void TIMER32_0_IRQHandler()
{
static unsigned int duty_counter_r = 0;
static unsigned int duty_counter_g = 0;
static unsigned int duty_counter_b = 0;
static unsigned int bl_duty_counter = 0;
static unsigned int period_counter = 0;
static int activity_counter = 0;
CoEnterISR();
TIM_ClearIntPending(LPC_TMR32B0, TIM_MR0_INT);
// 39.0625us activity indicator (for calibration)
GPIO_ToggleBits(TIMER_ACTIVITY_PORT, TIMER_ACTIVITY_PIN);
if( period_counter -- > 0 ) {
if( duty_counter_r -- == 0 )
GPIO_ResetBits(RED_PORT, RED_PIN);
if( duty_counter_g -- == 0 )
GPIO_ResetBits(GREEN_PORT, GREEN_PIN);
if( duty_counter_b -- == 0 )
GPIO_ResetBits(BLUE_PORT, BLUE_PIN);
if (bl_duty_counter-- == 0)
GPIO_ResetBits(LCD_BACKLITE_PORT, LCD_BACKLITE_PIN);
}
else {
if( activity_counter ++ >= TICKS_PER_SECOND ) {
activity_counter = 0;
GPIO_ToggleBits(TIMER_ACTIVITY_PORT, TIMER_ACTIVITY_PIN);
//if( device_mode == AMBIENT_TEMPERATURE )
// PLUGIN_Temperature_Update();
}
SEQ_Tick();
duty_counter_r = SEQ_CurrentRed();
duty_counter_r == 0 ? GPIO_ResetBits(RED_PORT, RED_PIN) : GPIO_SetBits(RED_PORT, RED_PIN);
duty_counter_g = SEQ_CurrentGreen();
duty_counter_g == 0 ? GPIO_ResetBits(GREEN_PORT, GREEN_PIN ) : GPIO_SetBits(GREEN_PORT, GREEN_PIN );
duty_counter_b = SEQ_CurrentBlue();
duty_counter_b == 0 ? GPIO_ResetBits(BLUE_PORT, BLUE_PIN ) : GPIO_SetBits(BLUE_PORT, BLUE_PIN );
bl_duty_counter = backlite_power;
bl_duty_counter == 0 ? GPIO_ResetBits(LCD_BACKLITE_PORT, LCD_BACKLITE_PIN) : GPIO_SetBits(LCD_BACKLITE_PORT, LCD_BACKLITE_PIN);
period_counter = 255;
}
CoExitISR();
}
/////////////////////////////////////////////////////////////////////////////
// this sequencer handler is called periodically to check for new requests
// from BPM generator
/////////////////////////////////////////////////////////////////////////////
s32 SEQ_Handler(void)
{
// a lower priority task requested to play the next file
if( next_file_req ) {
SEQ_PlayFile(next_file_req-1);
next_file_req = 0;
};
// handle BPM requests
u8 num_loops = 0;
u8 again = 0;
do {
++num_loops;
// note: don't remove any request check - clocks won't be propagated
// so long any Stop/Cont/Start/SongPos event hasn't been flagged to the sequencer
if( SEQ_BPM_ChkReqStop() ) {
SEQ_PlayOffEvents();
}
if( SEQ_BPM_ChkReqCont() ) {
// release pause mode
seq_pause = 0;
}
if( SEQ_BPM_ChkReqStart() ) {
SEQ_Reset(1);
SEQ_SongPos(0);
}
u16 new_song_pos;
if( SEQ_BPM_ChkReqSongPos(&new_song_pos) ) {
SEQ_SongPos(new_song_pos);
}
u32 bpm_tick;
if( SEQ_BPM_ChkReqClk(&bpm_tick) > 0 ) {
again = 1; // check all requests again after execution of this part
SEQ_Tick(bpm_tick);
}
} while( again && num_loops < 10 );
return 0; // no error
}
