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Lab2 LED_LabExampleDetails

Lab2 LED_LabExampleDetails - Microcomputer Systems 1...

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Microcomputer Systems 1 Interaction of ADSP-BF533  Ez-Kit Lite with the outside  world LAB2 Example
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2/11/12 Veton K ë puska 2 BF533 EZ-Kit Lite u The EZ-KIT Lite provides  n four (4) push buttons and  n six (6) LEDs for general-purpose IO. u 4 SW push-button switches n 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: u PF8 through PF11.  n A PF reads 1 when a corresponding switch is being pressed-on. When  the switch is released, the PF reads 0.  n A connection between the push button and PF input is established  through the SW9 DIP switch. u 6 LEDs n The six LEDs, labeled LED4 through LED9, are accessed via some of  the general-purpose IO pins of the flash memory interface.
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2/11/12 Veton K ë puska 3 BF533 EZ-Kit Lite
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2/11/12 Veton K ë puska 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
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2/11/12 Veton K ë puska 5 Push Button Enable Switch (SW9) u Positions:  n 1 through 4 : disconnect the drivers associated with the push buttons from the PF pins of the  processor. n 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.  u Table 2-6 shows which PF is driven when the switch is in the default (ON) position.
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2/11/12 Veton K ë puska 6 BF533 EZ-Kit Lite Circuit Schematics
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2/11/12 Veton K ë puska 7 Lab 1 Details u Source code directory contains an example ADSP-BF533 project that shows  how n Programmable Flag pins (FIO), n Interrupts, and  n Timer can be configured in “C”.  n It also demonstrates the access to the LEDs on the EZ-KIT Lite, which are  connected to the on-board Flash. u Files contained in this directory: n BF533 Flags C.dpj VisualDSP++ project file n main.c C file containing the main program and variable     declaration n Initialisation.c C file containing all initialization routines n ISRs.c C file containing the interrupt service routines for   Timer and FIO n BF533 Flags.h C header file containing prototypes and macros n readme.txtthis project description file
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2/11/12 Veton K ë puska 8 Lab 1: Functional Description u This example demonstrates the initialization of the  n External Bus Interface Unit - EBIU (asynchronous access),  n Timer 0,  n FIO pins, n Interrupts and the on-board Flash, which allows access to  the six LEDs on the EZ-KIT.
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