AG32VF407 Test UART

前程晨

AG32VF407 Test UART [Copy link]

 

# UART test (debugging serial port as an example) This chapter mainly performs configuration test on UART part, how to configure and how to test. After the previous study and test, we have a general understanding. We need to configure our ve file first, and then configure the parameters of UART. **Directory** [TOCM] # Prerequisites Summary Program burning tool: jlink-ob (currently there is no big problem): Onion-11: 1. First create a new uart project 2. Add the necessary files for the project. The GPIO test items have been named above, and you can refer to the GPIO test items 3. Modify ini, ve files to ensure that the board can run normally (refer to GPIO) 4. Modify the configuration items for the uart project## ini file configuration <ignore_js_op> <img style="cursor:pointer;" id="aimg_723268" aid="723268" src="/bbs/static/image/common/none.gif" onclick="zoom(this, this.getAttribute('zoomfile'), 0, 0, '0')" zoomfile="//bbs.eeworld.com.cn/data/attachment/forum/202308/11/135155xy30ig283z3gmyyy.png" file="//bbs.eeworld.com.cn/data/attachment/forum/202308/11/135155xy30ig283z3gmyyy.png" inpost="1" onmouseover="showMenu({'ctrlid':this.id,'pos':'12'})" /> <div class="tip tip_4 aimg_tip" id="aimg_723268_menu" style="position: absolute; display: none" disautofocus="true"> <div class="xs0"> <p><strong>uart的ini文件配置.png</strong> <em class="xg1">(6.38 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_723268" url="home.php?mod=spacecp&ac=album&op=saveforumphoto&aid=723268&handlekey=savephoto_723268">save to album</a> </p> <p class="xg1 y">2023-8-11 13:51 上传</p> </div> <div class="tip_horn"></div> </div> </ignore_js_op> The serial port is changed to `UART0` The COM port corresponds to the port baud rate of the computer's serial port is configured to `115200` jlink burning##ve file configuration <ignore_js_op> <img style="cursor:pointer;" id="aimg_723273" aid="723273" src="/bbs/static/image/common/none.gif" onclick="zoom(this, this.getAttribute('zoomfile'), 0, 0, '0')" zoomfile="//bbs.eeworld.com.cn/data/attachment/forum/202308/11/140539m7ywjtmsmkwzd0wd.png" file="//bbs.eeworld.com.cn/data/attachment/forum/202308/11/140539m7ywjtmsmkwzd0wd.png" inpost="1" onmouseover="showMenu({'ctrlid':this.id,'pos':'12'})" /> <div class="tip tip_4 aimg_tip" id="aimg_723273_menu" style="position: absolute; display: none" disautofocus="true"> <div class="xs0"> <p><strong>uart的ve文件配置.png</strong> <em class="xg1">(7.35 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_723273" url="home.php?mod=spacecp&ac=album&op=saveforumphoto&aid=723273&handlekey=savephoto_723273">save to album</a> </p> <p class="xg1 y">2023-8-11 14:05 上传</p> </div> <div class="tip_horn"></div> </div> </ignore_js_op> According to the schematic diagram, configure UART to the corresponding pins, which should be PA9 (tx) and PA10 (rx). Leave other parameters unchanged. ##Burn ve file. The changed ve file needs to be re-burned to ensure the correct logic in the chip. Error Problem 1. Problem prompt when burning ve file <ignore_js_op> <img style="cursor:pointer;" id="aimg_723277" aid="723277" src="/bbs/static/image/common/none.gif" onclick="zoom(this, this.getAttribute('zoomfile'), 0, 0, '0')" zoomfile="//bbs.eeworld.com.cn/data/attachment/forum/202308/11/141454oits6m8w6tswtmky.png" file="//bbs.eeworld.com.cn/data/attachment/forum/202308/11/141454oits6m8w6tswtmky.png" inpost="1" onmouseover="showMenu({'ctrlid':this.id,'pos':'12'})" /> <div class="tip tip_4 aimg_tip" id="aimg_723277_menu" style="position: absolute; display: none" disautofocus="true"> <div class="xs0"> <p><strong>error：烧录ve文件.png</strong> <em class="xg1">(14.25 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_723277" url="home.php?mod=spacecp&ac=album&op=saveforumphoto&aid=723277&handlekey=savephoto_723277">save to album</a> </p> <p class="xg1 y">2023-8-11 14:14 上传</p> </div> <div class="tip_horn"></div> </div> </ignore_js_op> Solution: Check whether the ve file path is correct. You need to recompile it before burning the ve file. You also need to recompile the following when reopening vscode, and then burn the ve file. ##main.c program ps: In order to better understand the details of the entire SDK, we will break it down step by step <ignore_js_op> <img style="cursor:pointer;" id="aimg_723278" aid="723278" src="/bbs/static/image/common/none.gif" onclick="zoom(this, this.getAttribute('zoomfile'), 0, 0, '0')" zoomfile="//bbs.eeworld.com.cn/data/attachment/forum/202308/11/141921imvmixr2biueixi1.png" file="//bbs.eeworld.com.cn/data/attachment/forum/202308/11/141921imvmixr2biueixi1.png" inpost="1" onmouseover="showMenu({'ctrlid':this.id,'pos':'12'})" /> <div class="tip tip_4 aimg_tip" id="aimg_723278_menu" style="position: absolute; display: none" disautofocus="true"> <div class="xs0"> <p><strong>main程序代码.png</strong> <em class="xg1">(82.74 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_723278" url="home.php?mod=spacecp&ac=album&op=saveforumphoto&aid=723278&handlekey=savephoto_723278">save to album</a> </p> <p class="xg1 y">2023-8-11 14:19 上传</p> </div> <div class="tip_horn"></div> </div> </ignore_js_op> First, we strip out the uart-related codes in board_init in this section, including pin multiplexing, peripheral clock enable, and peripheral parameter configuration. It is worth noting that the baud rate of the serial port configured here and the baud rate of the serial port configured in the ini file are the same as `monitor_speed = 115200` is the corresponding relationship, which can be configured in the ini file. For detailed information about the macro correspondence here, please refer to the log output chapter in the introductory pdf of AG32 under VScode## Test phenomenon <ignore_js_op> <img style="cursor:pointer;" id="aimg_723281" aid="723281" src="/bbs/static/image/common/none.gif" onclick="zoom(this, this.getAttribute('zoomfile'), 0, 0, '0')" zoomfile="//bbs.eeworld.com.cn/data/attachment/forum/202308/11/143020dczieuailyaaezxb.png" file="//bbs.eeworld.com.cn/data/attachment/forum/202308/11/143020dczieuailyaaezxb.png" inpost="1" onmouseover="showMenu({'ctrlid':this.id,'pos':'12'})" /> <div class="tip tip_4 aimg_tip" id="aimg_723281_menu" style="position: absolute; display: none" disautofocus="true"> <div class="xs0"> <p><strong>uart测试.png</strong> <em class="xg1">(29.34 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_723281" url="home.php?mod=spacecp&ac=album&op=saveforumphoto&aid=723281&handlekey=savephoto_723281">save to album</a> </p> <p class="xg1 y">2023-8-11 14:30 上传</p> </div> <div class="tip_horn"></div> </div> </ignore_js_op> After the above steps, the test passed!

jobszheng5

With that small FPGA module, it is much more convenient to realize the RS485 pin direction drive control.

秦天qintian0303

It feels much simpler than writing programs for microcontrollers.

dukedz

jobszheng5 posted on 2023-8-11 16:48 With that small FPGA module, it is much more convenient to realize the RS485 pin direction drive control

Put the open source cdbus.org ip core into the fpga, for rs485 it is not just about controlling the direction

yhk_1987

The most important thing is practice. You must have a hardware platform that can show you. Without this, everything is just talk.