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spi_verilog [2020/01/15 22:17]
gongyu 创建 		spi_verilog [2022/06/23 15:04] (当前版本)
gongyu [SPI slave - HDL FPGA code]
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 +### SPI总线及Verilog实现
 +关于SPI的定义，参见[[SPI]]。
 +
 +#### SPI的硬件实现
 +
 +#### SPI的软件实现
 +
 SPI 1 - What is SPI? SPI 1 - What is SPI?
 SPI is a simple interface that allows one chip to communicate with one or more other chips. SPI is a simple interface that allows one chip to communicate with one or more other chips.
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 Now let's see if we can do useful things with SPI. Now let's see if we can do useful things with SPI.
  
-### SPI 3 - Application +#### SPI的应用举例 ​- 驱动LCD 
-#### LCD interface+
 Since we already know how to drive a graphic LCD panel, in particular in text mode, let's try to write text out from the LPC. Since we already know how to drive a graphic LCD panel, in particular in text mode, let's try to write text out from the LPC.
  
 From the FPGA point of view, the LCD controller uses a few blockrams to hold the font, characters to display, etc... So we just have to make sure that SPI data gets into the blockrams. From the FPGA point of view, the LCD controller uses a few blockrams to hold the font, characters to display, etc... So we just have to make sure that SPI data gets into the blockrams.
 From the ARM point of view, the function that sends data to the LCD blockrams is called "​SSP_WriteBlock"​. From the ARM point of view, the function that sends data to the LCD blockrams is called "​SSP_WriteBlock"​.
 +
 <code c> <code c>
 // function used to write in the LCD blockrams // function used to write in the LCD blockrams
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 After configuring the FPGA with the LCD controller, and running the ARM code, here's what we get: After configuring the FPGA with the LCD controller, and running the ARM code, here's what we get:
- 
- 
  
 More ideas of projects More ideas of projects
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 ... ...
 Your turn to experiment! Your turn to experiment!
 +
 +
 +Github上分享的一个用SPI驱动SSD1306 OLED屏幕的项目参考代码：
 +  * [[spi_master|SPI Master Verilog代码]]
 +  * [[ssd1306_verilog|OLED控制器SSD1306的控制逻辑]]
 +
 +
 +#### 相关资料
 +{{http://​ww1.microchip.com/​downloads/​en/​devicedoc/​spi.pdf|Microchip关于SPI的PPT}}