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📁 本例程是描述了通过PIC33FXXX单片机的I2C接口实现对单片机外围EEPROM的访问
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          <td height="25" bgcolor="#E3F2FD"><strong><font color="#000000"><font color="#FFFFFF">&nbsp;&nbsp;</font></font></strong><font color="#0066CC">回复2</font>&nbsp;&nbsp;老外的i2cEmem.c608990</td>
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                <td class="font13"><p style="TEXT-INDENT: 2em">/**********************************************************************</p><p style="TEXT-INDENT: 2em">* ?2005 <a href="http://www.ic37.com/Microchip-p.htm" target="_blank" title="Microchip PDF资料和全国供应商">Microchip</a> <a href="http://www.ic37.com/Technology-p.htm" target="_blank" title="Technology PDF资料和全国供应商">Technology</a> Inc.</p><p style="TEXT-INDENT: 2em">*</p><p style="TEXT-INDENT: 2em">* FileName:i2cEmem.c</p><p style="TEXT-INDENT: 2em">* Dependencies:<a href="http://www.ic37.com/Header-p.htm" target="_blank" title="Header PDF资料和全国供应商">Header</a> (.h) files if applicable, see below</p><p style="TEXT-INDENT: 2em">* Processor:dsPIC33Fxxxx/PIC24Hxxxx</p><p style="TEXT-INDENT: 2em">* Compiler:MPLAB?C30 v3.00 or higher</p><p style="TEXT-INDENT: 2em">* Tested On:dsPIC33FJ256GP710</p><p style="TEXT-INDENT: 2em">*</p><p style="TEXT-INDENT: 2em">* <a href="http://www.ic37.com/SOFTWARE-p.htm" target="_blank" title="SOFTWARE PDF资料和全国供应商">SOFTWARE</a> LICENSE AGREEMENT:</p><p style="TEXT-INDENT: 2em">* <a href="http://www.ic37.com/Microchip-p.htm" target="_blank" title="Microchip PDF资料和全国供应商">Microchip</a> <a href="http://www.ic37.com/Technology-p.htm" target="_blank" title="Technology PDF资料和全国供应商">Technology</a> Incorporated (&quot;<a href="http://www.ic37.com/Microchip-p.htm" target="_blank" title="Microchip PDF资料和全国供应商">Microchip</a>&quot;) retains all ownership and </p><p style="TEXT-INDENT: 2em">* intellectual property rights in the code accompanying this message and in all </p><p style="TEXT-INDENT: 2em">* derivatives hereto.You may use this code, and any derivatives created by </p><p style="TEXT-INDENT: 2em">* any person or entity by or on your behalf, exclusively with <a href="http://www.ic37.com/Microchip-p.htm" target="_blank" title="Microchip PDF资料和全国供应商">Microchip</a>'s</p><p style="TEXT-INDENT: 2em">* proprietary products.Your acceptance and/or use of this code constitutes </p><p style="TEXT-INDENT: 2em">* agreement to the terms and conditions of this notice.</p><p style="TEXT-INDENT: 2em">*</p><p style="TEXT-INDENT: 2em">* CODE ACCOMPANYING THIS MESSAGE IS SUPPLIED BY <a href="http://www.ic37.com/MICROCHIP-p.htm" target="_blank" title="MICROCHIP PDF资料和全国供应商">MICROCHIP</a> &quot;AS IS&quot;.NO </p><p style="TEXT-INDENT: 2em">* WARRANTIES, WHETHER EXPRESS, IMPLIED OR STATUTORY, INCLUDING, BUT NOT LIMITED </p><p style="TEXT-INDENT: 2em">* TO, IMPLIED WARRANTIES OF NON-INFRINGEMENT, MERCHANTABILITY AND FITNESS FOR A </p><p style="TEXT-INDENT: 2em">* PARTICULAR PURPOSE APPLY TO THIS CODE, ITS INTERACTION WITH <a href="http://www.ic37.com/MICROCHIP-p.htm" target="_blank" title="MICROCHIP PDF资料和全国供应商">MICROCHIP</a>'S </p><p style="TEXT-INDENT: 2em">* <a href="http://www.ic37.com/PRODUCTS-p.htm" target="_blank" title="PRODUCTS PDF资料和全国供应商">PRODUCTS</a>, COMBINATION WITH ANY OTHER <a href="http://www.ic37.com/PRODUCTS-p.htm" target="_blank" title="PRODUCTS PDF资料和全国供应商">PRODUCTS</a>, OR USE IN ANY APPLICATION. </p><p style="TEXT-INDENT: 2em">*</p><p style="TEXT-INDENT: 2em">* YOU ACKNOWLEDGE AND AGREE THAT, IN NO EVENT, SHALL <a href="http://www.ic37.com/MICROCHIP-p.htm" target="_blank" title="MICROCHIP PDF资料和全国供应商">MICROCHIP</a> BE LIABLE, WHETHER </p><p style="TEXT-INDENT: 2em">* IN CONTRACT, WARRANTY, TORT (INCLUDING NEGLIGENCE OR BREACH OF STATUTORY DUTY), </p><p style="TEXT-INDENT: 2em">* STRICT LIABILITY, INDEMNITY, CONTRIBUTION, OR OTHERWISE, FOR ANY INDIRECT, <a href="http://www.ic37.com/SPECIAL-p.htm" target="_blank" title="SPECIAL PDF资料和全国供应商">SPECIAL</a>, </p><p style="TEXT-INDENT: 2em">* PUNITIVE, EXEMPLARY, INCIDENTAL OR CONSEQUENTIAL LOSS, DAMAGE, FOR COST OR EXPENSE OF </p><p style="TEXT-INDENT: 2em">* ANY KIND WHATSOEVER RELATED TO THE CODE, HOWSOEVER CAUSED, EVEN IF <a href="http://www.ic37.com/MICROCHIP-p.htm" target="_blank" title="MICROCHIP PDF资料和全国供应商">MICROCHIP</a> HAS BEEN </p><p style="TEXT-INDENT: 2em">* ADVISED OF THE POSSIBILITY OR THE DAMAGES ARE FORESEEABLE.TO THE FULLEST EXTENT </p><p style="TEXT-INDENT: 2em">* ALLOWABLE BY LAW, <a href="http://www.ic37.com/MICROCHIP-p.htm" target="_blank" title="MICROCHIP PDF资料和全国供应商">MICROCHIP</a>'S TOTAL LIABILITY ON ALL CLAIMS IN ANY WAY RELATED TO </p><p style="TEXT-INDENT: 2em">* THIS CODE, SHALL NOT EXCEED THE PRICE YOU PAID DIRECTLY TO <a href="http://www.ic37.com/MICROCHIP-p.htm" target="_blank" title="MICROCHIP PDF资料和全国供应商">MICROCHIP</a> SPECIFICALLY TO </p><p style="TEXT-INDENT: 2em">* HAVE THIS CODE DEVELOPED.</p><p style="TEXT-INDENT: 2em">*</p><p style="TEXT-INDENT: 2em">* You agree that you are solely responsible for <a href="http://www.ic37.com/testing-p.htm" target="_blank" title="testing PDF资料和全国供应商">testing</a> the code and </p><p style="TEXT-INDENT: 2em">* determining its suitability.<a href="http://www.ic37.com/Microchip-p.htm" target="_blank" title="Microchip PDF资料和全国供应商">Microchip</a> has no obligation to modify, test, </p><p style="TEXT-INDENT: 2em">* certify, or <a href="http://www.ic37.com/support-p.htm" target="_blank" title="support PDF资料和全国供应商">support</a> the code.</p><p style="TEXT-INDENT: 2em">*</p><p style="TEXT-INDENT: 2em">* REVISION HISTORY:</p><p style="TEXT-INDENT: 2em">*~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~</p><p style="TEXT-INDENT: 2em">* AuthorDateComments on this revision</p><p style="TEXT-INDENT: 2em">*~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~</p><p style="TEXT-INDENT: 2em">* Settu D.07/09/06First release of source file</p><p style="TEXT-INDENT: 2em">*</p><p style="TEXT-INDENT: 2em">**********************************************************************/</p><p style="TEXT-INDENT: 2em">#if defined(__dsPIC33F__)</p><p style="TEXT-INDENT: 2em">#include &quot;p33Fxxxx.h&quot;</p><p style="TEXT-INDENT: 2em">#elif defined(__PIC24H__)</p><p style="TEXT-INDENT: 2em">#include &quot;p24Hxxxx.h&quot;</p><p style="TEXT-INDENT: 2em">#endif</p><p style="TEXT-INDENT: 2em">#include &quot;i2cEmem.h&quot;</p><p style="TEXT-INDENT: 2em">unsigned int jDone;</p><p style="TEXT-INDENT: 2em">/*=============================================================================</p><p style="TEXT-INDENT: 2em">I2C <a href="http://www.ic37.com/Master-p.htm" target="_blank" title="Master PDF资料和全国供应商">Master</a> Interrupt <a href="http://www.ic37.com/Service-p.htm" target="_blank" title="Service PDF资料和全国供应商">Service</a> Routine</p><p style="TEXT-INDENT: 2em">=============================================================================*/</p><p style="TEXT-INDENT: 2em">void __attribute__((interrupt, no_auto_psv)) _MI2C1Interrupt(void)</p><p style="TEXT-INDENT: 2em">{</p><p style="TEXT-INDENT: 2em">jDone=1;</p><p style="TEXT-INDENT: 2em">IFS1bits.MI2C1IF = 0;//Clear the DMA0 Interrupt Flag;</p><p style="TEXT-INDENT: 2em">}</p><p style="TEXT-INDENT: 2em">/*=============================================================================</p><p style="TEXT-INDENT: 2em">I2C Slave Interrupt <a href="http://www.ic37.com/Service-p.htm" target="_blank" title="Service PDF资料和全国供应商">Service</a> Routine</p><p style="TEXT-INDENT: 2em">=============================================================================*/</p><p style="TEXT-INDENT: 2em">void __attribute__((interrupt, no_auto_psv)) _SI2C1Interrupt(void)</p><p style="TEXT-INDENT: 2em">{</p><p style="TEXT-INDENT: 2em">IFS1bits.SI2C1IF = 0;//Clear the DMA0 Interrupt Flag</p><p style="TEXT-INDENT: 2em">}</p><p style="TEXT-INDENT: 2em">/*=============================================================================</p><p style="TEXT-INDENT: 2em">I2C Peripheral Initialisation</p><p style="TEXT-INDENT: 2em">=============================================================================*/</p><p style="TEXT-INDENT: 2em">void I2CEMEMinit(I2CEMEM_DRV *i2cMem)</p><p style="TEXT-INDENT: 2em">{</p><p style="TEXT-INDENT: 2em">i2cMem-&gt;cmd=0;</p><p style="TEXT-INDENT: 2em">i2cMem-&gt;oData=0;</p><p style="TEXT-INDENT: 2em">// Configre SCA/SDA pin as open-drain</p><p style="TEXT-INDENT: 2em">ODCGbits.ODCG2=1;</p><p style="TEXT-INDENT: 2em">ODCGbits.ODCG3=1;</p><p style="TEXT-INDENT: 2em">I2C1CONbits.A10M=0;</p><p style="TEXT-INDENT: 2em">I2C1CONbits.SCLREL=1;</p><p style="TEXT-INDENT: 2em">I2C1BRG=300;</p><p style="TEXT-INDENT: 2em">I2C1ADD=0;</p><p style="TEXT-INDENT: 2em">I2C1MSK=0;</p><p style="TEXT-INDENT: 2em">I2C1CONbits.I2CEN=1;</p><p style="TEXT-INDENT: 2em">IEC1bits.MI2C1IE = 1;</p><p style="TEXT-INDENT: 2em">IFS1bits.MI2C1IF = 0;</p><p style="TEXT-INDENT: 2em">}</p><p style="TEXT-INDENT: 2em">/*=============================================================================</p><p style="TEXT-INDENT: 2em">I2C Serial <a href="http://www.ic37.com/EEPROM-p.htm" target="_blank" title="EEPROM PDF资料和全国供应商">EEPROM</a>, STATE-MACHINE BASED DRIVER</p><p style="TEXT-INDENT: 2em">=============================================================================*/</p><p style="TEXT-INDENT: 2em">void I2CEMEMdrv(I2CEMEM_DRV *i2cMem)</p><p style="TEXT-INDENT: 2em">{</p><p style="TEXT-INDENT: 2em">static int state=0, cntr=0, rtrycntr=0;</p><p style="TEXT-INDENT: 2em"><a href="http://www.ic37.com/switch-p.htm" target="_blank" title="switch PDF资料和全国供应商">switch</a>(state)</p><p style="TEXT-INDENT: 2em">{</p><p style="TEXT-INDENT: 2em">case 0: </p><p style="TEXT-INDENT: 2em">if( (i2cMem-&gt;cmd == I2C_WRITE)|| (i2cMem-&gt;cmd == I2C_READ)) </p><p style="TEXT-INDENT: 2em">state=1;</p><p style="TEXT-INDENT: 2em">break;</p><p style="TEXT-INDENT: 2em">/*==================================*/</p><p style="TEXT-INDENT: 2em">/* Control/Address Phase*/</p><p style="TEXT-INDENT: 2em">/*==================================*/</p><p style="TEXT-INDENT: 2em">case 1:</p><p style="TEXT-INDENT: 2em">// Start Condition</p><p style="TEXT-INDENT: 2em">I2C1CONbits.SEN=1;</p><p style="TEXT-INDENT: 2em">state=state+1;</p><p style="TEXT-INDENT: 2em">break;</p><p style="TEXT-INDENT: 2em">case 2:</p><p style="TEXT-INDENT: 2em">// Start Byte with <a href="http://www.ic37.com/device-p.htm" target="_blank" title="device PDF资料和全国供应商">device</a> <a href="http://www.ic37.com/select-p.htm" target="_blank" title="select PDF资料和全国供应商">select</a> id</p><p style="TEXT-INDENT: 2em">if(jDone==1){ </p><p style="TEXT-INDENT: 2em">jDone=0;</p><p style="TEXT-INDENT: 2em">state=state+1;</p><p style="TEXT-INDENT: 2em">I2C1TRN=(0x00A0)|(((i2cMem-&gt;oData-&gt;csel)&amp;0x7)&lt;&lt;1);</p><p style="TEXT-INDENT: 2em">}</p><p style="TEXT-INDENT: 2em">break;</p><p style="TEXT-INDENT: 2em">case 3:</p><p style="TEXT-INDENT: 2em">// Send address byte 1, if ack is received. Else Retry</p><p style="TEXT-INDENT: 2em">if(jDone==1){ </p><p style="TEXT-INDENT: 2em">jDone=0;</p><p style="TEXT-INDENT: 2em">if(I2C1STATbits.ACKSTAT==1) {// Ack Not received, Retry</p><p style="TEXT-INDENT: 2em">if(rtrycntr &lt; MAX_RETRY)</p><p style="TEXT-INDENT: 2em">state=18;</p><p style="TEXT-INDENT: 2em">else</p><p style="TEXT-INDENT: 2em">state=16;// Flag error and exit</p><p style="TEXT-INDENT: 2em">} else {</p><p style="TEXT-INDENT: 2em"> </p><p style="TEXT-INDENT: 2em">rtrycntr=0;</p><p style="TEXT-INDENT: 2em">#if ADDRWIDTH==TWO_BYTE</p><p style="TEXT-INDENT: 2em">I2C1TRN=((i2cMem-&gt;oData-&gt;addr)&amp;0xFF00)&gt;&gt;8;</p><p style="TEXT-INDENT: 2em">state=state+1;</p><p style="TEXT-INDENT: 2em">#endif</p><p style="TEXT-INDENT: 2em">#if ADDRWIDTH==ONE_BYTE</p><p style="TEXT-INDENT: 2em">I2C1TRN=((i2cMem-&gt;oData-&gt;addr));</p><p style="TEXT-INDENT: 2em">state=state+2;</p><p style="TEXT-INDENT: 2em">#endif</p><p style="TEXT-INDENT: 2em">}</p><p style="TEXT-INDENT: 2em">}</p><p style="TEXT-INDENT: 2em">break;</p><p style="TEXT-INDENT: 2em">case 4:</p><p style="TEXT-INDENT: 2em">// Send address byte 2, if ack is received. Else Flag error and exit</p><p style="TEXT-INDENT: 2em">if(jDone==1){ </p><p style="TEXT-INDENT: 2em">jDone=0;</p><p style="TEXT-INDENT: 2em">if(I2C1STATbits.ACKSTAT==1) {// Ack Not received, Flag error and exit</p><p style="TEXT-INDENT: 2em">state=16;</p><p style="TEXT-INDENT: 2em">} else {</p><p style="TEXT-INDENT: 2em">#if ADDRWIDTH==TWO_BYTE</p><p style="TEXT-INDENT: 2em">I2C1TRN=((i2cMem-&gt;oData-&gt;addr)&amp;0x00FF);</p><p style="TEXT-INDENT: 2em">#endif</p><p style="TEXT-INDENT: 2em">state=state+1;</p><p style="TEXT-INDENT: 2em">}</p><p style="TEXT-INDENT: 2em">}</p><p style="TEXT-INDENT: 2em">break;</p><p style="TEXT-INDENT: 2em">case 5:</p><p style="TEXT-INDENT: 2em">// Read or Write</p><p style="TEXT-INDENT: 2em">if(jDone==1){ </p><p style="TEXT-INDENT: 2em">jDone=0;</p><p style="TEXT-INDENT: 2em">if(I2C1STATbits.ACKSTAT==1) {// Ack Not received, Flag error and exit</p><p style="TEXT-INDENT: 2em">state=16;</p><p style="TEXT-INDENT: 2em">} else {</p><p style="TEXT-INDENT: 2em">if(i2cMem-&gt;cmd == I2C_WRITE) </p><p style="TEXT-INDENT: 2em">state=state+1;</p><p style="TEXT-INDENT: 2em"> </p><p style="TEXT-INDENT: 2em">if(i2cMem-&gt;cmd == I2C_READ) </p><p style="TEXT-INDENT: 2em">state=8;</p><p style="TEXT-INDENT: 2em">}</p><p style="TEXT-INDENT: 2em">}</p><p style="TEXT-INDENT: 2em">break;</p><p style="TEXT-INDENT: 2em">/*==================================*/</p><p style="TEXT-INDENT: 2em">/* Write Data Phase*/</p><p style="TEXT-INDENT: 2em">/*==================================*/</p><p style="TEXT-INDENT: 2em">case 6:</p><p style="TEXT-INDENT: 2em">// Send data</p><p style="TEXT-INDENT: 2em">I2C1TRN=*(i2cMem-&gt;oData-&gt;buff + cntr); </p><p style="TEXT-INDENT: 2em">state=state+1;</p><p style="TEXT-INDENT: 2em">cntr=cntr+1;</p><p style="TEXT-INDENT: 2em">break;</p><p style="TEXT-INDENT: 2em">case 7:</p><p style="TEXT-INDENT: 2em">// Look for end of data or no Ack</p><p style="TEXT-INDENT: 2em">if(jDone==1){ </p><p style="TEXT-INDENT: 2em">jDone=0;</p><p style="TEXT-INDENT: 2em">state=state-1;</p><p style="TEXT-INDENT: 2em">if(I2C1STATbits.ACKSTAT==1) {// Ack Not received, Flag error and exit</p><p style="TEXT-INDENT: 2em">state=16;</p><p style="TEXT-INDENT: 2em">} else {</p><p style="TEXT-INDENT: 2em">if(cntr== i2cMem-&gt;oData-&gt;n) </p><p style="TEXT-INDENT: 2em">state=14;// Close the Frame</p><p style="TEXT-INDENT: 2em">}</p><p style="TEXT-INDENT: 2em">}</p><p style="TEXT-INDENT: 2em">break;</p><p style="TEXT-INDENT: 2em">/*==================================*/</p><p style="TEXT-INDENT: 2em">/* Read Data Phase*/</p><p style="TEXT-INDENT: 2em">/*==================================*/</p><p style="TEXT-INDENT: 2em">case 8:</p><p style="TEXT-INDENT: 2em">// Repeat Start</p><p style="TEXT-INDENT: 2em">I2C1CONbits.RSEN=1;</p><p style="TEXT-INDENT: 2em">state=state+1;</p><p style="TEXT-INDENT: 2em">break;</p><p style="TEXT-INDENT: 2em">case 9:</p><p style="TEXT-INDENT: 2em">// Re-send <a href="http://www.ic37.com/control-p.htm" target="_blank" title="control PDF资料和全国供应商">control</a> byte with W/R=R</p><p style="TEXT-INDENT: 2em">if(jDone==1){ </p><p style="TEXT-INDENT: 2em">jDone=0;</p><p style="TEXT-INDENT: 2em">state=state+1;</p><p style="TEXT-INDENT: 2em">I2C1TRN=(0x00A1)|(((i2cMem-&gt;oData-&gt;csel)&amp;0x7)&lt;&lt;1);</p><p style="TEXT-INDENT: 2em">}</p><p style="TEXT-INDENT: 2em">break;</p><p style="TEXT-INDENT: 2em">case 10:</p><p style="TEXT-INDENT: 2em">// Check, if <a href="http://www.ic37.com/control-p.htm" target="_blank" title="control PDF资料和全国供应商">control</a> byte went ok</p><p style="TEXT-INDENT: 2em">if(jDone==1){ </p><p style="TEXT-INDENT: 2em">jDone=0;</p><p style="TEXT-INDENT: 2em">state=state+1;</p><p style="TEXT-INDENT: 2em">if(I2C1STATbits.ACKSTAT==1)// Ack Not received, Flag error and exit</p><p style="TEXT-INDENT: 2em">state=16;</p><p style="TEXT-INDENT: 2em">}</p><p style="TEXT-INDENT: 2em">break;</p><p style="TEXT-INDENT: 2em">case 11:</p><p style="TEXT-INDENT: 2em">// Receive Enable </p><p style="TEXT-INDENT: 2em">I2C1CONbits.RCEN=1;</p><p style="TEXT-INDENT: 2em">state++;</p><p style="TEXT-INDENT: 2em">break;</p><p style="TEXT-INDENT: 2em">case 12:</p><p style="TEXT-INDENT: 2em">// Receive data</p><p style="TEXT-INDENT: 2em">if(jDone==1){ </p><p style="TEXT-INDENT: 2em">jDone=0;</p><p style="TEXT-INDENT: 2em">state=state+1;</p><p style="TEXT-INDENT: 2em">*(i2cMem-&gt;oData-&gt;buff+cntr)=I2C1RCV;</p><p style="TEXT-INDENT: 2em">cntr++;</p><p style="TEXT-INDENT: 2em">if(cntr== i2cMem-&gt;oData-&gt;n) {</p><p style="TEXT-INDENT: 2em">I2C1CONbits.ACKDT=1;// No ACK</p><p style="TEXT-INDENT: 2em">} else {</p><p style="TEXT-INDENT: 2em">I2C1CONbits.ACKDT=0;// ACK</p><p style="TEXT-INDENT: 2em">}</p><p style="TEXT-INDENT: 2em">I2C1CONbits.ACKEN=1;</p><p style="TEXT-INDENT: 2em">}</p><p style="TEXT-INDENT: 2em">break;</p><p style="TEXT-INDENT: 2em">case 13: </p><p style="TEXT-INDENT: 2em">if(jDone==1){ </p><p style="TEXT-INDENT: 2em">jDone=0;</p><p style="TEXT-INDENT: 2em">if(cntr== i2cMem-&gt;oData-&gt;n) </p><p style="TEXT-INDENT: 2em">state=state+1;</p><p style="TEXT-INDENT: 2em">else</p><p style="TEXT-INDENT: 2em">state=state-2;</p><p style="TEXT-INDENT: 2em">}</p><p style="TEXT-INDENT: 2em">break;</p><p style="TEXT-INDENT: 2em">/*==================================*/</p><p style="TEXT-INDENT: 2em">/* Stop Sequence*/</p><p style="TEXT-INDENT: 2em">/*==================================*/</p><p style="TEXT-INDENT: 2em">case 14: </p><p style="TEXT-INDENT: 2em">I2C1CONbits.PEN=1;</p><p style="TEXT-INDENT: 2em">state++;</p><p style="TEXT-INDENT: 2em">break;</p><p style="TEXT-INDENT: 2em">case 15: </p><p style="TEXT-INDENT: 2em">if(jDone==1){ </p><p style="TEXT-INDENT: 2em">jDone=0;</p><p style="TEXT-INDENT: 2em">state=0;</p><p style="TEXT-INDENT: 2em">cntr=0;</p><p style="TEXT-INDENT: 2em">i2cMem-&gt;cmd=0;</p><p style="TEXT-INDENT: 2em">}</p><p style="TEXT-INDENT: 2em">break;</p><p style="TEXT-INDENT: 2em">/*==================================*/</p><p style="TEXT-INDENT: 2em">/* Set Error*/</p><p style="TEXT-INDENT: 2em">/*==================================*/</p><p style="TEXT-INDENT: 2em">case 16:</p><p style="TEXT-INDENT: 2em">I2C1CONbits.PEN=1;</p><p style="TEXT-INDENT: 2em">state++;</p><p style="TEXT-INDENT: 2em">break;</p><p style="TEXT-INDENT: 2em">case 17:</p><p style="TEXT-INDENT: 2em">if(jDone==1){ </p><p style="TEXT-INDENT: 2em">jDone=0;</p><p style="TEXT-INDENT: 2em">state=0;</p><p style="TEXT-INDENT: 2em">rtrycntr=0;</p><p style="TEXT-INDENT: 2em">cntr=0;</p><p style="TEXT-INDENT: 2em">i2cMem-&gt;cmd=0xFFFF;</p><p style="TEXT-INDENT: 2em">}</p><p style="TEXT-INDENT: 2em">break;</p><p style="TEXT-INDENT: 2em">/*==================================*/</p><p style="TEXT-INDENT: 2em">/* Retry*/</p><p style="TEXT-INDENT: 2em">/*==================================*/</p><p style="TEXT-INDENT: 2em">case 18:</p><p style="TEXT-INDENT: 2em">I2C1CONbits.PEN=1;</p><p style="TEXT-INDENT: 2em">state++;</p><p style="TEXT-INDENT: 2em">rtrycntr++;</p><p style="TEXT-INDENT: 2em">break;</p><p style="TEXT-INDENT: 2em">case 19:</p><p style="TEXT-INDENT: 2em">if(jDone==1){ </p><p style="TEXT-INDENT: 2em">jDone=0;</p><p style="TEXT-INDENT: 2em">state=0;</p><p style="TEXT-INDENT: 2em">cntr=0;</p><p style="TEXT-INDENT: 2em">}</p><p style="TEXT-INDENT: 2em">break;</p><p style="TEXT-INDENT: 2em">}</p><p style="TEXT-INDENT: 2em">}</p><p style="TEXT-INDENT: 2em"> <font color="#0066CC"><br>
                  <font color="#999999">作者：hotpower&nbsp;&nbsp;2007-12-26 19:18:00</font></font></td>
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          <td height="25" bgcolor="#E3F2FD"><strong><font color="#000000"><font color="#FFFFFF">&nbsp;&nbsp;</font></font></strong><font color="#0066CC">回复3</font>&nbsp;&nbsp;穿个裤衩把~~608991</td>
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                <td class="font13"><p style="TEXT-INDENT: 2em">穿个裤衩把~~ <font color="#0066CC"><br>
                  <font color="#999999">作者：yewuyi&nbsp;&nbsp;2007-12-26 21:39:00</font></font></td>
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          <td height="25" bgcolor="#E3F2FD"><strong><font color="#000000"><font color="#FFFFFF">&nbsp;&nbsp;</font></font></strong><font color="#0066CC">回复4</font>&nbsp;&nbsp;好文608992</td>
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          <td height="38" bgcolor="#FFFFFF"><table width="100%" border="0" align="center" cellpadding="10" cellspacing="0" class="heigh22">
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                <td class="font13"><p style="TEXT-INDENT: 2em">好文 <font color="#0066CC"><br>
                  <font color="#999999">作者：兰天白云&nbsp;&nbsp;2007-12-27 8:13:00</font></font></td>
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          <td height="25" bgcolor="#E3F2FD"><strong><font color="#000000"><font color="#FFFFFF">&nbsp;&nbsp;</font></font></strong><font color="#0066CC">回复5</font>&nbsp;&nbsp;不错608993</td>
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          <td height="38" bgcolor="#FFFFFF"><table width="100%" border="0" align="center" cellpadding="10" cellspacing="0" class="heigh22">
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                <td class="font13"><p style="TEXT-INDENT: 2em">谢谢分享</p><p style="TEXT-INDENT: 2em"> <font color="#0066CC"><br>
                  <font color="#999999">作者：韦广远&nbsp;&nbsp;2007-12-27 11:30:00</font></font></td>
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