Method for adapting and transmitting PCI bus to configurable frame length serial bus
A PCI bus and serial bus technology, which is applied in the field of airborne computer design of avionics systems, can solve the problems of fixed frame length, increased cost, and high bit error rate, and achieves reduced research and development costs, strong adaptability, and anti-interference ability. strong effect
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[0037] A method for adapting and transmitting a PCI bus to a serial bus with a configurable frame length provided by the present invention is realized based on a PCI core and a serial bus IP core, such as figure 1 As shown, wherein, the serial bus IP core includes an interrupt control module, a clock control module, a receiving error register module, a configuration register module, a buffer module, a data encoding sending module, and a data receiving and encoding module, and the buffer module includes sending buffer and receive buffer.
[0038] Such as image 3 As shown, the sending process is as follows:
[0039] 1, first utilize PCI core, PCI bus is converted into local bus; PCI soft core of the present invention realizes the function of Initiator, in order to improve transmission efficiency, support single and burst transmission mode;
[0040] 2. After converting to a local bus, the user program interface adapts the local bus, and adapts the local bus to the logical timi...
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