enc28j60_8c-source.html

国外牛人公开的ＡＶＲ代码

00354 <span class="comment"></span>
00355 <span class="comment">    // Set the back-to-back inter-packet gap time to IEEE specified </span>
00356 <span class="comment">    // requirements.  The meaning of the MABBIPG value changes with the duplex</span>
00357 <span class="comment">    // state, so it must be updated in this function.</span>
00358 <span class="comment">    // In full duplex, 0x15 represents 9.6us; 0x12 is 9.6us in half duplex</span>
00359 <span class="comment">    //enc28j60Write(MABBIPG, DuplexState ? 0x15 : 0x12);    </span>
00360 <span class="comment">    </span>
00361 <span class="comment">    // Reenable receive logic</span>
00362 <span class="comment">    enc28j60WriteOp(ENC28J60_BIT_FIELD_SET, ECON1, ECON1_RXEN);</span>
00363 <span class="comment"></span>
00364 <span class="comment">    // setup duplex ----------------------</span>
00365 <span class="comment">*/</span>
00366 }
00367 
<a name="l00368"></a><a class="code" href="group__enc28j60.html#ga10">00368</a> <span class="keywordtype">void</span> <a class="code" href="group__enc28j60.html#ga10">enc28j60PacketSend</a>(<span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> len, <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span>* packet)
00369 {
00370     <span class="comment">// Set the write pointer to start of transmit buffer area</span>
00371     <a class="code" href="group__enc28j60.html#ga6">enc28j60Write</a>(EWRPTL, TXSTART_INIT);
00372     <a class="code" href="group__enc28j60.html#ga6">enc28j60Write</a>(EWRPTH, TXSTART_INIT&gt;&gt;8);
00373     <span class="comment">// Set the TXND pointer to correspond to the packet size given</span>
00374     <a class="code" href="group__enc28j60.html#ga6">enc28j60Write</a>(ETXNDL, (TXSTART_INIT+len));
00375     <a class="code" href="group__enc28j60.html#ga6">enc28j60Write</a>(ETXNDH, (TXSTART_INIT+len)&gt;&gt;8);
00376 
00377     <span class="comment">// write per-packet control byte</span>
00378     <a class="code" href="group__enc28j60.html#ga1">enc28j60WriteOp</a>(ENC28J60_WRITE_BUF_MEM, 0, 0x00);
00379 
00380     <span class="comment">// copy the packet into the transmit buffer</span>
00381     <a class="code" href="group__enc28j60.html#ga3">enc28j60WriteBuffer</a>(len, packet);
00382     
00383     <span class="comment">// send the contents of the transmit buffer onto the network</span>
00384     <a class="code" href="group__enc28j60.html#ga1">enc28j60WriteOp</a>(ENC28J60_BIT_FIELD_SET, ECON1, ECON1_TXRTS);
00385 }
00386 
<a name="l00387"></a><a class="code" href="group__enc28j60.html#ga11">00387</a> <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> <a class="code" href="group__enc28j60.html#ga11">enc28j60PacketReceive</a>(<span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> maxlen, <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span>* packet)
00388 {
00389     u16 rxstat;
00390     u16 len;
00391 
00392     <span class="comment">// check if a packet has been received and buffered</span>
00393     <span class="keywordflow">if</span>( !(<a class="code" href="group__enc28j60.html#ga5">enc28j60Read</a>(EIR) &amp; EIR_PKTIF) )
00394         <span class="keywordflow">return</span> 0;
00395     
00396     <span class="comment">// Make absolutely certain that any previous packet was discarded   </span>
00397     <span class="comment">//if( WasDiscarded == FALSE)</span>
00398     <span class="comment">//  MACDiscardRx();</span>
00399 
00400     <span class="comment">// Set the read pointer to the start of the received packet</span>
00401     <a class="code" href="group__enc28j60.html#ga6">enc28j60Write</a>(ERDPTL, (NextPacketPtr));
00402     <a class="code" href="group__enc28j60.html#ga6">enc28j60Write</a>(ERDPTH, (NextPacketPtr)&gt;&gt;8);
00403     <span class="comment">// read the next packet pointer</span>
00404     NextPacketPtr  = <a class="code" href="group__enc28j60.html#ga0">enc28j60ReadOp</a>(ENC28J60_READ_BUF_MEM, 0);
00405     NextPacketPtr |= <a class="code" href="group__enc28j60.html#ga0">enc28j60ReadOp</a>(ENC28J60_READ_BUF_MEM, 0)&lt;&lt;8;
00406     <span class="comment">// read the packet length</span>
00407     len  = <a class="code" href="group__enc28j60.html#ga0">enc28j60ReadOp</a>(ENC28J60_READ_BUF_MEM, 0);
00408     len |= <a class="code" href="group__enc28j60.html#ga0">enc28j60ReadOp</a>(ENC28J60_READ_BUF_MEM, 0)&lt;&lt;8;
00409     <span class="comment">// read the receive status</span>
00410     rxstat  = <a class="code" href="group__enc28j60.html#ga0">enc28j60ReadOp</a>(ENC28J60_READ_BUF_MEM, 0);
00411     rxstat |= <a class="code" href="group__enc28j60.html#ga0">enc28j60ReadOp</a>(ENC28J60_READ_BUF_MEM, 0)&lt;&lt;8;
00412 
00413     <span class="comment">// limit retrieve length</span>
00414     <span class="comment">// (we reduce the MAC-reported length by 4 to remove the CRC)</span>
00415     len = MIN(len, maxlen);
00416 
00417     <span class="comment">// copy the packet from the receive buffer</span>
00418     <a class="code" href="group__enc28j60.html#ga2">enc28j60ReadBuffer</a>(len, packet);
00419 
00420     <span class="comment">// Move the RX read pointer to the start of the next received packet</span>
00421     <span class="comment">// This frees the memory we just read out</span>
00422     <a class="code" href="group__enc28j60.html#ga6">enc28j60Write</a>(ERXRDPTL, (NextPacketPtr));
00423     <a class="code" href="group__enc28j60.html#ga6">enc28j60Write</a>(ERXRDPTH, (NextPacketPtr)&gt;&gt;8);
00424 
00425     <span class="comment">// decrement the packet counter indicate we are done with this packet</span>
00426     <a class="code" href="group__enc28j60.html#ga1">enc28j60WriteOp</a>(ENC28J60_BIT_FIELD_SET, ECON2, ECON2_PKTDEC);
00427 
00428     <span class="keywordflow">return</span> len;
00429 }
00430 
<a name="l00431"></a><a class="code" href="group__enc28j60.html#ga12">00431</a> <span class="keywordtype">void</span> <a class="code" href="group__enc28j60.html#ga12">enc28j60ReceiveOverflowRecover</a>(<span class="keywordtype">void</span>)
00432 {
00433     <span class="comment">// receive buffer overflow handling procedure</span>
00434 
00435     <span class="comment">// recovery completed</span>
00436 }
00437 
<a name="l00438"></a><a class="code" href="group__enc28j60.html#ga13">00438</a> <span class="keywordtype">void</span> <a class="code" href="group__enc28j60.html#ga13">enc28j60RegDump</a>(<span class="keywordtype">void</span>)
00439 {
00440 <span class="comment">//  unsigned char macaddr[6];</span>
00441 <span class="comment">//  result = ax88796Read(TR);</span>
00442     
00443 <span class="comment">//  rprintf("Media State: ");</span>
00444 <span class="comment">//  if(!(result &amp; AUTOD))</span>
00445 <span class="comment">//      rprintf("Autonegotiation\r\n");</span>
00446 <span class="comment">//  else if(result &amp; RST_B)</span>
00447 <span class="comment">//      rprintf("PHY in Reset   \r\n");</span>
00448 <span class="comment">//  else if(!(result &amp; RST_10B))</span>
00449 <span class="comment">//      rprintf("10BASE-T       \r\n");</span>
00450 <span class="comment">//  else if(!(result &amp; RST_TXB))</span>
00451 <span class="comment">//      rprintf("100BASE-T      \r\n");</span>
00452                 
00453     rprintf(<span class="stringliteral">"RevID: 0x%x\r\n"</span>, <a class="code" href="group__enc28j60.html#ga5">enc28j60Read</a>(EREVID));
00454 
00455     <a class="code" href="group__rprintf.html#ga15">rprintfProgStrM</a>(<span class="stringliteral">"Cntrl: ECON1 ECON2 ESTAT  EIR  EIE\r\n"</span>);
00456     <a class="code" href="group__rprintf.html#ga15">rprintfProgStrM</a>(<span class="stringliteral">"         "</span>);
00457     <a class="code" href="group__rprintf.html#ga7">rprintfu08</a>(<a class="code" href="group__enc28j60.html#ga5">enc28j60Read</a>(ECON1));
00458     <a class="code" href="group__rprintf.html#ga15">rprintfProgStrM</a>(<span class="stringliteral">"    "</span>);
00459     <a class="code" href="group__rprintf.html#ga7">rprintfu08</a>(<a class="code" href="group__enc28j60.html#ga5">enc28j60Read</a>(ECON2));
00460     <a class="code" href="group__rprintf.html#ga15">rprintfProgStrM</a>(<span class="stringliteral">"    "</span>);
00461     <a class="code" href="group__rprintf.html#ga7">rprintfu08</a>(<a class="code" href="group__enc28j60.html#ga5">enc28j60Read</a>(ESTAT));
00462     <a class="code" href="group__rprintf.html#ga15">rprintfProgStrM</a>(<span class="stringliteral">"    "</span>);
00463     <a class="code" href="group__rprintf.html#ga7">rprintfu08</a>(<a class="code" href="group__enc28j60.html#ga5">enc28j60Read</a>(EIR));
00464     <a class="code" href="group__rprintf.html#ga15">rprintfProgStrM</a>(<span class="stringliteral">"   "</span>);
00465     <a class="code" href="group__rprintf.html#ga7">rprintfu08</a>(<a class="code" href="group__enc28j60.html#ga5">enc28j60Read</a>(EIE));
00466     <a class="code" href="group__rprintf.html#ga5">rprintfCRLF</a>();
00467 
00468     <a class="code" href="group__rprintf.html#ga15">rprintfProgStrM</a>(<span class="stringliteral">"MAC  : MACON1  MACON2  MACON3  MACON4  MAC-Address\r\n"</span>);
00469     <a class="code" href="group__rprintf.html#ga15">rprintfProgStrM</a>(<span class="stringliteral">"        0x"</span>);
00470     <a class="code" href="group__rprintf.html#ga7">rprintfu08</a>(<a class="code" href="group__enc28j60.html#ga5">enc28j60Read</a>(MACON1));
00471     <a class="code" href="group__rprintf.html#ga15">rprintfProgStrM</a>(<span class="stringliteral">"    0x"</span>);
00472     <a class="code" href="group__rprintf.html#ga7">rprintfu08</a>(<a class="code" href="group__enc28j60.html#ga5">enc28j60Read</a>(MACON2));
00473     <a class="code" href="group__rprintf.html#ga15">rprintfProgStrM</a>(<span class="stringliteral">"    0x"</span>);
00474     <a class="code" href="group__rprintf.html#ga7">rprintfu08</a>(<a class="code" href="group__enc28j60.html#ga5">enc28j60Read</a>(MACON3));
00475     <a class="code" href="group__rprintf.html#ga15">rprintfProgStrM</a>(<span class="stringliteral">"    0x"</span>);
00476     <a class="code" href="group__rprintf.html#ga7">rprintfu08</a>(<a class="code" href="group__enc28j60.html#ga5">enc28j60Read</a>(MACON4));
00477     <a class="code" href="group__rprintf.html#ga15">rprintfProgStrM</a>(<span class="stringliteral">"   "</span>);
00478     <a class="code" href="group__rprintf.html#ga7">rprintfu08</a>(<a class="code" href="group__enc28j60.html#ga5">enc28j60Read</a>(MAADR5));
00479     <a class="code" href="group__rprintf.html#ga7">rprintfu08</a>(<a class="code" href="group__enc28j60.html#ga5">enc28j60Read</a>(MAADR4));
00480     <a class="code" href="group__rprintf.html#ga7">rprintfu08</a>(<a class="code" href="group__enc28j60.html#ga5">enc28j60Read</a>(MAADR3));
00481     <a class="code" href="group__rprintf.html#ga7">rprintfu08</a>(<a class="code" href="group__enc28j60.html#ga5">enc28j60Read</a>(MAADR2));
00482     <a class="code" href="group__rprintf.html#ga7">rprintfu08</a>(<a class="code" href="group__enc28j60.html#ga5">enc28j60Read</a>(MAADR1));
00483     <a class="code" href="group__rprintf.html#ga7">rprintfu08</a>(<a class="code" href="group__enc28j60.html#ga5">enc28j60Read</a>(MAADR0));
00484     <a class="code" href="group__rprintf.html#ga5">rprintfCRLF</a>();
00485 
00486     <a class="code" href="group__rprintf.html#ga15">rprintfProgStrM</a>(<span class="stringliteral">"Rx   : ERXST  ERXND  ERXWRPT ERXRDPT ERXFCON EPKTCNT MAMXFL\r\n"</span>);
00487     <a class="code" href="group__rprintf.html#ga15">rprintfProgStrM</a>(<span class="stringliteral">"       0x"</span>);
00488     <a class="code" href="group__rprintf.html#ga7">rprintfu08</a>(<a class="code" href="group__enc28j60.html#ga5">enc28j60Read</a>(ERXSTH));
00489     <a class="code" href="group__rprintf.html#ga7">rprintfu08</a>(<a class="code" href="group__enc28j60.html#ga5">enc28j60Read</a>(ERXSTL));
00490     <a class="code" href="group__rprintf.html#ga15">rprintfProgStrM</a>(<span class="stringliteral">" 0x"</span>);
00491     <a class="code" href="group__rprintf.html#ga7">rprintfu08</a>(<a class="code" href="group__enc28j60.html#ga5">enc28j60Read</a>(ERXNDH));
00492     <a class="code" href="group__rprintf.html#ga7">rprintfu08</a>(<a class="code" href="group__enc28j60.html#ga5">enc28j60Read</a>(ERXNDL));
00493     <a class="code" href="group__rprintf.html#ga15">rprintfProgStrM</a>(<span class="stringliteral">"  0x"</span>);
00494     <a class="code" href="group__rprintf.html#ga7">rprintfu08</a>(<a class="code" href="group__enc28j60.html#ga5">enc28j60Read</a>(ERXWRPTH));
00495     <a class="code" href="group__rprintf.html#ga7">rprintfu08</a>(<a class="code" href="group__enc28j60.html#ga5">enc28j60Read</a>(ERXWRPTL));
00496     <a class="code" href="group__rprintf.html#ga15">rprintfProgStrM</a>(<span class="stringliteral">"  0x"</span>);
00497     <a class="code" href="group__rprintf.html#ga7">rprintfu08</a>(<a class="code" href="group__enc28j60.html#ga5">enc28j60Read</a>(ERXRDPTH));
00498     <a class="code" href="group__rprintf.html#ga7">rprintfu08</a>(<a class="code" href="group__enc28j60.html#ga5">enc28j60Read</a>(ERXRDPTL));
00499     <a class="code" href="group__rprintf.html#ga15">rprintfProgStrM</a>(<span class="stringliteral">"   0x"</span>);
00500     <a class="code" href="group__rprintf.html#ga7">rprintfu08</a>(<a class="code" href="group__enc28j60.html#ga5">enc28j60Read</a>(ERXFCON));
00501     <a class="code" href="group__rprintf.html#ga15">rprintfProgStrM</a>(<span class="stringliteral">"    0x"</span>);
00502     <a class="code" href="group__rprintf.html#ga7">rprintfu08</a>(<a class="code" href="group__enc28j60.html#ga5">enc28j60Read</a>(EPKTCNT));
00503     <a class="code" href="group__rprintf.html#ga15">rprintfProgStrM</a>(<span class="stringliteral">"  0x"</span>);
00504     <a class="code" href="group__rprintf.html#ga7">rprintfu08</a>(<a class="code" href="group__enc28j60.html#ga5">enc28j60Read</a>(MAMXFLH));
00505     <a class="code" href="group__rprintf.html#ga7">rprintfu08</a>(<a class="code" href="group__enc28j60.html#ga5">enc28j60Read</a>(MAMXFLL));
00506     <a class="code" href="group__rprintf.html#ga5">rprintfCRLF</a>();
00507 
00508     <a class="code" href="group__rprintf.html#ga15">rprintfProgStrM</a>(<span class="stringliteral">"Tx   : ETXST  ETXND  MACLCON1 MACLCON2 MAPHSUP\r\n"</span>);
00509     <a class="code" href="group__rprintf.html#ga15">rprintfProgStrM</a>(<span class="stringliteral">"       0x"</span>);
00510     <a class="code" href="group__rprintf.html#ga7">rprintfu08</a>(<a class="code" href="group__enc28j60.html#ga5">enc28j60Read</a>(ETXSTH));
00511     <a class="code" href="group__rprintf.html#ga7">rprintfu08</a>(<a class="code" href="group__enc28j60.html#ga5">enc28j60Read</a>(ETXSTL));
00512     <a class="code" href="group__rprintf.html#ga15">rprintfProgStrM</a>(<span class="stringliteral">" 0x"</span>);
00513     <a class="code" href="group__rprintf.html#ga7">rprintfu08</a>(<a class="code" href="group__enc28j60.html#ga5">enc28j60Read</a>(ETXNDH));
00514     <a class="code" href="group__rprintf.html#ga7">rprintfu08</a>(<a class="code" href="group__enc28j60.html#ga5">enc28j60Read</a>(ETXNDL));
00515     <a class="code" href="group__rprintf.html#ga15">rprintfProgStrM</a>(<span class="stringliteral">"   0x"</span>);
00516     <a class="code" href="group__rprintf.html#ga7">rprintfu08</a>(<a class="code" href="group__enc28j60.html#ga5">enc28j60Read</a>(MACLCON1));
00517     <a class="code" href="group__rprintf.html#ga15">rprintfProgStrM</a>(<span class="stringliteral">"     0x"</span>);
00518     <a class="code" href="group__rprintf.html#ga7">rprintfu08</a>(<a class="code" href="group__enc28j60.html#ga5">enc28j60Read</a>(MACLCON2));
00519     <a class="code" href="group__rprintf.html#ga15">rprintfProgStrM</a>(<span class="stringliteral">"     0x"</span>);
00520     <a class="code" href="group__rprintf.html#ga7">rprintfu08</a>(<a class="code" href="group__enc28j60.html#ga5">enc28j60Read</a>(MAPHSUP));
00521     <a class="code" href="group__rprintf.html#ga5">rprintfCRLF</a>();
00522 
00523     delay_ms(25);
00524 }
00525 
00526 
00527 
</pre></div><hr size="1"><address style="align: right;"><small>Generated on Mon Oct 24 16:03:55 2005 for Procyon AVRlib by&nbsp;
<a href="http://www.doxygen.org/index.html">
<img src="doxygen.png" alt="doxygen" align="middle" border="0"></a> 1.4.2 </small></address>
</body>
</html>