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<a href="test_uart__communication__block_8vhd.html">Go to the documentation of this file.</a><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 
<a name="l00003"></a>00003 
<a name="l00005"></a>00005 <span class="vhdlkeyword">LIBRARY </span><span class="keywordflow">ieee</span>;
<a name="l00006"></a>00006 <span class="vhdlkeyword">USE </span>ieee.std_logic_1164.<span class="vhdlkeyword">ALL</span>;
<a name="l00007"></a>00007 <span class="vhdlkeyword">use </span>ieee.std_logic_unsigned.<span class="vhdlkeyword">all</span>;
<a name="l00008"></a>00008 <span class="vhdlkeyword">use </span>ieee.std_logic_arith.<span class="vhdlkeyword">all</span>;
<a name="l00009"></a>00009  
<a name="l00011"></a><a class="code" href="classtest_uart__communication__block.html#ac442dca664056131bdaf5c92e4351e01">00011</a> <span class="vhdlkeyword">use </span>work.pkgDefinitions.<span class="vhdlkeyword">all</span>;
<a name="l00012"></a>00012  
<a name="l00013"></a><a class="code" href="classtest_uart__communication__block.html">00013</a> <span class="keywordflow">ENTITY </span><a class="code" href="classtest_uart__communication__block.html">testUart_communication_block</a> <span class="vhdlkeyword">IS</span>
<a name="l00014"></a>00014 <span class="vhdlkeyword">END</span> <span class="vhdlchar">testUart_communication_block</span>;
<a name="l00015"></a>00015  
<a name="l00018"></a><a class="code" href="classtest_uart__communication__block_1_1behavior.html">00018</a> <span class="vhdlkeyword">ARCHITECTURE</span> behavior <span class="vhdlkeyword">OF</span> <a class="code" href="classtest_uart__communication__block.html">testUart_communication_block</a> IS 
<a name="l00019"></a>00019  <span class="keyword"></span>
<a name="l00020"></a>00020 <span class="keyword">    -- <span class="vhdlkeyword">Component</span> Declaration <span class="vhdlkeyword">for</span> the Unit Under Test (UUT)</span>
<a name="l00021"></a>00021  
<a name="l00022"></a><a class="code" href="classtest_uart__communication__block_1_1behavior.html#a18ccf3bd92a7406c724baa00eaa9b168">00022</a>     <span class="vhdlkeyword">COMPONENT</span> <a class="code" href="classuart__communication__blocks.html">uart_communication_blocks</a>
<a name="l00023"></a>00023     <span class="vhdlkeyword">Port</span> ( <a class="code" href="classuart__communication__blocks.html#a8951f9e34071cb1a681f0339ce4b63c4" title="Global reset.">rst</a> : <span class="vhdlkeyword">in</span>  <span class="comment">STD_LOGIC</span>;                                                                                                                 
<a name="l00024"></a>00024            <a class="code" href="classuart__communication__blocks.html#a3fe846251d47f950195c2f54bd129c61" title="Global clock.">clk</a> : <span class="vhdlkeyword">in</span>  <span class="comment">STD_LOGIC</span>;                                                                                                                 
<a name="l00025"></a>00025                           <a class="code" href="classuart__communication__blocks.html#afa18bfa78951934bdb69cd7109c05aa3" title="Number of cycles to wait in order to generate desired baud.">cycle_wait_baud</a> : <span class="vhdlkeyword">in</span> <span class="comment">std_logic_vector</span>((nBitsLarge<span class="vhdlchar">-</span><span class="vhdllogic"></span><span class="vhdllogic">1</span>) <span class="vhdlkeyword">downto</span> <span class="vhdllogic"></span><span class="vhdllogic">0</span>);       
<a name="l00026"></a>00026            <a class="code" href="classuart__communication__blocks.html#a8cf74bfe6ea9ebd58f54385e60bcdb81" title="Byte to transmit.">byte_tx</a> : <span class="vhdlkeyword">in</span>  <span class="comment">STD_LOGIC_VECTOR</span> ((nBits<span class="vhdlchar">-</span><span class="vhdllogic"></span><span class="vhdllogic">1</span>) <span class="vhdlkeyword">downto</span> <span class="vhdllogic"></span><span class="vhdllogic">0</span>);                         
<a name="l00027"></a>00027            <a class="code" href="classuart__communication__blocks.html#af86c06321eda298448164ea4af314d9d" title="Byte to receive.">byte_rx</a> : <span class="vhdlkeyword">out</span>  <span class="comment">STD_LOGIC_VECTOR</span> ((nBits<span class="vhdlchar">-</span><span class="vhdllogic"></span><span class="vhdllogic">1</span>) <span class="vhdlkeyword">downto</span> <span class="vhdllogic"></span><span class="vhdllogic">0</span>);                                
<a name="l00028"></a>00028            <a class="code" href="classuart__communication__blocks.html#a6911204ed04f303c8c0aeb381132178f" title="Indicate that byte has been sent.">data_sent_tx</a> : <span class="vhdlkeyword">out</span>  <span class="comment">STD_LOGIC</span>;                                                                                               
<a name="l00029"></a>00029            <a class="code" href="classuart__communication__blocks.html#a660ac404fdc70a7d4ac57286d0916c4a" title="Indicate that we got a byte.">data_received_rx</a> : <span class="vhdlkeyword">out</span>  <span class="comment">STD_LOGIC</span>;                                                                           
<a name="l00030"></a>00030                           <a class="code" href="classuart__communication__blocks.html#a663f39bc9103a1c89116711a4d4f2fbc" title="Uart serial out.">serial_out</a> : <span class="vhdlkeyword">out</span> <span class="comment">std_logic</span>;                                                                                                   
<a name="l00031"></a>00031                           <a class="code" href="classuart__communication__blocks.html#ab5c23ea4f1cdfe2567b19e81909ecfc0" title="Uart serial in.">serial_in</a> : <span class="vhdlkeyword">in</span> <span class="comment">std_logic</span>;                                                                                                     
<a name="l00032"></a>00032            <a class="code" href="classuart__communication__blocks.html#a2e4fb6cc48dc8f0ec684c80468ae6801" title="Initiate transmission.">start_tx</a> : <span class="vhdlkeyword">in</span>  <span class="comment">STD_LOGIC</span>);
<a name="l00033"></a>00033     <span class="vhdlkeyword">END</span> <span class="vhdlkeyword">COMPONENT</span>;
<a name="l00034"></a>00034     
<a name="l00035"></a>00035 <span class="keyword"></span>
<a name="l00036"></a>00036 <span class="keyword">   --Inputs</span>
<a name="l00037"></a><a class="code" href="classtest_uart__communication__block_1_1behavior.html#a248880720a09137a5e04e70521001f1b">00037</a>    <span class="vhdlkeyword">signal</span> <span class="vhdlchar"><a class="code" href="classtest_uart__communication__block_1_1behavior.html#a248880720a09137a5e04e70521001f1b" title="Signal to connect with UUT.">rst</a></span> <span class="vhdlchar">:</span> <span class="comment">std_logic</span> <span class="vhdlchar">:=</span> <span class="vhdlchar">&#39;</span><span class="vhdllogic"></span><span class="vhdllogic">0</span><span class="vhdlchar">&#39;</span>;
<a name="l00038"></a><a class="code" href="classtest_uart__communication__block_1_1behavior.html#a558455b32aceac51fe4f45fc29deeda2">00038</a>    <span class="vhdlkeyword">signal</span> <span class="vhdlchar"><a class="code" href="classtest_uart__communication__block_1_1behavior.html#a558455b32aceac51fe4f45fc29deeda2" title="Signal to connect with UUT.">clk</a></span> <span class="vhdlchar">:</span> <span class="comment">std_logic</span> <span class="vhdlchar">:=</span> <span class="vhdlchar">&#39;</span><span class="vhdllogic"></span><span class="vhdllogic">0</span><span class="vhdlchar">&#39;</span>;
<a name="l00039"></a><a class="code" href="classtest_uart__communication__block_1_1behavior.html#a4c08915531add3ce903585abd8aa7c32">00039</a>    <span class="vhdlkeyword">signal</span> <span class="vhdlchar"><a class="code" href="classtest_uart__communication__block_1_1behavior.html#a4c08915531add3ce903585abd8aa7c32" title="Signal to connect with UUT.">cycle_wait_baud</a></span> <span class="vhdlchar">:</span> <span class="comment">std_logic_vector</span><span class="vhdlchar">(</span><span class="vhdlchar">(</span><span class="vhdlchar">nBitsLarge</span><span class="vhdlchar">-</span><span class="vhdllogic"></span><span class="vhdllogic">1</span><span class="vhdlchar">)</span> <span class="vhdlkeyword">downto</span> <span class="vhdllogic"></span><span class="vhdllogic">0</span><span class="vhdlchar">)</span> <span class="vhdlchar">:=</span> <span class="vhdlchar">(</span><span class="vhdlkeyword">others</span> <span class="vhdlchar">=</span><span class="vhdlchar">&gt;</span> <span class="vhdlchar">&#39;</span><span class="vhdllogic"></span><span class="vhdllogic">0</span><span class="vhdlchar">&#39;</span><span class="vhdlchar">)</span>;
<a name="l00040"></a><a class="code" href="classtest_uart__communication__block_1_1behavior.html#a51999b58f4bf8bec91d41e23ba241e9f">00040</a>    <span class="vhdlkeyword">signal</span> <span class="vhdlchar"><a class="code" href="classtest_uart__communication__block_1_1behavior.html#a51999b58f4bf8bec91d41e23ba241e9f" title="Signal to connect with UUT.">byte_tx</a></span> <span class="vhdlchar">:</span> <span class="comment">std_logic_vector</span><span class="vhdlchar">(</span><span class="vhdlchar">(</span><span class="vhdlchar">nBits</span><span class="vhdlchar">-</span><span class="vhdllogic"></span><span class="vhdllogic">1</span><span class="vhdlchar">)</span> <span class="vhdlkeyword">downto</span> <span class="vhdllogic"></span><span class="vhdllogic">0</span><span class="vhdlchar">)</span> <span class="vhdlchar">:=</span> <span class="vhdlchar">(</span><span class="vhdlkeyword">others</span> <span class="vhdlchar">=</span><span class="vhdlchar">&gt;</span> <span class="vhdlchar">&#39;</span><span class="vhdllogic"></span><span class="vhdllogic">0</span><span class="vhdlchar">&#39;</span><span class="vhdlchar">)</span>;
<a name="l00041"></a><a class="code" href="classtest_uart__communication__block_1_1behavior.html#aa9ffae81538ad5181d6c756c3cd7df2e">00041</a>    <span class="vhdlkeyword">signal</span> <span class="vhdlchar"><a class="code" href="classtest_uart__communication__block_1_1behavior.html#aa9ffae81538ad5181d6c756c3cd7df2e" title="Signal to connect with UUT.">serial_in</a></span> <span class="vhdlchar">:</span> <span class="comment">std_logic</span> <span class="vhdlchar">:=</span> <span class="vhdlchar">&#39;</span><span class="vhdllogic"></span><span class="vhdllogic">0</span><span class="vhdlchar">&#39;</span>;
<a name="l00042"></a><a class="code" href="classtest_uart__communication__block_1_1behavior.html#acc9c08fe2957eb6987969db4ad32eb3f">00042</a>    <span class="vhdlkeyword">signal</span> <span class="vhdlchar"><a class="code" href="classtest_uart__communication__block_1_1behavior.html#acc9c08fe2957eb6987969db4ad32eb3f" title="Signal to connect with UUT.">start_tx</a></span> <span class="vhdlchar">:</span> <span class="comment">std_logic</span> <span class="vhdlchar">:=</span> <span class="vhdlchar">&#39;</span><span class="vhdllogic"></span><span class="vhdllogic">0</span><span class="vhdlchar">&#39;</span>;
<a name="l00043"></a>00043 <span class="keyword"></span>
<a name="l00044"></a>00044 <span class="keyword">        --Outputs</span>
<a name="l00045"></a><a class="code" href="classtest_uart__communication__block_1_1behavior.html#a1e6d0e7b0a499eb191f1739ac27a3ee9">00045</a>    <span class="vhdlkeyword">signal</span> <span class="vhdlchar"><a class="code" href="classtest_uart__communication__block_1_1behavior.html#a1e6d0e7b0a499eb191f1739ac27a3ee9" title="Signal to connect with UUT.">byte_rx</a></span> <span class="vhdlchar">:</span> <span class="comment">std_logic_vector</span><span class="vhdlchar">(</span><span class="vhdlchar">(</span><span class="vhdlchar">nBits</span><span class="vhdlchar">-</span><span class="vhdllogic"></span><span class="vhdllogic">1</span><span class="vhdlchar">)</span> <span class="vhdlkeyword">downto</span> <span class="vhdllogic"></span><span class="vhdllogic">0</span><span class="vhdlchar">)</span>;
<a name="l00046"></a><a class="code" href="classtest_uart__communication__block_1_1behavior.html#a8f1ff141670d1dee066d28d88e7c7332">00046</a>    <span class="vhdlkeyword">signal</span> <span class="vhdlchar"><a class="code" href="classtest_uart__communication__block_1_1behavior.html#a8f1ff141670d1dee066d28d88e7c7332" title="Signal to connect with UUT.">data_sent_tx</a></span> <span class="vhdlchar">:</span> <span class="comment">std_logic</span>;
<a name="l00047"></a><a class="code" href="classtest_uart__communication__block_1_1behavior.html#a0754d26733fa0f39b326e8baddca869a">00047</a>    <span class="vhdlkeyword">signal</span> <span class="vhdlchar"><a class="code" href="classtest_uart__communication__block_1_1behavior.html#a0754d26733fa0f39b326e8baddca869a" title="Signal to connect with UUT.">data_received_rx</a></span> <span class="vhdlchar">:</span> <span class="comment">std_logic</span>;
<a name="l00048"></a><a class="code" href="classtest_uart__communication__block_1_1behavior.html#af282f34f154c9704a0f28c8f5a95123b">00048</a>    <span class="vhdlkeyword">signal</span> <span class="vhdlchar"><a class="code" href="classtest_uart__communication__block_1_1behavior.html#af282f34f154c9704a0f28c8f5a95123b" title="Signal to connect with UUT.">serial_out</a></span> <span class="vhdlchar">:</span> <span class="comment">std_logic</span>;
<a name="l00049"></a>00049 <span class="keyword"></span>
<a name="l00050"></a>00050 <span class="keyword">   -- Clock period definitions   </span>
<a name="l00051"></a>00051         <span class="vhdlkeyword">constant</span> <span class="vhdlchar">clk_period</span> <span class="vhdlchar">:</span> <span class="comment">time</span> <span class="vhdlchar">:=</span> <span class="vhdllogic"></span><span class="vhdllogic">20</span> <span class="vhdlchar">ns</span>;<span class="keyword"> -- </span><span class="vhdllogic">0</span>.543us (<span class="vhdllogic">1</span>.8432Mhz) 20ns (50Mhz)
<a name="l00052"></a>00052  
<a name="l00053"></a>00053 <span class="vhdlkeyword">BEGIN</span>
<a name="l00054"></a>00054  
<a name="l00056"></a>00056    <a class="code" href="dummy.html#a1619316ad715601eb5d3559db829ac05" title="Instantiate the Unit Under Test (UUT)">uut</a>: <a class="code" href="classuart__communication__blocks.html">uart_communication_blocks</a> <span class="vhdlkeyword">PORT</span> <span class="vhdlkeyword">MAP</span> (
<a name="l00057"></a>00057           <a class="code" href="classuart__communication__blocks.html#a8951f9e34071cb1a681f0339ce4b63c4" title="Global reset.">rst</a> =&gt; <a class="code" href="classtest_uart__communication__block_1_1behavior.html#a248880720a09137a5e04e70521001f1b" title="Signal to connect with UUT.">rst</a>,
<a name="l00058"></a>00058           <a class="code" href="classuart__communication__blocks.html#a3fe846251d47f950195c2f54bd129c61" title="Global clock.">clk</a> =&gt; <a class="code" href="classtest_uart__communication__block_1_1behavior.html#a558455b32aceac51fe4f45fc29deeda2" title="Signal to connect with UUT.">clk</a>,
<a name="l00059"></a>00059           <a class="code" href="classuart__communication__blocks.html#afa18bfa78951934bdb69cd7109c05aa3" title="Number of cycles to wait in order to generate desired baud.">cycle_wait_baud</a> =&gt; <a class="code" href="classtest_uart__communication__block_1_1behavior.html#a4c08915531add3ce903585abd8aa7c32" title="Signal to connect with UUT.">cycle_wait_baud</a>,
<a name="l00060"></a>00060           <a class="code" href="classuart__communication__blocks.html#a8cf74bfe6ea9ebd58f54385e60bcdb81" title="Byte to transmit.">byte_tx</a> =&gt; <a class="code" href="classtest_uart__communication__block_1_1behavior.html#a51999b58f4bf8bec91d41e23ba241e9f" title="Signal to connect with UUT.">byte_tx</a> ,
<a name="l00061"></a>00061           <a class="code" href="classuart__communication__blocks.html#af86c06321eda298448164ea4af314d9d" title="Byte to receive.">byte_rx</a> =&gt; <a class="code" href="classtest_uart__communication__block_1_1behavior.html#a1e6d0e7b0a499eb191f1739ac27a3ee9" title="Signal to connect with UUT.">byte_rx</a> ,
<a name="l00062"></a>00062           <a class="code" href="classuart__communication__blocks.html#a6911204ed04f303c8c0aeb381132178f" title="Indicate that byte has been sent.">data_sent_tx</a> =&gt; <a class="code" href="classtest_uart__communication__block_1_1behavior.html#a8f1ff141670d1dee066d28d88e7c7332" title="Signal to connect with UUT.">data_sent_tx</a>,
<a name="l00063"></a>00063           <a class="code" href="classuart__communication__blocks.html#a660ac404fdc70a7d4ac57286d0916c4a" title="Indicate that we got a byte.">data_received_rx</a> =&gt; <a class="code" href="classtest_uart__communication__block_1_1behavior.html#a0754d26733fa0f39b326e8baddca869a" title="Signal to connect with UUT.">data_received_rx</a>,
<a name="l00064"></a>00064           <a class="code" href="classuart__communication__blocks.html#a663f39bc9103a1c89116711a4d4f2fbc" title="Uart serial out.">serial_out</a>  =&gt; <a class="code" href="classtest_uart__communication__block_1_1behavior.html#af282f34f154c9704a0f28c8f5a95123b" title="Signal to connect with UUT.">serial_out</a>,
<a name="l00065"></a>00065           <a class="code" href="classuart__communication__blocks.html#ab5c23ea4f1cdfe2567b19e81909ecfc0" title="Uart serial in.">serial_in</a> =&gt; <a class="code" href="classtest_uart__communication__block_1_1behavior.html#aa9ffae81538ad5181d6c756c3cd7df2e" title="Signal to connect with UUT.">serial_in</a>,
<a name="l00066"></a>00066           <a class="code" href="classuart__communication__blocks.html#a2e4fb6cc48dc8f0ec684c80468ae6801" title="Initiate transmission.">start_tx</a> =&gt; <a class="code" href="classtest_uart__communication__block_1_1behavior.html#acc9c08fe2957eb6987969db4ad32eb3f" title="Signal to connect with UUT.">start_tx</a>
<a name="l00067"></a>00067         <span class="vhdlchar">)</span>;
<a name="l00068"></a>00068 <span class="keyword"></span>
<a name="l00069"></a>00069 <span class="keyword">   -- Clock <span class="vhdlkeyword">process</span> definitions</span>
<a name="l00070"></a>00070    clk_process :<span class="vhdlkeyword">process</span>
<a name="l00071"></a>00071    <span class="vhdlkeyword">begin</span>
<a name="l00072"></a>00072                 <span class="vhdlchar"><a class="code" href="classtest_uart__communication__block_1_1behavior.html#a558455b32aceac51fe4f45fc29deeda2" title="Signal to connect with UUT.">clk</a></span> <span class="vhdlchar">&lt;=</span> <span class="vhdlchar">&#39;</span><span class="vhdllogic"></span><span class="vhdllogic">0</span><span class="vhdlchar">&#39;</span>;
<a name="l00073"></a>00073                 <span class="vhdlkeyword">wait</span> <span class="vhdlkeyword">for</span> <span class="vhdlchar">clk_period</span><span class="vhdlchar">/</span><span class="vhdllogic"></span><span class="vhdllogic">2</span>;
<a name="l00074"></a>00074                 <span class="vhdlchar"><a class="code" href="classtest_uart__communication__block_1_1behavior.html#a558455b32aceac51fe4f45fc29deeda2" title="Signal to connect with UUT.">clk</a></span> <span class="vhdlchar">&lt;=</span> <span class="vhdlchar">&#39;</span><span class="vhdllogic"></span><span class="vhdllogic">1</span><span class="vhdlchar">&#39;</span>;
<a name="l00075"></a>00075                 <span class="vhdlkeyword">wait</span> <span class="vhdlkeyword">for</span> <span class="vhdlchar">clk_period</span><span class="vhdlchar">/</span><span class="vhdllogic"></span><span class="vhdllogic">2</span>;
<a name="l00076"></a>00076    <span class="vhdlkeyword">end</span> <span class="vhdlkeyword">process</span>;
<a name="l00077"></a>00077  
<a name="l00078"></a>00078 <span class="keyword"></span>
<a name="l00079"></a>00079 <span class="keyword">   -- Stimulus <span class="vhdlkeyword">process</span></span>
<a name="l00080"></a>00080    stim_proc: <span class="vhdlkeyword">process</span>
<a name="l00081"></a>00081    <span class="vhdlkeyword">begin</span>                <span class="keyword"></span>
<a name="l00082"></a>00082 <span class="keyword">      -- Setup communication blocks</span>
<a name="l00083"></a>00083                 <span class="vhdlchar"><a class="code" href="classtest_uart__communication__block_1_1behavior.html#a248880720a09137a5e04e70521001f1b" title="Signal to connect with UUT.">rst</a></span> <span class="vhdlchar">&lt;=</span> <span class="vhdlchar">&#39;</span><span class="vhdllogic"></span><span class="vhdllogic">1</span><span class="vhdlchar">&#39;</span>;
<a name="l00084"></a>00084                 <span class="vhdlchar"><a class="code" href="classtest_uart__communication__block_1_1behavior.html#aa9ffae81538ad5181d6c756c3cd7df2e" title="Signal to connect with UUT.">serial_in</a></span> <span class="vhdlchar">&lt;=</span> <span class="vhdlchar">&#39;</span><span class="vhdllogic"></span><span class="vhdllogic">1</span><span class="vhdlchar">&#39;</span>;<span class="keyword"> -- Idle..</span>
<a name="l00085"></a>00085                 <span class="vhdlchar"><a class="code" href="classtest_uart__communication__block_1_1behavior.html#a4c08915531add3ce903585abd8aa7c32" title="Signal to connect with UUT.">cycle_wait_baud</a></span> <span class="vhdlchar">&lt;=</span> <span class="vhdlchar">conv_std_logic_vector</span><span class="vhdlchar">(</span><span class="vhdllogic"></span><span class="vhdllogic">434</span><span class="vhdlchar">,</span> <span class="vhdlchar">(</span><span class="vhdlchar">nBitsLarge</span><span class="vhdlchar">)</span><span class="vhdlchar">)</span>;
<a name="l00086"></a>00086                 <span class="vhdlchar"><a class="code" href="classtest_uart__communication__block_1_1behavior.html#acc9c08fe2957eb6987969db4ad32eb3f" title="Signal to connect with UUT.">start_tx</a></span> <span class="vhdlchar">&lt;=</span> <span class="vhdlchar">&#39;</span><span class="vhdllogic"></span><span class="vhdllogic">0</span><span class="vhdlchar">&#39;</span>;
<a name="l00087"></a>00087       <span class="vhdlkeyword">wait</span> <span class="vhdlkeyword">for</span> <span class="vhdllogic"></span><span class="vhdllogic">2</span> <span class="vhdlchar">ns</span>;    
<a name="l00088"></a>00088                 <span class="vhdlchar"><a class="code" href="classtest_uart__communication__block_1_1behavior.html#a248880720a09137a5e04e70521001f1b" title="Signal to connect with UUT.">rst</a></span> <span class="vhdlchar">&lt;=</span> <span class="vhdlchar">&#39;</span><span class="vhdllogic"></span><span class="vhdllogic">0</span><span class="vhdlchar">&#39;</span>;
<a name="l00089"></a>00089                 <span class="keyword"></span>
<a name="l00090"></a>00090 <span class="keyword">                -- Send data..</span>
<a name="l00091"></a>00091                 <span class="vhdlchar"><a class="code" href="classtest_uart__communication__block_1_1behavior.html#acc9c08fe2957eb6987969db4ad32eb3f" title="Signal to connect with UUT.">start_tx</a></span> <span class="vhdlchar">&lt;=</span> <span class="vhdlchar">&#39;</span><span class="vhdllogic"></span><span class="vhdllogic">1</span><span class="vhdlchar">&#39;</span>;
<a name="l00092"></a>00092                 <span class="vhdlchar"><a class="code" href="classtest_uart__communication__block_1_1behavior.html#a51999b58f4bf8bec91d41e23ba241e9f" title="Signal to connect with UUT.">byte_tx</a></span> <span class="vhdlchar">&lt;=</span> <span class="vhdllogic">&quot;01010101&quot;</span>;
<a name="l00093"></a>00093                 <span class="vhdlkeyword">wait</span> <span class="vhdlkeyword">until</span> <span class="vhdlchar"><a class="code" href="classtest_uart__communication__block_1_1behavior.html#a8f1ff141670d1dee066d28d88e7c7332" title="Signal to connect with UUT.">data_sent_tx</a></span> <span class="vhdlchar">=</span> <span class="vhdlchar">&#39;</span><span class="vhdllogic"></span><span class="vhdllogic">1</span><span class="vhdlchar">&#39;</span>;          
<a name="l00094"></a>00094 
<a name="l00095"></a>00095       <span class="vhdlkeyword">wait</span> <span class="vhdlkeyword">for</span> <span class="vhdlchar">clk_period</span><span class="vhdlchar">*</span><span class="vhdllogic"></span><span class="vhdllogic">3</span>;
<a name="l00096"></a>00096                 <span class="vhdlchar"><a class="code" href="classtest_uart__communication__block_1_1behavior.html#acc9c08fe2957eb6987969db4ad32eb3f" title="Signal to connect with UUT.">start_tx</a></span> <span class="vhdlchar">&lt;=</span> <span class="vhdlchar">&#39;</span><span class="vhdllogic"></span><span class="vhdllogic">0</span><span class="vhdlchar">&#39;</span>;
<a name="l00097"></a>00097                 <span class="vhdlkeyword">wait</span> <span class="vhdlkeyword">for</span> <span class="vhdlchar">clk_period</span><span class="vhdlchar">*</span><span class="vhdllogic"></span><span class="vhdllogic">3</span>;
<a name="l00098"></a>00098                 
<a name="l00099"></a>00099                 <span class="vhdlchar"><a class="code" href="classtest_uart__communication__block_1_1behavior.html#acc9c08fe2957eb6987969db4ad32eb3f" title="Signal to connect with UUT.">start_tx</a></span> <span class="vhdlchar">&lt;=</span> <span class="vhdlchar">&#39;</span><span class="vhdllogic"></span><span class="vhdllogic">1</span><span class="vhdlchar">&#39;</span>;
<a name="l00100"></a>00100                 <span class="vhdlchar"><a class="code" href="classtest_uart__communication__block_1_1behavior.html#a51999b58f4bf8bec91d41e23ba241e9f" title="Signal to connect with UUT.">byte_tx</a></span> <span class="vhdlchar">&lt;=</span> <span class="vhdllogic">&quot;11000100&quot;</span>;
<a name="l00101"></a>00101                 <span class="vhdlkeyword">wait</span> <span class="vhdlkeyword">until</span> <span class="vhdlchar"><a class="code" href="classtest_uart__communication__block_1_1behavior.html#a8f1ff141670d1dee066d28d88e7c7332" title="Signal to connect with UUT.">data_sent_tx</a></span> <span class="vhdlchar">=</span> <span class="vhdlchar">&#39;</span><span class="vhdllogic"></span><span class="vhdllogic">1</span><span class="vhdlchar">&#39;</span>;
<a name="l00102"></a>00102                 
<a name="l00103"></a>00103                 <span class="vhdlkeyword">wait</span> <span class="vhdlkeyword">for</span> <span class="vhdlchar">clk_period</span><span class="vhdlchar">*</span><span class="vhdllogic"></span><span class="vhdllogic">3</span>;
<a name="l00104"></a>00104                 <span class="vhdlchar"><a class="code" href="classtest_uart__communication__block_1_1behavior.html#acc9c08fe2957eb6987969db4ad32eb3f" title="Signal to connect with UUT.">start_tx</a></span> <span class="vhdlchar">&lt;=</span> <span class="vhdlchar">&#39;</span><span class="vhdllogic"></span><span class="vhdllogic">0</span><span class="vhdlchar">&#39;</span>;
<a name="l00105"></a>00105                 <span class="vhdlkeyword">wait</span> <span class="vhdlkeyword">for</span> <span class="vhdlchar">clk_period</span><span class="vhdlchar">*</span><span class="vhdllogic"></span><span class="vhdllogic">3</span>;
<a name="l00106"></a>00106                 <span class="keyword"></span>
<a name="l00107"></a>00107 <span class="keyword">                -- Receive data...</span><span class="keyword"></span>
<a name="l00108"></a>00108 <span class="keyword">                -- Receive </span><span class="vhdllogic">0x55</span> value (<span class="vhdllogic">01010101</span>)
<a name="l00109"></a>00109                 <span class="vhdlchar"><a class="code" href="classtest_uart__communication__block_1_1behavior.html#aa9ffae81538ad5181d6c756c3cd7df2e" title="Signal to connect with UUT.">serial_in</a></span> <span class="vhdlchar">&lt;=</span> <span class="vhdlchar">&#39;</span><span class="vhdllogic"></span><span class="vhdllogic">0</span><span class="vhdlchar">&#39;</span>;<span class="keyword"> -- Start <span class="comment">bit</span></span>
<a name="l00110"></a>00110                 <span class="vhdlkeyword">wait</span> <span class="vhdlkeyword">for</span> <span class="vhdllogic"></span><span class="vhdllogic">8</span>.<span class="vhdllogic">68</span> <span class="vhdlchar">us</span>;
<a name="l00111"></a>00111                 
<a name="l00112"></a>00112                 <span class="vhdlchar"><a class="code" href="classtest_uart__communication__block_1_1behavior.html#aa9ffae81538ad5181d6c756c3cd7df2e" title="Signal to connect with UUT.">serial_in</a></span> <span class="vhdlchar">&lt;=</span> <span class="vhdlchar">&#39;</span><span class="vhdllogic"></span><span class="vhdllogic">1</span><span class="vhdlchar">&#39;</span>;
<a name="l00113"></a>00113       <span class="vhdlkeyword">wait</span> <span class="vhdlkeyword">for</span> <span class="vhdllogic"></span><span class="vhdllogic">8</span>.<span class="vhdllogic">68</span> <span class="vhdlchar">us</span>;
<a name="l00114"></a>00114                 <span class="vhdlchar"><a class="code" href="classtest_uart__communication__block_1_1behavior.html#aa9ffae81538ad5181d6c756c3cd7df2e" title="Signal to connect with UUT.">serial_in</a></span> <span class="vhdlchar">&lt;=</span> <span class="vhdlchar">&#39;</span><span class="vhdllogic"></span><span class="vhdllogic">0</span><span class="vhdlchar">&#39;</span>;
<a name="l00115"></a>00115       <span class="vhdlkeyword">wait</span> <span class="vhdlkeyword">for</span> <span class="vhdllogic"></span><span class="vhdllogic">8</span>.<span class="vhdllogic">68</span> <span class="vhdlchar">us</span>;
<a name="l00116"></a>00116                 <span class="vhdlchar"><a class="code" href="classtest_uart__communication__block_1_1behavior.html#aa9ffae81538ad5181d6c756c3cd7df2e" title="Signal to connect with UUT.">serial_in</a></span> <span class="vhdlchar">&lt;=</span> <span class="vhdlchar">&#39;</span><span class="vhdllogic"></span><span class="vhdllogic">1</span><span class="vhdlchar">&#39;</span>;
<a name="l00117"></a>00117       <span class="vhdlkeyword">wait</span> <span class="vhdlkeyword">for</span> <span class="vhdllogic"></span><span class="vhdllogic">8</span>.<span class="vhdllogic">68</span> <span class="vhdlchar">us</span>;
<a name="l00118"></a>00118                 <span class="vhdlchar"><a class="code" href="classtest_uart__communication__block_1_1behavior.html#aa9ffae81538ad5181d6c756c3cd7df2e" title="Signal to connect with UUT.">serial_in</a></span> <span class="vhdlchar">&lt;=</span> <span class="vhdlchar">&#39;</span><span class="vhdllogic"></span><span class="vhdllogic">0</span><span class="vhdlchar">&#39;</span>;
<a name="l00119"></a>00119       <span class="vhdlkeyword">wait</span> <span class="vhdlkeyword">for</span> <span class="vhdllogic"></span><span class="vhdllogic">8</span>.<span class="vhdllogic">68</span> <span class="vhdlchar">us</span>;
<a name="l00120"></a>00120                 <span class="vhdlchar"><a class="code" href="classtest_uart__communication__block_1_1behavior.html#aa9ffae81538ad5181d6c756c3cd7df2e" title="Signal to connect with UUT.">serial_in</a></span> <span class="vhdlchar">&lt;=</span> <span class="vhdlchar">&#39;</span><span class="vhdllogic"></span><span class="vhdllogic">1</span><span class="vhdlchar">&#39;</span>;
<a name="l00121"></a>00121       <span class="vhdlkeyword">wait</span> <span class="vhdlkeyword">for</span> <span class="vhdllogic"></span><span class="vhdllogic">8</span>.<span class="vhdllogic">68</span> <span class="vhdlchar">us</span>;
<a name="l00122"></a>00122                 <span class="vhdlchar"><a class="code" href="classtest_uart__communication__block_1_1behavior.html#aa9ffae81538ad5181d6c756c3cd7df2e" title="Signal to connect with UUT.">serial_in</a></span> <span class="vhdlchar">&lt;=</span> <span class="vhdlchar">&#39;</span><span class="vhdllogic"></span><span class="vhdllogic">0</span><span class="vhdlchar">&#39;</span>;
<a name="l00123"></a>00123       <span class="vhdlkeyword">wait</span> <span class="vhdlkeyword">for</span> <span class="vhdllogic"></span><span class="vhdllogic">8</span>.<span class="vhdllogic">68</span> <span class="vhdlchar">us</span>;
<a name="l00124"></a>00124                 <span class="vhdlchar"><a class="code" href="classtest_uart__communication__block_1_1behavior.html#aa9ffae81538ad5181d6c756c3cd7df2e" title="Signal to connect with UUT.">serial_in</a></span> <span class="vhdlchar">&lt;=</span> <span class="vhdlchar">&#39;</span><span class="vhdllogic"></span><span class="vhdllogic">1</span><span class="vhdlchar">&#39;</span>;
<a name="l00125"></a>00125       <span class="vhdlkeyword">wait</span> <span class="vhdlkeyword">for</span> <span class="vhdllogic"></span><span class="vhdllogic">8</span>.<span class="vhdllogic">68</span> <span class="vhdlchar">us</span>;
<a name="l00126"></a>00126                 <span class="vhdlchar"><a class="code" href="classtest_uart__communication__block_1_1behavior.html#aa9ffae81538ad5181d6c756c3cd7df2e" title="Signal to connect with UUT.">serial_in</a></span> <span class="vhdlchar">&lt;=</span> <span class="vhdlchar">&#39;</span><span class="vhdllogic"></span><span class="vhdllogic">0</span><span class="vhdlchar">&#39;</span>;
<a name="l00127"></a>00127       <span class="vhdlkeyword">wait</span> <span class="vhdlkeyword">for</span> <span class="vhdllogic"></span><span class="vhdllogic">8</span>.<span class="vhdllogic">68</span> <span class="vhdlchar">us</span>;
<a name="l00128"></a>00128                 <span class="keyword"></span>
<a name="l00129"></a>00129 <span class="keyword">                -- Stop <span class="comment">bit</span> here</span>
<a name="l00130"></a>00130                 <span class="vhdlchar"><a class="code" href="classtest_uart__communication__block_1_1behavior.html#aa9ffae81538ad5181d6c756c3cd7df2e" title="Signal to connect with UUT.">serial_in</a></span> <span class="vhdlchar">&lt;=</span> <span class="vhdlchar">&#39;</span><span class="vhdllogic"></span><span class="vhdllogic">1</span><span class="vhdlchar">&#39;</span>;
<a name="l00131"></a>00131                 <span class="vhdlkeyword">wait</span> <span class="vhdlkeyword">for</span> <span class="vhdlchar">clk_period</span><span class="vhdlchar">*</span><span class="vhdllogic"></span><span class="vhdllogic">200</span>;
<a name="l00132"></a>00132                 <span class="keyword"></span>
<a name="l00133"></a>00133 <span class="keyword">                -- Receive </span><span class="vhdllogic">0xC4</span> value (<span class="vhdllogic">11000100</span>)
<a name="l00134"></a>00134                 <span class="vhdlchar"><a class="code" href="classtest_uart__communication__block_1_1behavior.html#aa9ffae81538ad5181d6c756c3cd7df2e" title="Signal to connect with UUT.">serial_in</a></span> <span class="vhdlchar">&lt;=</span> <span class="vhdlchar">&#39;</span><span class="vhdllogic"></span><span class="vhdllogic">0</span><span class="vhdlchar">&#39;</span>;<span class="keyword"> -- Start <span class="comment">bit</span></span>
<a name="l00135"></a>00135                 <span class="vhdlkeyword">wait</span> <span class="vhdlkeyword">for</span> <span class="vhdllogic"></span><span class="vhdllogic">8</span>.<span class="vhdllogic">68</span> <span class="vhdlchar">us</span>;
<a name="l00136"></a>00136                 
<a name="l00137"></a>00137                 <span class="vhdlchar"><a class="code" href="classtest_uart__communication__block_1_1behavior.html#aa9ffae81538ad5181d6c756c3cd7df2e" title="Signal to connect with UUT.">serial_in</a></span> <span class="vhdlchar">&lt;=</span> <span class="vhdlchar">&#39;</span><span class="vhdllogic"></span><span class="vhdllogic">0</span><span class="vhdlchar">&#39;</span>;
<a name="l00138"></a>00138       <span class="vhdlkeyword">wait</span> <span class="vhdlkeyword">for</span> <span class="vhdllogic"></span><span class="vhdllogic">8</span>.<span class="vhdllogic">68</span> <span class="vhdlchar">us</span>;
<a name="l00139"></a>00139                 <span class="vhdlchar"><a class="code" href="classtest_uart__communication__block_1_1behavior.html#aa9ffae81538ad5181d6c756c3cd7df2e" title="Signal to connect with UUT.">serial_in</a></span> <span class="vhdlchar">&lt;=</span> <span class="vhdlchar">&#39;</span><span class="vhdllogic"></span><span class="vhdllogic">0</span><span class="vhdlchar">&#39;</span>;
<a name="l00140"></a>00140       <span class="vhdlkeyword">wait</span> <span class="vhdlkeyword">for</span> <span class="vhdllogic"></span><span class="vhdllogic">8</span>.<span class="vhdllogic">68</span> <span class="vhdlchar">us</span>;
<a name="l00141"></a>00141                 <span class="vhdlchar"><a class="code" href="classtest_uart__communication__block_1_1behavior.html#aa9ffae81538ad5181d6c756c3cd7df2e" title="Signal to connect with UUT.">serial_in</a></span> <span class="vhdlchar">&lt;=</span> <span class="vhdlchar">&#39;</span><span class="vhdllogic"></span><span class="vhdllogic">1</span><span class="vhdlchar">&#39;</span>;
<a name="l00142"></a>00142       <span class="vhdlkeyword">wait</span> <span class="vhdlkeyword">for</span> <span class="vhdllogic"></span><span class="vhdllogic">8</span>.<span class="vhdllogic">68</span> <span class="vhdlchar">us</span>;
<a name="l00143"></a>00143                 <span class="vhdlchar"><a class="code" href="classtest_uart__communication__block_1_1behavior.html#aa9ffae81538ad5181d6c756c3cd7df2e" title="Signal to connect with UUT.">serial_in</a></span> <span class="vhdlchar">&lt;=</span> <span class="vhdlchar">&#39;</span><span class="vhdllogic"></span><span class="vhdllogic">0</span><span class="vhdlchar">&#39;</span>;
<a name="l00144"></a>00144       <span class="vhdlkeyword">wait</span> <span class="vhdlkeyword">for</span> <span class="vhdllogic"></span><span class="vhdllogic">8</span>.<span class="vhdllogic">68</span> <span class="vhdlchar">us</span>;
<a name="l00145"></a>00145                 <span class="vhdlchar"><a class="code" href="classtest_uart__communication__block_1_1behavior.html#aa9ffae81538ad5181d6c756c3cd7df2e" title="Signal to connect with UUT.">serial_in</a></span> <span class="vhdlchar">&lt;=</span> <span class="vhdlchar">&#39;</span><span class="vhdllogic"></span><span class="vhdllogic">0</span><span class="vhdlchar">&#39;</span>;
<a name="l00146"></a>00146       <span class="vhdlkeyword">wait</span> <span class="vhdlkeyword">for</span> <span class="vhdllogic"></span><span class="vhdllogic">8</span>.<span class="vhdllogic">68</span> <span class="vhdlchar">us</span>;
<a name="l00147"></a>00147                 <span class="vhdlchar"><a class="code" href="classtest_uart__communication__block_1_1behavior.html#aa9ffae81538ad5181d6c756c3cd7df2e" title="Signal to connect with UUT.">serial_in</a></span> <span class="vhdlchar">&lt;=</span> <span class="vhdlchar">&#39;</span><span class="vhdllogic"></span><span class="vhdllogic">0</span><span class="vhdlchar">&#39;</span>;
<a name="l00148"></a>00148       <span class="vhdlkeyword">wait</span> <span class="vhdlkeyword">for</span> <span class="vhdllogic"></span><span class="vhdllogic">8</span>.<span class="vhdllogic">68</span> <span class="vhdlchar">us</span>;
<a name="l00149"></a>00149                 <span class="vhdlchar"><a class="code" href="classtest_uart__communication__block_1_1behavior.html#aa9ffae81538ad5181d6c756c3cd7df2e" title="Signal to connect with UUT.">serial_in</a></span> <span class="vhdlchar">&lt;=</span> <span class="vhdlchar">&#39;</span><span class="vhdllogic"></span><span class="vhdllogic">1</span><span class="vhdlchar">&#39;</span>;
<a name="l00150"></a>00150       <span class="vhdlkeyword">wait</span> <span class="vhdlkeyword">for</span> <span class="vhdllogic"></span><span class="vhdllogic">8</span>.<span class="vhdllogic">68</span> <span class="vhdlchar">us</span>;
<a name="l00151"></a>00151                 <span class="vhdlchar"><a class="code" href="classtest_uart__communication__block_1_1behavior.html#aa9ffae81538ad5181d6c756c3cd7df2e" title="Signal to connect with UUT.">serial_in</a></span> <span class="vhdlchar">&lt;=</span> <span class="vhdlchar">&#39;</span><span class="vhdllogic"></span><span class="vhdllogic">1</span><span class="vhdlchar">&#39;</span>;
<a name="l00152"></a>00152       <span class="vhdlkeyword">wait</span> <span class="vhdlkeyword">for</span> <span class="vhdllogic"></span><span class="vhdllogic">8</span>.<span class="vhdllogic">68</span> <span class="vhdlchar">us</span>;
<a name="l00153"></a>00153                 <span class="keyword"></span>
<a name="l00154"></a>00154 <span class="keyword">                -- Stop <span class="comment">bit</span> here</span>
<a name="l00155"></a>00155                 <span class="vhdlchar"><a class="code" href="classtest_uart__communication__block_1_1behavior.html#aa9ffae81538ad5181d6c756c3cd7df2e" title="Signal to connect with UUT.">serial_in</a></span> <span class="vhdlchar">&lt;=</span> <span class="vhdlchar">&#39;</span><span class="vhdllogic"></span><span class="vhdllogic">1</span><span class="vhdlchar">&#39;</span>;
<a name="l00156"></a>00156                 <span class="vhdlkeyword">wait</span> <span class="vhdlkeyword">for</span> <span class="vhdlchar">clk_period</span><span class="vhdlchar">*</span><span class="vhdllogic"></span><span class="vhdllogic">200</span>;
<a name="l00157"></a>00157                 
<a name="l00158"></a>00158                                 
<a name="l00159"></a>00159 <span class="keyword"></span>
<a name="l00160"></a>00160 <span class="keyword">      -- Stop Simulation</span>
<a name="l00161"></a>00161                 <span class="vhdlkeyword">assert</span> <span class="vhdlchar">false</span> <span class="vhdlkeyword">report</span> <span class="keyword">&quot;NONE. End of simulation.&quot;</span> <span class="vhdlkeyword">severity</span> <span class="vhdlchar">failure</span>;
<a name="l00162"></a>00162                 
<a name="l00163"></a>00163    <span class="vhdlkeyword">end</span> <span class="vhdlkeyword">process</span>;
<a name="l00164"></a>00164 
<a name="l00165"></a>00165 <span class="vhdlkeyword">END</span>;
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