Ask questions, find answers, and share insights on STM32 products and their technical features.
Posted on July 02, 2012 at 15:20I am using STM32 Microcontroller in my product. I am using 32.768 KHz as RTC Crsytal. At the Tamper/RTC pin (pin 2) ideally i should get 512 Hz for calibration . But i am getting 976 Hz so instead of 1 sec update i am...
Posted on July 03, 2012 at 09:20When I was testing DSP efficiency i tried compare how fast is FFT from data from internal SRAM and CCM. The code looks like this:int16_ttab[2048]__attribute__ ((section(''.ccm'')));...GPIO_Pin_high();arm_cfft_radix4_q...
Posted on July 04, 2012 at 00:57Hello everyone!I have been reading about the USB Host capability of STM32F4 family;According I have read, the libraries are limited to attach HID and MSC devices; The drivers are developed just for these classes;Will ...
Posted on July 04, 2012 at 10:12 To jump into the internal bootloader out of the application I do use the following code static const uintptr_t ST_BOOTLOADER_BASE = 0x1FFF0000; static const uintptr_t RESET_VECTOR_OFFSET = 4; static co...
Posted on July 04, 2012 at 18:16 #include ''ll_can.h'' #include ''rcc.h'' #include ''gpio.h'' #include ''nvic.h'' #include ''usb.h'' int can_init(int mode) { rcc_clk_enable(RCC_GPIOB); //enable GPIO port B rcc_clk_enable(RCC_AFIO); //enab...
Posted on December 13, 2013 at 08:30I want to connect HID to a stm32 dev board, not using STM32 as a piece of PC's hardware. I've looked them everywhere and wasn't so lucky to find any. Can anyone please help? I repeat, the STM32 will be working at ...
Posted on November 30, 2013 at 13:57Hi In a new layout, my first with STM32F4 ARM, I have done as the refference manual for this family tells me to do when I where to connect the SWD/JTAG . I used PB4 for Reset (<b>nJTRST</b>) . However, I now see t...
Posted on December 14, 2013 at 23:37Hi all, I am designing a board using stm32F4 device and as I am familiar with ISIS from electronic labcenter I want to use it but there is no library for STM32F4 in ISIS. Is there somebody who has such library or ...
Posted on December 13, 2013 at 10:13 Dear Sir/Madam, I have been trying to understand what I am doing wrong with my serial communication. I am using STM32L Discovery board and have successfully sent and received bytes on my board/PC. ...
Posted on December 12, 2013 at 06:16 I've been coding on the STM32F4 for the past couple years and love the MCU. However, I'm having trouble figuring out how to bring in two external signals and use one as the gate for the other. I'm plan...
