6 rows of cherry-compatible switches, plate mounted.
1st row - SW0 (ESC) - SW15
2nd row - SW36 - SW20
3rd row - SW37 - SW53
Extra SW97-1 instead of SW50
4th row - SW73 - SW62, SW98-1 last
Extra SW98-1 instead of SW61
5th row - SW74 - SW86
6th row - SW103 - SW93
SW97, SW98 exist in this row despite those extra switches with -1 suffix
Switch contacts are connected on one side to Rx and other to ~D_Cx (custom netname, check customizations section)~
Switch LEDs are connected on one side to LEDx (derived from VDD5V) and other to VDRx (derived from GND)
What looks like GND pad is actually a very short trace to nearby long trace
They are part of switch footprint, despite being two components!
DRx - Rows for LED diodes muxing DR0 .. DR5
DR4 -> RR4 / QR4 / R4
DR5 -> RR5 / QR5 / R5
Pin3 of QR5 (collector) has netname VDR5
Pin2 of QR5 (emitter) is connected to GND
Rx - Rows for switches muxing - R0 .. R5. Connected directly to switch contacts.
Cx - Columns for both switch (through diode) and LED muxing (through QCx transistors)
C17 -> RC17 -> QC17
Pin3 of QC17 (collector) has netname LED17
Pin2 of QC17 (emitter) is connected to VDD5V
Pin1 of QC17 (base) is connected to RC17 and has netname R_C17 (customized netname)
C17 -> SW14 / SW21 / SW52 / SW52 / SW86 / SW94 (connection to switch contact through a diode)
Customizations (deviations from BYKxxx conventions) in this repo:
Netname between diode and switch contact will be called D_Cx to make it easier to highlight with OpenBoardView using prefix search feature. This way both D_C and C prefixes can be highlighted as regex is not yet supported - usual way would be to have _R/_D/etc suffix.Thanks to this shorted every diode in a column, need to come up with a better netname
Netname between column transistor (QCxx) base will be called R_Cx for similar reasons as above
Conventions (as on RE-K70-BYK800 board)
SW0(ESC) -SW15SW36-SW20SW37-SW53SW97-1instead ofSW50SW73-SW62,SW98-1lastSW98-1instead ofSW61SW74-SW86SW103-SW93SW97,SW98exist in this row despite those extra switches with -1 suffixRxand other to ~D_Cx(custom netname, check customizations section)~LEDx(derived fromVDD5V) and other toVDRx(derived fromGND)GNDpad is actually a very short trace to nearby long traceDRx- Rows for LED diodes muxingDR0..DR5DR4->RR4/QR4/R4DR5->RR5/QR5/R5QR5(collector) has netnameVDR5QR5(emitter) is connected toGNDRx- Rows for switches muxing -R0..R5. Connected directly to switch contacts.Cx- Columns for both switch (through diode) and LED muxing (throughQCxtransistors)C17->RC17->QC17QC17(collector) has netnameLED17QC17(emitter) is connected toVDD5VQC17(base) is connected toRC17and has netnameR_C17(customized netname)C17->SW14/SW21/SW52/SW52/SW86/SW94(connection to switch contact through a diode)Customizations (deviations from BYKxxx conventions) in this repo:
Netname between diode and switch contact will be calledThanks to this shorted every diode in a column, need to come up with a better netnameD_Cxto make it easier to highlight with OpenBoardView using prefix search feature. This way bothD_CandCprefixes can be highlighted as regex is not yet supported - usual way would be to have _R/_D/etc suffix.Netname between column transistor (
QCxx) base will be calledR_Cxfor similar reasons as aboveReference pinout (mirrored):