AT91SAM7X256 - PIO YoonMo Yeon 2007. 2. 8..

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Presentation transcript:

AT91SAM7X256 - PIO YoonMo Yeon 2007. 2. 8.

Contents Atmel AT91SAM7X256 microcontroller PIO LED control example Joystic control example 2007-02-08 AT91SAM7X256 - PIO

AT91SAM7X256 ARM7TDMI ARM Thumb Processor 32-bit RISC Architecture 16-bit Instruction Set 256Kbytes Flash, 64Kbytes SRAM 2007-02-08 AT91SAM7X256 - PIO

AT91SAM7X256 2007-02-08 AT91SAM7X256 - PIO

AT91SAM7X256 2007-02-08 AT91SAM7X256 - PIO

PIO Parallel Input/Output controller AT91SAM7X256 32 fully programmable input/output lines General-Purpose I/O or embedded peripheral Each I/O line is associated with a bit number in 32-bit registers AT91SAM7X256 31 x 2 programmable I/O lines (PIOA, PIOB) 2007-02-08 AT91SAM7X256 - PIO

2007-02-08 AT91SAM7X256 - PIO

PIO user interface registers Enable/Disable and get current status PIO Output Glitch Input Filter Interrupt Multi-driver Pull-up Output Write 2007-02-08 AT91SAM7X256 - PIO

PIO user interface registers Etc. Set/Clear output Get pin data status Select Peripheral A or B 2007-02-08 AT91SAM7X256 - PIO

LED control Schematic 2007-02-08 AT91SAM7X256 - PIO

LED control AT91SAM7X256.h board.h 2007-02-08 AT91SAM7X256 - PIO

LED control 2007-02-08 AT91SAM7X256 - PIO

Joystick control Schematic 2007-02-08 AT91SAM7X256 - PIO

Joystick control AT91SAM7X256.h board.h 2007-02-08 AT91SAM7X256 - PIO

2007-02-08 AT91SAM7X256 - PIO

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