Differences

This shows you the differences between two versions of the page.

--- wcoref4_pcb [2017/10/04 22:01] – latigid_on
+++ wcoref4_pcb [2018/12/18 09:36] (current) – [BOM v1.0] latigid_on
@@ Line 28: / Line 28: @@
 ===== 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^
 ^Resistors^^^^^^^^^^
 |         |1    |330R 5%   |THT         |R102         |      |        |      |     | |
-|         |4    |1k   5%   |1206        |R7B1-4       |      |        |      |     | |
+|         |1    |560R 5%   |THT         |R33D        |      |        |      |     | |
+|         |3    |1k   5%   |1206        |R33A,B,C      |      |        |      |     | |
 |         |2    |1k   5%   |THT         |R11, R13     |      |        |      |     | |
 |         |2    |2k2 5%   |THT         |R7A, R8A     |      |        |      |     | |
@@ Line 63: / Line 66: @@
 ===== 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.
@@ Line 97: / Line 107: @@
     * 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.
-  * 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".