August 2010 Blog Posts (5)

Introduction to USB Communication

Transactions: A USB transaction has three parts: the token packet, the optional data packet, and the status packet, which represent the header, payload, and data

acknowledge, respectively. Since USB is host-driven, the host initiates

transactions by sending the token packet. It also sends packets to indicate the

start of each frame, every millisecond. Packets on this layer are taken care

of, so the…

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Added by Thineshan Kathirchelvan (TA) on August 17, 2010 at 10:41pm — No Comments

PIC delay code generator

Often times in project coding development, the programmer need to generate some sort of delay. It is hard and tedious to calculate by hand, an alternative way is to use the Pic Delay Code Generator for ASM Programmers made by N Golovchenko.…

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Added by Yifan Wang on August 17, 2010 at 5:30pm — No Comments

Introduction to Inter-Integrated Circuit (I2C)

It is quite clear that the I2C bus can be very confusing for the newcomer. This short article therefore tries to de-mystify the I2C bus, I hope it doesn't have the opposite effect!…

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Added by Shayegan (TA) on August 17, 2010 at 5:00pm — No Comments

Introduction to FPGAs

Modern technology allows the construction of chips that contain configurable circuitry which can be changed in order to implement a wide range of different logic circuits. Two different types of chips fall under this approach – PLDs and ASICs.

The Application-Specific Integrated Circuit (ASIC) is a chip intended for very specific uses within a design. These chips lack the dynamic nature of PLDs and are usually custom-ordered from the vendor. On the other hand,…

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Added by Valentin on August 17, 2010 at 5:00pm — No Comments

Introduction to Serial Communications (RS232)

All IBM PC and compatible computers are typically equipped with two serial ports and one parallel port. Although these two types of ports are used for…

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Added by PML on August 14, 2010 at 2:00pm — No Comments

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