Microchip PIC14

<body topmargin=0 leftmargin=0 marginheight=0 marginwidth=0> <table cellpadding=0 cellspacing=0 border=0 height="100%"><tr> <td valign="top" width=155 BGCOLOR="#FFFFFF" TEXT="#080000" bgproperties="fixed" background="1f364643.gif"> <div> <A HREF="index.htm" TARGET="_top" TITLE="GenerExe Home of XPad crosscompiler tool"><U><B><IMG SRC="22b99940.gif" border=0 width="153" height="148" ALT="GenerExe Home Page" ALIGN="BOTTOM" HSPACE="0" VSPACE="0"></B></U></A></div> <bR> <DIV ALIGN="LEFT"></DIV> <div> <B> <TABLE BORDER="5" CELLPADDING="1" CELLSPACING="1" WIDTH="102" BORDERCOLORLIGHT="#C0C0C0" BORDERCOLORDARK="#808080" FRAME="BOX" RULES="ALL" ALIGN="BOTTOM" HSPACE="0" VSPACE="0" BGCOLOR=#FFFFCC > <tR> <tD VALIGN=TOP HEIGHT= 16 ><NOBR><div> <B>About XPad</B></div> </NOBR></tD> </tR> <tR> <tD VALIGN=TOP HEIGHT= 129 WIDTH="86"><div> <B>Microchip PIC14</B></div> <div> <A HREF="id95.htm" TARGET="_top" TITLE="68HC11"><U>68HC11</U></A></div> <div> <A HREF="id128.htm" TARGET="_top" TITLE="MCS51/AT89CX051"><U>MCS51/AT89CX051</U></A></div> <div> <A HREF="id94.htm" TARGET="_top" TITLE="PalmOS"><U>PalmOS</U></A></div> <div> <A HREF="id96.htm" TARGET="_top" TITLE="Java"><U>Java</U></A></div> </tD> </tR> </TABLE></B></div> <div> <B><IMG SRC="27d64640.jpg" border=0 width="100" height="100" ALIGN="BOTTOM" HSPACE="0" VSPACE="0"></B></div> <div> <I>This target includes: 16F84, 16F628, 16C715, 16F877/876, 12F675. </I></div> <div> <I>Add more yourself!!</I><B> </B></div> </td> <td valign="top" BGCOLOR="#FFFFFF" TEXT="#080000" bgproperties="fixed" background="1ef64643.gif"> <bR> <div> <TABLE BORDER="2" CELLPADDING="2" CELLSPACING="1" WIDTH="666" BORDERCOLORLIGHT="#C0C0C0" BORDERCOLORDARK="#808080" FRAME="BOX" RULES="ALL" ALIGN="BOTTOM" HSPACE="0" VSPACE="0" BGCOLOR=#FFFF80 > <tR> <tD VALIGN=TOP HEIGHT= 27 ><NOBR> <SCRIPT language=JavaScript src="menusrc.js"></SCRIPT><SCRIPT language=JavaScript src="menudef.js"></SCRIPT> <SCRIPT language=JavaScript>drawToolbar();</SCRIPT> </NOBR></tD> </tR> </TABLE></div> <script language=javascript src="http://ss.webring.com/navbar?f=j;y=mygenerexe;u=10026283"> </script><noscript><center><table bgcolor=gray cellspacing=0 border=2 bordercolor=red><tr><td><table cellpadding=2 cellspacing=0 border=0><tr><td align=center> <font face=arial size=-1>This site is a member of WebRing. <br>To browse visit <a href="http://ss.webring.com/navbar?f=l;y=mygenerexe;u=10026283"> Here</a>.</font></td></tr></table></td></tr></table></center></noscript> <DIV ALIGN="LEFT"></DIV> <div> <B> <TABLE BORDER="5" CELLPADDING="1" CELLSPACING="1" WIDTH="639" BORDERCOLORLIGHT="#C0C0C0" BORDERCOLORDARK="#808080" FRAME="BOX" RULES="NONE" ALIGN="BOTTOM" HSPACE="0" VSPACE="0" > <tR> <tD VALIGN=TOP COLSPAN=2 HEIGHT= 33 WIDTH="621"><div> <FONT SIZE="3" COLOR="#000000" FACE="Arial" > <A NAME="the_pic_16f84_target_includes_1"><IMG BORDER="0" SRC="1x1.gif" HEIGHT="1" ALIGN="bottom" WIDTH="1" HSPACE="0" VSPACE="0" ></A></FONT><I><B>The PIC Midrange-14Core Target for </B></I><A HREF="id27.htm" TARGET="_top" TITLE="XPad Products"><U><I><B>XPad</B></I></U></A><I><B> includes:</B></I></div> <bR> </tD> </tR> <tR> <tD VALIGN=TOP COLSPAN=2 HEIGHT= 825 ><NOBR><div> Supports 14core midrange devices, such as <B>PIC16F84</B>, <B>PIC12F675,</B> <B>PIC16F628, PIC16F877</B></div> <div> Hardware<B> </B><A HREF="#the_screenshot_below_shows_the" TITLE="Microchip PIC14"><U><B>configuration editor</B></U></A>: specify how you want to use the pins of your PIC-device</div> <div> (customizable to match the PIC14core midrange device of your choice)</div> <div> Low level control of PIC-registers</div> <div> Low level IO library (discretes)</div> <div> Serial <B>RS232 </B>library</div> <div> <B>I2C </B>library</div> <div> <B>1-wire</B> (Dallas) library</div> <div> <B>LCD</B>-control library (6 pin interface; 4bit databus)</div> <div> <B>Timer </B>library</div> <div> Functional <B>simulator </B>allowing you to monitor and control all IO-pins</div> <div> Inline assembly</div> <div> Easy to <B>add built-in libraries</B> yourself!</div> <div> Easy use of EEPROM (persistent variables)</div> <div> Optimizing <B>compiler </B>generating fully commented assembly</div> <div> Custom <B>multi-tasking executive </B>for PIC to drive STDs with small memory-footprint</div> <bR> <div> Now includes assembly-libraries for:</div> <div> U(S)ART on PIC16F628 and PIC16F877</div> <div> PWM on PIC16F628 and PIC16F877</div> <div> ADC on PIC12F675, PIC16C715 and PIC16F877</div> <bR> <bR> <div> <IMG SRC="1a82ea70.jpg" border=0 width="558" height="423" ALIGN="BOTTOM" HSPACE="0" VSPACE="0"></div> </NOBR></tD> </tR> <tR> <tD VALIGN=TOP COLSPAN=2 HEIGHT= 522 WIDTH="621"><div>  <A NAME="why_the_pic_16f84_"><IMG BORDER="0" SRC="1x1.gif" HEIGHT="1" ALIGN="bottom" WIDTH="1" HSPACE="0" VSPACE="0" ></A><FONT SIZE="3" COLOR="#0000FF" FACE="Arial" ><B>Why a midrange device, like the PIC 16F84, 16F628, 16F877 or 12F675?</B></FONT></div> <bR> <div> <FONT SIZE="2" COLOR="#0000FF" FACE="Arial" ><B>T</B></FONT>he PIC 16F84 or the newer 16F628 is an 18 pin, 8 bit microcontroller which requires a minimum of external components to operate. The PIC has a risc-architecture performing at 1 instuction per 4 cycles for all but branch-instructions and requires almost no external components. Most of its external pins are available for interaction with the outside world and some versions have several kbytes of program-space as well as over 100 bytes of ram. Also included are timers and interrupt-capability. The PIC is ideal for fast "close-to-the-action" tasks, making it almost ridiculous to ever use traditional logic ICs again! Because some versions have EEPROM memory to store program-code and allow for serial in-circuit programming it has become very popular in many hobby/prototype/robotic environments. When you <A HREF="id32_1.htm" TARGET="_top" TITLE="Links"><U>surf the web</U></A>, it is amazing what some people have accomplished with these tiny race-horses! </div> <bR> <div> <B>S</B><FONT SIZE="2" COLOR="#000000" FACE="Arial" >ome features of the PIC16F84 are:</FONT></div> <div> <IMG BORDER="0" SRC="Symb075c00b700c800000000.gif" HEIGHT="13" WIDTH="24" ALIGN="bottom" HSPACE="0" VSPACE="0">operates from 2-6V DC</div> <div> <IMG BORDER="0" SRC="Symb075c00b700c800000000.gif" HEIGHT="13" WIDTH="24" ALIGN="bottom" HSPACE="0" VSPACE="0">clock from 0 to 10mHz</div> <div> <IMG BORDER="0" SRC="Symb075c00b700c800000000.gif" HEIGHT="13" WIDTH="24" ALIGN="bottom" HSPACE="0" VSPACE="0">68 bytes ram</div> <div> <IMG BORDER="0" SRC="Symb075c00b700c800000000.gif" HEIGHT="13" WIDTH="24" ALIGN="bottom" HSPACE="0" VSPACE="0">64 bytes data EEPROM (non-volatile data)</div> <div> <IMG BORDER="0" SRC="Symb075c00b700c800000000.gif" HEIGHT="13" WIDTH="24" ALIGN="bottom" HSPACE="0" VSPACE="0">1024 program-instructions serial EEPROM programmable</div> <div> <IMG BORDER="0" SRC="Symb075c00b700c800000000.gif" HEIGHT="13" WIDTH="24" ALIGN="bottom" HSPACE="0" VSPACE="0">only 35 instructions to learn, most of which are 1 cycle (4 clock-cycles).</div> <div> <IMG BORDER="0" SRC="Symb075c00b700c800000000.gif" HEIGHT="13" WIDTH="24" ALIGN="bottom" HSPACE="0" VSPACE="0">13 I/O pins programmable in software, of which:</div> <div> <IMG BORDER="0" SRC="Symb075c00b700c800000000.gif" HEIGHT="13" WIDTH="24" ALIGN="bottom" HSPACE="0" VSPACE="0">4 external pins can interrupt on change</div> <div> <IMG BORDER="0" SRC="Symb075c00b700c800000000.gif" HEIGHT="13" WIDTH="24" ALIGN="bottom" HSPACE="0" VSPACE="0">1 external pin can interrupt on a selectable edge</div> <div> <IMG BORDER="0" SRC="Symb075c00b700c800000000.gif" HEIGHT="13" WIDTH="24" ALIGN="bottom" HSPACE="0" VSPACE="0">low power-consumption sleep-mode, wake-up by external interrupt or  watchdog timer</div> <div> <IMG BORDER="0" SRC="Symb075c00b700c800000000.gif" HEIGHT="13" WIDTH="24" ALIGN="bottom" HSPACE="0" VSPACE="0">one programmable 8 bit timer which optionally can count an external pin</div> <div> <IMG BORDER="0" SRC="Symb075c00b700c800000000.gif" HEIGHT="13" WIDTH="24" ALIGN="bottom" HSPACE="0" VSPACE="0">8 level hardware-stack</div> <div> clock type selectable: crystal, resonator or RC-network (resistor/capacitor)</div> <bR> <bR> <div> <B>B</B><FONT SIZE="2" COLOR="#000000" FACE="Arial" >ecause of its speed and risc-architecture it is very easy to "bit-bang" additional functions in software, like:</FONT></div> <div> <IMG BORDER="0" SRC="Symb075c00b700c800000000.gif" HEIGHT="13" WIDTH="24" ALIGN="bottom" HSPACE="0" VSPACE="0">I2C (i.e. for serial communication with additional EEPROM)</div> <div> <IMG BORDER="0" SRC="Symb075c00b700c800000000.gif" HEIGHT="13" WIDTH="24" ALIGN="bottom" HSPACE="0" VSPACE="0">1 Wire protocols like for the Dallaschips</div> <div> <IMG BORDER="0" SRC="Symb075c00b700c800000000.gif" HEIGHT="13" WIDTH="24" ALIGN="bottom" HSPACE="0" VSPACE="0">asynchronous RS232 etc.</div> </tD> </tR> <tR> <tD VALIGN=TOP COLSPAN=2 HEIGHT= 574 WIDTH="621"><bR> <div>  <A NAME="the_screenshot_below_shows_the"><IMG BORDER="0" SRC="1x1.gif" HEIGHT="1" ALIGN="bottom" WIDTH="1" HSPACE="0" VSPACE="0" ></A><FONT SIZE="2" COLOR="#0000FF" FACE="Arial" ><B>T</B></FONT><FONT SIZE="2" COLOR="#000000" FACE="Arial" >he screenshot below shows the configuration editor for the PIC16F84 MCU. You can assign  protocols to each I/O pin as well as the clock-configuration. After assiging protocols to the pins, the involved driver-libraries and driver-handles (Bus-variables) to access the pins are automatically available in XPad's editors. When you change the clock-speed here, the compiler will automatically re-calculate the right delays to comply to the specification of any supported protocols.</FONT></div> <bR> <div> <IMG SRC="18c6d9b0.gif" border=0 width="621" height="411" ALIGN="BOTTOM" HSPACE="0" VSPACE="0"></div> <bR> <DIV ALIGN="LEFT"></DIV> <div> <A HREF="id81.htm" TARGET="_top" TITLE="Downloads"><U><I><B>Download XPad and the PIC14 plug-in here!</B></I></U></A></div> </tD> </tR> </TABLE></B></div> <bR> <bR> <bR> <bR> <bR> </td> </tr></table></body>