Wooi Ming Tan's Developing Usb PC Peripherals PDF

By Wooi Ming Tan

ISBN-10: 0929392388

ISBN-13: 9780929392387

This brand-new ebook is a step by step advisor to constructing common Serial Bus (USB) units. Wooi Ming Tan, a key participant within the improvement of USB, presents easy-to-understand directions for making a USB gadget utilizing the Intel 8x930AX USB Microcontroller evaluate package. you will get entire USB procedure part descriptions with synopses of the USB Specification rev. 1.0, improvement instruments and surroundings, USB microcontroller structure and its firmware working version, WDM and USB machine motive force versions, and USB host program software program. to hurry your layout and improvement method, we've got incorporated pattern code for a WDM motive force, the USB microcontroller firmware, and the host program software program at the enclosed disk. no matter if you are new to USB or already within the layout method, constructing USB notebook Peripherals will give you the details you want to effectively movement ahead along with your new USB peripheral.

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For example, you can try out the operation of the firmware for the device without USB functionality first. In the other firmware module, we can test the USB functions independently. When both firmware modules work well separately, they can be merged together and the testing can continue. ASM, is on the enclosed diskette and listed in Appendix A. This code is meant as a design example and it must be modified to suit the operation of the test device. As shown in Figure 3-2, we use a separate USB host PC to send out USB packets to test and debug our firmware on the USB device.

To enable or disable the receive and transmit done for the 4 endpoint pairs. F1E1 USB Function Interrupt Enable 1 . To enable or disable the receive and transmit done (for endpoint pairs four and five if selected, see EPCONFIG). FIFLG USB Function Interrupt Flag Register. To store the transmit and receive done interrupt flags when the endpoints are configured as non-isochronous endpoints (for the four endpoint pairs). FIFLG1 USB Function Interrupt Flag 1 . To store the transmit and receive done interrupt flags when the endpoints are configured as non-isocronous endpoints (for endpoint pairs five and six if selected, see EPCONFIG).

The MCS 37 Overview of the 8x930Ax USB Microcontroller 251 has a 3-stage pipeline CPU core which offers higher performance as compared to the MCS 51. When the pipeline is full and code is executed from internal memory, some instructions can be completed in one state time; one state time is equivalent to one oscillator clock for the case of the 8x930Ax when its internal Phase Lock Loop (PLL) is enabled. To enable the PLL, pins PLLSEL2, PLLSEL1 and PLLSEL0 need to be pulled high, high, and low respectively.

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Developing Usb PC Peripherals by Wooi Ming Tan


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