ax88796_8c-source.html

单片机的软件

00468     <span class="keywordflow">if</span>(cmdReg &amp; TXP)
00469     {
00470         <span class="comment">// check if the transmit completed</span>
00471         cmdReg = ax88796Read(ISR);
00472         <span class="keywordflow">if</span>((cmdReg &amp; PTX) || (cmdReg &amp; TXE))
00473             resend = 0;     <span class="comment">// transmit completed</span>
00474         <span class="keywordflow">else</span>
00475             resend = 1;     <span class="comment">// transmit was interrupted, must resend</span>
00476     }
00477     <span class="comment">// switch to loopback mode</span>
00478     ax88796Write(TCR, LB0);
00479     <span class="comment">// start the interface</span>
00480     ax88796Write(CR, (RD2|START));
00481     <span class="comment">// set boundary</span>
00482     ax88796Write(BNRY, RXSTART_INIT);
00483     <span class="comment">// go to page 1</span>
00484     ax88796Write(CR, (PS0|RD2|START));
00485     <span class="comment">// set current page register</span>
00486     ax88796Write(CPR, RXSTART_INIT+1);
00487     <span class="comment">// go to page 0</span>
00488     ax88796Write(CR, (RD2|START));
00489     <span class="comment">// clear the overflow int</span>
00490     ax88796Write(ISR, OVW);
00491     <span class="comment">// switch to normal (non-loopback mode)</span>
00492     ax88796Write(TCR, TCR_INIT);
00493 
00494     <span class="comment">// if previous transmit was interrupted, then resend</span>
00495     <span class="keywordflow">if</span>(resend)
00496         ax88796Write(CR, (RD2|TXP|START));
00497 
00498     <span class="comment">// recovery completed</span>
00499 }
00500 
00501 
00502 <span class="preprocessor">#define set_mdc     ax88796Write(MEMR,ax88796Read(MEMR)|0x01);</span>
00503 <span class="preprocessor"></span><span class="preprocessor">#define clr_mdc     ax88796Write(MEMR,ax88796Read(MEMR)&amp;0xFE);</span>
00504 <span class="preprocessor"></span>
00505 <span class="preprocessor">#define mii_clk     set_mdc; clr_mdc;                 </span>
00506 <span class="preprocessor"></span>                    
00507 <span class="preprocessor">#define set_mdir    ax88796Write(MEMR,ax88796Read(MEMR)|0x02);</span>
00508 <span class="preprocessor"></span><span class="preprocessor">#define clr_mdir    ax88796Write(MEMR,ax88796Read(MEMR)&amp;0xFD);</span>
00509 <span class="preprocessor"></span>                    
00510 <span class="preprocessor">#define set_mdo     ax88796Write(MEMR,ax88796Read(MEMR)|0x08)</span>
00511 <span class="preprocessor"></span><span class="preprocessor">#define clr_mdo     ax88796Write(MEMR,ax88796Read(MEMR)&amp;0xF7)</span>
00512 <span class="preprocessor"></span>
00513 <span class="preprocessor">#define mii_write   clr_mdo; mii_clk;   \</span>
00514 <span class="preprocessor">                    set_mdo; mii_clk;   \</span>
00515 <span class="preprocessor">                    clr_mdo; mii_clk;   \</span>
00516 <span class="preprocessor">                    set_mdo; mii_clk;</span>
00517 <span class="preprocessor"></span>
00518 <span class="preprocessor">#define mii_read    clr_mdo; mii_clk;   \</span>
00519 <span class="preprocessor">                    set_mdo; mii_clk;   \</span>
00520 <span class="preprocessor">                    set_mdo; mii_clk;   \</span>
00521 <span class="preprocessor">                    clr_mdo; mii_clk;</span>
00522 <span class="preprocessor"></span>
00523 <span class="preprocessor">#define mii_r_ta    mii_clk;            \</span>
00524 <span class="preprocessor"></span>
00525 <span class="preprocessor"></span><span class="preprocessor">#define mii_w_ta    set_mdo; mii_clk;   \</span>
00526 <span class="preprocessor">                    clr_mdo; mii_clk;</span>
00527 <span class="preprocessor"></span>            
00528 <span class="keywordtype">void</span> ax88796WriteMii(<span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> phyad,<span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> regad,<span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> mii_data)
00529 {
00530     <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> mask8;
00531     <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span>  i,mask16;
00532 
00533     mii_write;
00534  
00535     mask8 = 0x10;
00536     <span class="keywordflow">for</span>(i=0;i&lt;5;++i)
00537     {
00538         <span class="keywordflow">if</span>(mask8 &amp; phyad)
00539             set_mdo;
00540         <span class="keywordflow">else</span>
00541             clr_mdo;
00542         mii_clk;
00543         mask8 &gt;&gt;= 1;     
00544     }   
00545     mask8 = 0x10;
00546     <span class="keywordflow">for</span>(i=0;i&lt;5;++i)
00547     {
00548         <span class="keywordflow">if</span>(mask8 &amp; regad)
00549             set_mdo;
00550         <span class="keywordflow">else</span>
00551             clr_mdo;
00552         mii_clk;
00553         mask8 &gt;&gt;= 1;     
00554     }                       
00555     mii_w_ta;
00556  
00557     mask16 = 0x8000;
00558     <span class="keywordflow">for</span>(i=0;i&lt;16;++i)
00559     {
00560         <span class="keywordflow">if</span>(mask16 &amp; mii_data)
00561             set_mdo;
00562         <span class="keywordflow">else</span>
00563             clr_mdo;
00564         mii_clk;     
00565         mask16 &gt;&gt;= 1;    
00566     }               
00567 }
00568  
00569 <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> ax88796ReadMii(<span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> phyad,<span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> regad)
00570 {
00571     <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> mask8,i;
00572     <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span>  mask16,result16;
00573  
00574     mii_read;
00575 
00576     mask8 = 0x10;
00577     <span class="keywordflow">for</span>(i=0;i&lt;5;++i)
00578     {
00579         <span class="keywordflow">if</span>(mask8 &amp; phyad)
00580             set_mdo;
00581         <span class="keywordflow">else</span>
00582             clr_mdo;
00583         mii_clk;     
00584         mask8 &gt;&gt;= 1;
00585     }
00586     mask8 = 0x10;
00587     <span class="keywordflow">for</span>(i=0;i&lt;5;++i)
00588     {
00589         <span class="keywordflow">if</span>(mask8 &amp; regad)
00590             set_mdo;
00591         <span class="keywordflow">else</span>
00592             clr_mdo;
00593         mii_clk;
00594         mask8 &gt;&gt;= 1;
00595     }
00596             
00597     mii_r_ta;
00598  
00599     mask16 = 0x8000;
00600     result16 = 0x0000;
00601     <span class="keywordflow">for</span>(i=0;i&lt;16;++i)
00602     {
00603         mii_clk;
00604         <span class="keywordflow">if</span>(ax88796Read(MEMR) &amp; 0x04)
00605         {
00606             result16 |= mask16;
00607         }
00608         <span class="keywordflow">else</span>
00609         {
00610             <span class="keyword">asm</span> <span class="keyword">volatile</span> (<span class="stringliteral">"nop"</span>);
00611             <span class="keywordflow">break</span>;
00612         }
00613         mask16 &gt;&gt;= 1;
00614     }
00615     <span class="keywordflow">return</span> result16;
00616 }
00617 
00618 
00619 <span class="keywordtype">void</span> ax88796RegDump(<span class="keywordtype">void</span>)
00620 {
00621     <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> result;
00622     result = ax88796Read(TR);
00623     
00624     rprintf(<span class="stringliteral">"Media State: "</span>);
00625     <span class="keywordflow">if</span>(!(result &amp; AUTOD))
00626         rprintf(<span class="stringliteral">"Autonegotiation\r\n"</span>);
00627     <span class="keywordflow">else</span> <span class="keywordflow">if</span>(result &amp; RST_B)
00628         rprintf(<span class="stringliteral">"PHY in Reset   \r\n"</span>);
00629     <span class="keywordflow">else</span> <span class="keywordflow">if</span>(!(result &amp; RST_10B))
00630         rprintf(<span class="stringliteral">"10BASE-T       \r\n"</span>);
00631     <span class="keywordflow">else</span> <span class="keywordflow">if</span>(!(result &amp; RST_TXB))
00632         rprintf(<span class="stringliteral">"100BASE-T      \r\n"</span>);
00633                 
00634     <span class="comment">//rprintf("TR regsiter      : %x\r\n",result);</span>
00635     <span class="comment">//result = read_mii(0x10,0);</span>
00636     <span class="comment">//rprintf("MII regsiter 0x10: %x\r\n",result);</span>
00637 
00638     <a class="code" href="group__rprintf.html#ga15">rprintfProgStrM</a>(<span class="stringliteral">"Page0: CR  BNRY PSR PST ISR TSR RSR MMR TR  GPI\r\n"</span>);
00639     <a class="code" href="group__rprintf.html#ga15">rprintfProgStrM</a>(<span class="stringliteral">"       "</span>);
00640     <a class="code" href="group__rprintf.html#ga7">rprintfu08</a>(ax88796Read(CR));
00641     <a class="code" href="group__rprintf.html#ga15">rprintfProgStrM</a>(<span class="stringliteral">"  "</span>);
00642     <a class="code" href="group__rprintf.html#ga7">rprintfu08</a>(ax88796Read(BNRY));
00643     <a class="code" href="group__rprintf.html#ga15">rprintfProgStrM</a>(<span class="stringliteral">"   "</span>);
00644     <a class="code" href="group__rprintf.html#ga7">rprintfu08</a>(ax88796Read(PSTART));
00645     <a class="code" href="group__rprintf.html#ga15">rprintfProgStrM</a>(<span class="stringliteral">"  "</span>);
00646     <a class="code" href="group__rprintf.html#ga7">rprintfu08</a>(ax88796Read(PSTOP));
00647     <a class="code" href="group__rprintf.html#ga15">rprintfProgStrM</a>(<span class="stringliteral">"  "</span>);
00648     <a class="code" href="group__rprintf.html#ga7">rprintfu08</a>(ax88796Read(ISR));
00649     <a class="code" href="group__rprintf.html#ga15">rprintfProgStrM</a>(<span class="stringliteral">"  "</span>);
00650     <a class="code" href="group__rprintf.html#ga7">rprintfu08</a>(ax88796Read(TSR));
00651     <a class="code" href="group__rprintf.html#ga15">rprintfProgStrM</a>(<span class="stringliteral">"  "</span>);
00652     <a class="code" href="group__rprintf.html#ga7">rprintfu08</a>(ax88796Read(RSR));
00653     <a class="code" href="group__rprintf.html#ga15">rprintfProgStrM</a>(<span class="stringliteral">"  "</span>);
00654     <a class="code" href="group__rprintf.html#ga7">rprintfu08</a>(ax88796Read(MEMR));
00655     <a class="code" href="group__rprintf.html#ga15">rprintfProgStrM</a>(<span class="stringliteral">"  "</span>);
00656     <a class="code" href="group__rprintf.html#ga7">rprintfu08</a>(ax88796Read(TR));
00657     <a class="code" href="group__rprintf.html#ga15">rprintfProgStrM</a>(<span class="stringliteral">"  "</span>);
00658     <a class="code" href="group__rprintf.html#ga7">rprintfu08</a>(ax88796Read(GPI));
00659     <a class="code" href="group__rprintf.html#ga5">rprintfCRLF</a>();
00660 
00661     ax88796Write(CR,ax88796Read(CR)|PS0);
00662 
00663     rprintf(<span class="stringliteral">"Page1: CR  PAR    CPR\r\n"</span>);
00664     <a class="code" href="group__rprintf.html#ga15">rprintfProgStrM</a>(<span class="stringliteral">"       "</span>);
00665     <a class="code" href="group__rprintf.html#ga7">rprintfu08</a>(ax88796Read(CR));
00666     <a class="code" href="group__rprintf.html#ga15">rprintfProgStrM</a>(<span class="stringliteral">"  "</span>);
00667     <a class="code" href="group__rprintf.html#ga1">rprintfChar</a>(ax88796Read(PAR0));
00668     <a class="code" href="group__rprintf.html#ga1">rprintfChar</a>(ax88796Read(PAR1));
00669     <a class="code" href="group__rprintf.html#ga1">rprintfChar</a>(ax88796Read(PAR2));
00670     <a class="code" href="group__rprintf.html#ga1">rprintfChar</a>(ax88796Read(PAR3));
00671     <a class="code" href="group__rprintf.html#ga1">rprintfChar</a>(ax88796Read(PAR4));
00672     <a class="code" href="group__rprintf.html#ga1">rprintfChar</a>(ax88796Read(PAR5));
00673     <a class="code" href="group__rprintf.html#ga15">rprintfProgStrM</a>(<span class="stringliteral">" "</span>);
00674     <a class="code" href="group__rprintf.html#ga7">rprintfu08</a>(ax88796Read(CPR));
00675     
00676     ax88796Write(CR,ax88796Read(CR)&amp;~PS0);
00677 
00678     delay_ms(25);
00679 }
00680 
00681 <span class="comment">/*</span>
00682 <span class="comment">unsigned char ax88796ReceiveEmpty(void)</span>
00683 <span class="comment">{</span>
00684 <span class="comment">    unsigned char temp;</span>
00685 <span class="comment"></span>
00686 <span class="comment">    // read CPR from page 1</span>
00687 <span class="comment">    ax88796Write(CR,0x62);</span>
00688 <span class="comment">    temp = ax88796Read(CPR);</span>
00689 <span class="comment">    </span>
00690 <span class="comment">    // return to page 0</span>
00691 <span class="comment">    ax88796Write(CR,0x22);</span>
00692 <span class="comment">    </span>
00693 <span class="comment">    return ( ax88796Read(BNRY) == temp );</span>
00694 <span class="comment">    </span>
00695 <span class="comment">}*/</span>
00696 
00697 
00698 
00699 
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