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Posted on February 28, 2014 at 16:28Is there any documentation or examples for the new USB stack in the STM32CubeF4 code library ? I need to implement an USB Virtual Com port. I have done this for the older usb stack in the STM32F4-Discovery_FW_V1.1...
Posted on June 05, 2014 at 14:46Hello, I am very new in STM32F103 CPU and I need to make very simple program. I need to generate PWM signal with definned on-time and off-time.The on-time must be in range from 1us to 1000us, step is 1 us. The same wi...
Posted on May 30, 2014 at 11:31 Hi, I have a big problem,I try to use a WS2812 (LED card), with a stm32f4 But it doesn t work at all .... I try in debug and the program is blocked here:while(!DMA_GetFlagStatus(DMA1_Stream5, DMA_FLAG_TCIF5)); plea...
Posted on June 05, 2014 at 04:21Hi All,Using any type of SD card (SD,SDHC,SDXC) DMA reading from the cards works consistently (With an XC card, can obtain 12-15 MB/s)Writes are typically 2-6 MB's, but every so often, the DMA-write stalls for up to 2...
Posted on June 04, 2014 at 22:15Hi,I want to declare an array of constant values and have them put into code memory.Something like this:const uint16_t my_array[4] = {0x3456, 0x789A, 0x1234, 0x9876};I want to be able to download the code and then sta...
Posted on June 04, 2014 at 18:42Hi, i want to make a delay function using timers using stm32f4 discovery.Unfortunatelly i have no idea the start. I read the timers doucmentation but it didn''t help me a lot.Can anyone guide me please?
Posted on June 04, 2014 at 21:19I was wondering what the SDRAM is used for in the demo project on the STM32FR439_Eval platform. Is the SDRAM used as frame buffer for UI or anything in the demo? Or is it only ever exercised in one of the tests? Also,...
Posted on June 04, 2014 at 19:27I have a high speed clock at 10 MHz going to the processor's TIM4 input capture pin (ch.3). I would like to verify that the clock is running at 10 MHz with the processor's input capture. I coded the processor with the...
Posted on June 02, 2014 at 19:41 Hi every body, I am using stm32f0 to control a water control systems by getting a value from a temperature sensor which is read by the ADC. I am trying to activate my system 15 secondes each 30 secondes, 4 ...
Posted on June 04, 2014 at 02:51Hi, I am using the STM32F415RGT. A 50MHz oscillator is connected to the HSE input. In the STM32CubeMX Clock Configuration tab, I selected HSE for the System Clock Mux. Supposedly the system clock should be driven d...
