Ask questions, find answers, and share insights on STM32 products and their technical features.
Posted on April 11, 2018 at 22:57Hello, I am wanting to change the clock speed during runtime. I have an area of the code where I want to enter a lower power mode, shut down all peripherals, and wait for an external interrupt to occur. The specific ...
Hi I am using the STM32L433 100 pin which has the internal 2.5v vref buffer for the ADC. I am getting readings, not accurate, from the adc . Looking at the data sheet the internal vrefbuf is tied directly to the VREF+ pin, and when I measure that pin...
1) Please mention how to Count pwm pulse for drv8825 stepper motor drive interface for precision movement .2) Which is the best method to control stepper motor i a) built-in pwm b) toggle an LED with microsecond delay.
i used isochronus transfert , and uncompressed video form i have attached a usb trace thanks
Hello, Everyone!I found issue with using my LCD (via i8080 mode) with FMC. My display requires HOLD after DATA set from 15 ns time. But in all FMC modes HOLD fixed and it 1 FMC CLK. For my STM32H743 at 400 MHz - I set FMC clock 200 MHz. It is HOLD = ...
Posted on May 22, 2018 at 18:44Hi to all.I'm trying to use I2C peripheral of STM32F103C8T6. I'm using a BluePill board. First of all, I know that this problem was published in other forums and so, but after trying other solutions, I didn't find the ...
Posted on April 30, 2018 at 18:19HiI'm trying to write some test data to SD card by DMA with Nucleo-F767Zi.Every 100ms I write 20 blocks to SD card by calling the HAL_SD_WriteBlocks_DMA() method.I have a counter to record how many times the HAL_SD_W...
When I make a post, I have to click at least three links to get back here. Hitting the back button only brings me to some sort of "ping timeout" page. Please either increase the timeout, or provide links back to the top. Links back to anywhere fro...
Hi,I am measuring a STM32L4A6VGT board power consumption. From the datasheet, in standby mode should be 120nA while I got the value @ 19 mA (last Friday). The FW does nothing, in main after MX_XXX init, call HAL_PWR_EnterSTANDBYMode(). Now I am gett...
Posted on September 21, 2017 at 09:26Hello!I use the microcontroller STM32F205ret6, STMCubeMX v4.22.0, Firmware vSTM32Cube_FW_F2_v1.6.0. Configured to work with SD card in SDIO + FatFs mode without DMA. Recording to the card comes at a speed of 2.5 ...
