Hello,
I wanna know if global interrupts are enabled or not.
In ARM compiler,__disable_irq() function returns 0 if interrupts were disabled or not, but on GCC based compiler, this function is declared as void.
Which register should I take a look for bit…
please help me resolving this issue during buil process
arm-none-eabi-gcc -DUSE_STDPERIPH_DRIVER -I"H:/embedded systems/arm projects/template_project/inc" -I"H:/embedded systems/arm projects/template_project/../STM32F0xx_StdPeriph_Lib_V1.5.0/Libraries…
I'm interested in learning about what's under the hood, or what's hidden from you by an IDE, by which I mean, compiler, linker, makefiles - that type of thing. I have a few specific, if potentially misguided questions about what I think I should be doing…
I am working on Keil uVision4 and just started learning ARM Cortex-M3 assembly. Executing a program but have this error during the build process:
.\mycode1.axf: Error: L6221E: Execution region ER_RO with Execution range [0x00000000,0x00000038) overlaps…
Hello everyone, I'm an Italian student struggling with the first project on a microcontroller MK10DN512ZVLL10. Someone can support?
When I try to execute the Blinky program
On menu, select Debug -> Start/Stop Debug Session
I get a dialog box:
JLink - Cortex-M Error
No Cortex-M Device found in JTAG chain.
Please check the JTAG cable and the connected devices.
The LPC-Link2 board is connected…
Hi Experts,
Does the stack memory protection or some other similar feature is deployed in the CMSIS RTX RTOS ?
Regards,
Teachguyz
My simulation environment is: uVision 5.14 + Fast Models 9.2
The fixed virtual platform is this one:
C:\FastModelsPortfolio_9.2\examples\FVP_MPS\Build_Cortex-M4\FVP_MPS_Cortex-M4.sgproj
I want to write a program to control the 7-segmenet displays. By Fast…
Hi,
I am trying to understand the startup code and assembly language (more for learning and not for a specific project) for ARM Cortex M4.
I made a project in KEIL with just one assembly file and added a stack declaration and a vector table there. It was…
CMSIS DSP is a great tool which allows Cortex-M4 devices to have a great app field range, even replacing some general purpose DSP sometimes. However I am missing some "simple" new functions that could enhance, even more, the use of it.
For example…
Hi,
I don't understand how to program the flash memory. While the program is running via a special sequence of buttons, a function that resides on RAM is called, so here I would to erase all flash and reprogram it through IAP.
Now when I erase the Flash…
Hi Experts,
I would like to remove and customize CMSIS RTX for the Cortex-M series micro-controllers to save some code space and may be possible optimization for hobby stuffs. For illustration, removing an RTX OS feature which I am not going to use. In…
Hi Experts,
I went through the CMSIS RTX code for Cortex-M and bit curious on the features & configurations.
In that I could see osFeature_MainThread macro is defined for the requirement of main thread feature.
What is the practical use case (merits…
Hi Experts,
I went through the code flow of CMSIS RTX RTOS. I am excited to know the real engineering done on building the RTX RTOS towards Cortex Microcontroller series. It can be some parameters like task switch time, interrupts latency time, etc. Any…
Hi Experts,
What is the special feature in the CMSIS ARM RTX RTOS compared to other commercial RTOS which makes the integration smoother and gives best performance ?
Hi guy,
I'm using ARM STM32F103RC, Cortex M3.
when I compiler the code with this order:
//GPIO structure used to initialize port
GPIO_InitTypeDef GPIO_InitStructure;
//Enable clock on APB2 pripheral bus where button…
I'm using the gcc toolset, and had hoped to be able use this functionality, however all of the documentation seems to state superseded or suspended.
I'm trying to target an STM32F4 processor.
Any pointers to how to do this…
Hi
I am unable to find any documentation on how to add library in eclipse based IDE. Presently I am using Freescale's CodeWarrior and I want to add the CMSIS's DSP Library in that. Thanks in advance
Kind Regards
Amit Kumar
Hi,
I am currently trying to use the CMSIS DSP library for finding the frequency bin. I have used both CFFT and RFFT function to compute the frequency bin of input signal.
My input data is of 128 samples which content only real part (complex part…
On ARM official website, I saw some description about debug method by Freescale Vybrid.
It sounds like below (No JTAG or SW connection):
[PC Host] <--- USB wire ---> [Freescale Vybrid]
So it seems there is a bridge inside Vybrid, which…
Hello,
We have received a question on ARM Facebook I think this group could answer.
Is there any ARM Cortex-M microcontroller simulator available for free?
The poster seemed most interested about Proteus Virtual System Modelling I believe.
I am a software engineer moving to an embedded firmware project using Keil and the Cortex-M0. Southern California would be the ideal location to attend the training but I can travel if necessary. Any online classes would work too.
Dear All,
Can I have the step by step, how to create a ( CMSIS library ) project using uVision 4 Keil IDE
My Project board is STM32F407 vg discovery board
Actually I need following instructions acceptable project
GPIO_InitTypeDef GPIO_InitStruct;
Please…
I'm currently trialing the Keil uVision compiler V5 with the ST demo board MCBSTM32 (uses an STM32F103R8).
The Keil IDE indicates that a set of the inline assembler definitions are incorrect.
__ASM uint32_t __get_PSP(void)
__ASM void __set_PSP(uint32_t…
Hi
I am using a ARM GCC tool chain 4.7
My platform is a Cortex M3 based platform and we use a low power state
In this low power state
voltage of CM3 is reduced to 1.08 and all peripherals except RTC is put in self retaintion.
RTC and a GPIO pin are only 2…
