tailieunhanh - Hệ thống nhúng - Chương 7
Tham khảo tài liệu 'hệ thống nhúng - chương 7', công nghệ thông tin, kỹ thuật lập trình phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả | Hệ thống nhúng Thạc sĩ Lê Mạnh Hải Embedded Systems Lesson 8 :THE DARK SCREEN Motivation: Generating the composite video signal Using the Output Compare modules Memory allocation Image serialization Building the video module Testing the video generator Measuring performance The dark screen A Test Pattern Flight plan In this lesson we will consider techniques to interface to a TV screen or, for that matter, to any display that can accept a standard composite video signal. It will be a good excuse to use new features of several peripheral modules of the PIC24 and review new programming techniques. Our first project objective will be to get a nice dark screen (a well-synchronized video frame), but we will soon fill it up with several entertaining graphical applications. Preflight checklist MPLAB® IDE, MPLAB C30 compiler and the MPLAB SIM simulator, Explorer16 demonstration board and the MPLAB ICD2 In Circuit Debugger The flight There are many different formats and . | Hệ thống nhúng Thạc sĩ Lê Mạnh Hải Embedded Systems Lesson 8 :THE DARK SCREEN Motivation: Generating the composite video signal Using the Output Compare modules Memory allocation Image serialization Building the video module Testing the video generator Measuring performance The dark screen A Test Pattern Flight plan In this lesson we will consider techniques to interface to a TV screen or, for that matter, to any display that can accept a standard composite video signal. It will be a good excuse to use new features of several peripheral modules of the PIC24 and review new programming techniques. Our first project objective will be to get a nice dark screen (a well-synchronized video frame), but we will soon fill it up with several entertaining graphical applications. Preflight checklist MPLAB® IDE, MPLAB C30 compiler and the MPLAB SIM simulator, Explorer16 demonstration board and the MPLAB ICD2 In Circuit Debugger The flight There are many different formats and standards today in use in the world of video, but perhaps the oldest and most common one is the so-called “composite” video format. This is what was originally used by the very first TV sets to appear in the consumer market, and today it represents the minimum common denominator of every video display, whether a modern high-definition flat-screen TV of the latest generation, a DVD player, or a VHS tape recorder. Video image All video devices are based on the same basic concept: the image is “painted” one line at a time, starting from the top left corner of the screen and moving horizontally to the right edge, then quickly jumping back to the left edge at a lower position and painting a second line, and so on and on, in a zig-zag motion, until the entire screen has been scanned. Then the process repeats and the entire image is refreshed fast enough for our eyes to be tricked into believing that the entire image is present at the same time, and if there is motion, it is fluid and .
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