Lift control unit, Electrical Engineering

You are required to design and document  the hardware design  for a 68HC12D60 based Lift Control Unit (LCU). This design includes  the Input/Output hardware for interfacing with  lift equipment, display, external memory and bus circuitry as described in questions below.

1.  Block Diagram

Draw a block diagram showing all the hardware components of the lift and the proposed lift control unit (including the I/O ports of the HC12), clearly showing the connection of signals between them.

2.  Microprocessor support

Draw a circuit diagram showing the minimum components needed to correctly operate the HC12  D60 microprocessor in normal expanded narrow mode.  (That is  -  for  external memory using an 8 bit data bus) You should ensure that:

(a)  power is provided to the HC12 (assume a regulated 5V supply is available)

(b)  interrupts are in their inactive condition

(c)  the microprocessor E clock operates at 8MHz

(d)  a reset circuit is provided.

(e)  data and address buffers/latches are used as required.

You must specify part numbers and suggest values for any components used.

3.  Memory Decoding

You must determine the amount of RAM required to meet the data storage requirements of the system for a 6 month operation of the lift. (Report your calculations for this as part of this question) Draw a circuit diagram  for  the  address decoding  hardware  required  to decode external memory  attached to  the HC12D60 microcontroller,  to match  the memory map  of figure 1. You must show how the E clock signal from a HC12 is used in the circuit to enable the decoders at the correct time in the microprocessor cycle. Clearly identify all ICs used, label all pins on all parts and label the signals coming to and from the parts.

Posted Date: 3/8/2013 4:37:19 AM | Location : United States

Related Discussions:- Lift control unit, Assignment Help, Ask Question on Lift control unit, Get Answer, Expert's Help, Lift control unit Discussions

Write discussion on Lift control unit
Your posts are moderated
Related Questions
Athree-phase,wye-connected, 220-V, 10-hp, 60- Hz, six-pole inductionmotor (using Figure 13.2.6 for notation) has the following parameters in ohms per phase referred to the stator:

Q. In plotting a hysteresis loop the following scales are used: 1 cm = 400 At / mand 1 cm=0.3 T. The area of the loop for a certain magnetic material is found to be 6.2 cm 2 . Calc

Q. Show Function of Compensating Plate in interferometer? In absence of plate G2 the reflected ray passes the plate G1 twice, whereas the transmitted ray does not passes even o

ANI AND Immediate  with Accumulator Instruction 8 bit  data specified  in the  instruction is logically  AND with the  contents  of the  accumulator. The result is stored  in

Need a project in Optoelectronic with simulation in Optispice or Matlab.with complete report and presentation. ANy ideat about project and how much does it cost.

project for solar panel for farms in Saudi Arabia

Q. A 10-kVA, 200:400-V, single-phase transformer gave these test results: • Open-circuit test (LVwinding supplied): 200V, 3.2 A, 450 W • Short-circuit test (HV winding suppli

Q. Show Maximum Common-Mode Input Voltage of amplifier? This is the maximum voltage that the two inputs can be raised above ground potential before the op amp becomes nonlinear

jsidjsiod dkndkdisd dknssbs bsjbabd asj u dhihf ujojdsajfs sjssaidhsidw idgsdusadidjwap ewkeowr krwnrh bwvr [ wrj wrj 1 nnwoi khiwrjw ko e woewerijr rjwr jr rjhpr

Normal 0 false false false EN-IN X-NONE X-NONE Life   Interactive UPS Systems