wcoref4_pcb
Differences
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wcoref4_pcb [2017/10/04 22:01] latigid_on |
wcoref4_pcb [2018/08/20 21:29] latigid_on |
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| ^Resistors^^^^^^^^^^ | ^Resistors^^^^^^^^^^ | ||
| | |1 |330R 5% |THT |R102 | | | | | | | | |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 |1k 5% |THT |R11, R13 | | | | | | | ||
| | |2 |2k2 5% |THT |R7A, R8A | | | | | | | | |2 |2k2 5% |THT |R7A, R8A | | | | | | | ||
| Line 63: | Line 64: | ||
| ===== 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 97: | Line 105: | ||
| * The 407v board should not protrude past the edge of the PCB. | * 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.txt · Last modified: 2018/12/18 09:36 by latigid_on
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