Chrono
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* a user interface board with [[Media:Heb_lcd_schematic.pdf|4 buttons and 8 LEDs]] | * a user interface board with [[Media:Heb_lcd_schematic.pdf|4 buttons and 8 LEDs]] | ||
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| − | ===== | + | === Toplevel Block === |
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| − | + | * The [[Media:Chrono_Toplevel_Empty.pdf|empty toplevel block]] shows the circuit's inputs and outputs. | |
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== Getting started == | == Getting started == | ||
Revision as of 12:12, 25 November 2013
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The chrono project is an ElN project done at the end of the first semester. It consists in conrtolling a stepper motor which moves a pointer in a clockwise direction. It will emulate a stop watch.
Specification
The basic specification is the following one:
- On reset, the pointer moves to the start position (12 o'clock), it is given by a Reed sensor.
- When pos 2 button (Start) is pressed, the pointer will start counting seconds.
- When pos 3 button (Stop) is pressed, the pointer stops and waits at the actual location.
- When pos 1 button (Reset) is pressed, the pointer resets to the start position (12 o'clock).
as optional task a pos4 button (Set) can be pressed in order to halt the pointer, but the stop watch is still counting. By a second push of the set button the pointer moves to the actual stop watch time.
Components
The system consists of
- a Chrono assembly (not up to date, to be deleted)
- a chrononeter assembly with a stepper motor, a single hand and a Reed relay to give position 0
- an FPGA prototyping board
- a user interface board with 4 buttons and 8 LEDs
Design
Toplevel Block
- The empty toplevel block shows the circuit's inputs and outputs.
Getting started
In order to start the projects you should do the following:
- Read carefully the specifications above
- Consult the guides for the first steps
Additional Information
Additional informations for collaborators
