diff --git a/.gitignore b/.gitignore
index 5dfa47ff8..42afe5c44 100644
--- a/.gitignore
+++ b/.gitignore
@@ -5,3 +5,4 @@ ref_app/target.vcxproj.user
ref_app/tmp/
ref_app/x64
ref_app/bin/
+examples/chapter*/bin
diff --git a/examples/chapter09_07/images/seven_segment.png b/examples/chapter09_07/images/seven_segment.png
new file mode 100644
index 000000000..6bdb3eea8
Binary files /dev/null and b/examples/chapter09_07/images/seven_segment.png differ
diff --git a/examples/chapter09_07/readme.md b/examples/chapter09_07/readme.md
index 5e74d2ac2..ae31430e4 100644
--- a/examples/chapter09_07/readme.md
+++ b/examples/chapter09_07/readme.md
@@ -1,4 +1,5 @@
# Example Chapter09_07
+
## Controlling a Seven Segment Display
Example chapter09_07 makes use of object oriented
@@ -8,20 +9,20 @@ programming methods to control a seven segment display.
In this example, port pins are used to control a
seven segment single-character display. As in most other examples,
-both a hardware version for the target system as well as a simlulated
+both a hardware version for the target system as well as a simulated
PC version are available. The PC version writes its
character to the output console.
## Application Description
-The sixteen hexadecimal digits 
+The sixteen hexadecimal digits $0123456789AbCdEF$
are displayed sequentially, one digit per second.
The dot (_i_._e_., period or decimal point) is toggled
on and off for successive groups of 16 hexadecimal digits.
The user LED is simultaneously toggled at the usual $\frac{1}{2}~\text{Hz}$.
The application task is intuitive and easy to understand.
-The followind code snippet from the application task
+The following code snippet from the application task
`app::display::task_func`, for instance, depicts the control
responsible for writing the character digit and decimal
point on the seven segment display. The user LED is simultaneously
@@ -70,10 +71,10 @@ portable application layer code.
The screenshot below shows the PC simulation
of the display application task running in a console.
-
+
## Hardware Setup
The hardware setup is shown in the image below.
-
+
diff --git a/examples/chapter09_08/readme.md b/examples/chapter09_08/readme.md
index ca6372bb5..6091064b4 100644
--- a/examples/chapter09_08/readme.md
+++ b/examples/chapter09_08/readme.md
@@ -1,4 +1,5 @@
# Example Chapter09_08
+
## Controlling an RGB LED
Example chapter09_08 utilizes object oriented programming techniques
@@ -14,7 +15,7 @@ an underlying tick derived from a timer interrupt that
runs every $50~{\mu}\text{s}$.
In this example (as in most other examples), both a hardware
-version for the target system as well as a simlulated PC
+version for the target system as well as a simulated PC
version are available. For this exercise, it was
decided to implement a rather detailed PC simulation
using old-school traditional Win32-API programming.
@@ -30,4 +31,4 @@ The user LED is simultaneously toggled at the usual $\frac{1}{2}~\text{Hz}$.
The chapter09_08 Win32-API simulation in its Windows-based
application is shown in action in the image below.
-
+
diff --git a/examples/chapter09_08/src/mcal/avr/mcal_led_monochrome.cpp b/examples/chapter09_08/src/mcal/avr/mcal_led_monochrome.cpp
index fe7417bea..0f1f2d856 100644
--- a/examples/chapter09_08/src/mcal/avr/mcal_led_monochrome.cpp
+++ b/examples/chapter09_08/src/mcal/avr/mcal_led_monochrome.cpp
@@ -12,10 +12,10 @@
util::device::led_monochrome& mcal::led::led_monochrome0()
{
- using local_led_mponochrome_type =
- mcal::led::led_momochrome_board;
+ using local_led_monochrome_type =
+ mcal::led::led_monochrome_board;
- static local_led_mponochrome_type the_led { };
+ static local_led_monochrome_type the_led { };
return the_led;
}
diff --git a/examples/chapter09_08/src/mcal/avr/mcal_led_monochrome_board.h b/examples/chapter09_08/src/mcal/avr/mcal_led_monochrome_board.h
index bab49d824..02159387a 100644
--- a/examples/chapter09_08/src/mcal/avr/mcal_led_monochrome_board.h
+++ b/examples/chapter09_08/src/mcal/avr/mcal_led_monochrome_board.h
@@ -19,10 +19,10 @@
{
template
- class led_momochrome_board final : public util::device::led_monochrome
+ class led_monochrome_board final : public util::device::led_monochrome
{
public:
- led_momochrome_board()
+ led_monochrome_board()
{
// Set the port pin value to low.
port_pin_type::set_pin_low();
@@ -31,7 +31,7 @@
port_pin_type::set_direction_output();
}
- ~led_momochrome_board() override = default;
+ ~led_monochrome_board() override = default;
auto my_on() -> void override
{
diff --git a/examples/chapter09_08a/readme.md b/examples/chapter09_08a/readme.md
index 06cc6dfee..368bc7748 100644
--- a/examples/chapter09_08a/readme.md
+++ b/examples/chapter09_08a/readme.md
@@ -1,4 +1,5 @@
# Example Chapter09_08a
+
## Controlling an RGB LED of type ws2812
Example chapter09_08a utilizes object oriented programming techniques
@@ -18,7 +19,7 @@ color bits is set to the value $1$ or $0$ depending on the
half-width of a low/high signal pair.
In this example (as in most other examples), both a hardware
-version for the target system as well as a simlulated PC
+version for the target system as well as a simulated PC
version are available. For this exercise, it was
decided to implement a rather detailed PC simulation
using old-school traditional Win32-API programming.
@@ -52,7 +53,7 @@ These very specific mcal/microcontroller-dependent parameters
are used to generate the real-time ws2812 control signal.
The third template parameter `LedCount` provides the ability
-to link multiple ws2812 devices seqentially and control them
+to link multiple ws2812 devices sequentially and control them
in an LED chain, as is common for this particular device.
In example chapter09_08a, a ws2812 LED device is used.
@@ -62,7 +63,7 @@ In example chapter09_08a, a ws2812 LED device is used.
The RGB-color-light-show in example chapter09_08a (this example)
differs slightly from the one in example chapter09_08 (the previous example).
-In this example the color transitions are a bit lenghtier in time
+In this example the color transitions are a bit lengthier in time
(instead of the normal $20~\text{ms}$). Also the color transitions
at and around the points $255~\text{bits}$-RGB
have been lengthened in time. This results in color emphasis
@@ -76,7 +77,7 @@ This enhanced RGB-color-light-show can be found in the file
The chapter09_08a Win32-API simulation in its Windows-based
application is shown in action in the image below.
-
+
## Hardware Setup
@@ -85,23 +86,23 @@ ARDUINO(R) placed on a breadboard with soldered-on pins.
The wiring is straightforward. The ws2812 port control uses port pin `portd.3`.
The hardware setup with the RGB LED in action is pictured
-in the images below. The pictures show colorful RGB hues eminating
+in the images below. The pictures show colorful RGB hues emanating
from the bright RGB LED of type ws2812.
-
-
-
+
+
+
### Bit Timing: ws2812
The approximate bit timing needed by the ws2812 is shown in the following table.
| Bit Value | $T_{hi}~\left[{ns}\right]$ | $T_{lo}~\left[{ns}\right]$ |
-| --------- | --------------- | --------------- |
-| $0$ | $350$ | $800$ |
-| $1$ | $700$ | $600$ |
+| --------- | -------------------------- | -------------------------- |
+| $0$ | $350$ | $800$ |
+| $1$ | $700$ | $600$ |
A sample partial-trace of the control signal on `portd.3` is shown
-below in a representation of an image from a digital oscilloscpoe.
+below in a representation of an image from a digital oscilloscope.
-
+
diff --git a/examples/chapter09_08b/readme.md b/examples/chapter09_08b/readme.md
index 3fdb1d35b..353560c85 100644
--- a/examples/chapter09_08b/readme.md
+++ b/examples/chapter09_08b/readme.md
@@ -1,4 +1,5 @@
# Example Chapter09_08b (variation 32-bit microcontroller)
+
## Controlling an RGB LED of type ws2812
Example chapter09_08b utilizes essentially the same techniques
@@ -20,7 +21,7 @@ A logic-AND gate shifts the microcontroller pin's voltage level.
The microcontroller is clocked at $24~\text{MHz}$.
The hardware setup with the RGB LED in action is pictured
-in the image below. The pictures depicts a pink hue eminating
+in the image below. The pictures depicts a pink hue emanating
from the bright RGB LED of type ws2812B.
-
+