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Design of SPI automatic transmission module based on FPGA

2013-09-22
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Design of SPI automatic transmission module based on FPGA: 1. Abstract: SPI interface is widely used. In many cases, people will use software simulation method to generate SPI timing or use MCU with SPI function module. But with the development of programmable logic technology, people often need to design simple SPI transmission module by themselves. This paper introduces a method based on FPGA to automatically send parallel data in SPI serial mode. 2. Keywords: VHDL, FPGA, SPI, serial data output selection module, shift pulse generation module, SPI clock acquisition signal and SPI reference clock generation module without phase shift, SPI clock output selection module, 8bit SPI clock acquisition generation module, 16bit SPI clock acquisition generation module, 24bit SPI clock acquisition generation module, 8bit data shift module, 16bit data shift module, 24bit data shift module.

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