lecture9

lecture9 - FoundationsofEmbeddedSystems ATermSpring2008

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Foundations of Embedded Systems A Term Spring 2008 Lecture #9: Passing the Time: Introduction to Clocks and Timers Reading for Today: MSP430 User's Guide 4, 11 Reading for Next Class: MSP430 User's Guide 13, Notes HW #3 (on web):                   Due Friday 9/19/2008 Lab #1 (on web): Due Tomorrow 9/16/2008 Lab #2 (on web): Due Tuesday 9/30/2008 This Class :  Systems clocks and measuring the passage of time in embedded systems MSP430F449 Peripherals   -- The “Standard Options”        6 Digital IO Ports        Hardware Multiplier    (used by default in C for *) FLL/System Clock module   today 3  Timers  ADC (8 channel 12 BIT) 2 USARTs  (SPI) ----------------------------------------      Comparator  Op Amps Flash memory controller  LCD Controller DMA controller >> Program control and operation of most of these peripherals is similar -- One or more Control Registers  -- One or more Data Registers -- All are memory mapped
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All register names and even control bit names are already defined in msp430x4xx.h  --  Read from and write to register names as if they were C variables! -- Will 
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lecture9 - FoundationsofEmbeddedSystems ATermSpring2008

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