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wcoref4_pcb [2017/09/16 09:43]
latigid_on [Assembly]
wcoref4_pcb [2018/12/18 09:36] (current)
latigid_on [BOM v1.0]
Line 28: Line 28:
  
 ===== BOM v1.0 ===== ===== BOM v1.0 =====
 +
 +**Please find the current BOM on [[http://​midiphy.com]]. The table below is depreciated and will not be updated.**
  
 ^Type     ​^Qty ^Value  ​  ​^Package ^Parts^Mouser^Reichelt^Conrad^Other^Notes^ ^Type     ​^Qty ^Value  ​  ​^Package ^Parts^Mouser^Reichelt^Conrad^Other^Notes^
 ^Resistors^^^^^^^^^^  ^Resistors^^^^^^^^^^
 |         ​|1 ​   |330R 5%   ​|THT ​        ​|R102 ​        ​| ​     |        |      |     | | |         ​|1 ​   |330R 5%   ​|THT ​        ​|R102 ​        ​| ​     |        |      |     | |
-|         |   ​|1k ​  ​5% ​  ​|1206 ​       |R7B1-4 ​      |      |        |      |     | |+|         |1    |560R 5%   ​|THT ​        ​|R33D ​       |      |        |      |     | | 
 +|         ​|3 ​   ​|1k ​  ​5% ​  ​|1206 ​       |R33A,​B,​C ​     ​|      |        |      |     | |
 |         ​|2 ​   |1k   ​5% ​  ​|THT ​        |R11, R13     ​| ​     |        |      |     | | |         ​|2 ​   |1k   ​5% ​  ​|THT ​        |R11, R13     ​| ​     |        |      |     | |
 |         ​|2 ​   |2k2 5%   ​|THT ​        |R7A, R8A     ​| ​     |        |      |     | | |         ​|2 ​   |2k2 5%   ​|THT ​        |R7A, R8A     ​| ​     |        |      |     | |
Line 55: Line 58:
 |         ​|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(?​)| ​       |      |     | | |     
Line 63: Line 66:
  
 ===== Versions ===== ===== Versions =====
 +
 +v1.2: general release. Changes:
 +
 +  * The [[wcore_usb|USB]] board is now combined with the wCore. It can be used as is or broken apart and the USB reconnected with wires, a 2.54mm header or a 10-pin Micro-MaTch connector.
 +  * Resistors R7B1-4 were renamed properly to R33A-D. R33**D** should have a different value (560~820R) than R33A/B/C (1k). Using longer cables on J15A/B and a smaller resistance for R33D could lead to displays not initialising properly. ​
 +  * There is a circular silkscreen mark that aligns with the same mark on the Waveshare breakout.
 +
  
 v1.0: first release. v1.0: first release.
Line 69: Line 79:
  
 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 "FLASH"
   * There'​s another switch to select the +5V power. It should be set to "​USB"​ when flashing the board using the USB mini connector as a power source, but for our purposes set it to "PWR 5V".   * There'​s another switch to select the +5V power. It should be set to "​USB"​ when flashing the board using the USB mini connector as a power source, but for our purposes set it to "PWR 5V".
  
wcoref4_pcb.1505554988.txt.gz · Last modified: 2017/09/16 09:43 by latigid_on