We are making our DAC output a sinusoid of variable frequency depending on a button we press. The DAC does work when we hard code which button WE press but not with UART. With the UART handler (used for receiving the "button" we press and incrementing…
My colleagues from the Arm Digital Signal Processing (DSP) software team have introduced a Python wrapper for the CMSIS-DSP library that is compatible with NumPy. The CMSIS-DSP library is a rich collection of DSP functions that Arm has optimized for the…
Dear all,
Most mobile phones contain an ARM-like application processor AP for general user applications and a base band processor for the radio software stack, could you please elaborate on the following:
1. Do the AP and the baseband processor communicate…
Hi,
I'm new into mixing C and ASM on Cortex M3 using keil, here is the question,
Suppose that a function tries to access some memory that is not in the system, something like this, the system crashes with the hardfualt exception, so my question is…
I am using Keil uvision version 5.25 for development of project using STM32L151CB ARM cortex M3 microcontroller. As i am beginner for this. So i have download firmware of RAK5205 development board from git. But i am getting error "Error .\Objects…
Hi to all team members,
I am using Wis trio Lora tracker RAK5205 board with STM32L1 ARM Cortex m3 low power microcontroller for development purpose.
I have install latest Keil uvision 5.25 and also update all packs. But than also i am getting error as…
I am using Cortex-M series microcontroller and wrote my own FIFO implementations. Is there any CMSIS libraries that support common data structures like FIFO so i don't have to write my own? Obviously FIFO is not difficult at all to implement but if there…
I am trying to build software(esp device driver support) for a particular Cortex-M33 microcontroller offering from my company. I have a few questions about software IDE and tools supported by ARM:
Hello,
I'm a fresh guy on the KEIL, and here are 3 general questions, thanks any masters helping on it.
1. Is it possible to build a library by keil which could be linked in another project, while in this project, the device CPU is different w/ the…
Trying to look for an IDE that support FVP for the Cortex M7. Does DS-5 support it? If not, what are my options?
I am exploring the CMSIS DSP library. After playing for a while I have 2 questions:
-in case I want to evaluate DFT over bigger data window than 4096 I would need to provide Twiddle Coefficient array for particular size and make aplit the data set…
It appears the CMSIS math library for Cortex-M7 is missing arm_sqrt_f32(). I ran objdump on the library and arm_sqrt_f32() is missing. The library contains arm_sqrt_q15(), arm_sqrt_q31() but does not have arm_sqrt_f32().
CMSIS_5/CMSIS/Lib/GCC/libarm_cortexM7lfdp_math…
Dear All,Currently now I'm trying to undersatnd the relationship between startup_ARMCM3.s and gcc_arm.ld from Cortex-M3 of MDK5.the following codes are refered from Cortex-M3 of MDK5 example code.
1 //---startup_ARMCM3.s----------// 2 3 __HeapLimit…
Hello, I am looking for information about programming an ARM M4 firmware to basically broadcast serial information to a bluegiga WF121-A wifi module. My device will receive 2 serial inputs and I want the serial input packets to be sniffed and broadcasted…
I have downloaded Keil 5.24a, and Arm cortex-M legacy support, when I want to create a new project, in micro selection step, in Software Packs there is no STM32F407VG micro, but there is STM32F407VGTx micro instead, and I don't know what is the difference…
Hi all,
I am a master student in germany and doing my thesis currently. I wanted to measure CPU cycles using emulation/simulation for some code that is running on a cortex m4F processor based board. I had QEMU in mind at initial but it turns out it doesn…
I have to port a solution i am working on for Cortex-M4. I need to build,profile and later optimize.Can somebody please suggest which all tool will be helpful.
Hello, so I was working on Tiva C launch pad and coding using this environment, I noticed that this compiler has major difference from others so I will list some of the problems I faced as questions hoping someone would answer : 1- In case I need to use…
I would like to know if any of the compilers/libraries for Cortex-M support the std::thread type (from the <thread> header) or if there is any plan to support that in the near future. I am interested in both Keil MDK / DS-5 or GCC for ARM. Thank you!…
Can we add RealView Development Suide Plug in to DS-5 ide and debug ARM cortex M devices like we did in eclipse ?_?
I am using an Atmel SAMD21 MCU that is based off the ARM Cortex M0+. I am programming it via the Arduino IDE. I notice that the Arduino IDE includes the CMSIS library. Below is an example call from the library to setup a generic clock that compiles…
Hello, some time ago I started to play with CortexM4,
I bought a Discovery Board with a STM32F407VG in order to be programmed with uVision from Keil.
I am developing a project where the money is very restricted, that's why I was using a free licence from…
Hi
I tried to implement AES-128 on LPC1112, using AN11241: AES encryption and decryption software on LPC microcontrollers, but I can't find a function for initial vector. How can I input the IV for AES CBC?
I want to communicate with an android app…
DSP concept guys say, that it's time to use ARM Cortex-M microcontrollers for embedded DSP systems, so I looked at CMSIS library of filtering functions, and found that it is of block type.
As you know, the most painful feature of ARM Cortex-M…
I'm evaluating Keil as a possible replacement for my existing IDE for embedded ARM applications. As a test case, I'd like to see how quickly I can get a simple app running with at least 6 serial ports and a file system. My question is whether anyone…