Apparatus and method for carrying out random treatment to memory data
A memory and data technology, applied in the field of processing, can solve the problems of inability to verify random single or multiple addresses in memory, inability to read and modify random single or multiple addresses in memory, and inability to verify fixed addresses in memory, etc. Effect
Inactive Publication Date: 2009-01-21
SHENZHEN SKYWORTH RGB ELECTRONICS CO LTD
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Problems solved by technology
[0003] The main purpose of the present invention is to solve the defect that the random single or multiple addresses of the memory cannot be verified in the prior art, and propose a device and method for random processing of memory data, which can break away from the random single or multiple addresses of the memory by the computer check
[0004] The secondary purpose of the present invention is to solve the defect that the fixed address of the memory cannot be verified in the prior art, and propose a device and method for randomly processing memory data, which can check the fixed address of the memory without a computer
[0005] Another object of the present invention is to solve the defect that the random single or multiple addresses of the memory cannot be read and modified in the prior art, and propose a device and method for random processing of memory data, which can break away from the random single or multi-address of the memory by the computer. Multiple addresses for reading and modifying
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no. 1 Embodiment
[0038] Such as figure 1 Shown is the first specific embodiment of the present invention, and the control unit is realized by microcontroller U1, and microcontroller U1 selects the AT89C51 embedded single-chip microcomputer of ATMEL Company as the control core of the system, and there is software solidified in the chip, and mainly completes the virtual three pairs I 2 C bus timing simulation, and address temporary storage unit U5, standard master chip U6 and I 2 Data exchange (reading, writing, verification) between the C bus to-be-analyzed memory and the extended RAM U3, infrared remote control and key input, LED and LCD output, etc. of the system status.
[0039] In order to make this embodiment have the characteristics of multiple functions, flexible use, and good compatibility, three sets of independent I2C analog buses SDA0-SDA2, SCL0-SCL2 are designed here; bus 0 is connected to address temporary storage unit U5 for storing mode 1 (M1) random check, mode 2 (M2) fixed ch...
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This invention discloses one device and method to random process of the memory data, which comprises the following steps: a, setting the shield address to be analyzed into permitting modifying address, wherein the other addresses are forbidden modifying addresses; b, comparing the data in the memory to be analyzed after operation with the data in the relative address before operation; c, if the varying address is the one forbidden to be modified, then recording the address; d, according to demands to write the address data into the memory address to be analyzed.
Description
【Technical field】 [0001] The present invention relates to a device and method for reading, writing or verifying memory data, in particular to a device and method for randomly reading, writing or verifying memory data in the process of TV production and debugging. 【Background technique】 [0002] Serial I 2 C-bus technology has been widely used in color TV cores. It plays a very active role in shortening the development cycle, simplifying circuits, improving reliability, and automatically debugging during mass production. When the color TV core starts to work, the main control The device passes data (SDA) and clock (SCL) two I 2 C line will be pre-stored in E 2 The parameters in the PROM are read out, and then directly D / A by the main control device or through the I 2 The C bus sends the data to the high-frequency tuner, decoding, sound, field IC and related auxiliary circuits for analog or logic control. During mass production and debugging, as long as the debugging remot...
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IPC IPC(8): H04N17/04G06F12/00
Inventor 吴伟杨军治王勇
Owner SHENZHEN SKYWORTH RGB ELECTRONICS CO LTD