<?xml version="1.0" encoding="utf-8" ?><rss version="2.0"><channel><title><![CDATA[时光漫走]]></title><description><![CDATA[]]></description><link>https://blog.youkuaiyun.com/asn1111</link><language>zh-cn</language><generator>https://blog.youkuaiyun.com/</generator><copyright><![CDATA[Copyright &copy; asn1111]]></copyright><item><title><![CDATA[STM32 SDIO WiFi模块推荐：高速传输、超低功耗，赋能智能硬件！]]></title><link>https://blog.youkuaiyun.com/asn1111/article/details/145244973</link><guid>https://blog.youkuaiyun.com/asn1111/article/details/145244973</guid><author>asn1111</author><pubDate>Sun, 19 Jan 2025 17:31:32 +0800</pubDate><description><![CDATA[如果有可以沟通邮箱xlx@xlxwlan.com。threadx/freertos代码可以参考。]]></description><category></category></item><item><title><![CDATA[Ubuntu 改变字体大小]]></title><link>https://blog.youkuaiyun.com/asn1111/article/details/143243829</link><guid>https://blog.youkuaiyun.com/asn1111/article/details/143243829</guid><author>asn1111</author><pubDate>Fri, 25 Oct 2024 21:08:23 +0800</pubDate><description><![CDATA[gsettings set org.gnome.desktop.interface text-scaling-factor 3.0]]></description><category></category></item><item><title><![CDATA[cyw43012 wifi+蓝牙二合一模块推荐]]></title><link>https://blog.youkuaiyun.com/asn1111/article/details/142145287</link><guid>https://blog.youkuaiyun.com/asn1111/article/details/142145287</guid><author>asn1111</author><pubDate>Wed, 11 Sep 2024 17:17:11 +0800</pubDate><description><![CDATA[8、功耗DTIM10 70uA。]]></description><category></category></item><item><title><![CDATA[Azure RTOS/Eclipse ThreadX 系统高性能wifi蓝牙二合一模块介绍]]></title><link>https://blog.youkuaiyun.com/asn1111/article/details/142134334</link><guid>https://blog.youkuaiyun.com/asn1111/article/details/142134334</guid><author>asn1111</author><pubDate>Wed, 11 Sep 2024 11:08:31 +0800</pubDate><description><![CDATA[如果有可以沟通邮箱xlx@xlxwlan.com。threadx/freertos代码可以参考。]]></description><category></category></item><item><title><![CDATA[国产操作系统RT-Thread 高性能 WiFi蓝牙二合一 模块 解决方案介绍]]></title><link>https://blog.youkuaiyun.com/asn1111/article/details/135939809</link><guid>https://blog.youkuaiyun.com/asn1111/article/details/135939809</guid><author>asn1111</author><pubDate>Tue, 30 Jan 2024 19:25:01 +0800</pubDate><description><![CDATA[新联鑫威低功耗高性价比sdio wifi/蓝牙combo的模块单频2.4g的CYWL6208，双频2.4g/5g CYWL6312可以应用到一些低延时 高性能 低功耗 联网需求的交流直流充电桩，扭力扳手，agv机器人，目前支持主流的stm32F4/GD32F4 瑞萨 psoc的主控，目前有多家公司已经用到了他们的产品，通过fcc ce等认证，驱动有英飞凌的开源的WHD的驱动可供移植到各种mcu平台，链接地址：CYWL6208 模块参数介绍:CYWL6312 模块参数介绍:]]></description><category></category></item><item><title><![CDATA[sta模式切换]]></title><link>https://blog.youkuaiyun.com/asn1111/article/details/132712598</link><guid>https://blog.youkuaiyun.com/asn1111/article/details/132712598</guid><author>asn1111</author><pubDate>Wed, 06 Sep 2023 12:07:29 +0800</pubDate><description><![CDATA[nmcli device set wlan1 managed no]]></description><category></category></item><item><title><![CDATA[mqtt 接入阿里云]]></title><link>https://blog.youkuaiyun.com/asn1111/article/details/130935360</link><guid>https://blog.youkuaiyun.com/asn1111/article/details/130935360</guid><author>asn1111</author><pubDate>Mon, 29 May 2023 20:01:05 +0800</pubDate><description><![CDATA[发布消息},订阅消息。]]></description><category></category></item><item><title><![CDATA[Ubuntu清理磁盘通过Stacer工具]]></title><link>https://blog.youkuaiyun.com/asn1111/article/details/125117920</link><guid>https://blog.youkuaiyun.com/asn1111/article/details/125117920</guid><author>asn1111</author><pubDate>Sat, 04 Jun 2022 00:42:15 +0800</pubDate><description><![CDATA[Ubuntu]]></description><category></category></item><item><title><![CDATA[Linux系统蓝牙WiFi抓包命令]]></title><link>https://blog.youkuaiyun.com/asn1111/article/details/123732675</link><guid>https://blog.youkuaiyun.com/asn1111/article/details/123732675</guid><author>asn1111</author><pubDate>Fri, 25 Mar 2022 12:36:21 +0800</pubDate><description><![CDATA[蓝牙抓包
hcidump -XVt &gt; sdcard/hcidumplog.txt

wifi抓包
tcpdump -w -i 接口 xxx.pcap
]]></description><category></category></item><item><title><![CDATA[Linux core 文件分析 如何定位错误]]></title><link>https://blog.youkuaiyun.com/asn1111/article/details/123107134</link><guid>https://blog.youkuaiyun.com/asn1111/article/details/123107134</guid><author>asn1111</author><pubDate>Thu, 24 Feb 2022 11:05:03 +0800</pubDate><description><![CDATA[1、vim core_dump_test.c

#include &lt;stdio.h&gt;

void main()
{
int stack_of[100000000];
int b=1;
int* a;
*a=b;

}
2、gcc -g core_dump_test.c -o core_dump_test

3、./core_dump_test
Segmentation fault (core dumped)

4、生成core文件分析

4.1、ulimit -c unlimited
...]]></description><category></category></item><item><title><![CDATA[ftrace使用]]></title><link>https://blog.youkuaiyun.com/asn1111/article/details/104620463</link><guid>https://blog.youkuaiyun.com/asn1111/article/details/104620463</guid><author>asn1111</author><pubDate>Sun, 05 Dec 2021 14:08:51 +0800</pubDate><description><![CDATA[static VOS_STATUS find_ie_data_after_fils_session_ie(tpAniSirGlobal mac_ctx,
  uint8_t *buf,
  uint32_t buf_len,
  uint8_t **ie,
  uint32_t *ie_len)
{
 uint32_t left = buf_l...]]></description><category></category></item><item><title><![CDATA[Linux 打 patch 和生成 patch]]></title><link>https://blog.youkuaiyun.com/asn1111/article/details/106080497</link><guid>https://blog.youkuaiyun.com/asn1111/article/details/106080497</guid><author>asn1111</author><pubDate>Sun, 05 Dec 2021 14:06:37 +0800</pubDate><description><![CDATA[patch



打patch： patch -p0 &lt; test.patch  -p0 选项要从当前目录查找目的文件 

patch -p1 &lt; test.patch -p1 选项要从当前目录查找目的文件，不包含patch中的最上级目录 例如两个版本以a,b开头，而a,b并不是真正有效地代码路径，则这时候需要使用"-p1"参数。 a/src/... b/src/...
...]]></description><category></category></item><item><title><![CDATA[usb驱动程序实现]]></title><link>https://blog.youkuaiyun.com/asn1111/article/details/119717080</link><guid>https://blog.youkuaiyun.com/asn1111/article/details/119717080</guid><author>asn1111</author><pubDate>Sun, 15 Aug 2021 17:54:46 +0800</pubDate><description><![CDATA[1、代码如下




/*

 * drivers\hid\usbhid\usbmouse.c

 */



#include &lt;linux/kernel.h&gt;

#include &lt;linux/slab.h&gt;

#include &lt;linux/module.h&gt;

#include &lt;linux/init.h&gt;

#include &lt;linux/usb/input.h&gt;

#include &lt;linux/hid.h&gt;





/*]]></description><category></category></item><item><title><![CDATA[内存泄漏检测工具valgrind神器]]></title><link>https://blog.youkuaiyun.com/asn1111/article/details/116483218</link><guid>https://blog.youkuaiyun.com/asn1111/article/details/116483218</guid><author>asn1111</author><pubDate>Fri, 07 May 2021 10:14:51 +0800</pubDate><description><![CDATA[1概述
1.1 介绍
Valgrind是一套Linux下，开放源代码（GPL V2）的仿真调试工具的集合。Valgrind由内核（core）以及基于内核的其他调试工具组成。内核类似于一个框架（framework），它模拟了一个CPU环境，并提供服务给其他工具；而其他工具则类似于插件 (plug-in)，利用内核提供的服务完成各种特定的内存调试任务。Valgrind的体系结构如下图所示：





图1
1.2 工具
Valgrind的最新版是3.11.0，它一般包含下列工具：
1.Memcheck
最常用.]]></description><category></category></item><item><title><![CDATA[阻抗匹配及Smith圆图简介笔记]]></title><link>https://blog.youkuaiyun.com/asn1111/article/details/116483100</link><guid>https://blog.youkuaiyun.com/asn1111/article/details/116483100</guid><author>asn1111</author><pubDate>Fri, 07 May 2021 10:12:56 +0800</pubDate><description><![CDATA[在了解阻抗匹配及Smith圆图时，先来了解几个相关参数。

　　1、反射系数

　　信号沿传输线向前传播时，每时每刻都会感受到一个瞬态阻抗，这个阻抗可能是传输线本身的，也可能是中途或末端其他元件的。对于信号来说，它不会区分到底是什么，信号所感受到的只有阻抗。如果信号感受到的阻抗是恒定的，那么他就会正常向前传播，只要感受到的阻抗发生变化，不论是什么引起的（可能是中途遇到的电阻，电容，电感，过孔，PCB转角，接插件），信号都会发生反射。



　　归一化负载阻抗：



　　所以：



　　当中的Γ代表其线路]]></description><category></category></item><item><title><![CDATA[SDIO电路设计注意事项]]></title><link>https://blog.youkuaiyun.com/asn1111/article/details/110775367</link><guid>https://blog.youkuaiyun.com/asn1111/article/details/110775367</guid><author>asn1111</author><pubDate>Sun, 06 Dec 2020 21:52:12 +0800</pubDate><description><![CDATA[SDIO电路设计注意事项

SDIO走线速率较高，尽量控制寄生电容
CMD、D0~D3走线长度以CLK走线长度为基准±3mil，需要时绕蛇形线
CLK走线尽量单独包地，从芯片管脚到SD接口的总长度越短越好，控制在2500mil以内，最好在2000mil以内
SDIO走线要保证不跨平面
射频走线最为理想的是微带线50Ohm管控，而不是共面波导50Ohm管控；同时射频走线上方能不铺绿油就不要铺绿油
电源走线能粗就粗一点，没坏处
模组PCB表面工艺一定要沉金1oz，有钱可以尝试2oz，但一定不能喷锡和裸铜
板材要]]></description><category></category></item><item><title><![CDATA[Ubuntu如何修改网卡的名字 wlan0 eth0]]></title><link>https://blog.youkuaiyun.com/asn1111/article/details/109345011</link><guid>https://blog.youkuaiyun.com/asn1111/article/details/109345011</guid><author>asn1111</author><pubDate>Wed, 28 Oct 2020 21:34:41 +0800</pubDate><description><![CDATA[1、ip link set 现在的名字 name 要改成的名字


]]></description><category></category></item><item><title><![CDATA[Linux下如何限制网速]]></title><link>https://blog.youkuaiyun.com/asn1111/article/details/107736040</link><guid>https://blog.youkuaiyun.com/asn1111/article/details/107736040</guid><author>asn1111</author><pubDate>Sat, 01 Aug 2020 20:17:35 +0800</pubDate><description><![CDATA[sudo tc qdisc add dev wlx009569eadcc8 root handle 1: htb
sudo tc class add dev wlx009569eadcc8 parent 1: classid 1:10 htb rate 10mbit
sudo tc filter add dev wlx009569eadcc8 protocol ip parent 1:0 prio 10 u32 match ip dport 5201 0xfff flowid 1:10
perf3 -c 1]]></description><category></category></item><item><title><![CDATA[wifi-sdio接口学习]]></title><link>https://blog.youkuaiyun.com/asn1111/article/details/105033134</link><guid>https://blog.youkuaiyun.com/asn1111/article/details/105033134</guid><author>asn1111</author><pubDate>Sun, 22 Mar 2020 19:05:11 +0800</pubDate><description><![CDATA[转发

https://www.cnblogs.com/oracleloyal/p/5624339.html
]]></description><category></category></item><item><title><![CDATA[openssl-1.1.1交叉编译]]></title><link>https://blog.youkuaiyun.com/asn1111/article/details/104597932</link><guid>https://blog.youkuaiyun.com/asn1111/article/details/104597932</guid><author>asn1111</author><pubDate>Sun, 01 Mar 2020 19:23:54 +0800</pubDate><description><![CDATA[1、下载地址https://www.openssl.org/source/

2、解压

openssl-1.1.1d.tar.gz

3、修改Makefile 注释掉以下

#CNF_CFLAGS=-pthread -m64
#CNF_CXXFLAGS=-std=c++11 -pthread -m64
#CC=$(CROSS_COMPILE)gcc   #注释掉
#CXX=$(CRO...]]></description><category></category></item></channel></rss>