Hi,
Only providing the part of function makes it difficult to understand the problem.
It would be better to provide some small working (or not working) whole project.
Having said that I tried to play with your code.
With some tweaks it seems working with "my" way...
============================
#include "project.h"
#include <stdio.h>
#include <stdlib.h>
/*****************************************
Notes
Freq (Hz)
A 220.000 440.000 880.000
A#/Bb 233.082 466.164 932.328
B 246.942 493.883 987.767
C 261.626 523.251 1046.502
C#/Db 277.183 554.365 1108.731
D 293.665 587.330 1174.659
D#/Eb 311.127 622.254 1244.508
E 329.628 659.255 1318.510
F 349.228 698.456 1396.913
F#/Gb 369.994 739.989 1479.978
G 391.995 783.991 1567.982
G#/Ab 415.305 830.609 1661.219
Period in us
A 4545.45 2272.73 1136.36
A#/Bb 4290.34 2145.17 1072.58
B 4049.54 2024.77 1012.38
C 3822.26 1911.13 955.56
C#/Db 3607.73 1803.86 901.93
D 3405.24 1702.62 851.31
D#/Eb 3214.12 1607.06 803.53
E 3033.73 1516.86 758.43
F 2863.46 1431.73 715.86
F#/Gb 2702.74 1351.37 675.69
G 2551.05 1275.53 637.76
G#/Ab 2407.87 1203.94 601.97
Cycle(s) for 500kHz clock
A 9091 4545 2273
A#/Bb 8581 4290 2145
B 8099 4050 2025
C 7645 3822 1911
C#/Db 7215 3608 1804
D 6810 3405 1703
D#/Eb 6428 3214 1607
E 6067 3034 1517
F 5727 2863 1432
F#/Gb 5405 2703 1351
G 5102 2551 1276
G#/Ab 4816 2408 1204
*****************************************/
int beep_delay = 1 ; // 1 ~ 12
int sound_current_diff = 1 ;
int sound_sequence = 0 ;
int bite_volume_first_note = 2273 ; /* 50% duty */
int bite_first_note = 4545 ; /* A 440Hz for 500kHz clock */
int bite_volume_second_note = 1137 ; /* 50% duty */
int bite_second_note = 2273 ; /* A 880Hz for 500kHz clock */
int sounder_running_flag = 0 ;
int sequence_flag = 0 ;
void SounderRoutine()
{
beep_delay = abs(sound_current_diff) ;
if (beep_delay >= 12) beep_delay = 12 ; // limit current diff
switch(sound_sequence) {
case 0:
SOUND_PWM_Stop() ;
case 1:
SOUND_PWM_WriteCompare(bite_volume_first_note) ; // Volume First Note
SOUND_PWM_WritePeriod(bite_first_note) ; // Frequency
SOUND_PWM_Start() ;
SOUNDER_SEQUENCE_Stop() ;
SOUNDER_SEQUENCE_WritePeriod(220 / beep_delay+1 ) ;
SOUNDER_SEQUENCE_WriteCounter(0) ;
SOUNDER_SEQUENCE_Start() ;
sound_sequence = 2 ;
break ;
case 2:
//if (beep_delay >= 8 && max_speed_sounder_pulse == SOUNDER_SINGLE) brea ;
SOUND_PWM_Stop() ;
case 3:
SOUND_PWM_WriteCompare(bite_volume_second_note) ;
SOUND_PWM_WritePeriod(bite_second_note) ;
SOUND_PWM_Start() ;
SOUNDER_SEQUENCE_Stop() ;
SOUNDER_SEQUENCE_WritePeriod(220 / beep_delay+1) ;
SOUNDER_SEQUENCE_WriteCounter(0) ;
SOUNDER_SEQUENCE_Start() ;
sound_sequence = 4 ;
break ;
case 4:
// SOUND_PWM_WriteCompare(0) ;
SOUNDER_SEQUENCE_Stop() ;
SOUNDER_SEQUENCE_WritePeriod(10) ;
SOUNDER_SEQUENCE_WriteCounter(0) ;
SOUND_PWM_Stop() ;
sound_sequence = 0 ;
sounder_running_flag = 0 ;
break ;
}
}
CY_ISR(sequence_isr)
{
SOUNDER_SEQUENCE_ClearInterrupt(SOUNDER_SEQUENCE_TC_INTERRUPT_MASK) ;
sequence_flag = 1 ;
}
int main(void)
{
char str[64] ;
CyGlobalIntEnable; /* Enable global interrupts. */
UART_Start() ;
sprintf(str, "Timer Test Program (%s %s) started\n", __DATE__, __TIME__) ;
UART_UartPutString(str) ;
SOUND_PWM_WriteCompare(0) ;
SOUND_PWM_Start() ;
Sounder_Sequence_int_StartEx(sequence_isr) ;
SOUNDER_SEQUENCE_Start() ;
sequence_flag = 1 ;
for(;;) {
if (sequence_flag) {
sprintf(str, "Sequence %d\n", sound_sequence) ;
UART_UartPutString(str) ;
SounderRoutine() ;
sequence_flag = 0 ;
}
}
}
/* [] END OF FILE */
============================
Attached is my trial with CY8CKIT-044.
After archiving the project, I noticed that I mis-spelled the project,
I meant pit (periodical interrupt timer) but it ended up to "pti",
but the name does not affect the function (I hope).
moto
