庄山浪水

Generate Code Generate Done Generate Assets make -f simulator/gcc/Makefile assets -j8 Reading ./application.config generated/simulator/gcc/Makefile:219: recipe for target 'texts' failed D:/TouchGFX/4.15.0/env...

# flashcp rootfs.bin/dev/mtd3flashcp: verification mismatch at 0x0# flashcp -v rootfs.bin /dev/mtd3Erasing block: 75/75 (100%)Writing kb: 4745/4745 (100%)Verifying kb: 0/4745 (0%) f...

[ 41.281340] BUG: sleeping function called from invalid context at kernel/rwsem.c:20[ 41.289234] in_atomic(): 1, irqs_disabled(): 0, pid: 0, name: swapper[ 41.296619] Restarting system.由于旧...

isvp_t20# sf probeSF: Unsupported manufacturer ffFailed to initialize SPI flash at 0:0--->probe spend 6 msflash 坏了换了一个flash OKisvp_t20# sf probethe manufacturer efSF: Detected W25Q128...

433发送模块硬件：载波要强劲（更换天线，电阻，引脚电压3.3V等），433芯片的第5引脚电压3.3v，程序跑起来如果低于3.3v，则载波的功率太低，发送的波形，接受端学习不到。第四脚可以通过示波器看到波形。应用程序多线程里发送433的波形会被拉长，里面有usleep函数，尝试在应用层用popen函数和实时线程FIFO，发送5次，接收端才能收到一次，但有时会失败。所以把433发送端写成驱动，用...

[ 472.159277] mmcblk0: unknown error -1 sending read/write command, card status 0xb00[ 472.181708] end_request: I/O error, dev mmcblk0, sector 0[ 472.188043] Buffer I/O error on device mmcblk0, l...

[ 378.520104] bad: scheduling from the idle thread![ 378.525371] BUG: scheduling while atomic: swapper/0/0x00000102[ 378.531808] bad: scheduling from the idle thread![ 378.537047] BUG: scheduli...

在线HMAC计算器：https://1024tools.com/hmachttp://tool.oschina.net/encrypt?type=2shell： # 随机字符串5位 rand=$(date +%s%N | sha1sum | head -c 5) echo "rand : $rand" # 准备签名字符串 sign...

[root@localhost yum.repos.d]# yum list  jqLoaded plugins: auto-update-debuginfo, fastestmirror, langpacksRepository c7-media is listed more than once in the configurationLoading mirror speeds fr...

有线：ip addr flush dev eth0WiFi：ip addr flush dev wlan0

[root@Ingenic-uc1_1:lib]# cp libnl-genl-3.so.200 libssl.so.1.0.0  /system/lib/[  123.532654] jffs2: Node totlen on flash (0xffffffff) != totlen from node ref (0x0000000c)[  124.158451] jffs2: Node...

Error for wireless request "Set channel" (8B04); ret = -6SET failed on device wlan0 ; Invalid argument.#  iwlist wlan0 channelwlan0     13 channels in total; available frequencies :          Ch...

  1 #include <stdio.h>  2 #include <stdlib.h>  3 #include <sys/socket.h>  4 #include <errno.h>  6   7 int main(void)  8 {  9         int sockfd; 10  11         sockfd ...

MIPS架构，跑应用程序后， 执行poweroff，   系统重启了！原因：串口板漏电，pwr_on一直为高，导致poweroff后，系统重启。

Linux 关机：shutdownpoweroffinit 0haltMIPS架构，执行poweroff  Linux系统后，断不了电，pw_on引脚一直为高。再次开机不行。需要拔电源线彻底断电，才能再开机。解决：内核加rtc时钟。时钟频率24M。kernel/driver/rtc/Kconfig里 加选项；在make menuconfig 里面选择，编译。测试...

[  435.516111] Unhandled kernel unaligned access[#1]:[  435.521069] CPU: 0 PID: -1987605879 Comm: gjkififegjkififegjki Tainted: G           O 3.10.14__xxxx_xxxx_1.0__ #26[  435.531936] task: 91f71...

WiFi模块内置无线网络协议IEEE802.11协议栈以及TCP/IP协议栈，实现用户串口或TTL电平信息与无线网络之间的转换。WiFi模块两种拓扑类型：基础网(Infra)和自组网(Adhoc)；AP模式：Access Point。提供无线接入服务，是无线网络的创建者，允许其他无线设备接入，是网络的中心节点，如无线路由器是一个AP，AP与AP之间可以互连。AP模式下，手机，电脑等设备直接连上模块...