concludes d21 d51 bus align

2020-06_ucbus-stepper-melted/eagle.epf

@@ -265,7 +265,6 @@ UsedLibraryUrn="urn:adsk.eagle:library:196"
 UsedLibraryUrn="urn:adsk.eagle:library:197"
 UsedLibraryUrn="urn:adsk.eagle:library:198"
 UsedLibraryUrn="urn:adsk.eagle:library:199"
-UsedLibrary="C:/Dropbox/CBA/circuits/eagle/parts/810-22-003-40-005191.lbr"
 UsedLibrary="C:/Dropbox/CBA/circuits/eagle/parts/comm.lbr"
 UsedLibrary="C:/Dropbox/CBA/circuits/eagle/parts/connector.lbr"
 UsedLibrary="C:/Dropbox/CBA/circuits/eagle/parts/dfet.lbr"
@@ -285,8 +284,8 @@ UsedLibrary="C:/Dropbox/CBA/circuits/eagle/parts/usbraw.lbr"
 [Win_1]
 Type="Schematic Editor"
 Number=1
-File="2020-06_ucbus-stepper-melted.sch"
-View="142.399 22.4818 328.676 123.78"
+File="C:/dropbox/cba/advisory/bhutan/2021-09-14_lora/2021-07-20_loRA-jake.sch"
+View="32.1497 9.16998 132.794 77.8767"
 WireWidths=" 0.0762 0.1016 0.127 0.15 0.2 0.2032 0.254 0.3048 0.4064 0.508 0.6096 0.8128 1.016 1.27 2.54 0.1524"
 PadDiameters=" 0.254 0.3048 0.4064 0.6096 0.8128 1.016 1.27 1.4224 1.6764 1.778 1.9304 2.1844 2.54 3.81 6.4516 0"
 PadDrills=" 0.2 0.25 0.3 0.35 0.4 0.45 0.5 0.55 0.65 0.7 0.75 0.8 0.85 0.9 1 0.6"
@@ -325,20 +324,20 @@ ArcDirection=0
 AddLevel=2
 PadsSameType=0
 Layer=91
-Views=" 1: 142.399 22.4818 328.676 123.78"
+Views=" 1: 32.1497 9.16998 132.794 77.8767"
 Sheet="1"
 
 [Win_2]
 Type="Board Editor"
 Number=2
-File="2020-06_ucbus-stepper-melted.brd"
-View="8.9747 13.925 33.6679 40.1306"
+File="C:/dropbox/cba/advisory/bhutan/2021-09-14_lora/2021-07-20_loRA-jake.brd"
+View="12.7615 -1.4366 44.9353 36.7389"
 WireWidths=" 0.8 0.9 0.1 0.05 0.5 0 0.3 0.2032 0.1524"
 PadDiameters=" 0.254 0.3048 0.4064 0.6096 0.8128 1.016 1.27 1.4224 1.6764 1.778 1.9304 2.1844 2.54 3.81 6.4516 0"
-PadDrills=" 0.2 0.25 0.3 0.35 0.4 0.45 0.5 0.55 0.65 0.7 0.75 0.8 0.85 0.9 1 0.6"
+PadDrills=" 0.2 0.25 0.3 0.35 0.4 0.45 0.5 0.55 0.65 0.7 0.75 0.8 0.9 1 0.6 0.85"
 ViaDiameters=" 0.55 0.6 0.65 0.7 0.75 0.8 0.85 0.9 0.95 1 1.05 1.1 1.15 1.2 1.3 0"
-ViaDrills=" 0.2 0.25 0.45 0.5 0.55 0.6 0.65 0.7 0.75 0.8 0.85 0.9 1 0.35 0.4 0.3"
-HoleDrills=" 0.2 0.25 0.3 0.4 0.45 0.5 0.55 0.6 0.65 0.7 0.75 0.8 0.85 0.9 1 0.35"
+ViaDrills=" 0.2 0.25 0.45 0.5 0.55 0.6 0.65 0.7 0.75 0.8 0.9 1 0.35 0.4 0.3 0.85"
+HoleDrills=" 0.2 0.25 0.3 0.4 0.45 0.5 0.55 0.6 0.65 0.7 0.75 0.8 0.9 1 0.35 0.85"
 TextSizes=" 0.254 0.3048 0.4064 0.6096 0.8128 1.27 1.4224 1.6764 1.9304 2.1844 2.54 3.81 5.08 6.4516 1.778 1.016"
 PolygonSpacings=" 0.254 0.3048 0.4064 0.6096 0.8128 1.016 1.4224 1.6764 1.778 1.9304 2.1844 2.54 3.81 5.08 6.4516 1.27"
 PolygonIsolates=" 0.254 0.3048 0.4064 0.6096 0.8128 1.016 1.27 1.4224 1.6764 1.778 1.9304 2.1844 2.54 3.81 6.4516 0"
@@ -348,7 +347,7 @@ DimensionExtWidths=" 0.127 0.254 0.1 0.13 0.26 0"
 DimensionExtLengths=" 1.27 2.54 1 2 3 0"
 DimensionExtOffsets=" 1.27 2.54 1 2 3 0"
 SmdSizes=" 0.3048 0.1524 0.4064 0.2032 0.6096 0.3048 0.8128 0.4064 1.016 0.508 1.27 0.6604 1.4224 0.7112 1.6764 0.8128 1.778 0.9144 1.9304 0.9652 2.1844 1.0668 2.54 1.27 3.81 1.9304 5.08 2.54 6.4516 3.2512 1.27 0.635"
-WireBend=3
+WireBend=1
 WireBendSet=0
 WireCap=1
 MiterStyle=1
@@ -370,7 +369,7 @@ SwapLevel=0
 ArcDirection=0
 AddLevel=2
 PadsSameType=0
-Layer=15
+Layer=1
 
 [Win_3]
 Type="Control Panel"

firmware/stepper-drop/src/config.h

@@ -4,11 +4,16 @@
 
 // for the bus: head, or drop? 
 //#define UCBUS_IS_HEAD
+// *genuine* max is 63 ! 
+#define UCBUS_MAX_DROPS 32
 #define UCBUS_IS_DROP
 // and D21 or D51?
 #define UCBUS_IS_D51
 //#define UCBUS_IS_D21 
 
+// 3, 2, or 1 MBaud: 
+#define UCBUS_BAUD 2
+
 // if you're using the 'module board' https://gitlab.cba.mit.edu/jakeread/ucbus-module
 // the first (og) revision has an SMT header, and some of the RS485 pins are varied, 
 // set this flag. otherwise, if you have thru-hole JTAG header, comment it out 

firmware/stepper-drop/src/main.cpp

@@ -158,7 +158,7 @@ void setup() {
   // ports 
   vt_usbSerial_setup();
   osapAddVertex(vt_usbSerial);    // 0
-  vt_ucBusDrop_setup();
+  vt_ucBusDrop_setup(true, 0);
   osapAddVertex(vt_ucBusDrop);    // 1
   // axis pick 
   osapAddVertex(axisPickEp);      // 2

osape-d51 @ 23064339

-Subproject commit 0ae34dd7e5bca95f22725a970c2c2eb69e55ddb2
+Subproject commit 23064339e200c3819af8bc55988b57d3eaa28a2e