added vhdl process graphs

README.md

@@ -2,10 +2,18 @@
 
 Pong game on Altera FPGA as exercise in Hardware-/Software-Codesign
 
-## Datenflussdiagramm
+## Data flow
 ![](images/data_graph.png)
 
-## Programmablaufplan des C Programms
+## Flowcharts of the VHDL program
+
+### Multiplex process
+![](images/matrix_multiplex.png)
+
+### Debounce process
+![](images/button_debounce.png)
+
+## Flowcharts of the C program
 Below images show flowcharts for all featured software functions.
 Fist chart feature the main game function. Subfunctions are described below.
 See:    
@@ -18,7 +26,7 @@ See:
 
 ---
 
-### Subfunctions  Flowcharts
+### Subfunctions Flowcharts
 Flowchart of draw function. Function output the virtual screen to the output pins to be processed by VHDL
 
 ![](images/draw.png)

images/button_debounce.drawio

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images/data_graph.drawio

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