timer_8c-source.html

国外牛人公开的ＡＶＲ代码

00318     sbi(TCCR1B,WGM12);
00319     sbi(TCCR1B,WGM13);
00320     
00321     <span class="comment">// set top count value</span>
00322     ICR1 = topcount;
00323     
00324     <span class="comment">// clear output compare value A</span>
00325     OCR1A = 0;
00326     <span class="comment">// clear output compare value B</span>
00327     OCR1B = 0;
00328 
00329 }
00330 <span class="preprocessor">#endif</span>
00331 <span class="preprocessor"></span>
<a name="l00332"></a><a class="code" href="group__timer128.html#ga23">00332</a> <span class="keywordtype">void</span> <a class="code" href="group__timerpwm.html#ga2">timer1PWMOff</a>(<span class="keywordtype">void</span>)
00333 {
00334     <span class="comment">// turn off timer1 PWM mode</span>
00335     cbi(TCCR1A,PWM11);
00336     cbi(TCCR1A,PWM10);
00337     <span class="comment">// set PWM1A/B (OutputCompare action) to none</span>
00338     <a class="code" href="group__timerpwm.html#ga5">timer1PWMAOff</a>();
00339     <a class="code" href="group__timerpwm.html#ga6">timer1PWMBOff</a>();
00340 }
00341 
<a name="l00342"></a><a class="code" href="group__timer128.html#ga24">00342</a> <span class="keywordtype">void</span> <a class="code" href="group__timerpwm.html#ga3">timer1PWMAOn</a>(<span class="keywordtype">void</span>)
00343 {
00344     <span class="comment">// turn on channel A (OC1A) PWM output</span>
00345     <span class="comment">// set OC1A as non-inverted PWM</span>
00346     sbi(TCCR1A,COM1A1);
00347     cbi(TCCR1A,COM1A0);
00348 }
00349 
<a name="l00350"></a><a class="code" href="group__timer128.html#ga25">00350</a> <span class="keywordtype">void</span> <a class="code" href="group__timerpwm.html#ga4">timer1PWMBOn</a>(<span class="keywordtype">void</span>)
00351 {
00352     <span class="comment">// turn on channel B (OC1B) PWM output</span>
00353     <span class="comment">// set OC1B as non-inverted PWM</span>
00354     sbi(TCCR1A,COM1B1);
00355     cbi(TCCR1A,COM1B0);
00356 }
00357 
<a name="l00358"></a><a class="code" href="group__timer128.html#ga27">00358</a> <span class="keywordtype">void</span> <a class="code" href="group__timerpwm.html#ga5">timer1PWMAOff</a>(<span class="keywordtype">void</span>)
00359 {
00360     <span class="comment">// turn off channel A (OC1A) PWM output</span>
00361     <span class="comment">// set OC1A (OutputCompare action) to none</span>
00362     cbi(TCCR1A,COM1A1);
00363     cbi(TCCR1A,COM1A0);
00364 }
00365 
<a name="l00366"></a><a class="code" href="group__timer128.html#ga28">00366</a> <span class="keywordtype">void</span> <a class="code" href="group__timerpwm.html#ga6">timer1PWMBOff</a>(<span class="keywordtype">void</span>)
00367 {
00368     <span class="comment">// turn off channel B (OC1B) PWM output</span>
00369     <span class="comment">// set OC1B (OutputCompare action) to none</span>
00370     cbi(TCCR1A,COM1B1);
00371     cbi(TCCR1A,COM1B0);
00372 }
00373 
<a name="l00374"></a><a class="code" href="group__timer128.html#ga30">00374</a> <span class="keywordtype">void</span> <a class="code" href="group__timerpwm.html#ga7">timer1PWMASet</a>(u16 pwmDuty)
00375 {
00376     <span class="comment">// set PWM (output compare) duty for channel A</span>
00377     <span class="comment">// this PWM output is generated on OC1A pin</span>
00378     <span class="comment">// NOTE:    pwmDuty should be in the range 0-255 for 8bit PWM</span>
00379     <span class="comment">//          pwmDuty should be in the range 0-511 for 9bit PWM</span>
00380     <span class="comment">//          pwmDuty should be in the range 0-1023 for 10bit PWM</span>
00381     <span class="comment">//outp( (pwmDuty&gt;&gt;8), OCR1AH);      // set the high 8bits of OCR1A</span>
00382     <span class="comment">//outp( (pwmDuty&amp;0x00FF), OCR1AL);  // set the low 8bits of OCR1A</span>
00383     OCR1A = pwmDuty;
00384 }
00385 
<a name="l00386"></a><a class="code" href="group__timer128.html#ga31">00386</a> <span class="keywordtype">void</span> <a class="code" href="group__timerpwm.html#ga8">timer1PWMBSet</a>(u16 pwmDuty)
00387 {
00388     <span class="comment">// set PWM (output compare) duty for channel B</span>
00389     <span class="comment">// this PWM output is generated on OC1B pin</span>
00390     <span class="comment">// NOTE:    pwmDuty should be in the range 0-255 for 8bit PWM</span>
00391     <span class="comment">//          pwmDuty should be in the range 0-511 for 9bit PWM</span>
00392     <span class="comment">//          pwmDuty should be in the range 0-1023 for 10bit PWM</span>
00393     <span class="comment">//outp( (pwmDuty&gt;&gt;8), OCR1BH);      // set the high 8bits of OCR1B</span>
00394     <span class="comment">//outp( (pwmDuty&amp;0x00FF), OCR1BL);  // set the low 8bits of OCR1B</span>
00395     OCR1B = pwmDuty;
00396 }
00397 <span class="comment"></span>
00398 <span class="comment">//! Interrupt handler for tcnt0 overflow interrupt</span>
<a name="l00399"></a><a class="code" href="timer_8c.html#a27">00399</a> <span class="comment"></span>TIMER_INTERRUPT_HANDLER(SIG_OVERFLOW0)
00400 {
00401     Timer0Reg0++;           <span class="comment">// increment low-order counter</span>
00402 
00403     <span class="comment">// increment pause counter</span>
00404     TimerPauseReg++;
00405 
00406     <span class="comment">// if a user function is defined, execute it too</span>
00407     <span class="keywordflow">if</span>(TimerIntFunc[TIMER0OVERFLOW_INT])
00408         TimerIntFunc[TIMER0OVERFLOW_INT]();
00409 }
00410 <span class="comment"></span>
00411 <span class="comment">//! Interrupt handler for tcnt1 overflow interrupt</span>
<a name="l00412"></a><a class="code" href="timer_8c.html#a28">00412</a> <span class="comment"></span>TIMER_INTERRUPT_HANDLER(SIG_OVERFLOW1)
00413 {
00414     <span class="comment">// if a user function is defined, execute it</span>
00415     <span class="keywordflow">if</span>(TimerIntFunc[TIMER1OVERFLOW_INT])
00416         TimerIntFunc[TIMER1OVERFLOW_INT]();
00417 }
00418 
00419 <span class="preprocessor">#ifdef TCNT2    // support timer2 only if it exists</span>
00420 <span class="preprocessor"></span><span class="comment">//! Interrupt handler for tcnt2 overflow interrupt</span>
00421 <span class="comment"></span>TIMER_INTERRUPT_HANDLER(SIG_OVERFLOW2)
00422 {
00423     Timer2Reg0++;           <span class="comment">// increment low-order counter</span>
00424 
00425     <span class="comment">// if a user function is defined, execute it</span>
00426     <span class="keywordflow">if</span>(TimerIntFunc[TIMER2OVERFLOW_INT])
00427         TimerIntFunc[TIMER2OVERFLOW_INT]();
00428 }
00429 <span class="preprocessor">#endif</span>
00430 <span class="preprocessor"></span>
00431 <span class="preprocessor">#ifdef OCR0</span>
00432 <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>
00433 <span class="comment">//! Interrupt handler for OutputCompare0 match (OC0) interrupt</span>
00434 <span class="comment"></span>TIMER_INTERRUPT_HANDLER(SIG_OUTPUT_COMPARE0)
00435 {
00436     <span class="comment">// if a user function is defined, execute it</span>
00437     <span class="keywordflow">if</span>(TimerIntFunc[TIMER0OUTCOMPARE_INT])
00438         TimerIntFunc[TIMER0OUTCOMPARE_INT]();
00439 }
00440 <span class="preprocessor">#endif</span>
00441 <span class="preprocessor"></span><span class="comment"></span>
00442 <span class="comment">//! Interrupt handler for CutputCompare1A match (OC1A) interrupt</span>
<a name="l00443"></a><a class="code" href="timer_8c.html#a29">00443</a> <span class="comment"></span>TIMER_INTERRUPT_HANDLER(SIG_OUTPUT_COMPARE1A)
00444 {
00445     <span class="comment">// if a user function is defined, execute it</span>
00446     <span class="keywordflow">if</span>(TimerIntFunc[TIMER1OUTCOMPAREA_INT])
00447         TimerIntFunc[TIMER1OUTCOMPAREA_INT]();
00448 }
00449 <span class="comment"></span>
00450 <span class="comment">//! Interrupt handler for OutputCompare1B match (OC1B) interrupt</span>
<a name="l00451"></a><a class="code" href="timer_8c.html#a30">00451</a> <span class="comment"></span>TIMER_INTERRUPT_HANDLER(SIG_OUTPUT_COMPARE1B)
00452 {
00453     <span class="comment">// if a user function is defined, execute it</span>
00454     <span class="keywordflow">if</span>(TimerIntFunc[TIMER1OUTCOMPAREB_INT])
00455         TimerIntFunc[TIMER1OUTCOMPAREB_INT]();
00456 }
00457 <span class="comment"></span>
00458 <span class="comment">//! Interrupt handler for InputCapture1 (IC1) interrupt</span>
<a name="l00459"></a><a class="code" href="timer_8c.html#a31">00459</a> <span class="comment"></span>TIMER_INTERRUPT_HANDLER(SIG_INPUT_CAPTURE1)
00460 {
00461     <span class="comment">// if a user function is defined, execute it</span>
00462     <span class="keywordflow">if</span>(TimerIntFunc[TIMER1INPUTCAPTURE_INT])
00463         TimerIntFunc[TIMER1INPUTCAPTURE_INT]();
00464 }
00465 <span class="comment"></span>
00466 <span class="comment">//! Interrupt handler for OutputCompare2 match (OC2) interrupt</span>
<a name="l00467"></a><a class="code" href="timer_8c.html#a32">00467</a> <span class="comment"></span>TIMER_INTERRUPT_HANDLER(SIG_OUTPUT_COMPARE2)
00468 {
00469     <span class="comment">// if a user function is defined, execute it</span>
00470     <span class="keywordflow">if</span>(TimerIntFunc[TIMER2OUTCOMPARE_INT])
00471         TimerIntFunc[TIMER2OUTCOMPARE_INT]();
00472 }
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