Ask questions, find answers, and share insights on STM32 products and their technical features.
Posted on November 22, 2011 at 18:53Hi everybody,I am using MCU STM32F103RBT6, i have a problem with real time clock.that is after reset MCU, real-time counter stand by 4~6 seconds and run. so, my real-time delay 4~6s after every reset MCU. I think ...
Posted on October 01, 2011 at 15:56Hi,I'm triyng to transmit data from an accelerometer to STM32L-Discovery and send this data from STM32L-Discovery to PC using SPI and RS232This is my initialization code RCC_APB1PeriphClockCmd(RCC_APB1Periph_SPI2,...
Posted on November 23, 2011 at 22:04Hello,Unfortunately i cannot find information about STM32 QFN middle exposed pad connection anywhere. I'm interested especially in STM32F103T8. Tester didn't show any conductance from pad to Vss or Vdd pins. To ha...
Posted on October 25, 2011 at 22:23Hello, First I4m working on my own board, a product almost final on which I added USB. MCU is STM32F205RE and ''of course'' I used the HS USB port (using embedded PHY). Now I'm trying to get it working and it is VE...
Posted on November 23, 2011 at 02:23Is there a simple example of this?I've written some code based on a working non-DMA version of my SPI object. So far I have the following:void SPI2_StartDMA(u16 NumBytes){ // Disable both DMA channels DMA1_Stream3...
Posted on November 22, 2011 at 12:54HiI have an accelerometer which works with synchronous serial. I would like to read this data into my STM32 Discovery board.My question is, does the USART need to be transmitting for the Clock signal to run? I ask...
Posted on November 22, 2011 at 14:14Hi, I need a delay(uint) function for my stm32f103ze project. My IDE is KEIL with STM32 Std.Periph. v3.5.0 I found a snipped in a KEIL example but I don't understand it and I dont know if its correct. volatile un...
Posted on November 21, 2011 at 14:27I test the USB HOST HID example with STM32F207,a keyboard is connected to USB FS port.When the program is executed, the keyboard can be recognized by STM32F207,and LCD display message:HID device:keybd,but it doesn...
Posted on November 17, 2011 at 16:37The original post was too long to process during our migration. Please click on the attachment to read the original post.
Posted on November 21, 2011 at 22:45In principle, i2c and spi interfaces need open drain connections with (data) lines connected to pull-up resistors.However, in all the sample codes of the STM32 (examples in the peripheral library), the GPIOs for t...
