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.…
STM32 GPIO Lecture 2 : GPIO behind the scene
GPIO behind the scene In this article, let’s understand how the GPIO pin is implemented inside the microcontroller. Figure 1 is GPIO looks behind…