| 摘要 |
A bootstrap program upgrade method, an embedded device, a control device and an embedded system. The bootstrap program upgrade method comprises: receiving an upgrade instruction message sent by a control device, wherein the upgrade instruction message is used for instructing an embedded device to monitor a serial port between the embedded device and the control device; receiving, through the serial port, an upgrade file sent by the control device, wherein the upgrade file is calculated by the control device according to a file path selected by a user, and the upgrade file comprises a file length, a check field and file data; and writing the upgrade file in a memory of the embedded device, so as to replace a current bootstrap program in the memory. |
