added cc1 and cc2 caps which were missing from PCB design, added more…

… ideas how to fix SAFE 5V PWR EN problem

elec/src/parts/usb_pd_ics/CYPD3177/submodules/CYPD3177_LoadSwitchSafe5V.ato

@@ -24,6 +24,7 @@ module CYPD3177_LoadSwitchSafe5V:
     # After checking last revision with similar circuit (Dev Edition 1), 
     # it turns out the voltages at gate, source, drain are the same as in new design.
     # So... the problem isn't new basically, I just removed the part of the electronics last time and ignored it that way
+    # TODO: test replacing two p channel mosfets with HSM4805 dual p channel mosfet (which I already use for 100W load switch)
     # TODO: Test fix - remove big caps
     # TODO: what other things did I change in comparison to previous version?
 

elec/src/parts/usb_pd_ics/CYPD3177/submodules/CYPD3177_WithCoreParts.ato

@@ -46,6 +46,22 @@ module CYPD3177_WithCoreParts:
     power_out_5v_load_switch.power_in ~ power_in
     power_out_5v_load_switch.power_out ~ power_out_5v
 
+    # TODO: add to PCB layout 
+    # Add 390pF caps for the CC1 and CC2 pins (as in eva)
+    cc1_cap = new Capacitor
+    cc1_cap.capacitance = 390pF +/- 5%
+    cc1_cap.footprint = "C0402"
+    cc1_cap.mpn = "C527008"
+    cc1_cap.power.vcc ~ ic.usb_pd.cc1
+    cc1_cap.power.gnd ~ gnd
+
+    cc2_cap = new Capacitor
+    cc2_cap.capacitance = 390pF +/- 5%
+    cc2_cap.footprint = "C0402"
+    cc1_cap.mpn = "C527008"
+    cc2_cap.power.vcc ~ ic.usb_pd.cc2
+    cc2_cap.power.gnd ~ gnd
+
     # Add 3.3uF cap for the VBUS of the USB-C port
     vbus_cap = new Capacitor
     vbus_cap.capacitance = 3.3uF +/- 10%
@@ -85,7 +101,7 @@ module CYPD3177_WithCoreParts:
 
     # Add a pull down resistor for the FAULT pin, so that it is not floating
     fault_pull_down_resistor = new Resistor
-    fault_pull_down_resistor.resistance = 100kohm +/- 1%
+    fault_pull_down_resistor.resistance = 100kohm +/- 5%
     fault_pull_down_resistor.footprint = "R0603"
     fault_pull_down_resistor.mpn = "C25803"
     fault_pull_down_resistor.p1 ~ ic.FAULT