Data processing method, device and storage medium
A data processing and data technology, applied in the field of smart cards, can solve the problems of low CPU utilization, CPU inability to process COS instructions, affecting the processing speed of COS instructions, etc.
Active Publication Date: 2022-02-22
GIESECKE & DEVRIENT (CHINA) INFORMATION TECH CO LTD
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Problems solved by technology
[0005] During the period when the CPU is waiting for the completion of the EEPROM erase operation, the CPU cannot process other COS instructions, and the CPU utilization is low, which affects the processing speed of COS instructions.
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[0038] The features and exemplary embodiments of various aspects of the present invention will be described in detail below. In order to make the objects, technical solutions and advantages of the present invention more clear, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only configured to explain the present invention, not to limit the present invention. It will be apparent to those skilled in the art that the present invention may be practiced without some of these specific details. The following description of the embodiments is only intended to provide a better understanding of the present invention by illustrating examples of the invention.
[0039] It should be noted that, in this document, relational terms such as first and second are used only to distinguish one entity or operation from another entity or operation, and...
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The embodiment of the invention discloses a data processing method, device and storage medium. The method includes: when the erasing and writing instruction is executed, obtaining the data to be written corresponding to the erasing and writing instruction; calling the target function, and writing the data to be written into the buffer area, so that the data to be written is written by the buffer area to the memory; block the target function and record the blocking position of the target function; execute other instructions sequentially until the condition of calling the target function again is met; call the target function again, and continue to execute the target function from the blocked position until the memory completes the writing of the data to be written enter. In the data processing method, device, and storage medium of the embodiments of the present invention, the CPU does not wait for the completion of the memory erasing operation, but processes other instructions during the time period of the memory erasing operation, which improves the CPU utilization rate and improves the efficiency. Instruction processing speed.
Description
technical field [0001] The invention relates to the technical field of smart cards, in particular to a data processing method, device and storage medium. Background technique [0002] A Smart Card is a card with a microchip embedded inside it. The integrated circuit in the smart card includes: central processing unit (Central Processing Unit, CPU), electrically erasable programmable read-write memory (Electrically Erasable Programmable read only memory, EEPROM), random access memory (Random AccessMemory, RAM) and solidified in only The on-card operating system (ChipOperating System, COS) in the read memory (Read-Only Memory, ROM). Smart cards can process data by themselves without interfering with the work of the host CPU, and are widely used in fields such as finance, transportation, social security, and the Internet of Things. [0003] Many industry applications put forward requirements on the command processing speed of smart card COS, so the design of COS should increa...
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IPC IPC(8): G06K1/12
CPCG06K1/128
Inventor 邓学博
Owner GIESECKE & DEVRIENT (CHINA) INFORMATION TECH CO LTD