Frequency Measurement
A Motorola 68HC11EVBU Micro Controller System Design The project focuses on the hardware and software of an embedded system, such as a microcontroller, used to perform system design and analysis. The Motorola MC68HC11 was the microcontroller used for this project.The project represents the major change from a theoretical learning approach to a more independent and practical approach. It has demands a problem-solving technique used to translate real-world problems such as the one considered in this document (frequency measurement) by using hardware and software. Furthermore, this project creates an opportunity to integrate all aspects of the students' education including research and written communication, with emphasis on designing a complete and independent system.
DELAY SUBROUTINEMS_DELAYDELAY_LOOPLDX #223DELAY_1ms_LOOPNOPNOPDECBBNE DELAY_1ms_LOOPDECABNE DELAY_LOOPRTSTo initialize the LCD panel, the System Initialization subroutine is required. 3The circuit design for the adaptation of the MC68HC11 evaluation board to be used as a frequency counter is shown above. Signals up to one kilohertz were accurate. With the comparator at open-loop mode, and grounding the negative terminal, the output would either have a value at positive saturation or at ground. 1); is the frequency signal shaping circuit built on the evaluation board. Therefore, the software design is staggered throughout the whole term. Various subroutines that are written for each laboratory experiment compliment the final project, and are integrated accordingly. The input signal applied to the circuit is also monitored on the oscilloscope so that the accuracy of the measurements can be tested. FIGURE 1. However, when breakpoints were applied to the source code, it did not reach the proper address, rather it only reached location 2400 and did not initialize. 6INTRODUCTIONIn all areas of any industry, advances in technology have led to a high demand for quality and highly integrated microprocessors. When the program was compiled with the proper address required (hexadecimal number $00D0), it worked perfectly. 7V and with the peaks leveled off to one of those values. Only the main subroutines are discussed.
Common topics in this essay:
ACCURACY ANALYSIS,
Essentially Vpp,
Accuracy AnalysisKKKKKKK,
THEORY OPERATION,
Frequency Counter,
Motorola MC68HC11,
COUNTER FIGURE,
CONNECTION FIGURE,
Flowchart Frequency,
Systems Course,
lcd panel,
evaluation board,
jsr wr_to_com_reg,
frequency counter,
jsr wr_to_com_reg ldaa,
wr_to_com_reg ldaa,
software design,
hardware software,
mc68hc11 evaluation board,
system initialization,
initialization subroutine,
frequency signal,
system initialization subroutine,
jsr ms_delay ldaa,
design frequency counter,
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