Conrad C-Control Pro Mega Series, Руководство пользователя

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196 Libraries
© 2008 Conrad Electronic
{
Msg_WriteText(str2); Thread_Delay( 200 );
} // "Thread2" is displayed
} // after that the thread
// sleeps for 200ms
char str1[ 12 ],str2[ 12 ]; // global variable declaration
//------------------------------------------------------------------------------
// main program
//
void main(void)
{
str1= "Thread1" ; // variable declaration
str2= "Thread2" ; // variable declaration
Thread_Start( 1 ,thread1); // start new thread
while(true) // endless loop
{
Thread_Delay( 100 ); Msg_WriteText(str1);
} // the thread sleeps for 100ms
} // after that "Thread1" is displayed
6.19 Timer
In C-Control Pro Mega 32 there are two, in Mega128 are three independent timers available. These
are Timer_0 with 8 bit and Timer_1 with 16 bit (Timer_3 with 16 bit for Mega128 only). Timer_2 is
used by the firmware as an internal time base and is set firm to a 10ms interrupt. These internal
timers can be utilized for a multitude of tasks:
·
Event Counter
·
Frequency Generation
·
Pulse Width Modulation
·
Timer Functions
·
Pulse & Period Measurement
·
Frequency Measurement
6.19.1 Event Counter
Here are two examples for how a Timer can be used for an Event Counter:
Timer0 (8 Bit)
// Example: Pulse Counting with CNT0
Timer_T0CNT ();
pulse(n); // generate n Pulses
count= Timer_T0GetCNT ();