Full-duplex communication device based on SPI and method thereof
A communication method and full-duplex technology, applied in the fields of instruments, electrical digital data processing, etc., can solve the problems of no response mechanism, no specified flow control, and reduced system response speed, so as to ensure the integrity and accuracy, and improve the system. The effect of improving response time and data throughput
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[0035] In order to facilitate the understanding of those skilled in the art, the present invention will be further described in detail below with reference to the drawings and embodiments.
[0036] The present invention discloses a full-duplex communication device based on SPI, such as figure 1 As shown, it includes a master device and a slave device, and a signal line provided between the master device and the slave device for mutual communication between the master device and the slave device. The signal lines include: data lines MISO and MOSI, a synchronous clock signal line CLK, a slave device selection signal line CS, a signal line M_REQ for the master device to request the slave device to receive data, and a signal line S_REQ for the slave device to request the master device to receive data.
[0037] The signal line M_REQ is connected between the I / O port of the master device and the interrupt trigger port of the slave device, controlled by the master device, and the sig...
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