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https://github.com/elua/elua.git
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124 lines
4.3 KiB
HTML
124 lines
4.3 KiB
HTML
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Strict//EN">
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<html><head>
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<meta http-equiv="content-type" content="text/html; charset=ISO-8859-1">
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<meta http-equiv="Content-Language" content="en-us">
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<title>Product</title><link rel="stylesheet" type="text/css" href="./style.css"></head>
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<body bgcolor="#ffffff">
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<h3><a name="over"></a>pwm</h3><span style="font-weight: bold;"></span><br><p style="margin-bottom: 0in;">
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<br>
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</p>
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<p style="margin-bottom: 0in;">
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<font face="Bitstream Vera Sans Mono, sans-serif">It allows Lua to use the PWM blocks on the target CPU.</font>
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</p>
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<p style="margin-bottom: 0in;">
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<br>
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</p>
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<p style="margin-bottom: 0in;">
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<font face="Bitstream Vera Sans Mono, sans-serif"><strike><a name="setup"></a>[pwm.setup]</strike>(</font><font face="Bitstream Vera Sans Mono, sans-serif">pwm.setup( id, frequency, Active Cycle ) </font><font face="Bitstream Vera Sans Mono, sans-serif">
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Data = pwm.setup( id, frequency, duty ): sets the PWM block 'id' to
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generate the specified frequency with the specified duty cycle (duty is
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an integer number from 0 to 100, specifying the duty cycle in
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percents). It returns the actual frequency set on the PWM block.</font>
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</p>
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<p style="margin-bottom: 0in;">
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</p>
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<p style="margin-bottom: 0in;">
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<br>
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</p>
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<p style="margin-bottom: 0in;">
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Here there is a bigger change on the proposal.
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</p>
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<p style="margin-bottom: 0in;">
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The Timer Clock and the PWM "frame" frequency would be set up in the same function (.setup)
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</p>
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<p style="margin-bottom: 0in;">
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The normal control function would only set the active cicle (.setcycle)
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</p>
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<p style="margin-bottom: 0in;">
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The original .setup function would then be replaced by:
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</p>
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<p style="margin-bottom: 0in;">
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<br>
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</p>
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<p style="margin-bottom: 0in;">
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<font face="Bitstream Vera Sans Mono, sans-serif">[pwm.setup( id, tmrclock, pwm_frequency )</font> ]<br>
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</p>
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<p style="margin-bottom: 0in;">
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<a name="setcycle"></a>[pwm.setcycle( id, active_cycle )]</p><p style="margin-bottom: 0in;"><font face="Bitstream Vera Sans Mono, sans-serif"><a name="start"></a>[pwm.start()] pwm.start( id ): start the PWM block 'id'.</font>
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</p>
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<p style="margin-bottom: 0in;">
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</p>
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<p style="margin-bottom: 0in;">
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<font face="Bitstream Vera Sans Mono, sans-serif"><a name="stop"></a>[</font><font face="Bitstream Vera Sans Mono, sans-serif">pwm.stop()] </font><font face="Bitstream Vera Sans Mono, sans-serif">pwm.stop( id ): stop the PWM block 'id'.</font>
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</p><br><p style="margin-bottom: 0in;">
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<font face="Bitstream Vera Sans Mono, sans-serif"><a name="setclock"></a>Data = pwm.setclock( id, clock ): set the base clock of the PWM block 'id' to</font>
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</p>
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<p style="margin-bottom: 0in;">
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<font face="Bitstream Vera Sans Mono, sans-serif">the given clock. In returns the actual clock set on the PWM block.</font>
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</p>
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<p style="margin-bottom: 0in;">
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<br>
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</p>
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<p style="margin-bottom: 0in;">
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<font face="Bitstream Vera Sans Mono, sans-serif">[</font><font face="Bitstream Vera Sans Mono, sans-serif"><strike>pwm.getclock</strike>] </font><font face="Bitstream Vera Sans Mono, sans-serif">Data = pwm.getclock( id ): returns the base clock of the PWM block 'id'.</font>
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</p>
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<p style="margin-bottom: 0in;">
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</p>
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<p style="margin-bottom: 0in;">
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<br>
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</p>
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<p style="margin-bottom: 0in;"> Is it really necessary to have
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.getclock ?? The clock is set by the same program, is seldom changed
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during operation, ..........
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</p>
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<p style="margin-bottom: 0in;">
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If really needed, it could be something like pwm.gettimerclock(id) or something (must be discussed.....)
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</p>
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<p style="margin-bottom: 0in;">
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<br>
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</p>
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<br><br><br><br><br><br><br><br><br><br><br><br><br><br>
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</p><big><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br style="font-family: Helvetica,Arial,sans-serif;"><font style="font-family: Helvetica,Arial,sans-serif;" size="2"><big>
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</big></font><br style="font-family: Helvetica,Arial,sans-serif;"><font style="font-family: Helvetica,Arial,sans-serif;" size="2"><big>
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</big></font><br style="font-family: Helvetica,Arial,sans-serif;"><span style="font-family: Helvetica,Arial,sans-serif;">
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</span></big>
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<br>
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<br style="font-family: Verdana;"></body></html> |