【Jihai APM32F407 Tiny Board】 5. IAP upgrade based on LWIP

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【Jihai APM32F407 Tiny Board】 5. IAP upgrade based on LWIP [Copy link]

# 1 LWIP ## 1.1 Introduction to LWIP LwIP is a lightweight TCP/IP protocol. It is a small open source TCP/IP protocol stack developed by Adam Dunkels of the Swedish Institute of Computer Science (SICS). It reduces resource usage while maintaining the main functions of the TCP protocol. In addition, LwIP can be ported to an operating system or run independently without an operating system. You can download the source code packages and corresponding contrib packages of various versions of LwIP from the website http://savannah.nongnu.org/projects/lwip/. This plan is to upgrade the LWIP network transmission firmware based on the previous LWIP porting. ## 1.2 Hardware Design The development board uses the APM32F407 controller to connect to the LAN8720A Ethernet PHY through the RMII interface and the SMI interface. By connecting a pull-down resistor to set the nINTSEL pin to a low level, the output function of the nINT/REFCLKO pin is enabled to provide a clock signal for the REF_CLK signal line in the RMII interface. In terms of hardware, a 25MHz clock is connected between XTAL1 and XTAL2. After the internal PLL circuit of LAN8720A is used to provide a 50MHz clock, the output clock signal of the nINT/REFCLKO pin is a 50MHz clock. <ignore_js_op> <img style="cursor:pointer;" id="aimg_797263" aid="797263" src="static/image/common/none.gif" onclick="zoom(this, this.getAttribute('zoomfile'), 0, 0, '0')" zoomfile="data/attachment/forum/202403/24/233025xchfk8fn386unf5b.png" file="data/attachment/forum/202403/24/233025xchfk8fn386unf5b.png" inpost="1" onmouseover="showMenu({'ctrlid':this.id,'pos':'12'})" /> <div class="tip tip_4 aimg_tip" id="aimg_797263_menu" style="position: absolute; display: none" disautofocus="true"> <div class="xs0"> <p><strong>1.png</strong> <em class="xg1">(114.87 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_797263" url="home.php?mod=spacecp&ac=album&op=saveforumphoto&aid=797263&handlekey=savephoto_797263">save to album</a> </p> <p class="xg1 y">2024-3-24 23:30 上传</p> </div> <div class="tip_horn"></div> </div> </ignore_js_op> # 2 Migration steps## 2.1 Bootloader configuration Since the lwip code is added to the bootloader program, the size of the bootloader needs to be adjusted. After preliminary compilation, it takes about 30k. It is adjusted to a larger size for the experiment here, 200k <ignore_js_op> <img id="aimg_797264" style="cursor:pointer;" aid="797264" src="static/image/common/none.gif" zoomfile="data/attachment/forum/202403/24/233025kpg0i6gz60gdqgzs.png" file="data/attachment/forum/202403/24/233025kpg0i6gz60gdqgzs.png" class="zoom" onclick="zoom(this, this.src, 0, 0, 0)" width="609" id="aimg_797264" inpost="1" onmouseover="showMenu({'ctrlid':this.id,'pos':'12'})" /> <div class="tip tip_4 aimg_tip" id="aimg_797264_menu" style="position: absolute; display: none" disautofocus="true"> <div class="xs0"> <p><strong>2.png</strong> <em class="xg1">(16.6 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_797264" url="home.php?mod=spacecp&ac=album&op=saveforumphoto&aid=797264&handlekey=savephoto_797264">save to album</a> </p> <p class="xg1 y">2024-3-24 23:30 上传</p> </div> <div class="tip_horn"></div> </div> </ignore_js_op> For application configuration, you only need to adjust the starting address of the APP. <ignore_js_op> <img id="aimg_797265" style="cursor:pointer;" aid="797265" src="static/image/common/none.gif" zoomfile="data/attachment/forum/202403/24/233026anqrlnsqxnuamrqg.png" file="data/attachment/forum/202403/24/233026anqrlnsqxnuamrqg.png" class="zoom" onclick="zoom(this, this.src, 0, 0, 0)" width="620" id="aimg_797265" inpost="1" onmouseover="showMenu({'ctrlid':this.id,'pos':'12'})" /> <div class="tip tip_4 aimg_tip" id="aimg_797265_menu" style="position: absolute; display: none" disautofocus="true"> <div class="xs0"> <p><strong>3.png</strong> <em class="xg1">(26.32 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_797265" url="home.php?mod=spacecp&ac=album&op=saveforumphoto&aid=797265&handlekey=savephoto_797265">save to album</a> </p> <p class="xg1 y">2024-3-24 23:30 上传</p> </div> <div class="tip_horn"></div> </div> </ignore_js_op> At the same time, only a simple example is needed in the application APP program, which flashes the LED once every 2s <ignore_js_op> <img style="cursor:pointer;" id="aimg_797266" aid="797266" src="static/image/common/none.gif" onclick="zoom(this, this.getAttribute('zoomfile'), 0, 0, '0')" zoomfile="data/attachment/forum/202403/24/233026a2z885x8ix1mz22a.png" file="data/attachment/forum/202403/24/233026a2z885x8ix1mz22a.png" inpost="1" onmouseover="showMenu({'ctrlid':this.id,'pos':'12'})" /> <div class="tip tip_4 aimg_tip" id="aimg_797266_menu" style="position: absolute; display: none" disautofocus="true"> <div class="xs0"> <p><strong>4.png</strong> <em class="xg1">(50.8 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_797266" url="home.php?mod=spacecp&ac=album&op=saveforumphoto&aid=797266&handlekey=savephoto_797266">save to album</a> </p> <p class="xg1 y">2024-3-24 23:30 上传</p> </div> <div class="tip_horn"></div> </div> </ignore_js_op> Next, establish the TcpServer server in the bootloader, set the port to 80, and the code is based on the lwip transplantation and the serial port IAP upgrade project. <ignore_js_op> <img style="cursor:pointer;" id="aimg_797267" aid="797267" src="static/image/common/none.gif" onclick="zoom(this, this.getAttribute('zoomfile'), 0, 0, '0')" zoomfile="data/attachment/forum/202403/24/233026mcuf9gp3p11sbghx.png" file="data/attachment/forum/202403/24/233026mcuf9gp3p11sbghx.png" inpost="1" onmouseover="showMenu({'ctrlid':this.id,'pos':'12'})" /> <div class="tip tip_4 aimg_tip" id="aimg_797267_menu" style="position: absolute; display: none" disautofocus="true"> <div class="xs0"> <p><strong>5.png</strong> <em class="xg1">(24.27 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_797267" url="home.php?mod=spacecp&ac=album&op=saveforumphoto&aid=797267&handlekey=savephoto_797267">save to album</a> </p> <p class="xg1 y">2024-3-24 23:30 上传</p> </div> <div class="tip_horn"></div> </div> </ignore_js_op> Lwip receives data callback function, connects to send a message to the server to prove that communication is established <ignore_js_op> <img style="cursor:pointer;" id="aimg_797268" aid="797268" src="static/image/common/none.gif" onclick="zoom(this, this.getAttribute('zoomfile'), 0, 0, '0')" zoomfile="data/attachment/forum/202403/24/233027xb6gjjg2d5mgg7db.png" file="data/attachment/forum/202403/24/233027xb6gjjg2d5mgg7db.png" inpost="1" onmouseover="showMenu({'ctrlid':this.id,'pos':'12'})" /> <div class="tip tip_4 aimg_tip" id="aimg_797268_menu" style="position: absolute; display: none" disautofocus="true"> <div class="xs0"> <p><strong>6.png</strong> <em class="xg1">(22.72 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_797268" url="home.php?mod=spacecp&ac=album&op=saveforumphoto&aid=797268&handlekey=savephoto_797268">save to album</a> </p> <p class="xg1 y">2024-3-24 23:30 上传</p> </div> <div class="tip_horn"></div> </div> </ignore_js_op> Next is the callback function after receiving data, first return the received data to the server <ignore_js_op> <img style="cursor:pointer;" id="aimg_797269" aid="797269" src="static/image/common/none.gif" onclick="zoom(this, this.getAttribute('zoomfile'), 0, 0, '0')" zoomfile="data/attachment/forum/202403/24/233027uaxrxqd0kxtqzqrg.png" file="data/attachment/forum/202403/24/233027uaxrxqd0kxtqzqrg.png" inpost="1" onmouseover="showMenu({'ctrlid':this.id,'pos':'12'})" /> <div class="tip tip_4 aimg_tip" id="aimg_797269_menu" style="position: absolute; display: none" disautofocus="true"> <div class="xs0"> <p><strong>7.png</strong> <em class="xg1">(40.5 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_797269" url="home.php?mod=spacecp&ac=album&op=saveforumphoto&aid=797269&handlekey=savephoto_797269">save to album</a> </p> <p class="xg1 y">2024-3-24 23:30 上传</p> </div> <div class="tip_horn"></div> </div> </ignore_js_op> After implementing the Tcpserver function, implement the code upgrade part, and then put the initialization function in the main function for initialization. <ignore_js_op> <img style="cursor:pointer;" id="aimg_797270" aid="797270" src="static/image/common/none.gif" onclick="zoom(this, this.getAttribute('zoomfile'), 0, 0, '0')" zoomfile="data/attachment/forum/202403/24/233027qcjo5owyogjjrqfn.png" file="data/attachment/forum/202403/24/233027qcjo5owyogjjrqfn.png" inpost="1" onmouseover="showMenu({'ctrlid':this.id,'pos':'12'})" /> <div class="tip tip_4 aimg_tip" id="aimg_797270_menu" style="position: absolute; display: none" disautofocus="true"> <div class="xs0"> <p><strong>8.png</strong> <em class="xg1">(45.83 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_797270" url="home.php?mod=spacecp&ac=album&op=saveforumphoto&aid=797270&handlekey=savephoto_797270">save to album</a> </p> <p class="xg1 y">2024-3-24 23:30 上传</p> </div> <div class="tip_horn"></div> </div> </ignore_js_op> Open the network test tool, ping first, ping is normal <ignore_js_op> <img style="cursor:pointer;" id="aimg_797271" aid="797271" src="static/image/common/none.gif" onclick="zoom(this, this.getAttribute('zoomfile'), 0, 0, '0')" zoomfile="data/attachment/forum/202403/24/233028uzz3vjgvgl28l7qj.png" file="data/attachment/forum/202403/24/233028uzz3vjgvgl28l7qj.png" inpost="1" onmouseover="showMenu({'ctrlid':this.id,'pos':'12'})" /> <div class="tip tip_4 aimg_tip" id="aimg_797271_menu" style="position: absolute; display: none" disautofocus="true"> <div class="xs0"> <p><strong>9.png</strong> <em class="xg1">(37.84 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_797271" url="home.php?mod=spacecp&ac=album&op=saveforumphoto&aid=797271&handlekey=savephoto_797271">save to album</a> </p> <p class="xg1 y">2024-3-24 23:30 上传</p> </div> <div class="tip_horn"></div> </div> </ignore_js_op> Next, click to open TCP, you can find that the string of characters lwip Tcpserver connect is uploaded, which is written in the code, indicating success, then send data 11 to the server, return 11. Indicates that the function has been used normally <ignore_js_op> <img style="cursor:pointer;" id="aimg_797272" aid="797272" src="static/image/common/none.gif" onclick="zoom(this, this.getAttribute('zoomfile'), 0, 0, '0')" zoomfile="data/attachment/forum/202403/24/233028rm2u8p3xwkqpk7kq.png" file="data/attachment/forum/202403/24/233028rm2u8p3xwkqpk7kq.png" inpost="1" onmouseover="showMenu({'ctrlid':this.id,'pos':'12'})" /> <div class="tip tip_4 aimg_tip" id="aimg_797272_menu" style="position: absolute; display: none" disautofocus="true"> <div class="xs0"> <p><strong>10.png</strong> <em class="xg1">(42.13 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_797272" url="home.php?mod=spacecp&ac=album&op=saveforumphoto&aid=797272&handlekey=savephoto_797272">save to album</a> </p> <p class="xg1 y">2024-3-24 23:30 上传</p> </div> <div class="tip_horn"></div> </div> </ignore_js_op> ## 2.2 Adjustment of network firmware transmission Due to the serial port upgrade method used at the beginning, now we need to use lwip to implement it. From the serial port IAP upgrade, the data received by the serial port can be fixed in one area, and the lwip upgrade is the same. By storing the data received by lwip in our app segment address, we can start it by pressing the button. You can also use the serial port buffer to store the data received by lwip in the serial port upgrade buffer. First, find the interface for lwip to receive data: tatic err_t tcp1_server_recv(void *arg, struct tcp_pcb *pcb, struct pbuf *tcp_recv_pbuf, err_t err). The data received by lwip is stored in the tcp_recv_pbuf structure. <ignore_js_op> <img style="cursor:pointer;" id="aimg_797273" aid="797273" src="static/image/common/none.gif" onclick="zoom(this, this.getAttribute('zoomfile'), 0, 0, '0')" zoomfile="data/attachment/forum/202403/24/233029y5jecs2b111jljx1.png" file="data/attachment/forum/202403/24/233029y5jecs2b111jljx1.png" inpost="1" onmouseover="showMenu({'ctrlid':this.id,'pos':'12'})" /> <div class="tip tip_4 aimg_tip" id="aimg_797273_menu" style="position: absolute; display: none" disautofocus="true"> <div class="xs0"> <p><strong>11.png</strong> <em class="xg1">(42.78 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_797273" url="home.php?mod=spacecp&ac=album&op=saveforumphoto&aid=797273&handlekey=savephoto_797273">save to album</a> </p> <p class="xg1 y">2024-3-24 23:30 上传</p> </div> <div class="tip_horn"></div> </div> </ignore_js_op> Point the received data pointer to our serial port receive buffer, and take out the received length <ignore_js_op> <img id="aimg_797274" style="cursor:pointer;" aid="797274" src="static/image/common/none.gif" zoomfile="data/attachment/forum/202403/24/233029c1n1lnvmhxpxhzvb.png" file="data/attachment/forum/202403/24/233029c1n1lnvmhxpxhzvb.png" class="zoom" onclick="zoom(this, this.src, 0, 0, 0)" width="659" id="aimg_797274" inpost="1" onmouseover="showMenu({'ctrlid':this.id,'pos':'12'})" /> <div class="tip tip_4 aimg_tip" id="aimg_797274_menu" style="position: absolute; display: none" disautofocus="true"> <div class="xs0"> <p><strong>12.png</strong> <em class="xg1">(11.91 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_797274" url="home.php?mod=spacecp&ac=album&op=saveforumphoto&aid=797274&handlekey=savephoto_797274">save to album</a> </p> <p class="xg1 y">2024-3-24 23:30 上传</p> </div> <div class="tip_horn"></div> </div> </ignore_js_op> The serial port buffer data storage address <ignore_js_op> <img style="cursor:pointer;" id="aimg_797275" aid="797275" src="static/image/common/none.gif" onclick="zoom(this, this.getAttribute('zoomfile'), 0, 0, '0')" zoomfile="data/attachment/forum/202403/24/233029wwf9atc76aaf66vb.png" file="data/attachment/forum/202403/24/233029wwf9atc76aaf66vb.png" inpost="1" onmouseover="showMenu({'ctrlid':this.id,'pos':'12'})" /> <div class="tip tip_4 aimg_tip" id="aimg_797275_menu" style="position: absolute; display: none" disautofocus="true"> <div class="xs0"> <p><strong>13.png</strong> <em class="xg1">(51.91 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_797275" url="home.php?mod=spacecp&ac=album&op=saveforumphoto&aid=797275&handlekey=savephoto_797275">save to album</a> </p> <p class="xg1 y">2024-3-24 23:30 上传</p> </div> <div class="tip_horn"></div> </div> </ignore_js_op> In the main loop, upgrade the code and run the APP by detecting the button. If the data received by lwip is not 0, write the received data to the specified area. <ignore_js_op> <img style="cursor:pointer;" id="aimg_797275" aid="797275" src="static/image/common/none.gif" onclick="zoom(this, this.getAttribute('zoomfile'), 0, 0, '0')" zoomfile="data/attachment/forum/202403/24/233029wwf9atc76aaf66vb.png" file="data/attachment/forum/202403/24/233029wwf9atc76aaf66vb.png" inpost="1" onmouseover="showMenu({'ctrlid':this.id,'pos':'12'})" /> <div class="tip tip_4 aimg_tip" id="aimg_797275_menu" style="position: absolute; display: none" disautofocus="true"> <div class="xs0"> <p><strong>13.png</strong> <em class="xg1">(51.91 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_797275" url="home.php?mod=spacecp&ac=album&op=saveforumphoto&aid=797275&handlekey=savephoto_797275">save to album</a> </p> <p class="xg1 y">2024-3-24 23:30 上传</p> </div> <div class="tip_horn"></div> </div> </ignore_js_op> # 3 Verify Open the network tool. This time, we use the host computer of Wildfire. You can send files. Click Network Assistant, configure the protocol type as TCP Client, and the address and port of the development board. Click Establish Connection <ignore_js_op> <img style="cursor:pointer;" id="aimg_797276" aid="797276" src="static/image/common/none.gif" onclick="zoom(this, this.getAttribute('zoomfile'), 0, 0, '0')" zoomfile="data/attachment/forum/202403/24/233030nkr2no99w24az44t.png" file="data/attachment/forum/202403/24/233030nkr2no99w24az44t.png" inpost="1" onmouseover="showMenu({'ctrlid':this.id,'pos':'12'})" /> <div class="tip tip_4 aimg_tip" id="aimg_797276_menu" style="position: absolute; display: none" disautofocus="true"> <div class="xs0"> <p><strong>14.png</strong> <em class="xg1">(26.63 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_797276" url="home.php?mod=spacecp&ac=album&op=saveforumphoto&aid=797276&handlekey=savephoto_797276">save to album</a> </p> <p class="xg1 y">2024-3-24 23:30 上传</p> </div> <div class="tip_horn"></div> </div> </ignore_js_op> Next, click Load File in the lower right corner and select the bin file generated by the APP code, as shown below <ignore_js_op> <img style="cursor:pointer;" id="aimg_797277" aid="797277" src="static/image/common/none.gif" onclick="zoom(this, this.getAttribute('zoomfile'), 0, 0, '0')" zoomfile="data/attachment/forum/202403/24/233030qte5etf2h5t59tt5.png" file="data/attachment/forum/202403/24/233030qte5etf2h5t59tt5.png" inpost="1" onmouseover="showMenu({'ctrlid':this.id,'pos':'12'})" /> <div class="tip tip_4 aimg_tip" id="aimg_797277_menu" style="position: absolute; display: none" disautofocus="true"> <div class="xs0"> <p><strong>15.png</strong> <em class="xg1">(74.37 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_797277" url="home.php?mod=spacecp&ac=album&op=saveforumphoto&aid=797277&handlekey=savephoto_797277">save to album</a> </p> <p class="xg1 y">2024-3-24 23:30 上传</p> </div> <div class="tip_horn"></div> </div> </ignore_js_op> Click Send Data. Next, you can see the output message through the serial port. Press the button to execute the user program. <ignore_js_op> <img style="cursor:pointer;" id="aimg_797278" aid="797278" src="static/image/common/none.gif" onclick="zoom(this, this.getAttribute('zoomfile'), 0, 0, '0')" zoomfile="data/attachment/forum/202403/24/233030wqhq1lxzd6z7z6lq.png" file="data/attachment/forum/202403/24/233030wqhq1lxzd6z7z6lq.png" inpost="1" onmouseover="showMenu({'ctrlid':this.id,'pos':'12'})" /> <div class="tip tip_4 aimg_tip" id="aimg_797278_menu" style="position: absolute; display: none" disautofocus="true"> <div class="xs0"> <p><strong>16.png</strong> <em class="xg1">(53.81 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_797278" url="home.php?mod=spacecp&ac=album&op=saveforumphoto&aid=797278&handlekey=savephoto_797278">save to album</a> </p> <p class="xg1 y">2024-3-24 23:30 上传</p> </div> <div class="tip_horn"></div> </div> </ignore_js_op> The upgraded code is executed correctly, and the LED light executes according to the APP code.

みずじ

Blogger, can you provide some complete reference code