Posted on May 31, 2018 at 08:43Hello, dear Community!I'm using DAC to generate oscillogram of a short-circuit in a power line(50Hz). To achieve this I created array of discrete samples in MathCAD with sampling frequency of 4000Hz. In order to feed m...
Posted on November 26, 2017 at 06:27 Dear Community, I'm new to programming and STM32 microconrollers, though, I have to perform FFT of 50Hz voltage. Well, after defining my core by ARM_MATH_CM7 in arm_math.h, I get error messages like: ...
Posted on June 02, 2018 at 09:43 Thank you for reply, Laurent! I drew my attention to the examples I had seen before and noticed there are no any *for* loops in callbacks. I understood my mistake I changed the body of the callback function. It may ...
Posted on November 27, 2017 at 18:10Yes, I understand your explanations. However, I can't get it why I see such errors in Build Output. I have arm_bitreversal.c in my project, whereas I have not the assembly file in DSP folder at all. Suppose it dep...
Posted on November 27, 2017 at 17:22Well, I number of errors decreased to 2, and they are: Fourier\Fourier.axf: Error: L6218E: Undefined symbol arm_bitreversal_32 (referred from arm_cfft_f32.o). Fourier\Fourier.axf: Error: L6218E: Undefined symbol...
