Search results for "STM"

Changing return address of exception

I am using olimex stm32 board. It has cortex-m3 processor. For my project, I require to change return address when processor is executing exception. I know that it is stored in stack, But where in stack? It is always

solved. I am writing the code to change return address which worked for me. This code is for olimex stm32f107 board. asm( "TST LR, #4;" "ITE EQ;" "MRSEQ R0, MSP;" "MRSNE R0, PSP;" ); asm("mov %0, r0" : "=r"(lraddr)); nxaddr=lraddr[12]; lraddr[12]=NEW

µC & Digital Electronics ·sunil gandhi ·2012-03-10 18:12 ·7 Replies

eLua on STM32F4discovery

Hi, i'm trying to run eLua on a STM32F4discovery board. I downloaded and flashed this image successfully: http://dd.homeunix.com/home/space.php?uid=1&do=blog&id=90 http://dd.homeunix.com/home/attachment/public-File/elua_lua_stm32f407vg

Hi; Does this mean you have done a STM32F4 build of v0.8 that supports ROMFS? Would you be willing to post the binary? Thanks, CZ

µC & Digital Electronics ·Thomas M. ·2012-11-26 22:40 ·2 Replies

STM32F407 SPI reads wrong data

Hey, I'm encountering a strange problem with the hardware SPI of the STM32F407 [2] (discovery board). I'm trying to communicate with an UM7 IMU [1] over its SPI interface. When I try to read its firmware revision, I receive ASCII 'T71E' instead of the expected 'U71D'

E'. To me at least it looks like the data is transmitted correctly by the UM7, but somehow the STM reads the last bit incorrectly. The behavior is reproducible, i.e. the first and last byte always have the last bit flipped. Are there any pitfalls for the STM SPI I should aware of? Or am I doing

µC & Digital Electronics ·Mirko ·2016-04-27 13:05 ·1 Replies

SPI communication between two microcontrollers

Hello everyone, I am trying to make communication between an STM32F3 microcontroller and a custom board baser on PIC microcontroller using SPI protocol. The STM32F3 acts as a Slave and the custom board as a Master. The clock is set to 10 MHz. I’m using NSS hardware

µC & Digital Electronics ·jeorges FrenchRivera ·2018-01-29 12:34 ·13 Replies

STM32F0 Discovery Port C Pin 1 and Pin 2 problem

Hello Folks, I tear my hair out over this. I have a STM32F0 Discovery board here and i would like to get all 16 bits of PORTC high. Most of the pins do what i expect them to do, but PC1 and PC2 dont. They stay low out of what ever reason. I am a bloody newbie

I am chewing on this problem already since a week and ready to give up on it. [c] #include "stm32f0xx.h" #include "stm32f0xx_rcc.h" #include <stm32f0xx_conf.h> #include "stm32f0xx_gpio.h" #include "diag/Trace.h" //#include <stdio.h> int main() { GPIO_InitTypeDef GPIO_InitDef;

µC & Digital Electronics ·PeterP ·2015-04-08 03:38 ·0 Replies

STM32 GCC problem writing to flash bank 2

I am developing a project running on an STM32 target, using Eclipse, openOCD and CodeSourceryLite 2009q1-161. Part of the design is that the user should be able to upgrade the code in flash, so I partition it into a bootloader and two equal

flash upgrade functionality on optimized code. To allow for future growth I have upgraded to an STM32F103xG, which has 1M of flash configured in two banks. I have been able to continue debugging, and I can run the flash upgrade into either bank when in debug mode. However, if I build the code at

µC & Digital Electronics ·Alan Rouse ·2012-09-20 14:59 ·2 Replies

mapping the exact input to the output

#include "stm32f0xx.h" #include "stm32f0308_Discovery.h" #define in0 GPIO_Pin_0 #define in1 GPIO_Pin_1 #define in2 GPIO_Pin_2 #define in3 GPIO_Pin_3 #define in4 GPIO_Pin_4 #define in5 GPIO_Pin_5 #define

µC & Digital Electronics ·aadhii88 ·2015-10-01 21:13 ·7 Replies

QSPI - STM32F7

Hello friends. I have a small problem with my QSPI on STM32F7. I connect memory on this pins. PB10 - CS flash PF8 - IO0 (SI) PF9 - IO1 (SO) PF10 - SCK And I call in main: [c] int main(void) { /* init NVICcm */ LL_Init(); /* init system clock

do you know when exactly you Need to check the WLE Bit? Assume you're using your Code for different STM32's with different clock Settings or something like that? That's the reason why I do it like posted above (multiple checks with timeout) makes more sense than to check the WLE just once. The same

µC & Digital Electronics ·Petr Klaun ·2018-02-07 13:25 ·15 Replies

Problems with Yagarto/eclipse/gdb with JFlash Server

Hello, i am trying to connect J-Link with STM32L152D-EVAL board kit as a target device b ut i am getting the error (Error: STM32: connecting to CPU via connect under reset failed). Please give me some solution for this problem. thank you

µC & Digital Electronics ·Peter Ross ·2016-07-09 15:30 ·7 Replies

how can I read protect my STM32F4 with eclipse + openOCD JTAG ?

hello forum , I am using Eclipse + openOCD JTAG for downloading and debugging my aplication into STM32F4 after I finish my project I want read protect my code so that it is not stolen question : how can I read protect my STM32F4 with eclipse + openOCD JTAG thank you

Please have a look at this chapters in the reference manual of the stm32F4xxx microcontrollers (RM0090): 3.6.3 Read Protection (RDP) 3.6.1 Description of user option bytes 3.8.3 Flash option key register (FLASH_OPTKEYR) And after that you should read in the documentation

µC & Digital Electronics ·magnetron ·2013-05-03 20:12 ·1 Replies

yagarto example project for STM32F100C4 chip

Hello, I'm new user of the yagarto tool-chain. The example project for STM32F103 works well for me. I'm going to move to simpler target chip STM32F100C4. It should be the Low density Value Line device (STM32F10X_LD_VL). I'm not sure how to setup-up project or how to modify linker script and start-up code for that chip. Please can someone send me a example project for STM32F100C4 for yagarto or any advice how to do it please?

µC & Digital Electronics ·M. G. ·2011-10-26 12:29 ·0 Replies

Free STM32 hardware on the SPS in Nuremberg

etc.). Only the Wifi version is no-longer available. On that registration it is said that a free STM32 NUCLEO board is given away for free on the stand. BTW I wonder why this combination of STM32 Nucleo base boards and expansion boards is not mentioned in this article https://www.mikrocontroller.net/articles/STM32 Many thanks Alex

µC & Digital Electronics ·Alexander ·2016-11-19 15:43 ·0 Replies

OpenHR20: Firmware for Honeywell Rondostat HR20E

and the communication is working now! I currently implement my own stand-alone master using a STM32 with cortex-m3. I have running a lwIp with udp server and webserver. The plan is to write a android app soon, to replace the webserver interface. But that's future.. Currently I got stuck while

µC & Digital Electronics ·Mario Fischer ·2022-11-26 13:30 ·1121 Replies

STM32 stop mode wake via usart

The stm32 MCU wakes up with the internal 8Mhz oscilator and it takes some time to switch on HSE. Due to project-planning issues, does anyone know if it's possible to set a stm32 MCU in stop mode and force

transmitted USART data? see also: https://my.st.com/public/STe2ecommunities/mcu/Lists/ARM%20CortexM3%20STM32/Flat.aspx?RootFolder=%2Fpublic%2FSTe2ecommunities%2Fmcu%2FLists%2FARM%20CortexM3%20STM32%2Fwake%20up%20from%20stop%20mode%20on%20usart%20interrupt%20do%20I%20need%20to%20configure%20EXTI&FolderCTID

µC & Digital Electronics ·R3n3 ·2011-01-16 18:40 ·0 Replies

problem using adapter Olimex tiny-h with OpenOCD v0.4

Hi, I'm trying to get a fresh ARM-USB-Tiny-H adapter to program and debug my STM32-P103 board via OpenOCD v0.4 under Ubuntu 10.04. The configuration works fine with my older ARM-USB-OCD but with the Tiny-H, I always get this error: "Error: unable to set latency timer: 17"

10.04 on Asus Eee PC (1Gig RAM, BNL Single Core) Interface: Olimex ARM-USB-TINY-H Target: Olimex STM32-P103 Evalboard Any clue what I might be missing? Gregor -- If its not playing with Tux, it's worth nothing.

µC & Digital Electronics ·Gregor Surname ·2010-06-04 22:07 ·1 Replies

RTEMS or FreeRTOS on STR712FR (ARM7 TDMI)

uClinux and RTMS offer a lot of more functions and drivers. But it's not that difficult to extend the STM STR7-StdPerphLib with synchronisation-code (e.g. mutexes) in case different tasks/threads access the same peripheral. Using the STM-STR7-Library as base should save some time.

µC & Digital Electronics ·Marchaudon Romain ·2010-04-28 10:07 ·5 Replies

Embeetle IDE free for all users, now supports Blue Pill and more.

and developed a visual debugger. Just recently, Embeetle IDE integrated the Blue Pill board. The STM32 Blue Pill is a 32-bit Arduino-compatible development board that features the STM32F103C8T6. A member of the STM32 family of ARM Cortex-M3 core microcontrollers. The STM32 Blue Pill board has nearly

µC & Digital Electronics ·Embeetle ·2023-07-23 18:00 ·0 Replies

AVR Transistortester

can optionally set 5v on GPIO, which iirc would be of benefit. I saw other project that use the STM32 to lesser effect and seeing that the Flipper Zero uses the STM32WB55, I was curious if that could be leveraged too. welcoming any input, even if it's confirming this as a foolish idea.

µC & Digital Electronics ·Dominic M. ·2023-08-25 06:57 ·3 Replies

embedding C source in the disassembler window

Anglia Electronics kindly sent me an Eclipse version of the STM32demo project. It includes a custom makefile, so it doesn't use any outside resource such as Solaris to create the makefile. I am trying to create my own project to emulate this with good success

system, because it now fails at the end of compilation with the message 'cannot open map file obj\stm32demo.map' I am now getting extremely frustrated with Eclipse. I want to use it as a tool for developing a project to run on embedded hardware, but I am spending more time trying to fix the tool

µC & Digital Electronics ·Alan Rouse ·2009-03-25 23:02 ·10 Replies

Topics in electronics for FPGA Engineer

are quick circuits and not cheap at all compared to a simple microcontroller like for example the STM series. For $25, you can get a microcontroller being able to aquire, process and recreate audio signals in realtime with existing algorithm libraries like VisualDSP++ rapidly. For $25 you can get

are quick circuits and not cheap at all compared to a simple >microcontroller like for example the STM series. For $25, you can get a >microcontroller being able to aquire, process and recreate audio signals >in realtime with existing algorithm libraries like VisualDSP++ rapidly. Probably you

FPGA, VHDL & Verilog ·Alexander Alexander ·2017-11-03 14:24 ·22 Replies

Networking Eclipse projects

'Include' containing .c and .h files respectively. There is an additional file in 'Include' named stm32rom.ld which contains the processor characteristics needed by the linker. There is a third folder named 'obj' for the compiler and linker output files. The makefile on Server invokes the compiler

/stm32rom.ld: No such file or directory". I can't understand this, since the -T command format is exactly the same as the -I and compiler command formats, which are executed correctly. The makefile

µC & Digital Electronics ·Alan Rouse ·2011-05-10 12:20 ·0 Replies

va_args, printf and DMA memory problems

past few days as I try to understand why and what is going on... So here it goes: Current config: stm32f407VG (same as stm32f4 discovery) I set up a project using the default linker and startup files from www.onarm.com. Init the ADC & DMA's [code] ADC_CommonInitStructure.ADC_Mode

µC & Digital Electronics ·Kevin none ·2012-10-29 20:09 ·4 Replies