Alternate functionality configuration of a GPIO pin       In alternate functionality mode, as the name indicates the pin will assign for other functionality.     Let’s discuss…

  Output configuration of GPIO Pin in Open drain mode         In Open-drain configuration, PMOS doesn’t exist, and two output possibilities are high or floating.  A “0”…

Output configuration of GPIO Pin in Push pull mode     In this article, let’s understand the GPIO output mode. For output mode, there are two configurations. open drain, push-pull.…

Input configuration of Microcontroller’s GPIO Pin In this article, let's first decide the mode of GPIO as input, output, or an analog. If the GPIO pin is in input mode,…

  GPIO MODE REGISTER       Let’s understand the GPIO mode register in this article. The very first register is the port mode register, and the name of this register…

  Exploring GPIO PORT and PINs of STM32F4xx discovery board         STM32F407VG supports up to 9 GPIO ports which are GPIOA to GPIOI. Each port will have…