STM32F4: using the DMA controller
When we want to transfer data to/from a peripheral device to perform I/O operations we generally use memory mapped IO: peripherals’ configuration and control registers are mapped to the microcontroller...
Monthly Archive: November 2017
Interfacing a PS/2 keyboard to a microcontroller
In this article I explain how to interface a PS/2 keyboard to a microcontroller. Reading characters from a keyboard is just a matter of understanding the PS/2 protocol which is...