Multi-thread SPI communication data transmission method

Abstract

The invention discloses a multi-thread SPI communication data transmission method. A standard SPI protocol is improved without changing a SCLK rate, a TXD thread is added, when data is sent, two TXD transmitting lines are used, before the TXD data is sent, one path of serial data is converted into two paths of parallel data in an alternating mode, then the parallel data is transmitted through theTXD lines, and therefore the system clock rate for processing data serial-to-parallel conversion is two times that of an SCLK clock. In this way, under the condition that the SCLK rate is not changed,two times of data volume can be sent, and once one line is added, one time of data transmitting volume can be increased. By applying the multi-thread SPI communication data transmission mode, the data transmission amount and the processing amount can be increased, the system efficiency is improved, and the material cost and the time cost of re-research and development are saved.

Description

technical field [0001] The invention relates to the technical field of communication systems, in particular to a multi-thread SPI communication data transmission method. Background technique [0002] With the rapid development of science and technology, various software and hardware devices are updated faster, with more functions, and more and more data to be processed, especially for upgrading old systems. In order to meet the data processing requirements of new systems, It is possible that all hardware circuit boards need to be replaced, and the R&D and production costs of hardware equipment are relatively high, which will cause relatively large waste. [0003] In the prior art, data is transmitted through a standard SPI (as attached figure 1 (shown) uses a full-duplex synchronous serial port protocol, and controls data transmission through a synchronous clock. The frequency of the synchronous clock will affect the data transmission rate, and the frequency of the synchron...

AI Technical Summary

Problems solved by technology

[0002] With the rapid development of science and technology, various software and hardware devices are updated faster, with more functions, and more and more data to be processed, especially for upgrading old systems. In order to meet the data processing requirements of new systems, All hardware circuit boards may need to be replaced, and the cost of R&D and production of hardware equipment is relatively high, which will cause relatively large waste

[0003] In the prior art, data is transmitted through a standard SPI (as attached figure 1 (shown) uses a full-duplex synchronous serial port protocol, and controls data transmission through a synchronous clock. The frequency of the synchronous clock will affect the data transmission rate, and the frequency of the synchronous clock cannot be amplified a lot, otherwise it will cause data errors rate increase

In the process of communication signal processing, the data transmitted between communication boards will be very large, and the standard SPI transmission data cannot meet large-scale data transmission

Images