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STM32L4R7ZIT exiting / returning from STOP1

Hello,I'm trying to understand which steps need to be taken when exiting the stop modes with STM32L4R7ZIT.Say that we are in stop1 mode, RCC->CFGR-STOPWUCK == 0 (MSI). Before entering stop1 we were clocked by HSE 12 MHz via the main PLL into 120 MHz ...

NArnd by Associate III
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How to use JSON library in st micontrollers

I want to use JSON library to send customized data to serverWhere i can get the library?Micro controller connected with modem (sim900a)Motive is to how to send Json formatted data from st controller to server.*My controller is :STM32F042G6

Ss.61 by Associate III
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  • 5 replies
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printf does not work properly on stm32f407

I am using stm32f407 discovery board. My printf function works fine but when it comes to printing numeric values HardFault(Bus fault) occurs. It prints alphabets perfectly fine but cant print numeric values. e.g. printf("UFSR=%x, *pUFSR);  It prints ...

Krunal by Associate
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  • 1 replies
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Resolved! Hardfault in __libc_init_array with STM32L072

Hi,I'm working on a STM32L072 project, with an environment composed of arm-none-eabi-gcc compiler version 10-2020-q4, make and Eclipse IDE.I'm having trouble with a hardfault occuring in libc_init_array function call in startup file. Using disassemb...

0693W000006Hx7xQAC.png 0693W000006HxLGQA0.png
OCout.1 by Associate II
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  • 6 replies
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STM32F103 Reduce VBAT Current

My datasheet (STM32F103VC) states the Vbat current draw is 1.4uA. Is there a way to reduce this? I only need the backup domain for RTC/LSE. I know there are many backup registers as well. Could I turn these off to reduce current draw?

nmamore by Associate II
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  • 4 replies
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Hello. I modified the .ld file with the aim to include another .ld file using INCLUDE "..\Mem_aux\MEM_0.ld", but at the beginning it's works, but when I modified the second file the changes didn't modify the memory layout.

There are any way to each time that I build the project, the changes made at the second linker script will be done? The main linker script is STM32F746ZGTX_FLASH.ld, and the other is called MEM_0.ld, and it's in another folder inside the project. Tha...

RExpo.1 by Associate
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  • 3 replies
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