BLOCK DIAGRAMS

Block diagrams A way to show schematically the individual subsystems of a design with arrows to show the direction that signals flow through the subsystems. It is a quick way to determine what the subsystems do in the system without analysing the full circuit or looking at an entire software program.

Block diagrams A way to show schematically the individual subsystems of a design with arrows to show the direction that signals flow through the subsystems. Sometimes the blocks are labeled with the name of the subsystem.

Block diagrams A way to show schematically the individual subsystems of a design with arrows to show the direction that signals flow through the subsystems. Sometimes the blocks are labelled according to the mathematics that the subsystem performs on the input signal

Electronic Design Project I expect to see at least one block diagram for the entire system – the optical pulse meter in: Each team member’s notebook Changes in the design of subsystems should be shown by changes to the block diagram. For example, there will need to be a filter and an amplifier in the analogue portion of the circuit. If the order in which these two are changes as the team designs the pulse meter, then a new block diagram should be added to everyone’s lab notebook. The old block diagram should stay in the notebook! The final report The final presentation.

FLOWCHARTING

Flowchart Visual representation (a diagram) of the activities that will be performed to complete a task or project. Used frequently to describe the sequence of steps in a software programme. Also used to outline the tasks that need to be done on a manufacturing line or to complete a design project. In these cases, the flow chart is usually coupled with a Gantt chart.

Charts Flowchart Gantt Chart

Common Shapes NameDescription ActionA process or action such as a calculation, assignment, etc. Start/Begin and Stop/EndShows where the flow starts and stops DecisionIndicates that a decision has been made between 2 or more choices FlowlinesShows the order in which actions are to be completed ConnectorShows where a flow restarts when it doesn’t fit on a single page. Input/OutputIndicates where date is either collected, stored, or stored.

Examples of Flowcharts

Loops These are some times called Do loops For-Next loops If-Then statements If-Else statements While statements

Infinite Loops In Microelectronic Systems, we used while(1) to continuously loop through the mbed programs.

Single and Multiple Ends

Connector

Other Symbols flowchart

Electronic Design Project I expect to see at least one flowchart for the mbed software program in: Each team member’s notebook Use it when first thinking through how the program should be written. Use it to document the final version of the program. The final report The final presentation.