Posted on May 08, 2013 at 17:40 Hi, I'm trying to configure the accelerometer on my stm32f4 discovery board. I lost with all the configuration of LIS302DL and TIM4 (example code) and do I need to configure SPI1 separately??? I si...

Posted on April 16, 2013 at 14:11Hi, I encounter to some problem in understanding of correct EXTI configuration. From ST example and RM0090 Figure.27  I understood that each Pin_0 (A,B...I) connects to EXTI0 interrupt, Pin_1 (A,B...I) to EXTI1 and s...

Posted on March 30, 2013 at 17:19Hello, I need to connect 4 Ultrasonic sensors to STM32f4. Basically I need to measure the pulse width on their output. I tried to configure an interrupt  with TIM5 (32bit counter) for 4 channels and at each interrup...

Posted on March 22, 2013 at 16:28 Hi, does some one know how to reduce timer counter clock? I need to measure some pulse width around 1ms using 16bit timer. I have already configured the timer but I get an overflow. TIM_...