Ask questions, find answers, and share insights on STM32 products and their technical features.
Posted on December 31, 2016 at 19:56Hi all. The standard SDMMC bus speed is 24MHz which, on the STM32F7 series, is derived from the USB PLL48 clock source / 2. If we want to operate the SD card in High Speed mode, which has a maximum bus speed of 50...
Posted on August 30, 2015 at 16:53Hello,I've been working on a project on my STM32F4 Discovery for a few weeks now and it's been working fine. Today I connected a OV7670 camera and after uploading the code the discovery stopped working after a while...
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...
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...
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...
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...
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...
Posted on December 30, 2016 at 02:30Cortex M0 is an ARMv6-M processor. (using an '091 with CubeMX 4.18, Keil uV5 )I am trying to initialise the DMA Circular buffer configurationI cannot find an implementation of the Circular buffer.in the examples, ...
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...
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...
