|
Using pin A5 for CE# since pins 0 and 1 conflict with serial communication. |
|
|
Renamed the source file to reflect the actual IC in use. |
|
|
Fixed the command definitions and pin usage; made changes to help debugging. |
|
|
Simplified the interfacing, dropping the multiplexer and data latch. |
|
|
Removed the output latch; introduced a multiplexer to separate the data channels. |
|
|
An initial design using four 74HC273 ICs: three for output, one for input. |
|