This thread has been locked.
If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.
Hi Guys,
I am using TMS32F28027 MCU. I wrote a simple code to test the sin table and then printed its values to a text file using Breakpoint method. Actually I am calling till 512, but the text file has 1024 values. I have attached the text file with this post.
My questions:
Array size of sin table, is it 512 or 1024?
Even if it has 1024 values, why is it saving all 1024 values to the text file? Because I am calling till 512 only(pls see CODE below).
The first three values stored in the text file are always garbage value(pls see text file), how to overcome this?
CODE:
void main(void)
{
int y = 0; _iq x = _IQ(0);
for(y = 0; y<512; y++){
x = _IQ30toIQ(IQsinTable[y]);
}
}
1651 3 8806 1 2 0 34020 34020 0 0 402 402 804 804 1206 1206 1607 1607 2009 2009 2410 2410 2811 2811 3211 3211 3611 3611 4011 4011 4409 4409 4808 4808 5205 5205 5602 5602 5997 5997 6392 6392 6786 6786 7179 7179 7571 7571 7961 7961 8351 8351 8739 8739 9126 9126 9512 9512 9896 9896 10278 10278 10659 10659 11039 11039 11416 11416 11793 11793 12167 12167 12539 12539 12910 12910 13278 13278 13645 13645 14010 14010 14372 14372 14732 14732 15090 15090 15446 15446 15800 15800 16151 16151 16499 16499 16846 16846 17189 17189 17530 17530 17869 17869 18204 18204 18537 18537 18868 18868 19195 19195 19519 19519 19841 19841 20159 20159 20475 20475 20787 20787 21097 21097 21403 21403 21706 21706 22005 22005 22301 22301 22594 22594 22884 22884 23170 23170 23453 23453 23732 23732 24007 24007 24279 24279 24547 24547 24812 24812 25073 25073 25330 25330 25583 25583 25832 25832 26077 26077 26319 26319 26557 26557 26790 26790 27020 27020 27245 27245 27466 27466 27684 27684 27897 27897 28106 28106 28310 28310 28511 28511 28707 28707 28898 28898 29086 29086 29269 29269 29447 29447 29621 29621 29791 29791 29956 29956 30117 30117 30273 30273 30425 30425 30572 30572 30714 30714 30852 30852 30985 30985 31114 31114 31237 31237 31357 31357 31471 31471 31581 31581 31685 31685 31785 31785 31881 31881 31971 31971 32057 32057 32138 32138 32214 32214 32285 32285 32351 32351 32413 32413 32469 32469 32521 32521 32568 32568 32610 32610 32647 32647 32679 32679 32706 32706 32728 32728 32745 32745 32758 32758 32765 32765 32768 32768 32765 32765 32758 32758 32745 32745 32728 32728 32706 32706 32679 32679 32647 32647 32610 32610 32568 32568 32521 32521 32469 32469 32413 32413 32351 32351 32285 32285 32214 32214 32138 32138 32057 32057 31971 31971 31881 31881 31785 31785 31685 31685 31581 31581 31471 31471 31357 31357 31237 31237 31114 31114 30985 30985 30852 30852 30714 30714 30572 30572 30425 30425 30273 30273 30117 30117 29956 29956 29791 29791 29621 29621 29447 29447 29269 29269 29086 29086 28898 28898 28707 28707 28511 28511 28310 28310 28106 28106 27897 27897 27684 27684 27466 27466 27245 27245 27020 27020 26790 26790 26557 26557 26319 26319 26077 26077 25832 25832 25583 25583 25330 25330 25073 25073 24812 24812 24547 24547 24279 24279 24007 24007 23732 23732 23453 23453 23170 23170 22884 22884 22594 22594 22301 22301 22005 22005 21706 21706 21403 21403 21097 21097 20787 20787 20475 20475 20159 20159 19841 19841 19519 19519 19195 19195 18868 18868 18537 18537 18204 18204 17869 17869 17530 17530 17189 17189 16846 16846 16499 16499 16151 16151 15800 15800 15446 15446 15090 15090 14732 14732 14372 14372 14010 14010 13645 13645 13278 13278 12910 12910 12539 12539 12167 12167 11793 11793 11416 11416 11039 11039 10659 10659 10278 10278 9896 9896 9512 9512 9126 9126 8739 8739 8351 8351 7961 7961 7571 7571 7179 7179 6786 6786 6392 6392 5997 5997 5602 5602 5205 5205 4808 4808 4409 4409 4011 4011 3611 3611 3211 3211 2811 2811 2410 2410 2009 2009 1607 1607 1206 1206 804 804 402 402 0 0 -403 -403 -805 -805 -1207 -1207 -1608 -1608 -2010 -2010 -2411 -2411 -2812 -2812 -3212 -3212 -3612 -3612 -4012 -4012 -4410 -4410 -4809 -4809 -5206 -5206 -5603 -5603 -5998 -5998 -6393 -6393 -6787 -6787 -7180 -7180 -7572 -7572 -7962 -7962 -8352 -8352 -8740 -8740 -9127 -9127 -9513 -9513 -9897 -9897 -10279 -10279 -10660 -10660 -11040 -11040 -11417 -11417 -11794 -11794 -12168 -12168 -12540 -12540 -12911 -12911 -13279 -13279 -13646 -13646 -14011 -14011 -14373 -14373 -14733 -14733 -15091 -15091 -15447 -15447 -15801 -15801 -16152 -16152 -16500 -16500 -16847 -16847 -17190 -17190 -17531 -17531 -17870 -17870 -18205 -18205 -18538 -18538 -18869 -18869 -19196 -19196 -19520 -19520 -19842 -19842 -20160 -20160 -20476 -20476 -20788 -20788 -21098 -21098 -21404 -21404 -21707 -21707 -22006 -22006 -22302 -22302 -22595 -22595 -22885 -22885 -23171 -23171 -23454 -23454 -23733 -23733 -24008 -24008 -24280 -24280 -24548 -24548 -24813 -24813 -25074 -25074 -25331 -25331 -25584 -25584 -25833 -25833 -26078 -26078 -26320 -26320 -26558 -26558 -26791 -26791 -27021 -27021 -27246 -27246 -27467 -27467 -27685 -27685 -27898 -27898 -28107 -28107 -28311 -28311 -28512 -28512 -28708 -28708 -28899 -28899 -29087 -29087 -29270 -29270 -29448 -29448 -29622 -29622 -29792 -29792 -29957 -29957 -30118 -30118 -30274 -30274 -30426 -30426 -30573 -30573 -30715 -30715 -30853 -30853 -30986 -30986 -31115 -31115 -31238 -31238 -31358 -31358 -31472 -31472 -31582 -31582 -31686 -31686 -31786 -31786 -31882 -31882 -31972 -31972 -32058 -32058 -32139 -32139 -32215 -32215 -32286 -32286 -32352 -32352 -32414 -32414 -32470 -32470 -32522 -32522 -32569 -32569 -32611 -32611 -32648 -32648 -32680 -32680 -32707 -32707 -32729 -32729 -32746 -32746 -32759 -32759 -32766 -32766 -32768 -32768 -32766 -32766 -32759 -32759 -32746 -32746 -32729 -32729 -32707 -32707 -32680 -32680 -32648 -32648 -32611 -32611 -32569 -32569 -32522 -32522 -32470 -32470 -32414 -32414 -32352 -32352 -32286 -32286 -32215 -32215 -32139 -32139 -32058 -32058 -31972 -31972 -31882 -31882 -31786 -31786 -31686 -31686 -31582 -31582 -31472 -31472 -31358 -31358 -31238 -31238 -31115 -31115 -30986 -30986 -30853 -30853 -30715 -30715 -30573 -30573 -30426 -30426 -30274 -30274 -30118 -30118 -29957 -29957 -29792 -29792 -29622 -29622 -29448 -29448 -29270 -29270 -29087 -29087 -28899 -28899 -28708 -28708 -28512 -28512 -28311 -28311 -28107 -28107 -27898 -27898 -27685 -27685 -27467 -27467 -27246 -27246 -27021 -27021 -26791 -26791 -26558 -26558 -26320 -26320 -26078 -26078 -25833 -25833 -25584 -25584 -25331 -25331 -25074 -25074 -24813 -24813 -24548 -24548 -24280 -24280 -24008 -24008 -23733 -23733 -23454 -23454 -23171 -23171 -22885 -22885 -22595 -22595 -22302 -22302 -22006 -22006 -21707 -21707 -21404 -21404 -21098 -21098 -20788 -20788 -20476 -20476 -20160 -20160 -19842 -19842 -19520 -19520 -19196 -19196 -18869 -18869 -18538 -18538 -18205 -18205 -17870 -17870 -17531 -17531 -17190 -17190 -16847 -16847 -16500 -16500 -16152 -16152 -15801 -15801 -15447 -15447 -15091 -15091 -14733 -14733 -14373 -14373 -14011 -14011 -13646 -13646 -13279 -13279 -12911 -12911 -12540 -12540 -12168 -12168 -11794 -11794 -11417 -11417 -11040 -11040 -10660 -10660 -10279 -10279 -9897 -9897 -9513 -9513 -9127 -9127 -8740 -8740 -8352 -8352 -7962 -7962 -7572 -7572 -7180 -7180 -6787 -6787 -6393 -6393 -5998 -5998 -5603 -5603 -5206 -5206 -4809 -4809 -4410 -4410 -4012 -4012 -3612 -3612 -3212 -3212 -2812 -2812 -2411 -2411 -2010 -2010 -1608 -1608 -1207 -1207 -805 -805