STM32 GPIO Lecture 8 : GPIO Programming Structure
GPIO Programming Structure GPIO port is governed by many registers, as shown in Figure 1. These registers may vary depending on the vendors who design…
STM32 GPIO Lecture 7 : Optimizing I/O power consumption
Optimizing I/O power consumption If an input pin is floating, it may result in leakage current from VCC to the ground. First, let's take the case of…
STM32 GPIO Lecture 6 : GPIO output mode with push pull state
GPIO output mode with push pull state GPIO (General Purpose Input/Output) pins on microcontrollers or single-board computers can be configured in various modes including input, output, and alternate…
STM32 GPIO Lecture 5 : GPIO output mode with open drain state
GPIO output mode with open drain state Open-drain output configuration is nothing but the top PMOS transistor is deactivated as shown in Figure1. When the transistor…
STM32 GPIO Lecture 4 : GPIO input mode with pull-up /pull-down state
GPIO input mode with pull-up /pull-down state Let's understand the GPIO pin in input mode with external or internal pull-up/pull-down resistor connected, as shown in Figure 1 and…
STM32 GPIO Lecture 3 : GPIO input mode with high impedance state
GPIO input mode with high impedance state In this article, let’s understand what precisely this high impedance state is. A high impedance state is also called a Hi-Z state.…