STM32 MCUs Products

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Forum Posts

Debugger doesn't halt at main()

Posted on December 30, 2016 at 06:03Hi,I am using STM32F4xx based custom board and IAR as an IDE for development. Till now everything works fine, but after adding few lines of code the debugger has stopped working i.e. it is not halting at main(). I...

dj_v14 by Associate II
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Resolved! Understanding SPI on the STM32F3

Posted on December 29, 2016 at 19:44Hi, I have a NUCLEO-F303 board which I would like to use to communicate to two devices using SPI. The NUCLEO would be sending and receiving data to and from the devices via MOSI and MISO.Looking through the datash...

Problem with SPI in External ISR

Posted on December 31, 2016 at 07:35HelloI'm working with stm32f4 discovery board.I can make spi dma communication with a slave device in while(1) loop without any problem.But I have problem to make spi communication with slave device in external in...

I2c peripheral adding address byte ?

Posted on December 31, 2016 at 00:25Using I2C peripheral on F0 micro.  When I restart the I2C bus it sends the slave address plus an extra byte then my data, after that first transmission it doesnt send the extra byte, just the after the first Resta...

How to calculate delta T ??

Posted on December 29, 2016 at 11:57I have a 10DOF sensor that is calculating 3 angles(roll,pitch,yaw). I need to know how can i calculate the time of execution of my code so i can get the delta t, like in arduino we used as i remember a function ca...

KalmanFilter C code error

Posted on December 30, 2016 at 12:04 I am using stm32f discovery board. I am trying to fuse Acceleromoter and gyroscope using KF. And here is a code i included that suppose to do this. #ifndef _Kalman_h #define _Kalman_h struct Kalman { /* Ka...

WIFI on STM32F

Posted on December 30, 2016 at 18:59looking at the STM32F103REY6 chip on the SPWF01SA, it has 3 SPI's. Are all 3 of these available to be programmed (I don't see them mentioned in the datasheet) or is it possible to use one of the SPI's MOSI/MISO,SC...

Resolved! Forcing static initialized arrays into FLASH (not in SRAM)

Posted on December 29, 2016 at 17:57THIS ISN'T A QUESTION - IS A RESULT.I was having issues getting some static arrays to stay in FLASH, not SRAM. Since they NEVER change, allowing them to load into SRAM just means the exist in both flash & SRAM (ak...

[BUG] FatFS + SDIO(DMA) L4

Posted on December 28, 2016 at 21:45Drivers supplied with CubeMX don't check if data that fatfs tries to write is properly aligned (32bit) this results in misaligned address send to DMA controller which is forced to be realigned and results in wrong...

ChrisH by Associate III
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