void SPU_struct::KeyProbe(int chan_num)
{
channel_struct &thischan = channels[chan_num];
if(thischan.status == CHANSTAT_STOPPED)
{
if(thischan.keyon && regs.masteren)
KeyOn(chan_num);
}
else if(thischan.status == CHANSTAT_PLAY)
{
if(!thischan.keyon || !regs.masteren)
KeyOff(chan_num);
}
}
void isr_low( void )
{
unsigned char temp;
unsigned short tval0, tval1;
char *p;
// Clock
if ( PIR1bits.TMR1IF ) { // If a Timer1 Interrupt, Then...
WriteTimer1( 0xD8F0 ); // 1 mS
vscp_timer++;
/************** Handle Init button **************/
if ( PORTCbits.RC1 ) {
vscp_initbtncnt = 0;
}
else {
// Active
vscp_initbtncnt++;
}
/************** VSCP LED *****************/
vscp_statuscnt++;
if ( ( VSCP_LED_BLINK1 == vscp_initledfunc ) && ( vscp_statuscnt > 100 ) ) {
if ( PORTAbits.RA2 ) {
PORTAbits.RA2 = 0;
}
else {
PORTAbits.RA2 = 1;
}
vscp_statuscnt = 0;
}
else if ( VSCP_LED_ON == vscp_initledfunc ) {
PORTAbits.RA2 = 1;
vscp_statuscnt = 0;
}
else if ( VSCP_LED_OFF == vscp_initledfunc ) {
PORTAbits.RA2 = 0;
vscp_statuscnt = 0;
}
/***************** Key *********************/
if( KeyTimer ) {
KeyTimer--;
}
else {
KeyOff();
}
/***************** Red LED *********************/
if( RedLedTimer ) {
RedLedTimer--;
}
else {
RedLedOff();
}
/***************** Green LED *******************/
if ( GreenLedTimer ) {
GreenLedTimer--;
}
else {
GreenLedOff();
}
/***************** Beeper **********************/
if ( BeeperTimer ) {
BeeperTimer--;
}
else {
PORTCbits.RC0 = 0;
if ( PWM_enable == OFF ) {
OpenPWM1( PWM_f );
SetDCPWM1( ( PWM_f * 2 ) - 6 );
PWM_enable = ON;
}
}
/**************** EmData Timer ****************/
if ( EmDataTimer ){
EmDataTimer--;
}
PIR1bits.TMR1IF = 0; // Clear Timer1 Interrupt Flag
}
return;
}
