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Posted on August 20, 2013 at 20:03Hello, I was writting a driver for SPI transfer using double DMA ... to test it I wrote a few lines of code that prepared a buffer (locally), and sent it over SPI. The result was the first 4 bytes were ok then the d...
Posted on August 20, 2013 at 11:40 STM32F103VCT6 PC4 / PC5 / PD0 / PD1 these pins in the process of electricity software initialization unfinished is what status
Posted on June 11, 2013 at 23:11I have a stupid question: F407 has 2 RAM banks - 128K with DMA access, and 64K no DMA access. 1) I saw that in all examples only the 1st bank used. 2) I saw that in all IAP Firmware Upgrade exampler, bootloader search...
Posted on August 19, 2013 at 18:36Hello,I'm a newbie with microcontrolers and their memories. I want to manipulate several big tables (around 50kBytes), that mean I want to access to theses data and change their values.Of course the RAM memory of my...
Posted on August 15, 2013 at 16:32 Hi all, I've been trying to implement a low pass filter, following closely the example found here - http://www.keil.com/pack/doc/arm/cmsis/cmsis/documentation/dsp/html/arm_fir_example_f32_8c-example...
Posted on August 13, 2013 at 14:36 Hi all, I'm using STM32F205VGT,STM32_USB-Host-Device_Lib_V2.1.0 and virtual com port driver ''VCP_V1.3.1_Setup_x64.exe''. The PC works with Windows 7/64bits. When I start USB device the initialization of USB start...
Posted on August 19, 2013 at 12:18hello i'm trying to make the user button working with a simple led program here is the code and please tell me what's the problem (it worked just when i keep pushing user button then make a reset): ****************...
Posted on August 20, 2013 at 02:38Hi,I would like to receive a working project the demonstrate how to execute an interrupt handler from CCM RAM using EWARM. I tried the procedure from AN4296 section 2.2. The project compiles, but when the ISR is tr...
Posted on August 19, 2013 at 18:34 Hi, I'm new with ARM and STM32F4. I'm trying to setup a free STM32F4 development environment with Eclipse and GCC ARM Toolchain based in this tutorial:http://hertaville.com/2012/05/28/gcc-arm-toolchain-...
Posted on August 14, 2013 at 21:24hello how can i calculate a delay of 1 second if i have this parameters: SYSCLK(Hz) | 168000000 *----------------------------------------------------------------------------- * ...
