| 摘要 |
There is disclosed, for use in a wireless messaging device, an update controller for performing an over-the-air (OTA) update of a first program stored in an erasable read-only memory (ROM) (220) in the wireless messaging device. The update controller comprises: 1) a transceiver (210) for transmitting and receiving wireless messages to and from a base station in a wireless network, and 2) a message controller (215) coupled to the transceiver for detecting an OTA update message transmitted by the base station. In response to detection of the OTA update message, the message controller (215) transfers an update control program (224) stored in the erasable ROM (220) to a random access memory (RAM) coupled to the message controller (215) and executes the update control program from the RAM (230). Under control of the update control program (224) in RAM (230), the message controller (215) receives a replacement program over the air and overwrites at least a portion of the first program stored in the erasable ROM (220).
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