tailieunhanh - Robot Builders Source Book - Gordon McComb Episode 1 Part 10

Tham khảo tài liệu 'robot builders source book - gordon mccomb episode 1 part 10', kỹ thuật - công nghệ, cơ khí - chế tạo máy phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả | 342 MICROCONTROLLERS-HARDWARE The Basic Stamp Microcontroller Since its inception the Basic Stamp has provided the onboard brains for countless robotics projects. This thumbprint-sized microcontroller uses Basic language commands for instructions and is popular among robot enthusiasts electronics and computer science instructors and even design engineers looking for an inexpensive alternative to microprocessor-based systems. The Basic Stamp which is manufactured by Parallax is really an off-the-shelf Microchip PICmicro microcontroller. Embedded in this PIC is a proprietary Basic-like language interpreter called PBasic. The chip stores commands downloaded from a PC or other development environment. When the program is run the language interpreter built inside the Stamp converts the instructions into code the chip can use. As a result the Basic Stamp acts like a programmable electronic circuit with the added benefit of intelligent control but without the complexity and circuitry overhead of a dedicated microprocessor. Instead of building a logic circuit out of numerous inverters AND gates flip-flops and other hardware you can use just the Basic Stamp module to provide the same functionality doing everything in software. The Basic Stamp uses two kinds of memory PROM programmable read-only memory and RAM. The PROM memory is used to store the PBASIC interpreter the RAM is used to store data while a PBASIC program is running. Housed in a separate chip but still part of the Basic Stamp itself see the description of the BSII module later is EEPROM memory for the programs you download from your computer. In operation your PBASIC program is written on a PC then downloaded via a serial connection to the Basic Stamp. The program is stored in EEPROM. The Basic Stamp is available directly from its manufacturer or from a variety of dealers world over. Prices from most sources are about the same. The Basic Stamp is available in several versions including the older BSI the .