Ask questions, find answers, and share insights on STM32 products and their technical features.
Posted on November 25, 2012 at 11:22 I'm sorry, but I do not quite 5v tolerant ports for STM32. I do not unterstand concept '' Total injected current (sum of all I/O and control pin)'' Example STM32F0 and on 8 5V tolerant I/O connected L...
Posted on November 25, 2012 at 09:17Hi, We used STM32F103Z on one our boards, using the programming via UART1 with Flashloader Demo application. Everything was fine till the moment, when we decided to replace it with STM32F407. Of course the package...
Posted on November 23, 2012 at 11:03 Hi fellow forum mates, I am a student working on a new project using stm32f4 eval board. My task is to measure the frequency from 3 different sources ranging from 1000hz to 725khz. I have been trying f...
Posted on November 24, 2012 at 15:09Hi, please have a look at the following code (STM32F407):volatile long long vllPosition; void TIM1_UP_TIM10_IRQHandler(void){ ... do interrupt stuff ... vllPosition ++; ... do interrupt stuff ... } int main( voi...
Posted on November 18, 2012 at 12:03 Hey everyone, I'm working on the STM32F4DISCOVERY with CoIDE 1.6.0 in C++. I have an interrupt on TIMER4 overflow, and so I put the interrupt service routine (void TIM4_IRQHandler(void) {}) in the main.cpp....
Posted on November 23, 2012 at 12:12HI, I'm I right to assume that in 100pin devices FSMC can be used only in multiplexed mode as Address bus is not available on this chips? Or one should drive Address lines in FW. So that A0 used as RS signal for ...
Posted on November 22, 2012 at 20:43Hi. I hope someone can help me here...I have been looking at the STM32f4 dac signal generation code. I would like to know how I could change the frequency of the output waveform with a potentiometer or, using the ...
Posted on November 23, 2012 at 16:41Hello everybody, I'm beginner with STM32F1, can any one share with me a basic example of showing how to trig ADC by a Timer? I didn't find any example in the ANs and standard lib? Could you help? Thanks in adva...
Posted on November 23, 2012 at 14:34hello,my stm32f4discovery board started not working without connecting external 0-5V power supply to GND and 5V pins.when i plug usb only, nothing happens, none of the leds light. if i connect external power addit...
Posted on November 22, 2012 at 21:53hello forum I am trying to compile a C program for STM32F4 microcontroller with Eclipse + yagarto compiler I get the error;undefined reference to `_impure_ptr' there is no function ''impure_ptr'' in whole project...
