Posted on May 12, 2015 at 20:23Hello,I wrote a small and very short DMA2D example to resize a bitmap using bilinear interpolation. The resize process is entirely handled using the DMA2D Blender with a low CPU resource usage.The CPU, after a fast ini...
Posted on February 24, 2012 at 12:36Hi all, I'm searching to get work my UART4 port on my Discovery. I used the USART HyperTerminal_Interrupt example on stdPerif_example and I adapted to DISCOVERY. I see by some LedOn on the program that UART is wor...
Posted on May 12, 2015 at 07:39I am using STM32F205RBT6. System Freq = 120Mhz. APB2 freq = 60Mhz. ADCCLK = 30Mhz.1. I have a input pulse of 300Khz.2. Need to scan single an adc channel on each rising edge of pulse.3. Have to store 21600 samples of 1...
Posted on May 11, 2015 at 17:18I am as the title is trying to suggest attempting to transfer a large packet over an usb endpoint. I am using bulk-transfer and have modified code from the Virtual comport example to neatly package my buffer into 64 by...
Posted on May 12, 2015 at 13:28I am using external interrupts. STM32F407 is not handling interrupt at speed of greater than 2MHz. /* Includes ------------------------------------------------------------------*/ #include ''stm32f4xx.h'' #include ''st...
Posted on May 12, 2015 at 11:01 Hello, I am working on simple project, where i need to exchange data with other microcontroller, but it would be better to use DMA for it in circular mode. I had this program working without a glitch on STM32F...
Posted on May 12, 2015 at 01:06Is there any clear recommendation from STM how should the firmware configure unused untied GPIOs? In past STM32F1 controllers we used to configure them as output '0' in order to avoid noise (our environment is very noi...
Posted on May 11, 2015 at 18:14Hi All,I'm studying STM32F3 Low power modes and I need to go in standby mode periodically and wake-up via RTC after n seconds (Run->standby->Run ...).I set the RTC, the wakeup-Timer-IT, I do something in main loop and ...
Posted on May 04, 2015 at 18:49Hi I am using discovery board with stm32f429. I configured well the ADC for DMA and works fine but I don't know what is the sampling rate. Anyone can explain how to calculate it? The clock is at 90Mhz the prescaler is ...
Posted on May 09, 2015 at 20:23I finally got the STM32Cube generated code for USB CDC on the STM32F4Discovery working. I had three issues that need to be corrected with in the generated code. I'm using STM32CubeMX ver 4.0.0 with STM32Cube V1.0 and l...
