Posted on June 22, 2012 at 08:38In main function when we set or reset PA6, it will land into interrupt, while I have explicitly defined in EXTI9_5_IRQHandler , that only interrupt should happen on PA5 not on PA6. I don't know what is going on Please...
Posted on May 31, 2012 at 16:17Hi, What is the GPIO pins configuration after reset? Where can i find it? Thanks - Udi. #gpio
Posted on May 17, 2012 at 03:39What's the difference between EXTI_Mode_Interrupt and EXTI_Mode_Event? #external-interrupt
Posted on May 06, 2012 at 21:16HiI've seen quite a few UART examples, and all of them set the RX GPIO pin as ''Input-floating''.Why is it not set to ''Push-Pull'' (which can sink and source current)? The Tx pin is set to push-pull. What is the diffe...
Posted on March 31, 2012 at 12:02What is the state of GPIO pins when microcontroller is in standby mode? Each pin remembers it's own state: input, output, analog, pull-up, logic level on it? Which document (datasheet, etc) and where specifies this...
Posted on January 03, 2012 at 14:44HelloI have to try use an external memory for writing and reading same data on stm32 discovery board.Which type memory can i use ? EEPROM or FLASH ? And how can i connect this device to my board ?Is there anyone t...
Posted on December 01, 2011 at 06:29First of all sorry for English and messy explanation. One of EXTI channels configured as interrupt on falling edge. EXTI ISR toggles GPIO(set/reset) pin and resets EXTI pending bit. I measured time between these ...
Posted on July 22, 2011 at 11:07Hi there, I am fairly new to programming these chips, I am currently coding using the IAR Embedded Workspace and loading my program onto an STM32F100 LQFP48 chip.Currently I have pins PB8, PB9, PB10, PB11, PB12, PA11,...
Posted on June 06, 2011 at 09:35Hi, Lets say i want to connect analog signal to ADC channel12 (which is default pin is PORTC-2). Should i configure GPIOC-2 mode as: GPIO_Mode_AIN or GPIO_Mode_AF_OD/PP? I suppose GPIO_Mode_AIN, so when do i use GPIO_...
Posted on June 08, 2011 at 02:31Hello,I am a student and I am starting my final project a little early, and I am glad I did because I am really confused! I am making a guitar-playing robot that I am going to drive off of this handy-dandy microcontr...