log notes for new stepper drivers

2021-06_fab-step-ucbus/eagle.epf

@@ -69,17 +69,17 @@ Layer=21
 Package="8-MSOP-FAB"
 
 [Win_2]
-Type="Board Editor"
-Number=2
-File="fab-step-ucbus.brd"
-View="19.5424 23.1675 28.8057 33.3494"
-WireWidths=" 0.1016 0.127 0.2 1.016 1.27 2.54 0.15 0.0762 0.4064 0.254 0.508 0.6096 0.8128 0.1524 0.2032 0.3048"
+Type="Schematic Editor"
+Number=1
+File="fab-step-ucbus.sch"
+View="157.826 -12.2135 381.494 107.775"
+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"
 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=" 0.25 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 0.8382"
+ViaDrills=" 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"
 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"
-TextSizes=" 0.254 0.3048 0.4064 0.6096 1.016 1.27 1.4224 1.6764 1.9304 2.1844 2.54 3.81 5.08 6.4516 1.778 0.8128"
+TextSizes=" 0.254 0.3048 0.4064 0.6096 0.8128 1.016 1.27 1.4224 1.6764 1.9304 2.1844 2.54 3.81 5.08 6.4516 1.778"
 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"
 MiterRadiuss=" 0.254 0.3175 0.635 1.27 2.54 1 2 2.5 5 7.5 10 0"
@@ -88,14 +88,14 @@ 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=1
-WireBendSet=0
+WireBend=0
+WireBendSet=31
 WireCap=1
 MiterStyle=1
 PadShape=0
 ViaShape=1
 PolygonPour=0
-PolygonRank=2
+PolygonRank=0
 PolygonThermals=1
 PolygonOrphans=0
 TextRatio=8
@@ -110,20 +110,22 @@ SwapLevel=0
 ArcDirection=0
 AddLevel=2
 PadsSameType=0
-Layer=1
+Layer=91
+Views=" 1: 157.826 -12.2135 381.494 107.775"
+Sheet="1"
 
 [Win_3]
-Type="Schematic Editor"
-Number=1
-File="fab-step-ucbus.sch"
-View="157.826 -12.2135 381.494 107.775"
-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"
+Type="Board Editor"
+Number=2
+File="fab-step-ucbus.brd"
+View="7.87615 -6.46716 55.6728 46.0692"
+WireWidths=" 0.1016 0.127 0.2 1.016 1.27 2.54 0.15 0.0762 0.4064 0.254 0.508 0.6096 0.8128 0.1524 0.2032 0.3048"
 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"
 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 0.3 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=" 0.25 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 0.8382"
 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"
-TextSizes=" 0.254 0.3048 0.4064 0.6096 0.8128 1.016 1.27 1.4224 1.6764 1.9304 2.1844 2.54 3.81 5.08 6.4516 1.778"
+TextSizes=" 0.254 0.3048 0.4064 0.6096 1.016 1.27 1.4224 1.6764 1.9304 2.1844 2.54 3.81 5.08 6.4516 1.778 0.8128"
 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"
 MiterRadiuss=" 0.254 0.3175 0.635 1.27 2.54 1 2 2.5 5 7.5 10 0"
@@ -132,14 +134,14 @@ 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=0
-WireBendSet=31
+WireBend=1
+WireBendSet=0
 WireCap=1
 MiterStyle=1
 PadShape=0
 ViaShape=1
 PolygonPour=0
-PolygonRank=0
+PolygonRank=2
 PolygonThermals=1
 PolygonOrphans=0
 TextRatio=8
@@ -154,9 +156,7 @@ SwapLevel=0
 ArcDirection=0
 AddLevel=2
 PadsSameType=0
-Layer=91
-Views=" 1: 157.826 -12.2135 381.494 107.775"
-Sheet="1"
+Layer=1
 
 [Win_4]
 Type="Control Panel"

firmware/fab-step/src/main.cpp

@@ -56,6 +56,8 @@ void setup() {
   //osapAddVertex(spiBusDummy);     // 1 
   //osapAddVertex(axisPickEp);      // 2 
   //osapAddVertex(axisInvertEp);    // 3 
+  // pinMode();
+  PORT->Group[0].DIRSET.reg = (uint32_t)(1 << 14);
 }
 
 // -------------------------------------------------------- LOOP 
@@ -64,6 +66,9 @@ void setup() {
 unsigned long last_tick = 0;
 
 void loop() {
+  //  digitalWrite();
+  PORT->Group[0].OUTSET.reg = (uint32_t)(1 << 14);
+  PORT->Group[0].OUTCLR.reg = (uint32_t)(1 << 14);
   // do osap things, 
   // osapLoop(); 
   // blink 

osape-d21 @ b47769ec

-Subproject commit 2d170f82db66136cd002a60a1d1a13c020265ce2
+Subproject commit b47769ec7b9994fb363d881929520afbf4589200

log/fab-step-log.md

@@ -35,3 +35,12 @@ Realized today that I had 5v, 24v lines on the plug optimistically configured fo
 
 ![route](2021-06-19_routed.png)
 ![schem](2021-06-19_schem.png)
+
+## 2021 10 19 
+
+Thinking about updating this w/ easier / simpler stepper hardware, have this list of new chips to try:
+
+- 296-DRV8434RGERCT-ND (stepper chip)
+- DRV8436RGERCT
+- 296-40076-1-ND (h-bridge w/ current sense output)
+- MAX14871EUE+CT-ND (A4950 a-la-moderne)  
\ No newline at end of file