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...
Posted on March 28, 2011 at 18:38Hello everyone.I'm trying to get the gpio's working on an external target (st32f103zd).I'm using the Atollic Truestudio lite STM32 discovery ide.The code i'm using works fine on the ''internal target'', the mcu on th...
Posted on November 04, 2010 at 01:34Does ST have manuals or documentation that explains and provides an example of how to use commands in the ''standard peripheral library?'' I'm using the STM32VL Discovery board and it seems when I encounter a line...