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Hi,
My friend sent me his code, I change the code a little bit in his flash memory, protocol, variable, function and more.
After compile I not seeing any errors or warnings.
but when I uploading the code to my board, the computer is not detecting my USB (there isnt normal voice of connecting USB, or information in device manger).
when i uploading his original code. the computer detecting the device.
what i made wrong?
what in my changes could interrupt to detect USB?
Where should i check?
A. I do not want you to teach me the way, but to direct me where a mistake is possible?
B. I compared between them, there is a lot of little changes.
I didnt change anything related to USB, just the length of the messages and the way it is conducted.
In brief, where is USB configuration and in particular where is USB configuration that related to the detection by computer?
Thank you a lot on your response!
DRsecr said:there is a lot of little changes
So go back to the original, unmodified, working code.
Then make just one change at a time:
Hi again =]
The problem is with FFT function.
It seen the functions is too heavy or something for the USB
arm_cfft_radix4_init_f32(&S, FFT_SIZE, 0, 1); arm_cfft_radix4_f32(&S, input); arm_cmplx_mag_f32(input, AFFT, FFT_SIZE); arm_max_f32(AFFT, FFT_SIZE, &maxValue, &maxIndex);
I hope you can help me/lead me,
Thank you very much!