86 lines
3.5 KiB
Plaintext
86 lines
3.5 KiB
Plaintext
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/*****************************************************************************
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* | File : Readme_CN.txt
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* | Author : Waveshare team
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* | Function : Help with use
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* | Info :
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*----------------
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* | This version: V1.0
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* | Date : 2021-06-05
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* | Info : Here is an English version of the documentation for your quick use.
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******************************************************************************/
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This file is to help you use this routine.
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A brief description of the use of this project is here:
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1. Basic information:
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This routine was verified on Raspbe Pi 4B using the XXXinch e-paper HAT module.
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You can view the corresponding test routines in the \lib\Examples\ of the project.
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2. Pin connection:
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Pin connection You can view it in DEV_Config.h in the \lib\Config\ directory, and repeat it here:
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EPD => Jetson Nano/RPI(BCM)
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VCC -> 3.3
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GND -> GND
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DIN -> 10(SPI0_MOSI)
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CLK -> 11(SPI0_SCK)
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CS -> 8(SPI0_CS0)
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DC -> 25
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ERST -> 17
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BUSY -> 24
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INT -> 27
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TRST -> 22
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SDA -> SDA1
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SCL -> SCL1
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3. Basic use:
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Since this project is a comprehensive project, you may need to read the following for use:
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You can see the functions that have been annotated of main.c.
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Please note which ink screen you purchased.
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Chestnut 1:
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If you purchased 2.9inch Touch e-Paper HAT, then you should remove the comment for the corresponding 6 lines of code, ie:
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// TestCode_2in9();
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changed to:
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TestCode_2in9();
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Then you need to execute:
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make
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compile the program, will generate the executable file: main
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Run:
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sudo ./main
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If you modify the program, you need to execute:
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make clear
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then:
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make
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4. Directory structure (selection):
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If you use our products frequently, we will be very familiar with our program directory structure. We have a copy of the specific function.
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The API manual for the function, you can download it on our WIKI or request it as an after-sales customer service. Here is a brief introduction:
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Config\: This directory is a hardware interface layer file. You can see many definitions in DEV_Config.c(.h), including:
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type of data;
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GPIO;
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Read and write GPIO;
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Delay: Note: This delay function does not use an oscilloscope to measure specific values.
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Module Init and exit processing:
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void DEV_Module_Init(void);
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void DEV_Module_Exit(void);
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Note: 1. Here is the processing of some GPIOs before and after using the ink screen.
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2. For the PCB with Rev2.1, the entire module will enter low power consumption after DEV_Module_Exit(). After testing, the power consumption is basically 0;
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\lib\GUI\: This directory is some basic image processing functions, in GUI_Paint.c(.h):
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Common image processing: creating graphics, flipping graphics, mirroring graphics, setting pixels, clearing screens, etc.
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Common drawing processing: drawing points, lines, boxes, circles, Chinese characters, English characters, numbers, etc.;
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Common time display: Provide a common display time function;
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Commonly used display pictures: provide a function to display bitmaps;
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\lib\Fonts\: for some commonly used fonts:
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Ascii:
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Font8: 5*8
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Font12: 7*12
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Font16: 11*16
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Font20: 14*20
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Font24: 17*24
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Chinese:
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font12CN: 16*21
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font24CN: 32*41
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\lib\E-paper\: This screen is the ink screen driver function;
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Examples\: This is the test program for the ink screen. You can see the specific usage method in it.
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