Ask questions, find answers, and share insights on STM32 products and their technical features.
Posted on January 13, 2017 at 13:29Hi, i have problem, i can's understand, can i connect STM32F407 MAC(RMII) to MAC(RMII) KSZ 8863 without PHY level. In STM datasheet shown only RMII->PHY connection. I use lwIP lib, but it need PHY level. What can i...
Posted on January 15, 2017 at 21:27I am working with a Nucleo L031K6 board and my application showed strange behaviour that I could finally track down as two C variables sharing the same memory location....Not being a specialist in neither C nor the...
Posted on December 10, 2016 at 22:07I am testing the microSD card. The weird thing is that it works well in debug mode, but doesn't work in normal mode.I set the breakpoint to a line at the very end in debug mode, before which the operation of micro...
Posted on August 02, 2016 at 18:05Please add GNU ARM Eclipse, with a reference to http://gnuarmeclipse.github.io, to the list of free, open source, development environments with strong support for STM32 devices.Regards,Liviu #free-development-ide...
Posted on January 15, 2017 at 08:37Hello,I'm currently trying to write a library for the stm32f4 to output dmx via the uart. With other mcu's I've done this by generating the required start code etc by changing the port baud to a specific speed, sen...
Posted on January 14, 2017 at 14:30I have stm32 gpio pin connected through 5k resistor to the 12V supply. What voltage can I expect on the pin depending on the gpio configuration and processor model? Is there any internal clamping in the MCU?Do I ne...
Posted on January 14, 2017 at 20:38HelloIt is mentioned in the stm32f303vc that it's opamp GBW is 8, but as i measured in the lab, the opamp output (i tested opamp 1&2 in follower mode) can't follow a sine wave above 700KHz in frequency, i.e output ...
Posted on January 14, 2017 at 15:09Hi allI am wondering if I could use the 32K memory.If somebody know it, pls tell me how to do it.Because 96K bytes isn't enough for me.Thank you all in advance.
Posted on May 19, 2015 at 22:07Functions in usbd_cdc.c which return values of USBD_StatusTypeDef as defined in usbd_def.h (e.g USBD_OK) are defined as uint_8.This causes IAR to issue ''enumerated type mixed with another type'' errors when properly t...
Posted on November 03, 2016 at 09:28I have a problem (I think) with PA6 in an STM32F303VCTx using it as an analog input. This pin is shared (along with other things) with opamp2_vout and even though I have not enabled any opamps, I think what I'm re...
