资讯
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Linux 3.3.0移植到S3C6410开发板上之一(2024-09-19)
@f6010000: id 0x00041192, vendor 0x41
Console: colour dummy device 80x30
Calibrating delay loop... 528.79......
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u-boot-2009.08在mini2440上的移植 增加I2C EEPROM功能(2024-07-01)
Controlleri2c loop chip address[.0, .1, .2] [# of objects] - looping read of device[u-boot@MINI2440]# i2c......
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在LPC3250上使用UBIFS文件系统(2024-05-06)
(aligned 512)
UBI: data offset: 2048
UBI: empty MTD device detected
UBI: create volume......
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内核移植(3)修改MTD分区(2023-08-28)
界面,看到内核的启动信息如下:
loop: module loaded
dm9000 Ethernet Driver
Uniform Multi-Platform E-IDE driver......
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Allegro MicroSystems推出恒定电流3安培降压稳压器LED驱动器(2013-06-26)
modulation (PWM) signal at the enable pin.
The device is provided in a compact 8-pin narrow SOIC......
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mini2440通过NFS启动的U-Boot参数设置(2024-06-27)
dummy device 80x30console [ttySAC0] enabledCalibrating delay loop... 201.93 BogoMIPS (lpj=504832......
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micro2440第一个裸板程序LED(2024-07-02)
] bl delay b loop
delay: mov r4,#100del1: mov r5,#1000del2: sub r5,r5,#1 nop cmp r5,#1 bne del2 sub r4......
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s3c2416裸跑环境配置(2023-05-19)
版本的Keil支持s3c2416 Device,但是不能通过编译,例如Keil uVision 4.1,会提示不支持ARM926EJ-S
调试工具:J-link V8
目标板:tq2416,当然......
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关于s3c6410的SD卡启动(2024-09-13)
ldr r2,=0xff0f
10 str r2,[r0]
11 loop:
12 b loop
13
makefile......
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S3C2440使用RAM来挂载jffs2文件系统(2024-06-07)
. 引言 在yaffs2,jffs2和cramfs这3个文件系统中,只有cramfs可以作为loop device使用mount命令来挂载,而其他两个则不行。 不过内核可以使用RAM来模......
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STM32单片机内存管理器实用代码解析与工程应用指南(2024-09-27)
};
DMEM *DynMemGet(uint32_t size)
{
uint16_t loop = 0;
uint16_t find = 0;
uint16_t......
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STM32单片机内存管理器代码,可直接用于工程(2024-10-16 16:16:17)
loop......
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汇编写51单片机之按键检测(2023-01-11)
汇编写51单片机之按键检测;二话不说,先上代码:
ORG 00H
LOOP: JB P3.4,LOOP
LCALL DELAY
JB P3.4,LOOP
LOOP1:JB P3.4,LOOP
JB......
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Loop Industries 宣布与 On AG 签署意向书,以确保计划中位于韩国蔚山的 Infinite Loop(TM) 制造工厂的产量;加拿大蒙特利尔, 2023年5月15日 - Loop......
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Loop Industries宣布完成先前公布的Reed Management融资方案和合作伙伴关系的重要里程碑(2024-08-01 09:10)
Loop Industries宣布完成先前公布的Reed Management融资方案和合作伙伴关系的重要里程碑;- 法国兴业银行将收购Reed Management SAS ("Reed") 75......
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基于无操作系统的STM32单片机开发(2024-03-26)
申请表
for(loop=0;loop< DMEM_BLOCK_NUM; loop++)
{
if(DMEMS.tb_apply[loop].used==DMEM_FREE......
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Loop Industries宣布与On AG签署意向书,以确保计划中位于韩国蔚山的 Infinite Loop(TM) 制造工厂的产量(2023-05-16 09:19)
Loop Industries宣布与On AG签署意向书,以确保计划中位于韩国蔚山的 Infinite Loop(TM) 制造工厂的产量;Loop Industries, Inc. (纳斯......
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Loop Industries 宣布与 On AG 签署意向书,以确保计划中位于韩国蔚山的 Infinite Loop(TM) 制造工厂的产量(2023-05-17 09:10)
Loop Industries 宣布与 On AG 签署意向书,以确保计划中位于韩国蔚山的 Infinite Loop(TM) 制造工厂的产量;Loop Industries, Inc.(“Loop......
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法兰克·勒罗瓦(Franck Leroy),大东部地区主席,访问Loop Industries位于加拿大魁北克省特尔伯恩设施(2023-05-31 09:18)
法兰克·勒罗瓦(Franck Leroy),大东部地区主席,访问Loop Industries位于加拿大魁北克省特尔伯恩设施;Loop Industries, Inc.(纳斯达克股票代码:LOOP......
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基于STM32F103C8T6 MCU的STM32 Blue Pill Board接口(2023-10-19)
(){Wire.begin();
Serial.begin(9600);while (!Serial);}
void loop(){byte error, address;int I2CDevices......
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uboot环境变量与内核MTD分区关系(2024-08-30)
Printer support is enabled.
LOOP Loopback device support is enabled.
M68k......
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S3C6410之uboot回炉再造(7)C环境的入口(2024-09-02)
init console as a device */
12、可配置项
106 #if defined(CONFIG_ARCH_MISC_INIT)
110 #if defined......
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u-boot-2015.01在tq2440上的初步移植(2023-06-26)
DM9000: running in 16 bit mode
MAC: 00:11:22:33:44:55
could not establish link
Using dm9000 device......
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ARM-Linux移植之(四)——根文件系统构建(2024-07-15)
–a命令,于是该命令就会根据etc下fstab文件来挂载相应的目录。
4)配置fstab文件
在etc目录下新建fstab文件,然后在该文件内写入
# device mount-point......
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51单片机串口应用实例(汇编)(2024-08-22)
中断
SETB ES
SETB EA
SETB RI
SETB EX0 ;打开外部中断0
SETB IT0 ;跳变沿触发方式
LOOP......
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零基础:学51单片机定时器(2023-08-28)
/计数器 0 开始运行
LOOP:JBC TF0,NEXT ;如果 TF0 等于 1,则清 TF0 并转 NEXT 处
AJMP LOOP ;不然跳转到 LOOP 处运行
NEXT:CPL......
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使用超高速闪存微控制器实现快速内存传输(2023-07-21)
loop: ; Cycle Count @ 12clks/cycle
movx a,@dptr ; 2
inc dptr ; 2
xch a,r0 ; 1
xch a,dpl ; 1
xch......
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PWM控制LED灯渐亮渐灭汇编程序(2022-12-26)
,#066H ;频率调节
SETB EA
SETB ET0
SETB ET1
SETB TR0
LOOP: MOV A,PWM ;
JB INCKEY,LOOP1 ;增加键是否按下?
CALL......
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AT89C2051内部比较器应用例子(2023-04-03)
mov a, #TDISCHARGE ; wait call delay_ms ; loop: call adc ; convert call vshow......
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SDCC-Linux下的51 MCU编译器(2024-02-28)
)
flag = 0;
else
flag = 1;
while(1); // program loop
}
以普通ASCII格式(如使......
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常用 U-boot命令详解(2024-08-30)
(xmodem mode)loady - load binary file over serial line (ymodem mode)loop - infinite loop on address......
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YTM32的DMA控制器要点简析(2024-03-20)
件触发是通过软件写各通道的寄存器位DMA_CTSn_CSR[START],或者寄存器DMA_START中对应通道的控制位实现的,每写1次就发出一个触发信号。每次触发,执行一次小循环(one trigger loop)的搬......
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as8051入门(2024-07-29)
as8051入门;汇编例子
MAIN:
MOV R0, #16
MOV R1, #16
LOOP:
MOV A, R1
MOV @R0......
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ARM C编程(2024-07-23)
int loop = 0;.......loop++;....... } loop变量的值会跟随着函数的调用次数而递增,函数退出后,loop的值还存在,只是loop只能......
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如何使用KD2204M/SMB2204M驱动器驱动步进电机?(2024-04-10)
low
}
void loop()
{
digitalWrite(dir_pin,HIGH); // Set Dir high
for(x = 0; x < 200; x......
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STM32 IIC读写AT24C02(二)(2024-03-29)
) //不应答
{
IIC_Stop();
*err = -4;
goto loop;
}
IIC_SendByte(wordAdd); //发字......
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AT89S51单片机驱动扬声器实现报警器功能的设计(2023-09-01)
SJMP START
DELY500: MOV R7,#250
LOOP: NOP
DJNZ R7,LOOP
RET
END
......
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linux驱动程序之电源管理之Run-time PM 详解(4)(2023-06-19)
linux驱动程序之电源管理之Run-time PM 详解(4);Run-time PM.
每个device或者bus都会向run-time PM core注册3个callback......
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linux驱动程序之电源管理之新版linux系统设备架构中关于电源管理方式的变更(2023-06-19)
模型各数据结构中电源管理的部分
linux的设备模型通过诸多结构体来联合描述,如struct device,struct device_type,struct class, struct......
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基于tiny4412的Linux内核移植 -- 设备树的展开(2023-06-21)
device tree)
u-boot版本:友善之臂自带的 U-Boot 2010.12 (为支持uImage启动,做了少许改动)
busybox版本:busybox 1.25
交叉编译工具链: arm......
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第5章 定时器/计数器(2024-08-09)
位来启动(=1)或停止(=0)定时器。
查询方式程序:
MOV TMOD,#00H ;T1工作在方式0
SETB TR1 ;启动T1工作
LOOP: MOV TL1,#03H......
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单片机Fault遇到故障了应该怎么办(2024-06-28)
HardFault_Handler(void){ /* Go to infinite loop when Hard Fault exception occurs */ while (1) { }} void......
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基于onsemi LV8907UWR2G的100W汽车电子水泵解决方案(2023-02-23)
−loop as well as Closed−loop Speed Control
►方案规格
(1)输入电压:5.5V - 20V
(2)支持Lin Bus
(3)驱动方式:梯形波控制
(4......
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CORE8051-APB总线(2024-07-29)
XWB2, #10H
MOV XWB1, #10H
MOV ACC, #10H
LOOP:
MOVX @DPTR, A ;apb write......
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Device Tree(二):基本概念(2023-05-23)
Device Tree(二):基本概念;一、前言
一些背景知识(例如:为何要引入Device Tree,这个机制是用来解决什么问题的)请参考引入Device Tree的原因,本文......
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CPU的分支预测对你的代码有什么影响(2023-02-02)
; arraySize; ++c)
data[c] = std::rand() % 256;
// !!! With this, the next loop runs faster......
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AT89S51单片机报警器的设计(2023-07-21)
CPL FLAG
SJMP START
DELY500: MOV R7,#250
LOOP: NOP
DJNZ R7,LOOP
RET
END
7.C语言源程序
#include
#include......
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arm汇编进入C函数分析,C函数压栈,出栈,传参,返回值(2024-08-01)
,=4096 @设置堆栈指针以便调用C函数
5 bl main
6 loop:
7 b loop
main.c:
1 void main(void)
2 {
3......
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Linux设备树学习(三)uboot和Linux中的设备树移植(2023-05-23)
Linux设备树学习(三)uboot和Linux中的设备树移植;一、uboot对fdt(flattened device tree)的支持
在xxx_defconfig中加入
#define......
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mini6410 2.6.38移植 USB(2024-08-12)
)+#ifdef CONFIG_MACH_MINI6410+extern void s3c_otg_phy_config(int enable);+#endif+/* clock device......
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