void setup_timer( void )
{
Huint data;
Huint delta;
Huint timer1;
Huint timer2;
Huint timer3;
printf( "Setting up Timer\n" );
timer_set_delta( 0, 5 * DELTA );
delta = timer_get_delta( 0 );
timer_set_data( 0, 0xCAFEBABE );
data = timer_get_data( 0 );
timer_set_command( 0, HT_TIMER_CMD_PERIODIC |
HT_TIMER_CMD_ENABLE |
HT_TIMER_CMD_LOAD |
HT_TIMER_CMD_RUN );
timer1 = timer_get_value( 0 );
timer2 = timer_get_value( 0 );
timer3 = timer_get_value( 0 );
printf( "Timer Delta: %u\n", delta );
printf( "Timer Data: %#08x\n", data );
printf( "Timer Value 1: %#08x\n", timer1 );
printf( "Timer Value 2: %#08x\n", timer2 );
printf( "Timer Value 3: %#08x\n", timer3 );
timer_set_delta( 0, DELTA );
timer_set_command( 0, HT_TIMER_CMD_PERIODIC |
HT_TIMER_CMD_ENABLE |
HT_TIMER_CMD_LOAD |
HT_TIMER_CMD_RUN );
}
/**
* \fn void beep_low_ms(uint16_t ms)
* \brief Generate 2Khz sine signal for x miliseconds.
* \param ms Number of miliseconds.
* */
void beep_low_ms(uint16_t ms)
{
uint32_t count = ((uint32_t)ms*1000)/50;
uint16_t counter = 50;
uint32_t i;
timer_reset();
for(i=0; i<count; i++)
{
DAC_SetChannel2Data(DAC_Align_12b_R, sine_samples[sine_samples_index]);
while(abs_diff(counter,timer_get_value())<50) {}
counter+=50;
sine_samples_index++;
if(sine_samples_index==SINE_SAMPLES_COUNT) sine_samples_index = 0;
}
}
