Update README.md

README.md

@@ -35,8 +35,31 @@ BOTTOM
 
 
 
+A few concerns here arise with v2.0 that need to be addressed by checking some
+parameters in person, which I shall do tomorrow. 
 
+Problems
+___________
+The fill for GND that goes towards the Motor GND has a choke point at the corner
+due to the headers for uploading code being right next to the power and GND sources.
+To solve this, I will move the MOSFETS towards the left and up, enough to get 
+a decent amount of fill, but before then, I want to check how the physical
+mounting of the programming female headers fit with the male headers on the board
+to solidify the perimeter of the board.
 
+The highest value that I have been able to get the ADC on the ATKBBB to read
+is 1.5V. I need to test it again with every possible combination detailed in the
+manual to see what the actual max is to consider changing the size of the 
+shunt resistor. Right now it is set to 7mOhm, which would return to the ADC
+150mV/A
+
+
+Solved Problems/Interesting Challenges
+_________________________________--
+Due to the way the PWR and GND are conected, I had to get creative with the GND
+planes. With the limited knowledge I have gathered. I limited the motor GND to the 
+TOP plane, and kept the Bottom ground plane as clear as possible for the Gate Driver
+, which required some creative routing of some components.
 
 
 
@@ -75,9 +98,13 @@ Always have a ground plane.
 Try to be as symmetric as possible
 Differential pairs routing for pairs of traces.
 
+Many many more to be copied from my notebook soon.
 
 
 
-
-
+Sources:
+MOSFET: https://www.digikey.com/product-detail/en/alpha-omega-semiconductor-inc/AON7410/785-1581-1-ND/3621507
+Gate Driver: http://www.ti.com/product/DRV8701/technicaldocuments <<< A bunch of great resources there for general pcb layout knowledge.
+General TI-DRV-style Motor Driver PCB Layout manual: http://www.ti.com/general/docs/lit/getliterature.tsp?baseLiteratureNumber=slva959&fileType=pdf
+Great Resource on ground planes - https://www.maximintegrated.com/en/app-notes/index.mvp/id/5450