Ask questions, find answers, and share insights on STM32 products and their technical features.
Posted on September 05, 2013 at 16:24hello i designed an eval board base on stm32f107RC myself and i want to program it by using dfu bootloadert then i should download the bootloader file(IAP) from this site so i did this .now do i have to put a 25M...
Posted on September 05, 2013 at 18:30Hi,I am usingSTM324x9I-EVAL, which has a 32F439 chip with Keil tools chain and StdPeriph Lib, 1.2RC2, FreeRTOS 7.5.The following is the section of interrupt code.void USART1_IRQHandler(void){ portBASE_TYPE highe...
Posted on September 04, 2013 at 06:10 Hi All, I have a hall effect sensor outputting 0-5V square wave. This is connected to TIM2 CH1 (PA15) on STM32 M4. I am having problems converting this output to RPM value. The output varies from...
Posted on September 04, 2013 at 10:39Hi I'm trying to create a dfu image in TASKING for stm3220G-EVAL. For bootloader I'm using ''STM322xG-EVAL_USBD-FS'' from the STM32_USB-Host-Device_Lib_V2.1.0 library. The binary templet example in STM32_U...
Posted on September 05, 2013 at 10:22From example code given in STM32F2 , I used RTC example & use it with LSI.I have 3V on Vbat pin. I found that when VDD gets removed LSI oscillator gets off also, even if Vbat is present. Is it property of LSI or ...
Posted on September 03, 2013 at 12:07Hi, I would like to ask, what is necessary to make when I configure a input channel as a cascade 32 bit counter, using a master/slave timers as counters, and then when I need to use this input channel as a 16 bit...
Posted on September 04, 2013 at 18:36 Hi :) I'm faced to a DMA who don't want work ... I have look all around (this forum , internet , crystal ball .. ) but i don't know why my screen stay blank :( I use a 320 x 480 (ILI9481) tft scree...
Posted on August 30, 2013 at 03:17hi guys i'm new to stm32, i got a problem that i used sdio and fatfs to test maximum speed of write sd card, its only around 330kb/s but when i try to use sd card reader its up to 2mb/s, so i want to figure out why ...
Posted on September 04, 2013 at 18:14I'm trying to flash a custom bootloader to one of these devices: http://www.mikroe.com/mini/stm32/, and they seem to have protected their bootloader. I'm using an STM34F4discovery board for SWD, and OpenOCD (0.7...
Posted on September 04, 2013 at 22:45Hello everyone, I'm trying to transfer 2 bytes using SPI in master mode and DMA. Additionally I have to set and reset CS signal by software. CS signal is low before starting transfer and is high after transfer.So...
