Software design includes the following : firstly stb part - bottom drive : including front - end drive , flash drive , the receiving software of the front board key - press and remote control signal 机顶盒部分底层驱动程序,包括:前端驱动、 flash驱动、前面板按键接收软件和遥控信号接收软件等。
The focus is about the char device driver design used in the dvb receiving card and the drive development process in user space ; analyzing the dvb receiving system working principle and process under linux and providing a method to load the linux dvb receive card device drive into the linux kernel ; analyzing and implementing the firmware design of saa7146 chipset working with linux kernel and working characteristic in vrious working mode ; analyzing and implementing the frontend drive programing of the digital tv receive system ; realized the qam demodulation and the mpeg stream filter , so that the output stream can be used to playing on pc better . and this article designs an event management mechanism based on the mhp , which improve the linux dvb software system 重点研究了数字电视接收卡的字符设备驱动问题,阐述了用户空间开发驱动程序的过程;分析了linux下数字电视接收系统的工作原理和驱动程序开发过程,给出了linuxdvbapi接收卡设备驱动程序加载到linux内核中的方法;研究实现了saa7146芯片配合linux内核共同工作的固件设计和不同工作模式下的工作特性;研究实现了dvb接收系统中前端驱动程序的编写;设计实现了qam解调和mpeg流解复用,使输出传输流较好地用于pc播放;同时,本文所设计的一种符合mhp规范的中间件事件管理机制,优化了linuxdvb软件系统。
前端: fore-end; nose; front end; l ...驱动: drive; prime mover前端驱动挤出机: front-end drive extruder前端: fore-end; nose; front end; leading end前端的, 前端处理机, 前端: front-end驱动: [机械工程] drive; prime mover 前轮驱动 front-wheel drive; 四轮驱动 four-wheel drive; 气顶驱动 [油] gas-cap drive; 溶解气驱动 [油] dissolved-gas drive; 驱动齿轮 driving gear; 驱动电动机 drive motor; actuating motor; 驱动杆 drive rod; [工业] drive spindle; actuating arm; 驱动功率 driving power; 驱动力 thrust; driving power; driving force; 驱动轴 line axle; drive shaft; driving axle; driving shaft; 驱动装置 transmission; driving gear; driving device板前端: front edge of board; front end of board棒前端: nose顶前端: nose of groyne脾前端: anterior extremity of spleen; extremitas anterior splenis前端板: fore stand plate; front head前端壁: front bulkhead前端点: forward terminal前端盖: dirve end baring bracket; front end housing; front housing前端面: front face前端墙: front end wall前端罩: front head舌前端: blade棒头前端: nose本地前端: lacal head end鼻管前端: snout冰镐前端: spitze驳船队前端: head-of-fleet处理机前端: processor front-end; processor input-outputchannel船的最前端: eyes of her