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cmod_a7:cmod_a7:cmod_a7_stopwatch:start [2016/07/15 21:25] – Brandon Kallahercmod_a7:cmod_a7:cmod_a7_stopwatch:start [2021/05/14 23:06] (current) – ↷ Links adapted because of a move operation Arthur Brown
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 +====== Cmod A7 Stopwatch Demo ======
  
-====== CmodA7 Stopwatch - WIP ====== +Using the CmodA7 and a 4-digit seven-segment display, this project creates a 10 second stopwatch with millisecond resolution.
-//Overview//+
  
-This Page is a WIP. Information **will** change+===== Prerequisites =====
  
-//images/video//+=== Skills === 
 +  * Basic familiarity with Vivado 
 +  * Familiarity with programming the GPIO of the CmodA7 
 +    * Follow the [[learn:programmable-logic:tutorials:cmod-a7-gpio-demo:start|CmodA7 GPIO Demo]]
  
-===== Prerequisites =====+=== Software === 
 +  * Vivado Design Suite
  
-Follow the [[learn:programmable-logic:tutorials:cmod-a7-gpio-demo:start|CmodA7 GPIO Demo]] +=== Hardware ===
-==== Software ==== +
-  * Vivado +
-==== Hardware ====+
   * CmodA7-15T or CmodA7-35T   * CmodA7-15T or CmodA7-35T
   * Four Digit 7-segment Display   * Four Digit 7-segment Display
   * Breadboard   * Breadboard
   * Jumper Wires   * Jumper Wires
 +
 ===== Procedure ===== ===== Procedure =====
-=== Wiring the CmodA7 to the 7-segment Display ====+==== 1. Wiring the CmodA7 to the 7-segment Display ====
  
 This step may be different depending on your 7-segment display. The one used in this project has the following pinout: This step may be different depending on your 7-segment display. The one used in this project has the following pinout:
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 </columns> </columns>
  
-For more information on Seven-Segment Displays see the [[reference:programmable-logic:nexys-4-ddr:reference-manual#seven-segment_display|Nexys 4 DDR Wiki]] section on them.+Place the Seven-Segment Display and CmodA7 in the breadboard. Using the Jumper Wires Connect the two parts using the following table as a guide. The display being used may have a different pin-out. If this is the case find the datasheet and wire according to that.
  
 <columns 100% - 40%  - -> <columns 100% - 40%  - ->
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 <newcolumn> <newcolumn>
  
-^  Signal  ^  Seven-Segment\\ Pin Number  ^  CmodA7\\ Pin Number  ^ +^  Wiring Table                                                               ||| 
-^ Cathode A |  11  |  8  | +^  Signal                ^  Seven-Segment\\ Pin Number  ^  CmodA7\\ Pin Number  ^ 
-^ Cathode B |  7  |  6  | +^ Cathode A              |  11                          |  8                    | 
-^ Cathode C |  4  |  42  | +^ Cathode B              |  7                           |  6                    | 
-^ Cathode D |  2  |  40  | +^ Cathode C              |  4                           |  42                   | 
-^ Cathode E |  1  |  39  | +^ Cathode D              |  2                           |  40                   | 
-^ Cathode F |  10  |  7  | +^ Cathode E              |  1                           |  39                   | 
-^ Cathode G |  5  |  43  | +^ Cathode F              |  10                          |  7                    | 
-^ Decimal Point Cathode |  3  |  41  | +^ Cathode G              |  5                           |  43                   | 
-^ Digit 1 Anode |  12  |  3  | +^ Decimal Point Cathode  |  3                           |  41                   | 
-^ Digit 2 Anode |  9  |  2  | +^ Digit 1 Anode          |  12                          |  3                    | 
-^ Digit 3 Anode |  8  |  2  | +^ Digit 2 Anode          |  9                           |  2                    | 
-^ Digit 4 Anode |  6  |  48  |+^ Digit 3 Anode          |  8                           |  1                    | 
 +^ Digit 4 Anode          |  6                           |  48                   | 
  
 <newcolumn> <newcolumn>
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 </columns> </columns>
  
-=== Programming the CmodA7 ====+When the wiring is done the breadboard should look something like this: 
 + 
 +{{ :cmod_a7:cmod_a7:cmod_a7_stopwatch:cmoda7_stopwatch_wiring.jpg?500 |}} 
 + 
 +For more information on Seven-Segment Displays see the [[programmable-logic:nexys-4-ddr:reference-manual#seven-segment_display|Nexys 4 DDR Wiki]] section on them. 
 + 
 +==== 2. Programming the CmodA7 ==== 
 + 
 +== 2.0 Open Vivado ==
  
 From Vivado open the Hardware Manager and open a target. From Vivado open the Hardware Manager and open a target.
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 {{ :cmod_a7:cmod_a7:cmod_a7_stopwatch:open_target.png?200 |}} {{ :cmod_a7:cmod_a7:cmod_a7_stopwatch:open_target.png?200 |}}
  
-There are two options for programming the CmodA7:+After the CmodA7 connects there are two options for programming:
  
-== 1. JTAG ==+== 2.1. JTAG ==
  
 This will program the FPGA directly, the program will not run after a power cycle. This will program the FPGA directly, the program will not run after a power cycle.
  
-Download the BIT file for your board: {{:cmod_a7:cmod_a7:cmod_a7_stopwatch:stopwatch_15t_bit.zip |CmodA7-15T}} {{:cmod_a7:cmod_a7:cmod_a7_stopwatch:stopwatch_35t_bit.zip |CmodA7-35T}}+**2.1.1:** Download and extract the BIT file for your board: {{:cmod_a7:cmod_a7:cmod_a7_stopwatch:stopwatch_15t_bit.zip |CmodA7-15T}} {{:cmod_a7:cmod_a7:cmod_a7_stopwatch:stopwatch_35t_bit.zip |CmodA7-35T}}
  
-In the Hardware Manager click Program device (in the green bar) then the device to program from the drop-down. Select the bit file and click program. Once the programming window closes the board is ready.+**2.1.2:** In the Hardware Manager click Program device (in the green bar) then the device to program from the drop-down. Select the bit file and click program. Once the programming window closes the board is ready.
  
-== 2. QUAD-SPI ==+{{ :cmod_a7:cmod_a7:cmod_a7_stopwatch:programdevice.png?500 |}} 
 + 
 +== 2.2. Quad-SPI ==
  
 This will program the on-board flash memory, the program will run after a power cycle. This will program the on-board flash memory, the program will run after a power cycle.
  
-Download the BIN file for your board: {{:cmod_a7:cmod_a7:cmod_a7_stopwatch:stopwatch_15t_bin.zip |CmodA7-15T}} {{:cmod_a7:cmod_a7:cmod_a7_stopwatch:stopwatch_35t_bin.zip |CmodA7-35T}}+**2.2.1:** Download and extract the BIN file for your board: {{:cmod_a7:cmod_a7:cmod_a7_stopwatch:stopwatch_15t_bin.zip |CmodA7-15T}} {{:cmod_a7:cmod_a7:cmod_a7_stopwatch:stopwatch_35t_bin.zip |CmodA7-35T}}
  
-In the Program Manager right click on the device and click Add Configuration Memory Device.+**2.2.2:** In the Program Manager right click on the device and click Add Configuration Memory Device.
  
-In the next window select the **n25q32-3.3v-spix1_x2_x4** device and click OK in the next window to program the device now.+{{ :cmod_a7:cmod_a7:cmod_a7_stopwatch:addconfigmem.png?500 |}}
  
-Select the BIN file that was downloaded above and click OK.+**2.2.3:** In the next window select the **n25q32-3.3v-spix1_x2_x4** device and click OK in the next window to program the device now. 
 + 
 +{{ :cmod_a7:cmod_a7:cmod_a7_stopwatch:memselection.png?500 |}} 
 + 
 +**2.2.4:** Select the BIN file that was downloaded above and click OK. 
 + 
 +{{ :cmod_a7:cmod_a7:cmod_a7_stopwatch:progmemdevice.png?500 |}}
  
 The flash will be programmed and will need to be power cycled in order to load the program from the memory. The flash will be programmed and will need to be power cycled in order to load the program from the memory.
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 To start the stopwatch press BTN0. To stop and reset the stopwatch press BTN1. To start the stopwatch press BTN0. To stop and reset the stopwatch press BTN1.
 +
 +{{ :cmod_a7:cmod_a7:cmod_a7_stopwatch:cmoda7_stopwatch_on.jpg?500 |}}
  
 {{tag>learn programmable-logic project cmod-a7}} {{tag>learn programmable-logic project cmod-a7}}