTSCTS : STM32Serial::NOFLOWCTRL)));
 ```
 
-While the other serial ports are opened in the *bspInit2()* method of the same file.
+### Auxtty USART
+For the f407vg board, there's also **another serial port** that can be opened:
+```cpp
+//#define AUX_SERIAL "auxtty"    UNCOMMENT THIS TO OPEN THE SERIAL
+const unsigned int auxSerialSpeed=9600;
+const bool auxSerialFlowctrl=false;
+```
+
+This port is opened in the *bspInit2()* method
+ inside `miosix/arch/<your arch>/<your board>/interfaces-impl/bsp.cpp`
 ```cpp
 void bspInit2()
 {