CommonPIC32_VGA

Changeset

5:2f9cae211191
2022-02-22 Paul Boddie raw files shortlog changelog graph Added some more notes about the first version of the board.
README.txt (file)
     1.1 --- a/README.txt	Tue Feb 22 00:31:29 2022 +0100
     1.2 +++ b/README.txt	Tue Feb 22 15:37:55 2022 +0100
     1.3 @@ -63,6 +63,29 @@
     1.4  permit switching between the connectors, allowing video output to be switched
     1.5  between a panel and the VGA connector, for example.
     1.6  
     1.7 +One limitation that the board has when used with an Arduino Duemilanove board
     1.8 +for programming is that it is not designed to be stacked on such a board. This
     1.9 +could have been useful when putting such a combination of boards in a case
    1.10 +designed for stacks of Arduino boards and shields, since there is otherwise
    1.11 +not enough space between the female headers of the Arduino board and the
    1.12 +underside of this board to be able to use jumper wires, as had been intended.
    1.13 +However, breadboard jumper cables can be used to route the signals between the
    1.14 +boards.
    1.15 +
    1.16 +Another potential change could involve the positioning of the VGA output
    1.17 +connectors, these having been situated at the opposite end of the board to
    1.18 +where an Arduino would have its USB and power connectors. It might have been
    1.19 +more sensible to have put the VGA connectors, these being external, on the
    1.20 +same end as the Arduino's own external connectors, with the programming pins
    1.21 +either being routed via stackable header connections or through connectors on
    1.22 +the end of the board that would be internal within any case or housing.
    1.23 +
    1.24 +Despite the above Arduino-related suggestions, this board was not designed as
    1.25 +an Arduino shield, needing rather more flexibility in terms of providing
    1.26 +connections of specific kinds, and although the intention was to make use of
    1.27 +Arduino-compatible cases or housings, it was never envisaged that any
    1.28 +particular case would be completely compatible with this board.
    1.29 +
    1.30  Design Rules and Production
    1.31  ===========================
    1.32