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RSS订阅原创 CSQ 档次
CSQ 范围 0-31 ，如果99 可以看成0。9 -12 1格。23 表示信号正常。26-31 5格。21-25 4格。17-20 3格。13-16 2格。
2022-08-10 16:49:31
1365
原创 mysql 主主
mv mysql-8.0.20-linux-glibc2.12-x86_64 /usr/local/mysql创建mysql用户组和用户并修改权限[root@localhost local]# groupadd mysql[root@localhost local]# useradd -r -g mysql mysql创建数据目录并赋予权限mkdir -p /data/mysql ...
2020-05-03 13:40:01
161
原创 keepalived
centos7安装环境yum install -y openssl-devel popt-devel curl gcc libnl3-devel net-snmp-devel libnfnetlink-devel安装yum install keepalived主机配置vi /etc/keepalived/keepalived.confglobal_de...
2020-05-03 13:38:39
184
原创 虚拟摄像头测试
安装xawtvsudo atp-get install xawtv查看内核版本uname -a下载相近版本内核我下载内核版本是\linux-2.6.31.14ubuntu版本是2.6.32-21把源码/Media/video目录拷贝到ubuntu下查看内核路径cd /usr/src/lslinux-headers-2.6.32-21 linux...
2019-05-31 12:32:06
3101
转载 构建根文件系统一之ubuntu12.04下安装编译BusyBox图文解说
https://blog.csdn.net/vigour1000/article/details/23543379
2019-05-30 16:14:56
85
转载 linux环境搭建
1、安装SSHsudo apt-get updatesudo sudo apt-get install openssh-serversudo ps -e |grep ssh2、在ubuntu中遇到vi 编辑器的上下左右方向金变成ABCD 时： 解决方法： cp /etc/vim/vimrc ~/.vimrc 3、vi编辑器环境变量设置：cd /etc/...
2019-05-23 14:56:52
82
转载 网址
https://blog.csdn.net/chichi123137https://www.cnblogs.com/lifexy/p/8859062.html
2019-04-22 09:17:37
89
原创 gcc
apt-get update && apt-get install -y build-essential bison flex manpages-dev sudo apt install lib32z1-dev tar xf arm-linux-gcc-3.4.5-glibc-2.3.6.tar.bz2sudo apt-get install lsb-core...
2018-12-08 11:32:21
131
原创 KEY
unsigned char KEY0 = 0;unsigned char KEY1 = 0;unsigned char KeyVal = 0;unsigned int KeyPressTime = 0;void KeyScan(void){ static unsigned char i = 0, j = 0 ; if( KEY0 ==1 && KEY...
2018-09-28 15:26:45
284
原创 stm32 pwm
PWM StartMX_TIM8_Init();HAL_TIM_PWM_Start(&htim8, TIM_CHANNEL_4);void user_pwm_setvalue(uint16_t value){ TIM_OC_InitTypeDef sConfigOC; sConfigOC.OCMode = TIM_OCMODE_PWM1; sConfigOC.Pulse...
2018-07-07 09:22:02
410
原创 解读OSAL流程
平时我们在写单片机程序时候基本是main方法里边对外设初始化，然后在while（1）里边写任务函数。OSAL也是这样的流程。我们首先找到main方法：int main(void){ /* Initialize hardware */ HAL_BOARD_INIT(); // Initialize board I/O InitBoard( OB_COLD ); /* Initialz
2017-12-14 10:00:05
1916
原创 OSAL osal_msg_send解读
在onboard.c中 首先调用osal_msg_allocate申请一块内存，内存大小为sizeof(osal_msg_hdr_t)+sizeof(keyChange_t),这里注意的是返回地址是 首地址+sizeof(osal_msg_hdr_t)处的地址，这里长度为sizeof(keyChange_t)的内存分配给keyChange_t类型的msgPtr指针。=================
2017-12-13 17:32:43
881
转载 MSP430G2553 SPI UART
void SPI_Init(void){ UCB0CTL0 = UCMSB + UCMST + UCMODE_1 + UCSYNC; // MSB First; Set TBA as master; 4Pin Mode, slave active on UCB1STE=>NCS low; SPI Mode UCB0CTL1 = UCSWRST + UCSSEL_2; // Rese
2017-11-23 13:55:46
491
原创 stm32L011寄存器操作flash
只有写一个地址功能，有其他需求的需要自己完善#ifndef __STM32FLASH_H#define __STM32FLASH_H#include "main.h"#define FLASH_USER_START_ADDR (FLASH_BASE + FLASH_PAGE_SIZE * 96) /* Start @ of user Flash area */#define
2017-11-22 15:07:15
3345
原创 msp430g2553硬件IIC
#include "msp430g2553.h"#include "uart.h"unsigned char RX_Data;void I2C_Init(unsigned char SA);//I2C初始化，SA为从器件地址void I2C_ReadData(unsigned char address);//I2C读出某一地址的数据unsigned char I2C_WriteData(un
2017-10-27 15:06:05
3282
原创 msp430g2553 time1
include “time1.h”include “uart.h”void Time1_Init(void) { TA1CCR0 = 10000; //10MS TA1CCR1 = 20000; TA1CCR2 = 40000; TA1CCTL0 = OUTMOD_4+CCIE; TA1CCTL1 = OUTMOD_4+CCIE; TA1
2017-10-26 16:07:18
502
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