Ask questions, find answers, and share insights on STM32 products and their technical features.
Posted on March 29, 2017 at 12:41FreeRTOS + STM32F4I have been hitting a usage fault with CFSR invpc bit set which according to documentation means that an error occurred returning from an exception and that the stacked pc indicates the faulting ins...
Posted on March 29, 2017 at 10:32What must I do from IAR to make a file which will properly convert to a .dfu file which will burn onto my board using the DFUSE demo - realizing that we are mapped to the ICTM interface?We are using the STM32 32-bit ...
Posted on March 24, 2017 at 12:35(ref: AN4759)Configuration 1 - able to achieve ~1ms but not exactly 1 ms.Configuration 2 - not able to achieve 1 ms but successfully achieved 1s as the least period and can program in multiples of it.
Posted on March 14, 2015 at 22:11Hi,I am using a Decawave EVK1000 and would like to create a USB VCOM port to my PC.I have never made a USB driver before and have downloaded the USB FS library for the STM32F105.From the library I see there is the De...
Posted on March 28, 2017 at 23:39On my '407 I am using TIM2 to trigger a series of ADC conversions. The connection between TIM2 and the ADCs is TRGO.I have set up the time base for TIM2 to be 84MHz and TIM2 has no prescaler and a counter period of 2...
Posted on March 28, 2017 at 19:35I am trying to execute the example program given by ST for firmware update using USB, I'm able to download and upload the binary image but the jump is not working properly. After the new program has flashed onto new ...
Posted on March 24, 2017 at 16:35I have a NUCELO board with STM32F767ZI.I have read that there are http://www.st.com/content/ccc/resource/technical/document/errata_sheet/group0/23/a6/11/0b/30/24/46/a5/DM00257543/files/DM00257543.pdf/jcr:content/tran...
Posted on March 28, 2017 at 16:31Is it possible to connect an external eeprom to the SPWF01.21 module? The stored eeprom data will be very small >1K and only serve to remember GPIO high or low settings of the modules STM32F103 core that an end user ...
Posted on March 28, 2017 at 10:35Hi,I have a STM32F334 with a cylindrical watch 32.768kHz xtal connected as a LSE oscillator. LSE now works. Folks on the forum, were kind enough to point out to me about possible PCB related issues.Originally, I've h...
Posted on March 27, 2017 at 14:16Hi,I'm using a STM32F429 operating at 168 MHz. I want to read in 16 GPIO pins (one port) via DMA. I'm curious what's the maximum input rate is, for a certain number of consecutive level changes (read out of an extern...
