What is qmp?

QMP, or Quick Message Protocol, is a lightweight protocol that enables communication between the bootloader and the firmware on a microcontroller or device. It is designed to be simple, efficient, and easy to implement, making it ideal for use in embedded systems.

QMP utilizes a command/response structure, with commands sent from the firmware to the bootloader, and responses sent back from the bootloader to the firmware. These commands and responses are organized into packets, which are transmitted through a serial communication interface such as UART.

QMP supports a variety of operations, including firmware upgrades, parameter configuration, and debugging. It can also be used to transfer data and code between the bootloader and firmware.

One key advantage of QMP is its flexibility. It can be implemented on a wide range of microcontrollers and devices, and can easily be customized to meet the specific needs of a particular application or system. Additionally, QMP is designed to be robust and secure, with built-in error checking and other features to ensure reliable operation.

Overall, QMP is a powerful and versatile protocol that is widely used in the embedded systems industry, particularly in the development of microcontroller-based devices and systems.