Lecture Microcomputer principles and applications - Chapter 7: Timing generation and measurements

00:48:37<br /> <br /> Chapter 7<br /> Timing generation and<br /> measurements<br /> <br /> 00:48:37<br /> <br /> 7.1 Timer functions<br /> •<br /> •<br /> •<br /> •<br /> •<br /> <br /> Stop watch.<br /> Captures time of external events.<br /> Creates output waveform.<br /> Pulse accumulations.<br /> Creates periodic interrupts.<br /> <br /> Microcomputer principles and applications<br /> <br /> 00:48:37<br /> <br /> 7.1 Timer functions<br /> Triangle<br /> <br /> Sine<br /> Ramp up<br /> <br /> Ramp down<br /> <br /> Square<br /> <br /> Pulse<br /> <br /> Microcomputer principles and applications<br /> <br /> 00:48:37<br /> <br /> 7.2 MSP430 Timer<br /> •<br /> •<br /> •<br /> •<br /> •<br /> •<br /> <br /> Asynchronous 16-bit timer/counter with four operating modes.<br /> Selectable and configurable clock source.<br /> Two or three configurable capture/compare registers.<br /> Configurable outputs with PWM capability.<br /> Asynchronous input and output latching.<br /> Interrupt vector register for fast decoding of all Timer A<br /> interrupts.<br /> <br /> Microcomputer principles and applications<br /> <br /> 00:48:37<br /> <br /> 7.3 Timer A<br /> Generally MSP430 family contains two categories of timers<br /> •<br /> •<br /> <br /> Timer A<br /> Timer B.<br /> <br /> What is the difference between Timer A and Timer B?<br /> Same in operation, but Timer B is more sophisticated than Timer A<br /> and it has many features available than compared with Timer A.<br /> They are:<br /> •<br /> •<br /> •<br /> •<br /> <br /> Bit-length of the timer is programmable as 8-bit, 10- bit, 12-bit,<br /> 16-bit.<br /> Some Timers in B category have 7 CCR registers whereas the<br /> Timer A contains three capture/compare registers.<br /> It contains double-buffered CCR register.<br /> CCR register can be grouped.<br /> Microcomputer principles and applications<br /> <br />