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Description: CBC下写的串口编程，API函数实例
I wish this site had been around when I was trying to figure out how to make serial communications work in Windows95. I, like many programmers, was hit with the double-whammy of having to learn Windows programming and Win95 serial comm programming at the same time. I found both tasks confusing at best. It was particularly frustrating because I had, over the years, written so much stuff (including lots of serial comm software) for the DOS environment and numerous embedded applications. Interrupt driven serial comm, DMA transfer serial comm, TSR serial comm, C, assembler, various processors... you name it, it had written it. Yet, everything I knew seemed upside-down in the message-driven-callback world of Windows. -CBC was under the serial programming API function examples I wish this site had been around when I was trying to figure out how to make serial communications work in Windows 95. I, like many programmers, was hit with the double-locking of having to learn Windows Win95 programming and serial comm programming at the same time. I found both tasks confusing at best. It was particularly frustrating because I had, over the years, written so much stuff (including lots of serial comm software) for the DOS environment and numerous embedded applications. Interrupt driven serial comm, DMA transfer serial comm, TSR serial comm, C, assembler, various processors ... you name it, it had written it. Yet, I knew everything seemed upside-down in the message-driven-callback world of Windows.
Platform: |
Size: 14412 |
Author: 高荣 |
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Description: 基于DOS的多任务系统的实现
1. 用C语言完成线程的创建和撤消，并按优先权加时间片轮转算法对多个线程进行调度；
2. 改变时间片的大小，观察结果的变化。思考：为什么时间片不能太小或太大；
3. 假设两个线程共用同一软件资源（如某一变量，或某一数据结构），请用记录型信号量来实现对它的互斥访问；
4. 假设有两个线程共享一个可存放5个整数的缓冲，一线程不停的计算1到50的平方，并将结果放入缓冲中，另一个线程不断的从缓冲中取出结果，并将他们打印出来，请用记录型信号量实现这一生产者和消费者的同步问题；
5. 实现消息缓冲通信，并于3，4中的简单通信进行比较；
6. 思考：在线程间进行消息缓冲通信时，若对消息队列的访问没有满足互斥要求，情况会怎么样？-DOS-based multi-tasking system in a. C language to complete the creation and thread lift Priority increase as time slice Web algorithm for multiple-thread scheduling; 2. change the timing of the unit size, The results change. Thoughts : Why not films too little time or too much; 3. Assuming two threads to share the same software resources (such as a variable, or a data structure), with record-volume signal to achieve its exclusive interviews. 4. Suppose two threads share a deposit of five integer buffer keep a thread of 1-50 calculating the square, and the results Add buffer, Another constant thread removed from the buffer, and print them out, Please record-volume signal achieve this producers and consumers synchronization; 5. Implementation news buffer communications, and 3, 4 simple comm
Platform: |
Size: 4139 |
Author: Li |
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Description: DOS下使用中断方式接收发送完整数据源码
Platform: |
Size: 3346 |
Author: dmj |
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Description: 在DOS环境下，UART利用中断方式接收串口数据，并将接收到的数据从串口发送出去。串口地址为0xff80,波特率115200.
Platform: |
Size: 6982 |
Author: chen |
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Description: turboc环境下的串口编程源代码，可以参考进行dos下底层开发。-The source code about serial in turboc, which is helpful to kernel developing under dos mode.
Platform: |
Size: 13338 |
Author: 成功 |
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Description: CBC下写的串口编程，API函数实例
I wish this site had been around when I was trying to figure out how to make serial communications work in Windows95. I, like many programmers, was hit with the double-whammy of having to learn Windows programming and Win95 serial comm programming at the same time. I found both tasks confusing at best. It was particularly frustrating because I had, over the years, written so much stuff (including lots of serial comm software) for the DOS environment and numerous embedded applications. Interrupt driven serial comm, DMA transfer serial comm, TSR serial comm, C, assembler, various processors... you name it, it had written it. Yet, everything I knew seemed upside-down in the message-driven-callback world of Windows. -CBC was under the serial programming API function examples I wish this site had been around when I was trying to figure out how to make serial communications work in Windows 95. I, like many programmers, was hit with the double-locking of having to learn Windows Win95 programming and serial comm programming at the same time. I found both tasks confusing at best. It was particularly frustrating because I had, over the years, written so much stuff (including lots of serial comm software) for the DOS environment and numerous embedded applications. Interrupt driven serial comm, DMA transfer serial comm, TSR serial comm, C, assembler, various processors ... you name it, it had written it. Yet, I knew everything seemed upside-down in the message-driven-callback world of Windows.
Platform: |
Size: 14336 |
Author: 高荣 |
Hits:
Description: 基于DOS的多任务系统的实现
1. 用C语言完成线程的创建和撤消，并按优先权加时间片轮转算法对多个线程进行调度；
2. 改变时间片的大小，观察结果的变化。思考：为什么时间片不能太小或太大；
3. 假设两个线程共用同一软件资源（如某一变量，或某一数据结构），请用记录型信号量来实现对它的互斥访问；
4. 假设有两个线程共享一个可存放5个整数的缓冲，一线程不停的计算1到50的平方，并将结果放入缓冲中，另一个线程不断的从缓冲中取出结果，并将他们打印出来，请用记录型信号量实现这一生产者和消费者的同步问题；
5. 实现消息缓冲通信，并于3，4中的简单通信进行比较；
6. 思考：在线程间进行消息缓冲通信时，若对消息队列的访问没有满足互斥要求，情况会怎么样？-DOS-based multi-tasking system in a. C language to complete the creation and thread lift Priority increase as time slice Web algorithm for multiple-thread scheduling; 2. change the timing of the unit size, The results change. Thoughts : Why not films too little time or too much; 3. Assuming two threads to share the same software resources (such as a variable, or a data structure), with record-volume signal to achieve its exclusive interviews. 4. Suppose two threads share a deposit of five integer buffer keep a thread of 1-50 calculating the square, and the results Add buffer, Another constant thread removed from the buffer, and print them out, Please record-volume signal achieve this producers and consumers synchronization; 5. Implementation news buffer communications, and 3, 4 simple comm
Platform: |
Size: 4096 |
Author: Li |
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Description: DOS下使用中断方式接收发送完整数据源码-DOS interrupt used to send receive complete data source
Platform: |
Size: 3072 |
Author: dmj |
Hits:
Description: 在DOS环境下，UART利用中断方式接收串口数据，并将接收到的数据从串口发送出去。串口地址为0xff80,波特率115200.-In the DOS environment, UART serial port to use interrupt receive data and receive data sent from serial port. Serial address 0xff80, baud rate 115200.
Platform: |
Size: 7168 |
Author: chen |
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Description: 一个完整的串行通讯源代码，C语言，同时支持两个串行端口，中断方式，自定义数据校验协议，对开发DOS下的通讯程序非常实用-A complete source code for serial communication, C language, while supporting two serial ports, interrupt, custom data validation agreement, under DOS on the development of the communication process is very useful
Platform: |
Size: 10240 |
Author: OURS |
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Description: dos下的串口相关编程，主要是对程序交换机的串口接收和发送的汇编源码-dos serial port under the relevant programming, the program switches mainly receive and transmit serial compilation of source
Platform: |
Size: 3072 |
Author: huangshuxiang |
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