EXTERNAL DEVICES, ELECTRONIC DEVICES, METHODS FOR STARTING EXTERNAL DEVICES, AND METHODS FOR DATA PROCESSING

摘要

The present invention provides an external device, including a Boot ROM, a processing module, an internal RAM, and an external RAM. The Boot ROM implements a hardware initialization when receiving a boot command, and stores a download agent protocol and a communication interface protocol. The processing module creates a communication channel with the electronic device according to the communication interface protocol, downloads a download agent application from the electronic device through the communication channel according to the download agent protocol, downloads startup firmware for a startup program by the download agent application from the electronic device, and implements the startup program according to the startup firmware after implementing the hardware initialization. The internal RAM stores the download agent application. The external RAM stores the startup firmware.

主权项

1. An external device, adapted to couple to an electronic device, comprising:
a Boot ROM, configured to implement a hardware initialization when receiving a boot command, and store a download agent protocol and a communication interface protocol; a processing module, configured to create a communication channel with the electronic device according to the communication interface protocol, download a download agent application from the electronic device through the communication channel according to the download agent protocol, download startup firmware for a startup program by the download agent application from the electronic device, and implement the startup program according to the startup firmware after implementing the hardware initialization; an internal RAM, configured to store the download agent application; and an external RAM, configured to store the startup firmware.