Error-free data receiving method and device
A data receiving method and error-free technology, applied in the field of communication, can solve the problem of data error-free reception, etc., and achieve the effect of improving test efficiency and saving error test time.
Active Publication Date: 2017-11-03
SANECHIPS TECH CO LTD
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Problems solved by technology
[0006] In the existing technology, to ensure error-free transmission between links, the built-in CDR of the interface is generally used for data recovery, and then the parameters of the links are adjusted to achieve the best performance. However, this method does not apply to the above mentioned conditions. to the situation
[0007] Aiming at the problem in related technologies that it is difficult to receive the data sampled by the ADC without error, no effective solution has been proposed so far
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[0030] Hereinafter, the present invention will be described in detail with reference to the drawings and examples. It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other.
[0031] First, a brief introduction to the execution idea of the error-free data receiving method provided by the embodiment of the present invention: the most direct indicator to measure the performance of a high-speed link is the bit error rate (BER). Normally, the order of magnitude of the BER should reach 10- 12 to 10-15. For example, the Common Electrical I / O (CEI-6G-LR) protocol stipulates that the rate reaches 6.375Gbps, and the link with a wiring length of 40 inches has a bit error rate of 10-15. To measure such a low bit error rate, the time factor is a very big problem for testers. For example, the rate of the link is 2.620Gbps (381ps / bit), calculated according to the average statistics of...
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The invention discloses a method and device for receiving error-free data. Wherein, the method includes: detecting the predetermined number of phase values in the data eye diagram of the received data and the error value corresponding to the phase value; determining the phase value of the central point of the data eye diagram according to the detection result; The edge of the clock is adjusted to the time position corresponding to the phase value of the center point of the data eye diagram, and the error-free data is received according to the adjusted associated clock. Through the present invention, it is possible to quickly perform code error-free locking and receiving even when the data does not have enough jumps, thereby achieving the effects of greatly saving code error testing time and improving test efficiency.
Description
technical field [0001] The present invention relates to the field of communications, in particular to a method and device for receiving data without error codes. Background technique [0002] As the market's requirements for communication system capacity continue to increase, the single-link rate of digital signals inside communication system equipment is also gradually increasing. For example, for transmission communication systems, the high-speed interface rate has increased from the initial 1.25Gbps to the current 11.3Gbps. Interface throughput increases exponentially. However, as the rate increases, more and more technical problems are encountered, among which the correct reception of high-speed data is the key technical difficulty. [0003] In previous communication systems, the reception of high-speed data usually uses the serial-parallel (SERDES) transceiver inside the chip to recover the associated clock through Clock Data Recovery (CDR), relying on the rising edge ...
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IPC IPC(8): H04L1/00
Inventor 梁侠周海涛
Owner SANECHIPS TECH CO LTD