Embedded computer system transmitting data between multiple processors and method
An embedded computer and microprocessor technology, applied in digital computer parts, computers, computing, etc., can solve the problems of complex data, data cannot be transmitted smoothly, and high demand for shared memory capacity, so as to ensure correctness and reduce waiting. effect of time
Inactive Publication Date: 2007-08-29
BENQ CORP
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Problems solved by technology
When two microprocessors continue to transmit data, if the second microprocessor cannot take out the data from the shared memory in time to free up the memory space, then the shared memory will not have enough space to store the upcoming data, so that Data cannot be transferred smoothly
That is to say, given this data transmission method, the shared memory capacity will become the limiting factor for the smooth transmission of data
However, with the increase of the functional modules of the embedded computer system and the increasingly complex data processed by each microprocessor, the capacity requirement of the shared memory is getting higher and higher, so that the cost of the embedded computer system is increased.
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[0032] Please refer to FIG. 1 . FIG. 1 is a block diagram of an embedded computer system 10 of the present invention. The embedded computer system of the present invention includes a plurality of microprocessors. The embedded computer system of the present invention can be applied as a non-PC embedded computer system (non-PCembedded computer system), so that each microprocessor can use the serial data bus to communicate data.
[0033] In one embodiment, the embedded computer system 10 of the present invention includes a first microprocessor 12 , a second microprocessor 14 , and a serial data bus 16 . Both the first microprocessor 12 and the second microprocessor 14 are connected to the serial data bus 16 and can transmit data through the serial data bus 16 .
[0034] The first microprocessor 12 and the second microprocessor 14 respectively include a first transmission control program 18 and a second transmission control program 20 . The first transmission control program 18 ...
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The invention provides an embedded computer system, comprising a first microprocessor, a second microprocessor and a sequential data bus, where the first microprocessor comprises a first transmission control program, the second microprocessor comprises a second transmission control program, the sequential data bus is used for the first microprocessor to transmit a sum of preset first transmission data into the second microprocessor, and the first transmission control program will cut the first transmission data into many data segments according to a preset data cutting rule at first and then in sequence transmits them through the sequential data bus to the second microprocessor, and successively, the second transmission control program will recombine these received data segments into a first transmission data according to a corresponding recombining rule.
Description
technical field [0001] The invention relates to an embedded computer system including several microprocessors, and the microprocessors of the embedded computer system can simultaneously exchange data through a serial data bus. Background technique [0002] With the development of computer technology, embedded computer systems with multiple functional module units are also widely used. In a known embedded computer system, each functional module has a microprocessor to control each functional module to perform a predetermined function, and each microprocessor can transmit and receive data with each other. [0003] Usually in an embedded computer system, the microprocessor can support serial data transmission. However, known embedded computer systems do not use serial data transmission for data transmission between microprocessors. This is mainly based on the following two reasons. [0004] First, in the known embedded computer system, there is no proper control mechanism to...
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IPC IPC(8): G06F15/163
Inventor 郑森励
Owner BENQ CORP