In the university we had to programm all registers manually. You were only given the header file for the device with all of the registers. From what I have understood Keil acts like an interface to set registers via the CMSIS files. Still some registers…

I'm trying to learn a little about DSP in stm32 microcontrollers.

I follow the instructions on the official site:

arm-software.github.io/.../index.html

And i downloaded the CMSIS package from github:

github.com/.../CMSIS_5


CMSIS Package manual tells that…

Hi all,

I've been looking into this challenge for a couple of days, I figured now would be a good time for me to ask some questions on a forum like this. I have done some C++ programming in the past; I'm slowly getting back into the mindset and vernacular…

Hello,

I am following this (https://www.keil.com/pack/doc/mw/Network/html/network_create_app.html#Runtime%20Configuration) tutorial about the Network library with CMSIS. I could change the Mac address via " netIF_SetOption (NET_IF_CLASS_ETH | 0,…

My product is using M0+ core of MCU. And it has FFT and FIR process using CMSIS-DSP. 

But I faced an issue for performance of these process. It cannot finish doing process within some period of system.

Is there any ideas or ways to improve performance…

Hi all, I'm new and I'm doing a project to manage some ports in digital and ADC way but let me start for the basics.

I have the cortex-M3 stm32f103c6 microcontroller and I'm trying to create a project using CMSIS, CMSIS has a function to initialize…

Hi all, how are you?, Im very new with ARM microcontrollers and I've been doing a lite lecture of about 4 books to know how to configure this devices to start programming it, first I did a reading an how to use mbed but I think that I need to do some…

Hello,
I'm facing an unexpected issue while configuring the MPU on a Cortex-M7 (STM32H7). Basically, after setting the MPU in privileged thread mode, the execution continues up to when I switch to unprivileged thread mode writing into the CONTROL register…

Hello. Hope it's the right forum to ask such questions. I'm a newbie, using stm32f407VG discovery board, trying to configure SPI1, but it seems it doesn't work. I'm trying to make the nrf24l01 work and the module itself seems to be ok because it works…

Hello.

I've been having issues with a program of mine that works perfectly fine while running with optimizations enabled but if I disable it, it doesn't seem to get to main, the only exception being running in debug mode.  I have set up the pins…

Which parts of CMSIS-DSP are used for CMSIS-NN? I'm asking because I want to disable as much options as possible of the CMSIS-DSP.

Hi,

I'm reading through the sources of CMSIS-DSP and came across the following question:

The define of  "ARM_MATH_DSP" is only set if the target architecture is "ARM_ARCH_7EM". Does this mean, that all functions defined for ARM_MATH_DSP are not used…

I am finding difficulty in applying the Butterworth Low pass filter on EMG signals using the Tiva C series board (tm4c123gh6pm) using the CMSIS library. Please suggested to me.

I have a project with CMSIS already integrated - I would like to find which version of CMSIS - how do I do that?

I thought perhaps the file: https://github.com/ARM-software/CMSIS_5/blob/develop/CMSIS/Core/Include/cmsis_version.h

However, the tagged…

I am new to embedded software development but I have chosen to begin learning through the KL25Z board.  At the moment, I am exploring the use of SysTick interrupts, but after debugging and reducing my code, I see that it never enters the SysTick ISR.  I…

I'm trying to use the CMSIS DSP library to compute a DCT, however I don't understand how it works.

Namely what I don't understand is the pointer to the state buffer. What is this state buffer? It's an input parameter, what should be in that buffer…

Hi

I have tried to test CMSIS DSP FIR library in my STM32G474. Unfortunately after writing a simple test code, where i have prepared input signal and fir coefficients (by Matlab, verified) processor after executing arm_fir_q15 instruction goes to the…

Hello. I’m using stm32f407VG discovery and Keil uvision 5 and I can’t find an indtruction how to set clock properly. I wanna use internal 16 MHz SYSCLK for communication throughout virtual COM port. Here is a code I have found in a book, but it doesn…

I want to start on using CMSIS and as well as also possibly implement my own drivers with CMSIS interface.I don't have a clear pic in my head of the complete layout of CMSIS, what goes into it. Specifically about Driver:

https://arm-software.github…

I have a code that computes FFT using fftpack functions npy_rffti and npy_rfftf . I want to replace them using arm library functions. I have a real signal. I wrote the below code.

arm_rfft_fast_instance_f32 rfft_instance;

arm_rfft_fast_init_f32…

Hello,

Memory overflow occurs when receiving 2 bytes using the driver.  Works fine for 1 byte.

Here is a code to simulate the problem:

ARM_DRIVER_I2C *I2Cdrv = &Driver_I2C1;
uint8_t buf[2];
uint32_t n;

I2Cdrv->MasterReceive(0x55, buf, 2, false);…

Hello,

I am using TI Hercules Evaluation Board TMS570LS0714 which is ARM Cortex R. For this processor TI provides pre-compiled libraries, available at http://www.ti.com/tool/HERCULES-DSPLIB .I am able to add these libraries to my project in code composer…