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-rw-r--r--hw1/README21
1 files changed, 14 insertions, 7 deletions
diff --git a/hw1/README b/hw1/README
index 94807c1..9ac2b15 100644
--- a/hw1/README
+++ b/hw1/README
@@ -7,10 +7,17 @@ cheap FX2based logic analysers, allowing automatic tests to be written
that use sigrok to check that the signals on the wire match expectations.
-TODO:
-Check i2c conns to target board! (drop the unused one!)
-VCC routing (and recommended mic5504 routing)
-ground pours in kicad
-reshuffle LA conn
-gerber generation?
-
+Notes on assembly hw1-a:
+* 16Mhz crystal, 15pf load caps, and 3k7 i2c pullups
+ (why don't I have 4k7 0603 resistors lying around? who knows!)
+* A power LED wouldn't hurt.
+* Adding a red/green user led wouldn't hurt for test pass/fail, even though
+ it's meant to be autotest
+* maybe a fet to turn on/off the i2c pull ups programatically?
+ (maybe just a single jumper? is there really any need for individual control
+ of the pullups?)
+* move stlink connector 90° or just down and tuck it in, so we can pull the
+ edge in. It overlaps the buttons on the nucleos, and requires longer
+ pins than necessary otherwise.
+* Add some ground pads for test points, just in general. Test points good,
+ more test points better.