STORAGE DEVICE WITH FIRMWARE SYNCHRONIZATION FUNCTION

摘要

A storage device includes a primary storage extension chip, a plurality of secondary storage extension chips, and a plurality of resistors. Each of the storage extension chips includes two data pins, a plurality of general purpose input/output (GPIO) pins, and a firmware. Each of the GPIO pins is connected to a power terminal through one resistor, and is grounded through a resistor, for setting a firmware version number of storage extension chips. The primary storage extension chip determines whether the version number of each secondary storage extension chip is same as that of the primary storage extension chip. If the version number is different from that of the primary storage extension chip, the firmware version number of the primary storage extension chip is applied to the secondary storage extension chip.

主权项

1. A storage device comprising:
a storage unit comprising a primary storage extension chip and a plurality of secondary storage extension chips, each of the primary storage extension chip and the plurality of secondary storage extension chips comprising a first data pin, a second data pin, a firmware, the first and second data pins of the primary storage extension chip electrically coupled to the first and second data pins of the plurality of secondary storage extension chips; and a control unit comprising at least two setting units, to electrically couple to the primary storage extension chip and the plurality of secondary storage extension chips, wherein each of the setting unit comprises a version number setting unit, and configured to set firmware version numbers of the primary storage extension chip and the plurality of secondary storage extension chips, through the corresponding version number setting unit; and if the firmware version number of at least one secondary storage extension chip is different from the firmware version number of the primary storage extension chip, the firmware version number of the primary storage extension chip can be synchronized to the firmware version number of the corresponding secondary storage extension chip.