ADC Vref stm32f4 disco
Posted on July 21, 2015 at 13:42Hi, I want to know how could I get a range 0-5V in ADC. I know that normally it's from 0-3V. It's enough connecting 5V to Vdd? Thank you
Forum Posts
IIR biquad testing - float64 MATLAB vs. CMSIS [solved]
Posted on July 21, 2015 at 15:43 Hello there I've been trying to implement an IIR biquad lowpass filter with the DSP library lately. I started out by designing the filter in MATLAB and calculating the IIR parameters before I pretty much ...
Input capture timer - measure frequency
Posted on July 20, 2015 at 16:58 Hi, I had to measure frequency but in a large range of frequency. the target is a STM32L I would like to realize something like : T2 generate a 10hz signal on PA0(using internal clock, and compare/match) ...
Clock and I/O pin to an external peripheral
Posted on July 21, 2015 at 15:29Hi all, I have a STM32F103 and a Secure Access Module (SAM) (PCM1.1 by NXP). The SAM needs a clock input and an I/O pin to send and receive data to and from the MCU. In my design, the clock port of SAM is already conn...
matlab coefficient to stm32f429i discovery board
Posted on March 30, 2015 at 08:46I am trying to implement iir Band Pass filter design in STM32F429i discovery kit. I konw that it needs coefficients to be generated from matlab and feed them into cmsis api to achiev filtered data. My SOS Matrix look...
Need help with PWM toggle mode phase shift
Posted on July 21, 2015 at 13:07Hi I have read through a couple of posts that clive1 has made regarding phase shifts in toggle mode. I need 120º shifts between each of the 3 PWM channels. I get 120º shift between channel 1 and 2, but anything more t...
Problem enabling timer in STM32F103
Posted on July 17, 2015 at 12:50Hi all, I am using a STM32F103 MCU and I wanted to enable TIM2 timer and then perform some operations upon signals received by the timer, first by polling and then using interrupts. I have setup my timer i.e. TIM2 as ...
Weird/Not fully understood behaviour of HRTIM
Posted on July 07, 2015 at 13:26Iam having big problems with the high resolution timer on the STM32f334microcontroller.I am using a period of 0xD3C2, this would normally mean that writting 0xD3C2 to a compare register is full duty cycle (or zero - ...
How USB Host should enable Suspend mode?
Posted on February 17, 2015 at 15:54Hi all! I'm a bit confused by USB Host behaviour when trying to enable Suspend mode.I use ST USB library v.2.1.0. and STM32F407. Use Host example for HID device, and it is working correct. Now I try to make some c...
STM32F4 External button not working !
Posted on July 20, 2015 at 23:30I'm trying to interface a push button to my stm32F4 discovery via PA1 , this is the code I got : void EXTI1_IRQHandler(void) { if(EXTI_GetITStatus(EXTI_Line1) != RESET) { EXTI_ClearITPendingBit(EXTI_Line1); ...
