BOOTROM correction system and method and chip
A chip and code technology, applied in the field of microelectronics, can solve problems such as increasing chip tape-out costs and labor costs, delaying chip mass production and listing time, and company losses
Pending Publication Date: 2021-09-10
博流智能科技(南京)有限公司
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Problems solved by technology
After the chip is taped out, it cannot be modified. If the design of the BOOTROM is flawed and the function is not perfect, it will not only affect the various functions and performance verification work after the chip is taped out, but also affect the development of the normal function of the chip. If the BOOTROM is corrected Taping out again will not only increase the cost of chip tape-out and labor costs, but also delay the time for mass production and listing of chips, which will cause great losses to the company
Method used
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[0030] Preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.
[0031] In order to further understand the present invention, the preferred embodiments of the present invention are described below in conjunction with examples, but it should be understood that these descriptions are only to further illustrate the features and advantages of the present invention, rather than limiting the claims of the present invention.
[0032] The description in this part is only for several typical embodiments, and the present invention is not limited to the scope of the description of the embodiments. The mutual replacement of the same or similar prior art means and some technical features in the embodiments is also within the scope of the description and protection of the present invention.
[0033] The description of the steps in each embodiment in the specification is only for convenience of description, and the imple...
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The invention discloses a BOOTROM correction system and method and a chip. The BOOTROM correction method comprises the following steps: storing correction codes in a storage module; setting a BOOTROM correction control unit, and starting BOOTROM correction logic of the whole system; after the system is powered on or reset, due to the fact that a BOOTROM correction control unit is enabled and a CPU is in a reset state, enabling a storage module controller to acquire correction codes from the storage module, storing the correction codes in a BOOTROM correction execution unit, and enabling the BOOTROM correction execution unit; after the storage module controller completes carrying and enabling of the correction codes, releasing the CPU; and enabling the CPU takes instructions from the BOOTROM unit for execution, and enabling the BOOTROM correction execution unit to replace defective codes on an original address according to correction content so as to complete correction of the defective codes, therefore the BOOTROM unit can work normally. According to the BOOTROM correction system and method and the chip provided by the invention, the chip tape-out failure risk can be reduced, the chip tape-out cost is reduced, and the chip tape-out success rate is improved.
Description
technical field [0001] The invention belongs to the technical field of microelectronics and relates to a correction system, in particular to a BOOTROM correction system and method as well as a chip. Background technique [0002] BOOTROM (Boot read-only-memory) or BootROM is a mask ROM in the chip, which stores the first code executed when the chip is powered on or reset. Its main function is to complete the initialization of basic circuits such as chip power supply, clock, memory, etc., and decide where to load the next execution code according to external pins or configurations in the chip (such as RAM or EFUSE in the chip), and to The legality and integrity of the code are checked. [0003] It can be seen that BOOTROM plays an important role in the chip. As an important part of the chip, BOOTROM is taped out together with the chip when the chip is taped out. After the chip is taped out, it cannot be modified. If the design of the BOOTROM is flawed and the function is not...
Claims
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IPC IPC(8): G06F11/07G06F11/14
CPCG06F11/0793G06F11/1441
Inventor 陈朋芳侯松武继好陈景研
Owner 博流智能科技(南京)有限公司