51 MCU + RA8889 driver control color screen complete source code description [Source code v1.2]

harchy

51 MCU + RA8889 driver control color screen complete source code description [Source code v1.2] [Copy link]

<i class="pstatus"> This post was last edited by harchy on 2024-6-14 11:07 </i> **51 single-chip microcomputer driver control color screen series of lectures** Lecture 1: Single-chip microcomputer STC89C52+RA8889 driver control color screen [Source code v1.0] Lecture 2: Introduction to single-chip microcomputer STC89C52+RA8889 driver control color screen code transplantation Lecture 3: Compression of single-chip microcomputer STC89C52+RA8889 driver control color screen code (Keil compiler) Lecture 4: Single-chip microcomputer STC89C52+RA8889 driver control color screen code transplantation example (including API interface) [Source code v1.1] Lecture 5: 51 single-chip microcomputer + RA8889 driver control color screen complete source code description [Source code v1.2] **Hardware: STC89C52 + RA8889 development board + TFT color screen (example uses AT070TN92)** <ignore_js_op> <img style="cursor:pointer;" id="aimg_816214" aid="816214" src="/bbs/static/image/common/none.gif" onclick="zoom(this, this.getAttribute('zoomfile'), 0, 0, '0')" zoomfile="//bbs.eeworld.com.cn/data/attachment/forum/202406/13/173853f3azw3235p2vip44.png" file="//bbs.eeworld.com.cn/data/attachment/forum/202406/13/173853f3azw3235p2vip44.png" inpost="1" onmouseover="showMenu({'ctrlid':this.id,'pos':'12'})" /> <div class="tip tip_4 aimg_tip" id="aimg_816214_menu" style="position: absolute; display: none" disautofocus="true"> <div class="xs0"> <p><strong>微信图片_20240612121414_看图王.png</strong> <em class="xg1">(2.95 MB, downloads: 0)</em></p> <p> <a href="javascript:;" class="loginf" >download attach</a> <a href="javascript:;" onclick="showWindow(this.id, this.getAttribute('url'), 'get', 0);" id="savephoto_816214" url="home.php?mod=spacecp&ac=album&op=saveforumphoto&aid=816214&handlekey=savephoto_816214">save to album</a> </p> <p class="xg1 y">2024-6-13 17:38 上传</p> </div> <div class="tip_horn"></div> </div> </ignore_js_op> **SPI communication interface definition:** P1.0 RES RA8889 hardware reset P1.4 SCS RA8889 chip select P1.3 SDO connects to RA8889's SDO P1.2 SDI connects to RA8889's SDI P1.1 SCK SPI clock**【v1.0 program function】** 51 single-chip microcomputer uses STC89C52, communicates with RA8889 through SPI interface, and drives 7-inch (800x480) color screen. This version only does basic initialization, simplifies the code, and serves as a basic demonstration. Drawing functions and user interface API have not yet been ported. **【v1.2 Program Function】** 1. This version has ported RA8889.c and RA8889_API.c and renamed them to RA8889_51.c and RA8889_API_51.c. Changes: (1) Delay function only provides ms level. Some of the original reference codes use us delay level. (2) Change the specific keyword data to data_array. (3) The NAND FLASH function is relatively complicated to port, so it is temporarily blocked (RA8889 supports extended NAND FLASH, but only one or two models have passed the verification). (4) The self-built font library takes up a lot of RAM and is not suitable for the 51 MCU environment, so the related functions of calling the self-built ASCII font library are deleted. 2. The core file is stored in RA8889_01_Kernel. 3. Demonstrate the following common functions: ```c Introduction(); //Text introduction Geometry_Demo(); //Geometric drawing demonstration Show_JPG(); //Call FLASH to display JPG images Show_BMP(); //Call FLASH to display BMP images Fade_in_Fade_out(); //Image fade-in and fade-out demonstration Show_AVI(); //Call FLASH to play AVI movies Show_PNG(); //Call FLASH to display PNG images ``` Because there are many codes and the output file is large, the MCU's FLASH needs to have a larger capacity, and the SRAM also needs a larger capacity to run all the demonstration codes. We have tested it on STC89C516RD+, STC12C5A60S2 and other MCUs. **Actual demonstration effect:** <ignore_js_op> <img style="cursor:pointer;" id="aimg_816219" aid="816219" src="/bbs/static/image/common/none.gif" onclick="zoom(this, this.getAttribute('zoomfile'), 0, 0, '0')" zoomfile="//bbs.eeworld.com.cn/data/attachment/forum/202406/13/174144t0jnhnldd86q0zul.jpg" file="//bbs.eeworld.com.cn/data/attachment/forum/202406/13/174144t0jnhnldd86q0zul.jpg" inpost="1" onmouseover="showMenu({'ctrlid':this.id,'pos':'12'})" /> <div class="tip tip_4 aimg_tip" id="aimg_816219_menu" style="position: absolute; display: none" disautofocus="true"> <div class="xs0"> <p><strong>6月11日(1)-封面.jpg</strong> <em class="xg1">(240.88 KB, downloads: 0)</em></p> <p> <a href="javascript:;" class="loginf" >download attach</a> <a href="javascript:;" onclick="showWindow(this.id, this.getAttribute('url'), 'get', 0);" id="savephoto_816219" url="home.php?mod=spacecp&ac=album&op=saveforumphoto&aid=816219&handlekey=savephoto_816219">save to album</a> </p> <p class="xg1 y">2024-6-13 17:41 上传</p> </div> <div class="tip_horn"></div> </div> </ignore_js_op> **Source code download address:** <ignore_js_op> <img src="/bbs/static/image/filetype/zip.gif" border="0" class="vm" alt="" /> <span style="white-space: nowrap" id="attach_816218" onmouseover="showMenu({'ctrlid':this.id,'pos':'12'})"> <a href="javascript:;" class="loginf">STC89C52_RA8889_SPI4_v1.2.zip</a> <em class="xg1">(10.85 MB, downloads: 0)</em> </span> <div class="tip tip_4" id="attach_816218_menu" style="position: absolute; display: none" disautofocus="true"> <div class="tip_c xs0"> <div class="y">2024-6-13 17:40 上传</div> 点击文件名下载附件 </div> <div class="tip_horn"></div> </div> </ignore_js_op>

se7ens

Looks good, can it be used with a 3.3v 51 microcontroller?

harchy

se7ens posted on 2024-6-14 09:54 It looks good. Can I use a 3.3v 51 microcontroller?

Of course you can. The reason why the level conversion module is added in the middle is because the MCS-51 interface is 5V. If it is a 3.3V microcontroller, the wiring will be simpler! RA8889, RA8876, etc. are all 3.3V.

欧豪等等

From reading the post, can we understand that: Machine intelligence simulates human intelligence, is related to automation, and the part that overlaps with AI belongs to the category of weak artificial intelligence?