Ask questions, find answers, and share insights on STM32 products and their technical features.
Posted on July 31, 2015 at 13:38As written in Ref.Man. DMA stream x FIFO control register (DMA_SxFCR) (x = 0..7) Address offset: 0x24 + 0x24 � stream number Reset value: 0x0000 0021 It is true only for DMA1 streams, but for DMA2 reset value...
Posted on August 03, 2015 at 10:29hi all i use an external SDRAM in my board. i want to use STEmwin in my program but when i use one of Segger sample in my program an error appear and tells that there is not enough space ( some thing like this''no s...
Posted on August 03, 2015 at 11:30Hello,I need to compute some values, for which I should use asinf() and sin() functions. I alreadyused math.h, but I am wondering if there exists some speed optimized library for this CPU,which can be used? #stm3...
Posted on August 03, 2015 at 10:07Hello,I'm using the STM32F405 microcontroller.For my application/calculation I need to store temporary a lot of data, which exceed my SRAM.To expand it, without using an external SRAM, I had following ideas:- Use th...
Posted on August 03, 2015 at 13:35Hi,I am using STM32f3 ARM cotex3. I am working on Firmware Upgrade where one of my code executes from 0x08000000 and other i am locating my 2nd application at 0x08010000 . I have used two method one with the scatte...
Posted on May 21, 2014 at 14:51On the board is STM32F427ZGT6 with SWD connection used alog with ULINK2 and KEIL 5.1 uVision.The SWD connection is not recognized withot SWJ checked on, since at reset 32F427 switches to JTAG communication. The test pr...
Posted on August 02, 2015 at 15:12Hi, I'm using the stm32f407i . BOOT0-tied to GND by 1k resistor, BOOT1 tied to VDD by an 24k resistor NRST connected by a 100nF capacitor to GND,PDR_ON is floating. We assembled several cards: part of it operates we...
Posted on July 30, 2015 at 08:50Hello friends.I'am working on a project using STM32L052 and Nokia5110 display. It is a temperature controller. It will utilize RTC. It will work from two AA batteries.The question is what is the best way to change the...
Posted on August 02, 2015 at 23:46 I configured `gpio` and `exti` handler configurations for 8 pins `(PD8,PD9...PD15)` each has separate configuration functions and it's working well. Can i do the configurations at just one function? Some lines ...
Posted on May 17, 2015 at 18:38When I set RTC date , rtc counter do not change. when turn on again my board date to 2000/1/1 Stm32f103zc + cube
