User Tools
Differences
This shows you the differences between two versions of the page.
| Both sides previous revision Previous revision Next revision | Previous revision | ||
|
labs:seven_segment [2020/02/11 11:45] nelson [Preliminary] |
labs:seven_segment [2020/02/12 17:31] (current) ee220ta [Exercise #1 - Seven Segment SystemVerilog] |
||
|---|---|---|---|
| Line 82: | Line 82: | ||
| For example, to turn on only the right two digits of the eight digit display, AN1 and AN0 must have a logic value of **0** and the other anode signals must have a logic value of **1**. | For example, to turn on only the right two digits of the eight digit display, AN1 and AN0 must have a logic value of **0** and the other anode signals must have a logic value of **1**. | ||
| - | In the following example, two of the digits are turned on by setting their corresponding anode to one. All of the other digits are off since their anode signals are set to zero. In addition, the digit **3** is displayed based on which cathode signals have a logic **1**. The digit point is also on since the cathode signal, DP, associated with the digit point is set to **0**. | + | In the following example, two of the digits are turned on by setting their corresponding anode to zero. All of the other digits are off since their anode signals are set to one. In addition, the digit **3** is displayed based on which cathode signals have a logic **0**. The digit point is also on since the cathode signal, DP, associated with the digit point is set to **0**. |
| ^ A7 ^ A6 ^ A5 ^ A4 ^ A3 ^ A2 ^ A1 ^ A0 ^ | ^ A7 ^ A6 ^ A5 ^ A4 ^ A3 ^ A2 ^ A1 ^ A0 ^ | ||
| - | | 0 | 1 | 0 | 0 | 0 | 0 | 1 | 0 | | + | | 1 | 0 | 1 | 1 | 1 | 1 | 0 | 1 | |
| ^ CG ^ CF ^ CE ^ CD ^ CC ^ CB ^ CA ^ DP ^ | ^ CG ^ CF ^ CE ^ CD ^ CC ^ CB ^ CA ^ DP ^ | ||
| | 0 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | | | 0 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | | ||
| Line 91: | Line 91: | ||
| {{ :tutorials:eight_digit_display_example.png?640&nolink |}} | {{ :tutorials:eight_digit_display_example.png?640&nolink |}} | ||
| - | <color red>What would happen if all eight anode control signals were set to a logic value of **1** simultaneously in the example above?</color> | + | <color red>What would happen if all eight anode control signals were set to a logic value of **0** simultaneously in the example above?</color> |
| <color red>Determine what will be shown on the display with the following signal values.</color> Fill in the segments in the diagram below that will be turned on by this set of input signals. (You might use Paint or another program. It doesn't have to look great, it just has to be clear which character it is and which digits are lit.) | <color red>Determine what will be shown on the display with the following signal values.</color> Fill in the segments in the diagram below that will be turned on by this set of input signals. (You might use Paint or another program. It doesn't have to look great, it just has to be clear which character it is and which digits are lit.) | ||
| ^ A7 ^ A6 ^ A5 ^ A4 ^ A3 ^ A2 ^ A1 ^ A0 ^ | ^ A7 ^ A6 ^ A5 ^ A4 ^ A3 ^ A2 ^ A1 ^ A0 ^ | ||
| - | | 1 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | | + | | 0 | 1 | 1 | 1 | 0 | 1 | 1 | 1 | |
| ^ CG ^ CF ^ CE ^ CD ^ CC ^ CB ^ CA ^ DP ^ | ^ CG ^ CF ^ CE ^ CD ^ CC ^ CB ^ CA ^ DP ^ | ||
| | 1 | 1 | 1 | 1 | 0 | 0 | 0 | 1 | | | 1 | 1 | 1 | 1 | 0 | 0 | 0 | 1 | | ||
| Line 131: | Line 131: | ||
| <color red>Include your TCL simulation file in your report.</color> | <color red>Include your TCL simulation file in your report.</color> | ||
| - | **Exercise 1 Pass-off:** Show a TA your your SV code, tcl commands and simulation. \\ \\ | + | **Exercise 1 Pass-off:** Show a TA your SV code, tcl commands and simulation. \\ \\ |
