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ADNS-6120 Arkusz danych(PDF) 1 Page - AVAGO TECHNOLOGIES LIMITED |
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ADNS-6120 Arkusz danych(HTML) 1 Page - AVAGO TECHNOLOGIES LIMITED |
1 / 16 page 1 ADNK-6003-SP01 Optical Mouse Designer’s Kit Design Guide Introduction The Universal Serial Bus (USB) is an industry standard serial interface between a computer and peripherals such as a mouse, joystick, keyboard, UPS, etc. This design guide describes how a cost-effective USB optical mouse can be built using the Sunplus, SPCP825A USB microcon- troller and the Avago Technologies ADNS-6000 optical sensor. The document starts with the basic operations of a computer mouse peripheral followed by an introduc- tion to the Sunplus SPCP825A USB microcontroller and the Avago Technologies ADNS-6000 Optical Navigation Sensor. A schematic of the Sunplus SPCP825A USB micro- controller to the ADNS-6000 optical sensor and buttons of a standard mouse can be found in Appendix A. The software section of this application note describes the ar- chitecture of the firmware required to implement the USB mouse functions. The Sunplus SPCP825A data sheet is available from the Sunplus web site at www.sunplus.com . The ADNS-6000 data sheet is available from the Avago Technologies web site at www.avagotech.com. USB docu- mentation can be found at the USB Implementers Forum web site at www.usb.org. ADNS-6000 laser mouse set is the world’s first laser-illumi- nated navigation system. With laser navigation technol- ogy, the mouse can operate on many surfaces that prove difficult for traditional LED-based optical navigation. Its high-performance architecture is capable of sensing high-speed mouse motion -- velocities up to 20 inches per second and accelerations up to 8g. The ADNS-6000 sensor along with the ADNS-6120 lens, ADNS-6230-001 clip and ADNV-6340 laser diode form a complete and compact laser mouse tracking system. There are no moving parts, which means high reliabil- ity and less maintenance for the end user. In addition, precision optical alignment is not required, facilitating high volume assembly. Optical Mouse Basics The optical mouse measures changes in position by optically acquiring sequential surface images (frames), and mathematically determining the direction and magnitude of movement. The Z-wheel movement is done in the traditional method by decoding the quadrature signal generated by optical sensors. This design guide shows how to connect to and manage a standard con- figuration of mouse hardware, as well as handle the USB protocols. Each of these protocols provides a standard way of reporting mouse movement and button presses to the PC. Introduction to the Sunplus, SPCP825A The Sunplus, SPCP825A is a general purpose OTP USB mi- crocontroller. It has dual USB speed, namely low and full speed. It can support PS/2 mode. The transceiver is fully controlled by the firmware. Moreover the USB SIE provides good flexibility for firmware to handle USB protocol. The built-in PLL allows CPU to work at 6MHz or 12MHz by using only one 6MHz crystal or resonator. Serial Peripheral Interface (SPI) The Sunplus SPCP825A provides a SPI compatible interface. The SPI circuit supports byte serial transfer in either Master or Slave mode. The integrated SPI circuit allows the Sunplus SPCP825A to communicate with external SPI compatible hardware, in this case the ADNS- 6000. |
Podobny numer części - ADNS-6120 |
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Podobny opis - ADNS-6120 |
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