Embedded motherboard based on at91sam9263 processor
An AT91SAM9263, embedded technology, applied in the direction of electrical digital data processing, digital data processing parts, instruments, etc., can solve the problems of inconvenient mobile transportation, single function, large volume, etc., and achieve rich external interface and strong anti-interference Good performance of sex and compatibility
Active Publication Date: 2015-12-23
北京佳华智联科技有限公司
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Problems solved by technology
[0002] With the in-depth development of my country's national economy, more and more embedded systems are applied in the field of industrial control. The core part of embedded system hardware is embedded microprocessor, RAM and FLASH, etc. The difficulty in its design lies in the high-speed The processing of digital signals and the interaction between processed data; at the same time, due to the increasing types of transmission and processing signals in industrial control systems, the number of peripheral interfaces that can be used on general motherboards is limited, and the functions are relatively single, which will be difficult for various industrial control functions. It is required to use multiple motherboards with different functions to achieve the purpose, which increases the cost of choosing the motherboard; currently available motherboards are set separately from the chip, and the space of the motherboard is not optimized, resulting in a loose structure and a large size of the motherboard, which makes mobile transportation difficult. inconvenient
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[0012] Such as figure 1 Shown, the present invention is based on the embedded motherboard of AT91SAM9263 processor, comprises: AT91SAM9263 chip 1, the first SDRAM chip 2, the second SDRAM chip 3, NANDFLASH chip 4 and DataFlash chip 5; The first SDRAM chip 2, the second SDRAM chip 3 are connected to the NANDFLASH chip 4, the SPI interface of the AT91SAM9263 chip 1 is connected to the SPI interface of the DataFlash chip 5, the AT91SAM9263 chip 1, the first SDRAM chip 2, the second SDRAM chip 3, and the NANDFLASH chip 4 and DataFlash chip 5 constitute the minimum system of the embedded motherboard, AT91SAM9263 chip 1 is used for data and information processing, the first SDRAM chip 2 and the second SDRAM chip 3 are used for data temporary storage, NANDFLASH chip 4 is used for storing the operating system kernel and For the file system, the DataFlash chip 5 is used to store the system boot program; the remaining space of the above-mentioned NANDFLASH chip 4 and the DataFlash chip ...
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The invention relates to an embedded main board based on an AT91SAM 9263 processor, belonging to the technical field of the embedded main board for industrial control. The technical problem to be solved is to provide the embedded main board based on the AT91SAM 9263 processor, which has plenty of peripheral interfaces and strong anti-interference performance and is fast in information processing speed. The adopted technical scheme is as follows: a AT91SAM 9263 chip is connected with a first SDRAM chip, a second SDRAM chip and a NANDFLASH chip through a set of independent external bus interfaces serving as board-level internal buses; one SPI interface of the AT91SAM 9263 chip is connected with the SPI interface of a DataFlash chip; and the embedded main board is applied to places such as factory buildings, workshops and the like for computer control industrial production.
Description
technical field [0001] The invention is an embedded motherboard based on an AT91SAM9263 processor, and belongs to the technical field of embedded motherboards for industrial control. Background technique [0002] With the in-depth development of my country's national economy, more and more embedded systems are applied in the field of industrial control. The core part of embedded system hardware is embedded microprocessor, RAM and FLASH, etc. The difficulty of its design lies in the high-speed The processing of digital signals and the interaction between processed data; at the same time, due to the increasing types of industrial control system transmission and processing signals, the number of peripheral interfaces that can be used on general motherboards is limited, and the functions are relatively single. It is required to use multiple motherboards with different functions to achieve the purpose, which increases the cost of choosing the motherboard; currently available mother...
Claims
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IPC IPC(8): G06F1/16
Inventor 李玮吴晓闯郭瑞娟王玉宏田涛
Owner 北京佳华智联科技有限公司