Posted on June 25, 2014 at 11:55Hi,I'm using an STM32F4 and have configured IOs as pwm outputs with internal pull down. These pins have been connected to an input of another chip which has a 5V pull up on its inputs. After some time the processor br...

Posted on June 13, 2013 at 16:56Hi,I'm using a stm32f4 discovery board. The data sheet says that my pins are 5V restistant. I have a device that outputs 5V ttl and I want to read this signal. It works, but does it reduce the lifetime of the processo...

Posted on April 18, 2013 at 11:04Hi,I'm using an stm32f4 on a PCB and suddenly it became extremely hot. The strange thing is that it still worked, but there was an extremely (relatively) high current running through the circuit. I've removed the stm...

Posted on January 21, 2013 at 16:21Hi,I have two identical cards with stm32f4 on them. I think one of them has a broken USART1 on it. If i erase flash on both cards, load the same code onto them, the USART1 only works on one of the cards. Everything...

Posted on October 18, 2012 at 11:01 Hi, Im using a STM32f405RG and i am trying to get a simple USART example to work. I load the following code to the mcu: #include ''stm32f4xx.h'' #include ''stm32f4xx_gpio.h'' #include ''st...