MCU为LPC2220,FLASH为39FV1601(地址0x80000000),外部一个SRAM(地址0x81000000),程序用ADS编译, 用分散加载,程序0x80000000开始引导,FLASH操作在LPC2220内部RAM运行。 实现的作用为开机等待2秒左右若PC发来连接指令将进入BOOT部分,若超时则COPY应用程序到外部RAM开始运行。 抛砖引玉,可以认识到分散加载,BOOT的基本原理及方法,该程序已可完成所有功能,但可能仍然需要补足一些 如FLASH坏区检查等,不足之处,敬请自己修改过来拉。 用于串口方式下载,波特率38400。
标签: 0x80000000 0x81000000 FLASH 2220
上传时间: 2014-01-26
上传用户:zhuyibin
ATMEL ARM7 SAM64 Porting ucos / Keil ARM VER3.04。不同于其它,本代码使用了独立的中断栈,能显著降低RAM的需求,尤其适合小RAM的CPU使用。工程中已经建立了ULINK、以及H-JTAG调试的FALSH&RAM版本,因为涉及版权,不包含ucos source。
上传时间: 2014-09-11
上传用户:zhaoq123
辅助说明: 代码交流 QQ59771230 email:choudaxian@163.com 注意事项: 1) LCD 指令中的TEXT GRAPHIC AREA SET效果是什么样的 2) LCD 指令中的MODE SET中的OR AND XOR 有图层的味道 3) DJNZ+指令C0H(DATA AND WRITE)与相同的数据时就会出错 4) CHAR ADN PIC分别清除 5) 几何图形绘制与实现图形 6) 菜单优化设计,结构体:上,下,上一组,下一组,指向函数的指针 显示的内容: 16*16汉字:欢迎使用福莱特电气有限公司产品 12*12汉字:进入主界面并且可以反显 8*8字符:FULL-RIGHT 并对所显示的汉字进行卷屏显示 关键是如何方便在屏上确定的位置上显示确定的汉字 要使占用ROM,RAM小的前提下
标签: choudaxian 59771230 GRAPHIC email
上传时间: 2016-12-28
上传用户:xauthu
三星44b0的pcb图,cpu、ram以及flash合理分布,电磁抗干扰性能较好。
上传时间: 2017-01-01
上传用户:lwwhust
I want to provide an example file system driver for Windows NT/2000/XP. For some time I have worked on an implementation of RomFs. RomFs is a small filesystem originally implemented in Linux, because of its simple disk layout its a good choice for an example driver. The current status is a working read-only driver that supports caching of file data, the create functionallity still needs some work but I m releasing it due to the high public demand.
标签: provide Windows example driver
上传时间: 2013-12-19
上传用户:zsjzc
ucos2 is a file system for embedded applications which can be used on any media, for which you can provide basic hardware access functions. µ C/FS is a high performance library that has been optimized for minimum memory consumption in RAM and ROM, high speed and versatility. It is written in ANSI C and can be used on any CPU.
标签: which applications can for
上传时间: 2017-01-04
上传用户:偷心的海盗
ucos2 is a file system for embedded applications which can be used on any media, for which you can provide basic hardware access functions. µ C/FS is a high performance library that has been optimized for minimum memory consumption in RAM and ROM, high speed and versatility. It is written in ANSI C and can be used on any CPU.
标签: which applications can for
上传时间: 2017-01-04
上传用户:13517191407
minicore为一个加法器的最小结构,含有移位RAM 和调试的TB 程序等。
上传时间: 2017-01-04
上传用户:Pzj
实验四 子程序设计实验 实验目的:通过调试数据块传送程序,加深对循环程序的理解,掌握子程序的设计与MedWin环境下子程序的调试。进一步加深对并行I/O口的理解。 实验内容: 1. 调试程序dmove.asm,观察片外数据区7000H、A000H开始的单元内容变化规律。 修改程序将7010H-7073H单元内容传送至B000H开始的存储区中。 2. 设计一个子程序,统计片外数据区从2000H开始的256个符号数中偶数的个数,低位存入R3,高位存入R2。 3.(选作题)设计子程序,实现对片外数据存储器的测试。具体要求如下: 1)测试方法自选 2)数据存储区首地址、长度可变。 3)可统计坏单元数目,并记录坏单元地址。 4)利用LED指示灯,提示测试过程和结果状态。 思考题: 1.从2000H单元开始的外部RAM中存有100个数,要求把它传送到自2500H单元开始的存贮区中去,但在传递过程中要检查数的值,遇到第一个零就停止传送。应如何编写程序? 2.若要将偶数从小到大排序并置于从2000H开始的前端,其余符号数按原来顺序置于偶数后面。应如何编写程序? 3.若要求偶数的算术平均值,应如何编写程序?
上传时间: 2014-11-26
上传用户:wangzhen1990
CAN1.c and CAN2.c are a simple example of configuring a CAN network to transmit and receive data on a CAN network, and how to move information to and from CAN RAM message objects. Each C8051F040-TB CAN node is configured to send a message when it s P3.7 button is depressed/released, with a 0x11 to indicate the button is pushed, and 0x00 when released. Each node also has a message object configured to receive messages. The C8051 tests the received data and will turn on/off the target board s LED. When one target is loaded with CAN2.c and the other is loaded with CAN1.c, one target board s push-button will control the other target board s LED, establishing a simple control link via the CAN bus and can be observed directly on the target boards.
标签: CAN configuring and transmit
上传时间: 2013-12-11
上传用户:weiwolkt