enc28j60_8h-source.html

国外牛人公开的ＡＶＲ代码

00222 <span class="preprocessor"></span><span class="comment">// ENC28J60 PHY PHCON2 Register Bit Definitions</span>
00223 <span class="preprocessor">#define PHCON2_FRCLINK  0x4000</span>
00224 <span class="preprocessor"></span><span class="preprocessor">#define PHCON2_TXDIS    0x2000</span>
00225 <span class="preprocessor"></span><span class="preprocessor">#define PHCON2_JABBER   0x0400</span>
00226 <span class="preprocessor"></span><span class="preprocessor">#define PHCON2_HDLDIS   0x0100</span>
00227 <span class="preprocessor"></span>
00228 <span class="comment">// ENC28J60 Packet Control Byte Bit Definitions</span>
00229 <span class="preprocessor">#define PKTCTRL_PHUGEEN     0x08</span>
00230 <span class="preprocessor"></span><span class="preprocessor">#define PKTCTRL_PPADEN      0x04</span>
00231 <span class="preprocessor"></span><span class="preprocessor">#define PKTCTRL_PCRCEN      0x02</span>
00232 <span class="preprocessor"></span><span class="preprocessor">#define PKTCTRL_POVERRIDE   0x01</span>
00233 <span class="preprocessor"></span>
00234 <span class="comment">// SPI operation codes</span>
00235 <span class="preprocessor">#define ENC28J60_READ_CTRL_REG  0x00</span>
00236 <span class="preprocessor"></span><span class="preprocessor">#define ENC28J60_READ_BUF_MEM   0x3A</span>
00237 <span class="preprocessor"></span><span class="preprocessor">#define ENC28J60_WRITE_CTRL_REG 0x40</span>
00238 <span class="preprocessor"></span><span class="preprocessor">#define ENC28J60_WRITE_BUF_MEM  0x7A</span>
00239 <span class="preprocessor"></span><span class="preprocessor">#define ENC28J60_BIT_FIELD_SET  0x80</span>
00240 <span class="preprocessor"></span><span class="preprocessor">#define ENC28J60_BIT_FIELD_CLR  0xA0</span>
00241 <span class="preprocessor"></span><span class="preprocessor">#define ENC28J60_SOFT_RESET     0xFF</span>
00242 <span class="preprocessor"></span>
00243 
00244 <span class="comment">// buffer boundaries applied to internal 8K ram</span>
00245 <span class="comment">//  entire available packet buffer space is allocated</span>
00246 <span class="preprocessor">#define TXSTART_INIT    0x0000  // start TX buffer at 0</span>
00247 <span class="preprocessor"></span><span class="preprocessor">#define RXSTART_INIT    0x0600  // give TX buffer space for one full ethernet frame (~1500 bytes)</span>
00248 <span class="preprocessor"></span><span class="preprocessor">#define RXSTOP_INIT     0x1FFF  // receive buffer gets the rest</span>
00249 <span class="preprocessor"></span>
00250 <span class="preprocessor">#define MAX_FRAMELEN    1518    // maximum ethernet frame length</span>
00251 <span class="preprocessor"></span>
00252 <span class="comment">// Ethernet constants</span>
00253 <span class="preprocessor">#define ETHERNET_MIN_PACKET_LENGTH  0x3C</span>
00254 <span class="preprocessor"></span><span class="comment">//#define ETHERNET_HEADER_LENGTH        0x0E</span>
00255 
00256 <span class="preprocessor">#define ENC28J60_CONTROL_PORT   PORTB</span>
00257 <span class="preprocessor"></span><span class="preprocessor">#define ENC28J60_CONTROL_DDR    DDRB</span>
00258 <span class="preprocessor"></span><span class="preprocessor">#define ENC28J60_CONTROL_CS     0</span>
00259 <span class="preprocessor"></span>
00260 <span class="comment">// MAC address for this interface</span>
00261 <span class="preprocessor">#ifdef ETHADDR0</span>
00262 <span class="preprocessor"></span><span class="preprocessor">#define ENC28J60_MAC0 ETHADDR0</span>
00263 <span class="preprocessor"></span><span class="preprocessor">#define ENC28J60_MAC1 ETHADDR1</span>
00264 <span class="preprocessor"></span><span class="preprocessor">#define ENC28J60_MAC2 ETHADDR2</span>
00265 <span class="preprocessor"></span><span class="preprocessor">#define ENC28J60_MAC3 ETHADDR3</span>
00266 <span class="preprocessor"></span><span class="preprocessor">#define ENC28J60_MAC4 ETHADDR4</span>
00267 <span class="preprocessor"></span><span class="preprocessor">#define ENC28J60_MAC5 ETHADDR5</span>
00268 <span class="preprocessor"></span><span class="preprocessor">#else</span>
00269 <span class="preprocessor"></span><span class="preprocessor">#define ENC28J60_MAC0 '0'</span>
00270 <span class="preprocessor"></span><span class="preprocessor">#define ENC28J60_MAC1 'F'</span>
00271 <span class="preprocessor"></span><span class="preprocessor">#define ENC28J60_MAC2 'F'</span>
00272 <span class="preprocessor"></span><span class="preprocessor">#define ENC28J60_MAC3 'I'</span>
00273 <span class="preprocessor"></span><span class="preprocessor">#define ENC28J60_MAC4 'C'</span>
00274 <span class="preprocessor"></span><span class="preprocessor">#define ENC28J60_MAC5 'E'</span>
00275 <span class="preprocessor"></span><span class="preprocessor">#endif</span>
00276 <span class="preprocessor"></span>
00277 
00278 <span class="comment">// functions</span>
00279 <span class="preprocessor">#include "<a class="code" href="nic_8h.html">nic.h</a>"</span>
00280 
00281 <span class="comment">// setup ports for I/O</span>
00282 <span class="comment">//void ax88796SetupPorts(void);</span>
00283 <span class="comment"></span>
00284 <span class="comment">//! do a ENC28J60 read operation</span>
00285 <span class="comment"></span>u08 <a class="code" href="group__enc28j60.html#ga0">enc28j60ReadOp</a>(u08 <a class="code" href="structnetBootpHeader.html#o0">op</a>, u08 address);<span class="comment"></span>
00286 <span class="comment">//! do a ENC28J60 write operation</span>
00287 <span class="comment"></span><span class="keywordtype">void</span> <a class="code" href="group__enc28j60.html#ga1">enc28j60WriteOp</a>(u08 <a class="code" href="structnetBootpHeader.html#o0">op</a>, u08 address, u08 data);<span class="comment"></span>
00288 <span class="comment">//! read the packet buffer memory</span>
00289 <span class="comment"></span><span class="keywordtype">void</span> <a class="code" href="group__enc28j60.html#ga2">enc28j60ReadBuffer</a>(u16 len, u08* data);<span class="comment"></span>
00290 <span class="comment">//! write the packet buffer memory</span>
00291 <span class="comment"></span><span class="keywordtype">void</span> <a class="code" href="group__enc28j60.html#ga3">enc28j60WriteBuffer</a>(u16 len, u08* data);<span class="comment"></span>
00292 <span class="comment">//! set the register bank for register at address</span>
00293 <span class="comment"></span><span class="keywordtype">void</span> <a class="code" href="group__enc28j60.html#ga4">enc28j60SetBank</a>(u08 address);<span class="comment"></span>
00294 <span class="comment">//! read ax88796 register</span>
00295 <span class="comment"></span>u08 <a class="code" href="group__enc28j60.html#ga5">enc28j60Read</a>(u08 address);<span class="comment"></span>
00296 <span class="comment">//! write ax88796 register</span>
00297 <span class="comment"></span><span class="keywordtype">void</span> <a class="code" href="group__enc28j60.html#ga6">enc28j60Write</a>(u08 address, u08 data);<span class="comment"></span>
00298 <span class="comment">//! read a PHY register</span>
00299 <span class="comment"></span>u16 <a class="code" href="group__enc28j60.html#ga7">enc28j60PhyRead</a>(u08 address);<span class="comment"></span>
00300 <span class="comment">//! write a PHY register</span>
00301 <span class="comment"></span><span class="keywordtype">void</span> <a class="code" href="group__enc28j60.html#ga8">enc28j60PhyWrite</a>(u08 address, u16 data);
00302 <span class="comment"></span>
00303 <span class="comment">//! initialize the ethernet interface for transmit/receive</span>
00304 <span class="comment"></span><span class="keywordtype">void</span> <a class="code" href="group__enc28j60.html#ga9">enc28j60Init</a>(<span class="keywordtype">void</span>);
00305 <span class="comment"></span>
00306 <span class="comment">//! Packet transmit function.</span>
00307 <span class="comment">/// Sends a packet on the network.  It is assumed that the packet is headed by a valid ethernet header.</span>
00308 <span class="comment">/// \param len      Length of packet in bytes.</span>
00309 <span class="comment">/// \param packet   Pointer to packet data.</span>
00310 <span class="comment"></span><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);
00311 <span class="comment"></span>
00312 <span class="comment">//! Packet receive function.</span>
00313 <span class="comment">/// Gets a packet from the network receive buffer, if one is available.</span>
00314 <span class="comment">/// The packet will by headed by an ethernet header.</span>
00315 <span class="comment">/// \param  maxlen  The maximum acceptable length of a retrieved packet.</span>
00316 <span class="comment">/// \param  packet  Pointer where packet data should be stored.</span>
00317 <span class="comment">/// \return Packet length in bytes if a packet was retrieved, zero otherwise.</span>
00318 <span class="comment"></span><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);
00319 <span class="comment"></span>
00320 <span class="comment">//! execute procedure for recovering from a receive overflow</span>
00321 <span class="comment">/// this should be done when the receive memory fills up with packets</span>
00322 <span class="comment"></span><span class="keywordtype">void</span> <a class="code" href="group__enc28j60.html#ga12">enc28j60ReceiveOverflowRecover</a>(<span class="keywordtype">void</span>);
00323 <span class="comment"></span>
00324 <span class="comment">//! formatted print of important ENC28J60 registers</span>
00325 <span class="comment"></span><span class="keywordtype">void</span> <a class="code" href="group__enc28j60.html#ga13">enc28j60RegDump</a>(<span class="keywordtype">void</span>);
00326 
00327 <span class="preprocessor">#endif</span>
00328 <span class="preprocessor"></span><span class="comment">//@}</span>
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