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Lab2 LED_LabExampleDetails-save - Microcomputer Systems 1...

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Unformatted text preview: Microcomputer Systems 1 Interaction of ADSP-BF533 Ez-Kit Lite with the outside world LAB1 Example February 11, 2012 Veton Kpuska 2 BF533 EZ-Kit Lite The EZ-KIT Lite provides four (4) push buttons and six (6) LEDs for general-purpose IO. 6 LEDs The six LEDs, labeled LED4 through LED9, are accessed via some of the general-purpose IO pins of the flash memory interface. 4 SW push-button switches The four general-purpose push button switches are labeled SW4 through SW7. A status of each individual button can be read through programmable flag (PF) inputs: PF8 through PF11. A PF reads 1 when a corresponding switch is being pressed-on. When the switch is released, the PF reads 0. A connection between the push button and PF input is established through the SW9 DIP switch. February 11, 2012 Veton Kpuska 3 BF533 EZ-Kit Lite February 11, 2012 Veton Kpuska 4 SW9 Switch For more information see ADSP-BF533 EZ-KIT Lite Evaluation System Manual: ADSP_BF533_EZ_KIT_Lite_Manual_Rev_3.0.pdf February 11, 2012 Veton Kpuska 5 Push Button Enable Switch (SW9) Positions: 1 through 4 : disconnect the drivers associated with the push buttons from the PF pins of the processor. 5 and 6 : are used to connect the transmit and receive frame syncs and clocks of SPORT0. This is important when the AD1836 video decoder and the processor are communicating in I2S mode. Table 2-6 shows which PF is driven when the switch is in the default (ON) position. February 11, 2012 Veton Kpuska 6 BF533 EZ-Kit Lite Circuit Schematics February 11, 2012 Veton Kpuska 7 Lab 1 Details Source code directory contains an example ADSP-BF533 project that shows how Programmable Flag pins (FIO), Interrupts, and Timer can be configured in C. It also demonstrates the access to the LEDs on the EZ-KIT Lite, which are connected to the on-board Flash. Files contained in this directory: BF533 Flags C.dpj VisualDSP++ project file main.c C file containing the main program and variable declaration Initialisation.c C file containing all initialization routines ISRs.c C file containing the interrupt service routines for Timer and FIO BF533 Flags.h C header file containing prototypes and macros readme.txtthis project description file February 11, 2012 Veton Kpuska 8 Lab 1: Functional Description This example demonstrates the initialization of the External Bus Interface Unit - EBIU (asynchronous access), Timer 0, FIO pins, Interrupts and the on-board Flash, which allows access to the six LEDs on the EZ-KIT....
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This note was uploaded on 02/10/2012 for the course ECE 3551 taught by Professor Staff during the Spring '11 term at FIT.

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Lab2 LED_LabExampleDetails-save - Microcomputer Systems 1...

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