(1) 用单脉冲发生器的输出作为中断请求信号使8259A产生中断,进入中断后显示一个字符串。(2) 中断请求通过8259的IRQ2端输入,中断源可以是片外8253定时器输出的脉冲,并把8253的OUTO和总线槽IR02连接好。 (3) 编写程序,要求每次主机响应外部中断IRQ2时,显示字符串“THIS IS A 8259A INTERRUPT!”(或其它串),中断十次后,程序退出。
上传时间: 2014-08-04
上传用户:xcy122677
The IA-32 Software Developer’s Manual, Volume 3: System Programming Guide (Order Number 245472), is part of a three-volume set that describes the architecture and programming environment of all IA-32 Intel® Architecture processors. The IA-32 Software Developer’s Manual, Volume 3, describes the operating-system support environment of an IA-32 processor, including memory management, protection, task management, interrupt and exception handling, and system management mode. It also provides IA-32 processor compatibility information. This volume is aimed at operating- system and BIOS designers and programmers.
标签: Programming Developer Software 245472
上传时间: 2013-12-23
上传用户:小码农lz
该模块基于USB FX2开发板,实现了GPIO(general-purpose IO)控制功能,目前可提供15口输出控制在0V/3.3V之间切换,和9口输入在Enable/Disable之间切换。
上传时间: 2014-12-06
上传用户:myworkpost
This example demonstrates how the C8051F06x SMBus interface can communicate // with a 256 byte I2C Serial EEPROM (Microchip 24LC02B). // - Interrupt-driven SMBus implementation // - Only master states defined (no slave or arbitration) // - Timer4 used by SMBus for SCL low timeout detection // - SCL frequency defined by <SMB_FREQUENCY> constant
标签: demonstrates communicate C8051F06x interface
上传时间: 2016-04-12
上传用户:hanli8870
tmsf2812提供的一些例程,包括sci,gpio,spi,ad/da
上传时间: 2016-04-13
上传用户:米卡
This will sample all 8 A/D-channels by the continous mode. Each end of conversion will call an interrupt routine, where the AD-channel is put to Port4[2..0] and the upper nibble of the result is put to Port4[7..4]. Port 4 is connected to the user LEDs of the FlashCan100P Evaluation-Board
标签: will D-channels conversion continous
上传时间: 2013-12-09
上传用户:zm7516678
This example provides a description of how to set a communication with the bxCAN in loopback mode: - transmit and receive a standard data frame by polling at 100Kbit/S - transmit and receive an extended data frame with interrupt at 500Kbit/S - lit some LEDs depending of the program succeed or not
标签: communication description provides loopback
上传时间: 2016-04-24
上传用户:frank1234
This example provides a description of how to use a DMA channel to transfer a word data buffer from memory (Flash) to memory (RAM). The dedicated DMA channel is configured to transfer once a time a 32 word data buffer stored as constant in the Flash memory to another buffer in the RAM memory. The received data are stored in the DST_Buffer. The DMA channel transfer complete interrupt is enabled to generate an interrupt at the end of the buffer transfer. As soon as the transfer is completed an interrupt is generated and in the DMA channel interrupt routine the transfer complete interrupt pending bit is cleared. The data counter is stored before and after the transfer to show that all data has been transfered. TransferStatus gives the data transfer status where it is PASSED if transmitted and received data are the same otherwise it is FAILED
标签: description provides transfer example
上传时间: 2016-04-24
上传用户:ecooo
iceteck公司提供的F2806的开发板的实例程序,F2806B的程序,包括定时器,中断,GPIO等应用
上传时间: 2016-05-09
上传用户:源弋弋
基于LPC2210 的ZLG/CF 驱动使用. CF 卡有PC 卡I/O、MEMORY 及True IDE 等3 种模式,而True IDE 模式兼容IDE 硬 盘,该模式比其它的两种模式更实用,是3 种模式中使用较多的一种。本节中描述CF 卡在 True IDE 模式下的应用。 使用LPC2210 的通用可编程I/O 口,模拟产生ATA 设备的读写时序,实现对CF 卡及 IDE 硬盘等ATA 设备读写操作。使用LPC2210 的GPIO 功能,可以非常灵活而简单地实现 ATA 读写时序。
上传时间: 2016-05-18
上传用户:海陆空653