Ask questions, find answers, and share insights on STM32 products and their technical features.
Posted on February 25, 2014 at 15:30 Hi guys, I need help to configure the stm32f4 clock to disable the pll and just work with the 8MHz external crystal of the discovery board. The goal is to reduce as much as possible the consumpt...
Posted on January 16, 2013 at 11:39Hi, i'm using the stm3240f board with a stm32f4-series.I try to generate PWM but nothing happen.what i did : /*declaration-----------------------------------------*/TIM_TimeBaseInitTypeDef TIM_TimeBaseStructure;TI...
Posted on February 25, 2014 at 12:11Hi ; We produce madical instruments ; our main products depends on stm32f407 and we are happy with it ; Now are designing a new product that needs many DSP filters ( FIR + IIR ) ; the sampling rate would be abou...
Posted on February 25, 2014 at 13:54UPDATE: The TIM_SelectInputTrigger function and the TIM_ITRxExternalClockConfig function both write to the TS bits in the TIMx_SMCR register so the final value is ITR2 overwriting the TI1FP1 value set. Because I ...
Posted on April 27, 2013 at 17:53The original post was too long to process during our migration. Please click on the attachment to read the original post.
Posted on February 22, 2014 at 14:31I used the discovery kit to prototype a control-board. The self developed board using the stm32F4 MPU works well. Thus far i flashed it with the st link debugger that is integrated into the kit, which worked fine....
Posted on February 24, 2014 at 06:27 Hi , I am using STM32F429 discovery. The system tick is suppose to produce an interrupt every 1ms. However, i have gotten 3.12ms instead. Did i make a mistake ? int main(void) { Init_...
Posted on February 23, 2014 at 16:05 Dear all, I'm having problems to understand what's happening. While searching for the cause of the error I started from the scratch - the code is stripped down to the bare minimum. I think any cross interf...
Posted on February 12, 2014 at 15:07 Hello, I'm trying to interface the STM32L152 Discovery with an LCD display (NHD-C0220BiZ-FSW-FBW-3V3M) through I2C. I'm finding a problem when trying to write the first command to the LCD the code gets...
Posted on February 19, 2014 at 14:10 Hi all, I have a question about HSE clock source. I loaded the demo and added some code to check the HSE clock on PA8. ... GPIO_InitTypeDef GPIO_InitStructure; ... int main(void){ ... RCC_HS...
