Description

Morse Code to ASCII

In this lab you will use a lookup table (LUT) implemented using a memory elements to convert Morse code patterns of dots and dashes into ASCII code. The outputted ASCII codes will be pushed into a FIFO buffer and displayed on the seven-segment display

• Implement the system shown in the figure on the FPGA board
• The red OR gate resets the 5-bit shift register and the 3-bit UDL counter after each letter (or word)
• wg_delayed is necessary to push a space at the end of a word (i.e. after a wg)
• Figure out the width and depth of the ROM and FIFO buffer interface
• Use the included morse2ascii_lut.xlsx to figure out the initial values of ROM
• You can use your Morse Decoder or the decoder I provided in the starter code. However, if you decided to use mine, please keep in mind: o The decoder was designed using a single timer/counter structure
o The functionality of the decoder depends on knowing when to reset, enable, and disable the timer/counter structure
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o You can change the timer value by changing the TIMER_FINAL_VALUE parameter
o Generating a wg signal doesn’t mean lg will also be generated o I have tested my decoder; however, I might have missed some corner cases (i.e.
use it at your own risk)

Note:
I used the binary tree shown above to fill out the lookup table in the excel sheet. To get the letter associated with a certain code, move right for a dash and left for a dot.

Submission check list:
[ ] All Verilog code you generated or modified
[ ] All testbenches written
[ ] Embed all screenshot of your testbench output in your README.md
[ ] Embed all block diagram or state diagrams generated in your README.md
[ ] Short videos demonstrating each of the parts you implemented on the FPGA

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