Others: STM32 MCUs related

Need help storing variables in internal flash Nucleo32-L'"ékc

Hi all, I'm discovering 32-bit microcontrollers for the first time. My project is almost completely working (using Timer 1 in input capture mode and all the rest is GPIO related). I want to save one variable so that it survives power down. Because th...

IAR - Redirect printf to UART and fprintf to SD card FAT File system

I am using IAR EWARM 9.10.2 and would like to redirect printf to UART and fopen/fclose/fprintf to SD card hosting FAT File System(R0.12c (March 04, 2017)). Any guide on how to do redirect io streams on IAR would be helpful.Thanks in advance.

Question regarding alignment in keil scatter file.

I'm quite confused when it comes to alignment.I opened linker script to make some modifications, so that I can fit two binaries into flash. (Relatively new to embedded, but frankly I learn fast).I use stm32f091Rx. Which has 256kB of flash memory.A li...

Migrating code from IAR to GCC: __no_init, __ramfunc

Hey,I am trying to modify some compiler/linker directives from IAR to GCC. I think I already managed to solve the first two obstacles:1 - In order to not initialize a variable saved in some register:static volatile __no_init uint32_t SystemInfoFlags;...

I am using EEPROM_Emulation to write flash and used as eeprom, It works fine . I can read and write but porblem is i can write(or update) it 3 times 4th time it hangs and i can't write it . what can be problem.

while launching new project, libraries file does not exist

Hi everyone, I'm tryin to learn how to use stm32f4 boards. But I have a problem when I create new project libraries file doesn't exist as it was. I did not see problem like this before while using stm32f1xx series, and also there is a warning like th...

STM32F4 USART_Receive block usage problem in Simulink

Hi everyone,I am trying to read a laser sensor through UART of STM32F4 inside Simulink. The laser sensor's refresh rate is 10 Hz approximately but it does not give the data periodically. I am using UART Interrupt for reading action. There are two cas...