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wcoref4_pcb [2017/09/16 09:43]
latigid_on [Assembly]
wcoref4_pcb [2017/10/04 22:01]
latigid_on
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 |         ​|9 ​   |2*5   ​|male ​                         |      |        |      |     | | |    |         ​|9 ​   |2*5   ​|male ​                         |      |        |      |     | | |   
 |         ​|3 ​   |2*8   ​|male ​                         |      |        |      |     | | | |         ​|3 ​   |2*8   ​|male ​                         |      |        |      |     | | |
-|         ​|2 ​   |2*25   ​|female ​                         |      |        |      |     | | |+|         ​|2 ​   |2*25   ​|female ​                         |      |        |      |     | |solder before male headers ​|
 ^Hardware^^^^^^^^^^ ^Hardware^^^^^^^^^^
 |         ​|4 ​   |      |M3 spacer ​                    ​|8mm(?​)| ​       |      |     | | |      |         ​|4 ​   |      |M3 spacer ​                    ​|8mm(?​)| ​       |      |     | | |     
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 The following build order is suggested: The following build order is suggested:
-  * R7B1-4 (1k) and located near J15_S on the top side +  * R7B1-4 (1k 1206) and located near J15_S on the top side 
-  * R7B and R8B (2k2) on the bottom side +  * R7B and R8B (2k2 1206) on the bottom side 
-  * C1A, C1B and C2 on the bottom side +  * C1A, C1B and C2 (100n 1206) on the bottom side 
-  * IC1A, IC1B and IC2 on the bottom side +  * IC1A, IC1B (74HCT125) ​and IC2 (74HC595) ​on the bottom side 
-  * Top-side THT components +  * Top-side THT resistors R7A 2k2, R8A 2k2, R11 1k, R12 10k, R13 1k and diode 
-  * Bottom-side THT components+  * Bottom-side THT resistors R101 220k, R102 330R 
 +  * Top-side transistor and trimpots
   * Bottom-side JPA0 header   * Bottom-side JPA0 header
   * Bottom-side 2*25 pin female headers   * Bottom-side 2*25 pin female headers
 +    * for a SEQ v4+ build, consider omitting headers J4B, J5A, J5B, J10A, J10B and J18
   * Top-side male headers, except for J1   * Top-side male headers, except for J1
-  * Solder J1 in conjunction with the USB module+  * Solder J1 in conjunction with the [[wcore_usb|USB module]]
   * Mounting brackets if needed   * Mounting brackets if needed
  
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 {{:​wcore:​crystal_removed.jpg?​nolink&​400|}} {{:​wcore:​crystal_removed.jpg?​nolink&​400|}}
  
-  * Looking at the top side of the PCB (with all headers etc.) and J1 at the "​northern"​ edge, the Core 407v board plugs in on the bottom side with the JTAG header ​towards ​the right+  * The Core 407v board plugs in on the bottom side with the the USB mini connector located below J4A. 
 +  * Explained another way: the JTAG header ​should be somewhat aligned with the 2-pin CAN header J18: 
 + 
 +{{:​wcore:​mounted.png?​nolink&​400|}} 
 + 
 +    * The 407v board should not protrude past the edge of the PCB.
   * Remove the OTG jumpers "​FLG,"​ "​VBUS"​ and "PWR OUT." USB won't work properly with these closed.   * Remove the OTG jumpers "​FLG,"​ "​VBUS"​ and "PWR OUT." USB won't work properly with these closed.
   * I believe that the correct state of the BOOT CONFIG switch should be set to "​SYSTEM"​   * I believe that the correct state of the BOOT CONFIG switch should be set to "​SYSTEM"​
wcoref4_pcb.txt · Last modified: 2018/08/20 21:29 by latigid_on