change design to specify the non-plus version of Omega 2S module

diff --git a/Notebook b/Notebook
index 7de6753e84b13ccbef8102ef98010e1f09bedc67..339ce8df48ab5a2e6f990849e4121ef48f2126d1 100644 (file)
--- a/Notebook
+++ b/Notebook
@@ -203,4 +203,39 @@
   They call for 90R traces for the USB signals .. I've never sweated USB line
   impedance before, though, hopefully USB just works.
 
+  Note that the OM-O2S is 75% the price of the Plus version, which is $7.56
+  difference in BOM!  Plan on using the non-plus version unless we absolutely 
+  must use the bigger one.  The only differences are factors of two each in 
+  RAM and flash size.  Our application is simple enough I hope that won't be
+  an issue?
+
+- one of the things I've learned about OpenWRT is that using 'opkg upgrade'
+  doesn't work the way a Debian apt upgrade does.  Quoting an authoritative
+  source on a forum:
+
+       opkg doesn't have appropriate fail-safe checks to ensure proper 
+       compatibility at the kernel level and other dependencies. This can 
+       cause major issues with the installation, and therefore should never 
+       be used.
+
+  The implication of this is that if using OpenWRT, I need to think of it as
+  "a flash'able image" and not an upgradeable in place operating system.  I
+  can't help but have mixed feelings about that.  However, just generating
+  sysupgrade images and making sure the support for using them to upgrade the
+  in-place firmware is in my builds should work ok.
+
+2024.07.06
+- loaded a v1p2 proto board.  since only the LPC runs AltOS and it's almost
+  not relevant, I'm going to run a separate serial number series for Quanti
+  products.  This board can be sn 1, and I'll flash that into the LPC as well
+  as including it in the OpenWRT load somehow eventually.
+
+- the vertical USB connector will interfere with rectangular daughter cards,
+  which isn't good.  Fortunately, Cvilux USA also makes a right-angle version
+  that fits in the same footprint (but of course will hang way off the edge
+  of the current board design).  That seems winning.  Same price.  Added to
+  pref parts using -V and -H value suffixes to indicate which part, leaving
+  QuantiMotor design using -V for now since that's real.  q10 put in my DK 
+  cart for next order.  If the -H version doesn't have some fatal flaw, I think
+  that's what I want to use.
 

diff --git a/quantimotor.sch b/quantimotor.sch
index 9149dba10c2bb8ee2744bdf2ebedf08a3b1fade8..dc3d94ef5311efcfa0dbde24383413363355810e 100644 (file)
--- a/quantimotor.sch
+++ b/quantimotor.sch
@@ -608,7 +608,7 @@ footprint=Omega2S
 T 44500 72500 5 10 0 0 0 0 1
 device=IC
 T 51200 71900 5 10 1 1 0 6 1
-value=Omega2S+
+value=Omega2S
 }
 C 41900 68700 1 0 0 3.3V-plus.sym
 N 44100 68700 42100 68700 4