<?xml version="1.0" encoding="utf-8" ?><rss version="2.0"><channel><title><![CDATA[py031125的博客]]></title><description><![CDATA[]]></description><link>https://blog.youkuaiyun.com/py031125</link><language>zh-cn</language><generator>https://blog.youkuaiyun.com/</generator><copyright><![CDATA[Copyright &copy; py031125]]></copyright><item><title><![CDATA[基于GD32H7的SD卡Bootloader代码,以及BUG解决]]></title><link>https://blog.youkuaiyun.com/py031125/article/details/144586535</link><guid>https://blog.youkuaiyun.com/py031125/article/details/144586535</guid><author>py031125</author><pubDate>Thu, 19 Dec 2024 16:18:41 +0800</pubDate><description><![CDATA[目的是实现GD32H759系统板的SD卡bootloader,进行SD卡升级,思路可以参考硬汉哥的教学流程就是通过外部设备获取代码的二进制可执行文件,也就是bin文件,可以直接写入到内部Flash中执行.为此为了减少上位机的依赖,我选择使用SD卡来存储bin文件,读取后写入Flash中,通过板载的按键来切换升级代码或者直接启动APP.]]></description><category></category></item><item><title><![CDATA[GD32H759 USART 使能IDLE+DMA接受 以及DMA发送]]></title><link>https://blog.youkuaiyun.com/py031125/article/details/144317823</link><guid>https://blog.youkuaiyun.com/py031125/article/details/144317823</guid><author>py031125</author><pubDate>Sat, 07 Dec 2024 22:28:46 +0800</pubDate><description><![CDATA[GD32H759 IDLE DMA]]></description><category></category></item><item><title><![CDATA[STM32H7使用HAL库驱动3.5寸SPI电容触摸屏幕+DMA刷新]]></title><link>https://blog.youkuaiyun.com/py031125/article/details/140108928</link><guid>https://blog.youkuaiyun.com/py031125/article/details/140108928</guid><author>py031125</author><pubDate>Mon, 01 Jul 2024 20:56:09 +0800</pubDate><description><![CDATA[先上效果使用100mhz的SPI频率,在不使用DMA情况下,大约10帧左右,加上DMA后提高到接近40帧.使用480*320*2大小的缓冲区,如果单纯刷屏可以减小到HAL库SPI发送函数最大长度.因为缓冲区过大所以分几次发送的.]]></description><category></category></item><item><title><![CDATA[esp32cam摄像+上位机opencv人脸识别]]></title><link>https://blog.youkuaiyun.com/py031125/article/details/138286781</link><guid>https://blog.youkuaiyun.com/py031125/article/details/138286781</guid><author>py031125</author><pubDate>Sun, 28 Apr 2024 19:49:14 +0800</pubDate><description><![CDATA[利用esp32cam做摄像头 通过wifi传输 python上位机进行opencv人脸识别]]></description><category></category></item><item><title><![CDATA[ESP32+hcsr04的超声波模拟雷达]]></title><link>https://blog.youkuaiyun.com/py031125/article/details/136133259</link><guid>https://blog.youkuaiyun.com/py031125/article/details/136133259</guid><author>py031125</author><pubDate>Tue, 27 Feb 2024 18:09:03 +0800</pubDate><description><![CDATA[由于需要做到模拟雷达的效果,所以需要更好的oled库,导入u8g2库,使用也很简单通过platformio中搜索u8g2库添加到该项目,同理,添加esp32servo库,将舵机库引入项目。io16接舵机信号线,io21和io22是i2c通信,21接屏幕SDA,22接SCL,io15接超声波trig,io2接echo,利用sin,cos数据记录每个角度的正余弦值,pos记录该点距离,speed,time,max参数在后面会用到。使用0.96寸oled,hcsr04,esp32,sg90舵机.]]></description><category></category></item><item><title><![CDATA[数据库期末作业,Python+sqlserver的学生成绩管理系统]]></title><link>https://blog.youkuaiyun.com/py031125/article/details/135685451</link><guid>https://blog.youkuaiyun.com/py031125/article/details/135685451</guid><author>py031125</author><pubDate>Fri, 16 Feb 2024 22:15:53 +0800</pubDate><description><![CDATA[属于是数据库大作业最后几天赶工,以前也没试过带数据库的作业,最后写出来这个,可能写的不是太好但是作为学习的一部分也发出来]]></description><category></category></item></channel></rss>