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spiffchorder:sample_layout [2008/05/21 14:38]
priestdo
spiffchorder:sample_layout [2008/05/21 14:51] (current)
priestdo
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 Component names and numbers match those used on the [[hardware]] page. Component names and numbers match those used on the [[hardware]] page.
 </​columns>​ </​columns>​
 +
 +
  
  
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 This layout if for a seven key chorder, no LEDs, ISP or pull-up resistors. This layout if for a seven key chorder, no LEDs, ISP or pull-up resistors.
  
-It uses two 28 pin DIP wirewrap sockets and no breadboard.  The IC uses one of the sockets. ​ The components are all soldered into the other socket. ​ Then the sockets are connected using wirewrap.  ​+It uses two 28 pin DIP wirewrap sockets and either ​no perfboard or a piece of perfboard that is about 4x36 holes big (a little longer than the two sockets and only as wide as a socket).  The IC uses one of the sockets.  The components are all soldered into the other socket.  Then the sockets are connected using wirewrap.  ​
  
-In practice all ground lines are brought ​togther ​and solderd ​to the ground line of the USB cable and all VCC lines are brought together and soldered to the VCC line of the USB cable.+In practice all ground lines are brought ​together ​and soldered ​to the ground line of the USB cable and all VCC lines are brought together and soldered to the VCC line of the USB cable.
  
-In like fashion, the lines for the keyswitches are brought out to, and soldered to one side of each of the switches and a ground line is run to the other.+In like fashion, the lines for the keyswitches are brought out and soldered to one side of each of the key switches and a ground line is run to the other side of the key switches.
  
-While a graphic is provided for referance, the wireing ​chart below should be used when doing the wraping.  Check off each connection on the chart as you go.+While a graphic is provided for reference, the wiring ​chart below should be used when doing the wrapping.  Check off each connection on the chart as you go.
  
 For the largest version of the graphic, select it to enlarge, then select it again. For the largest version of the graphic, select it to enlarge, then select it again.
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 ^Chart One|||| ^Chart One||||
-        ​||^notes| +        ​||^notes| 
-|1|  ​X1  ​|28| +|1|  X1  |28| 
-|2|  |27|2nd row left blank| +|2|  |27|2nd row left blank| 
-|3|  ​C1  ​|26| +|3|  C1  |26| 
-|4|  ​C2  ​|25| +|4|  C2  |25| 
-|5|  |24|5th row left blank| +|5|  |24|5th row left blank| 
-|6|  ​C5  ​|23| +|6|  C5  |23| 
-|7|  ​R4  ​|22| +|7|  R4  |22| 
-|8|  ​D2  ​|21|orientation is significant| +|8|  D2  |21|orientation is significant| 
-|9|  ​R3  ​|20| +|9|  R3  |20| 
-|10|  ​D1  ​|19|orientation is significant| +|10|  ​D1  |19|orientation is significant| 
-|11|  ​R2  ​|18| +|11|  ​R2  |18| 
-|12|  ​R1  ​|17| +|12|  ​R1  |17| 
-|13|  ​C3  ​|16| +|13|  ​C3  |16| 
-|14|  ​C4  ​|15|orientation is significant|+|14|  ​C4  |15|orientation is significant|
  
-** Warning ** I have not yet wired up the wirewrap board, once I have (and as such confirmed that the wire chart below is correct) I will remove this warning -Greg+** Warning ** //I have not yet wired up the wirewrap board, once I have (and as such confirmed that the wire chart below is correct)// I will remove this warning -Greg
  
-Next use a wirewrap tool to connect the pairs of pins indicated in Chart Two.  **Remember to take into account that you are turning the socket upside down when you wrap**. Check your pin numbers carefully. Check off the boxes in the first column when you wrap them, check off the third column when you confirm the wireing ​with a continuity meter. I will post photos with lables ​once I make this version of the chorder. ​+Next use a wirewrap tool to connect the pairs of pins indicated in Chart Two.  ​Consider your final placement of the sockets and make your lines long enough to accommodate.  With this layout you could place a small amount of non conductive material between the sockets and place them bottom side to bottom side once you have tested the circuit and trimmed the long pins on the sockets. ​**Remember to take into account that you are turning the socket upside down when you wrap**. Check your pin numbers carefully. Check off the boxes in the first column when you wrap them, check off the third column when you confirm the wiring ​with a continuity meter. You may find it helpful to use a little double sided tape to hold the sockets down to your work surface while wirewrapping. I will post photos with labels ​once I make this version of the chorder. ​
 <​columns>​ <​columns>​
 ^Chart Two ||| ^Chart Two |||
-^wired^ ​components  ​^  ​tested  ​+^wired^ ​components  ​^  tested  ​
-|[ ]|  CS-1  ​CS-4  ​|[ ]| +|[ ]|  CS-1  CS-4  |[ ]| 
-|[ ]|  CS-5  ​CS-23  ​|[ ]| +|[ ]|  CS-5  CS-23  |[ ]| 
-|[ ]|  CS- VCC   |[ ]| +|[ ]|  CS-6  VCC   |[ ]| 
-|[ ]|  CS- GND   |[ ]| +|[ ]|  CS-8  GND   |[ ]| 
-|[ ]|  CS-10 GND   |[ ]| +|[ ]|  CS-10 GND   ​|[ ]| 
-|[ ]|  CS-11 GND   |[ ]| +|[ ]|  CS-11 GND   ​|[ ]| 
-|[ ]|  CS-12 VCC   |[ ]| +|[ ]|  CS-12 VCC   ​|[ ]| 
-|[ ]|  CS-13 CS-14  ​|[ ]| +|[ ]|  CS-13 CS-14  |[ ]| 
-|[ ]|  CS-14 VCC   |[ ]| +|[ ]|  CS-14 VCC   ​|[ ]| 
-|[ ]|  CS-15 GND   |[ ]| +|[ ]|  CS-15 GND   ​|[ ]| 
-|[ ]|  CS-16 CS-15  ​|[ ]| +|[ ]|  CS-16 CS-15  |[ ]| 
-|[ ]|  CS-18 CS-17  ​|[ ]| +|[ ]|  CS-18 CS-17  |[ ]| 
-|[ ]|  CS-18 USB-2  ​|[ ]| +|[ ]|  CS-18 USB-2  |[ ]| 
-|[ ]|  CS-19 CS-18  ​|[ ]| +|[ ]|  CS-19 CS-18  |[ ]| 
-|[ ]|  CS-20 CS-19  ​|[ ]| +|[ ]|  CS-20 CS-19  |[ ]| 
-|[ ]|  CS-21 USB-3  ​|[ ]| +|[ ]|  CS-21 USB-3  |[ ]| 
-|[ ]|  CS-22 CS-21  ​|[ ]| +|[ ]|  CS-22 CS-21  |[ ]| 
-|[ ]|  CS-23 GND   |[ ]| +|[ ]|  CS-23 GND   ​|[ ]| 
-|[ ]|  CS-25 GND   |[ ]| +|[ ]|  CS-25 GND   ​|[ ]| 
-|[ ]|  CS-26 GND   |[ ]| +|[ ]|  CS-26 GND   ​|[ ]| 
-|[ ]|  CS-28 CS-3  ​|[ ]| +|[ ]|  CS-28 CS-3  |[ ]| 
-|  |  |  | +|  |  |  | 
-|[ ]|  IC-2   CS-9  ​|[ ]| +|[ ]|  IC-2   ​CS-9  |[ ]| 
-|[ ]|  IC-4   CS-7  ​|[ ]| +|[ ]|  IC-4   ​CS-7  |[ ]| 
-|[ ]|  IC-7   CS-6  ​|[ ]| +|[ ]|  IC-7   ​CS-6  |[ ]| 
-|[ ]|  IC-8   CS-5  ​|[ ]| +|[ ]|  IC-8   ​CS-5  |[ ]| 
-|[ ]|  IC-9   CS-1  ​|[ ]| +|[ ]|  IC-9   ​CS-1  |[ ]| 
-|[ ]|  IC-10  ​CS-28  ​|[ ]| +|[ ]|  IC-10  CS-28  |[ ]| 
-|[ ]|  IC-12  ​SW-7  ​|[ ]| +|[ ]|  IC-12  SW-7  |[ ]| 
-|[ ]|  IC-14  ​SW-1  ​|[ ]| +|[ ]|  IC-14  SW-1  |[ ]| 
-|[ ]|  IC-15  ​SW-2  ​|[ ]| +|[ ]|  IC-15  SW-2  |[ ]| 
-|[ ]|  IC-16  ​SW-3  ​|[ ]| +|[ ]|  IC-16  SW-3  |[ ]| 
-|[ ]|  IC-17  ​SW-4  ​|[ ]| +|[ ]|  IC-17  SW-4  |[ ]| 
-|[ ]|  IC-18  ​SW-5  ​|[ ]| +|[ ]|  IC-18  SW-5  |[ ]| 
-|[ ]|  IC-19  ​SW-6  ​|[ ]| +|[ ]|  IC-19  SW-6  |[ ]| 
-|   ​| ​   |  | +|   |  ​  ​|  | 
-|[ ]|  SW-1-7(GND) ​GND   |[ ]| +|[ ]|  SW-1-7(GND) ​GND   ​|[ ]| 
-|   ​| ​                +|   |               ​  ​
-|[ ]|  USB-1 VCC   |[ ]| +|[ ]|  USB-1 VCC   ​|[ ]| 
-|[ ]|  USB-4 GND   |[ ]|+|[ ]|  USB-4 GND   ​|[ ]|
 NEWCOL NEWCOL
 ^key for Chart Two|| ^key for Chart Two||
-| CS-# | component socket pin number, 28 pin dip holding the circut components  ​+| CS-# | component socket pin number, 28 pin dip holding the circuit components  ​
-| IC-# | IC socket socket pin number, 28 pin dip holding the AVR atmega168 ​ic  ​+| IC-# | IC socket socket pin number, 28 pin dip holding the AVR atmega168 ​ic  
-| SW-# | Switch number, each switch has 2 pins.  One pin is wired to the IC, the other to Ground | +| SW-# | Switch number, each switch has 2 pins.  One pin is wired to the IC, the other to Ground | 
-| USB-#  | The four lines of the usb cable (see [[hardware]]) ​ | +| USB-#  | The four lines of the usb cable (see [[hardware]])  | 
-VCC  ​| power from line one of the usb cable  ​+VCC  | power from line one of the usb cable  ​
-GND  ​| Ground line from line 4 of the usb cable |+GND  | Ground line from line 4 of the usb cable |
 </​columns>​ </​columns>​
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spiffchorder/sample_layout.1211395115.txt.gz · Last modified: 2008/05/21 14:38 by priestdo
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