DDS DAC
Posted on August 08, 2014 at 07:49Hello, I am generating a sine wave by DDS method, but I dont know why the signal is flattering at the bottom. Does anyone have any idea why is this happening. Thanks #stm32 #dac
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ADC Resolution
Posted on August 08, 2014 at 17:29ADC resolution 12 bits(with 16 bit buffer) works but 8 bit(with 8bit buffer) results in the code going into an infinite loop in the DMA ISR. __IO uint8_t buffer[1000];/* ADC Config*/ ADC_StructInit(&ADC_InitStructu...
SDADC Limitations Explained
Posted on August 08, 2014 at 15:07After reading through the promotional material, datasheet and reference manual for the STM32F3's SDADC and spending a few days trying to obtain a 16KHz sampling rate, I believe some clarification of the limitations ...
large SDRAM access causing hardfault in stm32f429
Posted on August 06, 2014 at 11:49Hello there!I've interfaced 128 MB(16 bit data bus) sdram through fmc interface in my stm32f429 device. Initialization and everything seems ok. Reading/writing to sdram is ok for small chunks. But writing 12 MB or l...
Non volatile memory on 32F429I discovery board
Posted on August 05, 2014 at 15:54I have a 32F429I discovery board and I have some parameters, e.g. touch screen calibration information, that I would like to store in a non volatile memory. As far as I understand it I have the options of:1 - storin...
stm32f0 spi
Posted on August 07, 2014 at 12:50 hello, I want to send some data using spi but I see anything on my scope when I use this code. does anyone know where is the problem? Thanks #include < stddef.h > #include ''stm32f0xx_rcc.h'' #incl...
LED Microphone Noise Interference
Posted on August 09, 2013 at 23:41Hi,I am working on a simple custom HW design based on the STM32L SoC.The STM32L is connected to several LEDs as well as a microphone along with other external devices like batteries, switches etc .. The firmware is ...
TIMER STM32F429-DISCO
Posted on July 01, 2014 at 09:10Hi,i use the timer 10 to toggle a GPIO with a board STM32F429-DISCO.int init_timer ( void ){TIM_TimeBaseInitTypeDef TIM_TimeBaseStructure;NVIC_InitTypeDef NVIC_InitStructure;RCC_APB2PeriphClockCmd (RCC...
Recieve more then 1 Byte over USART
Posted on August 31, 2012 at 20:51 Hi, at the moment I'm using the following code to recieve a byte: char ReceivedData = NULL; void main() { . . . while (1){ /* Wait until a byte is received */ while (USART_GetFlagStatus(USART...
Stepper motor, timer phase control
Posted on August 07, 2014 at 23:26I am setting up stepper motor control on an STM32F4xxx using Full Step Drive as in http://en.wikipedia.org/wiki/File:Drive.pngBoth timers are setup as up counters with PWM output. Timer 2 controls phases A & C. Time...
