timer_8c-source.html

avr应用测试程序

00316     sbi(TCCR1B,WGM13);
00317     
00318     <span class="comment">// set top count value</span>
00319     ICR1 = topcount;
00320     
00321     <span class="comment">// clear output compare value A</span>
00322     OCR1A = 0;
00323     <span class="comment">// clear output compare value B</span>
00324     OCR1B = 0;
00325 
00326 }
00327 <span class="preprocessor">#endif</span>
00328 <span class="preprocessor"></span>
<a name="l00329"></a><a class="code" href="group__timer128.html#ga23">00329</a> <span class="keywordtype">void</span> <a class="code" href="group__timerpwm.html#ga2">timer1PWMOff</a>(<span class="keywordtype">void</span>)
00330 {
00331     <span class="comment">// turn off timer1 PWM mode</span>
00332     cbi(TCCR1A,PWM11);
00333     cbi(TCCR1A,PWM10);
00334     <span class="comment">// set PWM1A/B (OutputCompare action) to none</span>
00335     <a class="code" href="group__timerpwm.html#ga5">timer1PWMAOff</a>();
00336     <a class="code" href="group__timerpwm.html#ga6">timer1PWMBOff</a>();
00337 }
00338 
<a name="l00339"></a><a class="code" href="group__timer128.html#ga24">00339</a> <span class="keywordtype">void</span> <a class="code" href="group__timerpwm.html#ga3">timer1PWMAOn</a>(<span class="keywordtype">void</span>)
00340 {
00341     <span class="comment">// turn on channel A (OC1A) PWM output</span>
00342     <span class="comment">// set OC1A as non-inverted PWM</span>
00343     sbi(TCCR1A,COM1A1);
00344     cbi(TCCR1A,COM1A0);
00345 }
00346 
<a name="l00347"></a><a class="code" href="group__timer128.html#ga25">00347</a> <span class="keywordtype">void</span> <a class="code" href="group__timerpwm.html#ga4">timer1PWMBOn</a>(<span class="keywordtype">void</span>)
00348 {
00349     <span class="comment">// turn on channel B (OC1B) PWM output</span>
00350     <span class="comment">// set OC1B as non-inverted PWM</span>
00351     sbi(TCCR1A,COM1B1);
00352     cbi(TCCR1A,COM1B0);
00353 }
00354 
<a name="l00355"></a><a class="code" href="group__timer128.html#ga27">00355</a> <span class="keywordtype">void</span> <a class="code" href="group__timerpwm.html#ga5">timer1PWMAOff</a>(<span class="keywordtype">void</span>)
00356 {
00357     <span class="comment">// turn off channel A (OC1A) PWM output</span>
00358     <span class="comment">// set OC1A (OutputCompare action) to none</span>
00359     cbi(TCCR1A,COM1A1);
00360     cbi(TCCR1A,COM1A0);
00361 }
00362 
<a name="l00363"></a><a class="code" href="group__timer128.html#ga28">00363</a> <span class="keywordtype">void</span> <a class="code" href="group__timerpwm.html#ga6">timer1PWMBOff</a>(<span class="keywordtype">void</span>)
00364 {
00365     <span class="comment">// turn off channel B (OC1B) PWM output</span>
00366     <span class="comment">// set OC1B (OutputCompare action) to none</span>
00367     cbi(TCCR1A,COM1B1);
00368     cbi(TCCR1A,COM1B0);
00369 }
00370 
<a name="l00371"></a><a class="code" href="group__timer128.html#ga30">00371</a> <span class="keywordtype">void</span> <a class="code" href="group__timerpwm.html#ga7">timer1PWMASet</a>(u16 pwmDuty)
00372 {
00373     <span class="comment">// set PWM (output compare) duty for channel A</span>
00374     <span class="comment">// this PWM output is generated on OC1A pin</span>
00375     <span class="comment">// NOTE:    pwmDuty should be in the range 0-255 for 8bit PWM</span>
00376     <span class="comment">//          pwmDuty should be in the range 0-511 for 9bit PWM</span>
00377     <span class="comment">//          pwmDuty should be in the range 0-1023 for 10bit PWM</span>
00378     <span class="comment">//outp( (pwmDuty&gt;&gt;8), OCR1AH);      // set the high 8bits of OCR1A</span>
00379     <span class="comment">//outp( (pwmDuty&amp;0x00FF), OCR1AL);  // set the low 8bits of OCR1A</span>
00380     OCR1A = pwmDuty;
00381 }
00382 
<a name="l00383"></a><a class="code" href="group__timer128.html#ga31">00383</a> <span class="keywordtype">void</span> <a class="code" href="group__timerpwm.html#ga8">timer1PWMBSet</a>(u16 pwmDuty)
00384 {
00385     <span class="comment">// set PWM (output compare) duty for channel B</span>
00386     <span class="comment">// this PWM output is generated on OC1B pin</span>
00387     <span class="comment">// NOTE:    pwmDuty should be in the range 0-255 for 8bit PWM</span>
00388     <span class="comment">//          pwmDuty should be in the range 0-511 for 9bit PWM</span>
00389     <span class="comment">//          pwmDuty should be in the range 0-1023 for 10bit PWM</span>
00390     <span class="comment">//outp( (pwmDuty&gt;&gt;8), OCR1BH);      // set the high 8bits of OCR1B</span>
00391     <span class="comment">//outp( (pwmDuty&amp;0x00FF), OCR1BL);  // set the low 8bits of OCR1B</span>
00392     OCR1B = pwmDuty;
00393 }
00394 <span class="comment"></span>
00395 <span class="comment">//! Interrupt handler for tcnt0 overflow interrupt</span>
<a name="l00396"></a><a class="code" href="timer_8c.html#a27">00396</a> <span class="comment"></span>TIMER_INTERRUPT_HANDLER(SIG_OVERFLOW0)
00397 {
00398     Timer0Reg0++;           <span class="comment">// increment low-order counter</span>
00399 
00400     <span class="comment">// increment pause counter</span>
00401     TimerPauseReg++;
00402 
00403     <span class="comment">// if a user function is defined, execute it too</span>
00404     <span class="keywordflow">if</span>(TimerIntFunc[TIMER0OVERFLOW_INT])
00405         TimerIntFunc[TIMER0OVERFLOW_INT]();
00406 }
00407 <span class="comment"></span>
00408 <span class="comment">//! Interrupt handler for tcnt1 overflow interrupt</span>
<a name="l00409"></a><a class="code" href="timer_8c.html#a28">00409</a> <span class="comment"></span>TIMER_INTERRUPT_HANDLER(SIG_OVERFLOW1)
00410 {
00411     <span class="comment">// if a user function is defined, execute it</span>
00412     <span class="keywordflow">if</span>(TimerIntFunc[TIMER1OVERFLOW_INT])
00413         TimerIntFunc[TIMER1OVERFLOW_INT]();
00414 }
00415 
00416 <span class="preprocessor">#ifdef TCNT2    // support timer2 only if it exists</span>
00417 <span class="preprocessor"></span><span class="comment">//! Interrupt handler for tcnt2 overflow interrupt</span>
00418 <span class="comment"></span>TIMER_INTERRUPT_HANDLER(SIG_OVERFLOW2)
00419 {
00420     Timer2Reg0++;           <span class="comment">// increment low-order counter</span>
00421 
00422     <span class="comment">// if a user function is defined, execute it</span>
00423     <span class="keywordflow">if</span>(TimerIntFunc[TIMER2OVERFLOW_INT])
00424         TimerIntFunc[TIMER2OVERFLOW_INT]();
00425 }
00426 <span class="preprocessor">#endif</span>
00427 <span class="preprocessor"></span>
00428 <span class="preprocessor">#ifdef OCR0</span>
00429 <span class="preprocessor"></span><span class="comment">// include support for Output Compare 0 for new AVR processors that support it</span><span class="comment"></span>
00430 <span class="comment">//! Interrupt handler for OutputCompare0 match (OC0) interrupt</span>
00431 <span class="comment"></span>TIMER_INTERRUPT_HANDLER(SIG_OUTPUT_COMPARE0)
00432 {
00433     <span class="comment">// if a user function is defined, execute it</span>
00434     <span class="keywordflow">if</span>(TimerIntFunc[TIMER0OUTCOMPARE_INT])
00435         TimerIntFunc[TIMER0OUTCOMPARE_INT]();
00436 }
00437 <span class="preprocessor">#endif</span>
00438 <span class="preprocessor"></span><span class="comment"></span>
00439 <span class="comment">//! Interrupt handler for CutputCompare1A match (OC1A) interrupt</span>
<a name="l00440"></a><a class="code" href="timer_8c.html#a29">00440</a> <span class="comment"></span>TIMER_INTERRUPT_HANDLER(SIG_OUTPUT_COMPARE1A)
00441 {
00442     <span class="comment">// if a user function is defined, execute it</span>
00443     <span class="keywordflow">if</span>(TimerIntFunc[TIMER1OUTCOMPAREA_INT])
00444         TimerIntFunc[TIMER1OUTCOMPAREA_INT]();
00445 }
00446 <span class="comment"></span>
00447 <span class="comment">//! Interrupt handler for OutputCompare1B match (OC1B) interrupt</span>
<a name="l00448"></a><a class="code" href="timer_8c.html#a30">00448</a> <span class="comment"></span>TIMER_INTERRUPT_HANDLER(SIG_OUTPUT_COMPARE1B)
00449 {
00450     <span class="comment">// if a user function is defined, execute it</span>
00451     <span class="keywordflow">if</span>(TimerIntFunc[TIMER1OUTCOMPAREB_INT])
00452         TimerIntFunc[TIMER1OUTCOMPAREB_INT]();
00453 }
00454 <span class="comment"></span>
00455 <span class="comment">//! Interrupt handler for InputCapture1 (IC1) interrupt</span>
<a name="l00456"></a><a class="code" href="timer_8c.html#a31">00456</a> <span class="comment"></span>TIMER_INTERRUPT_HANDLER(SIG_INPUT_CAPTURE1)
00457 {
00458     <span class="comment">// if a user function is defined, execute it</span>
00459     <span class="keywordflow">if</span>(TimerIntFunc[TIMER1INPUTCAPTURE_INT])
00460         TimerIntFunc[TIMER1INPUTCAPTURE_INT]();
00461 }
00462 <span class="comment"></span>
00463 <span class="comment">//! Interrupt handler for OutputCompare2 match (OC2) interrupt</span>
<a name="l00464"></a><a class="code" href="timer_8c.html#a32">00464</a> <span class="comment"></span>TIMER_INTERRUPT_HANDLER(SIG_OUTPUT_COMPARE2)
00465 {
00466     <span class="comment">// if a user function is defined, execute it</span>
00467     <span class="keywordflow">if</span>(TimerIntFunc[TIMER2OUTCOMPARE_INT])
00468         TimerIntFunc[TIMER2OUTCOMPARE_INT]();
00469 }
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