Hello, Could somebody help me with a parallel data problem ?
I'm building a robot with two quadrature encoders for feed back control with an Arduino DUE. I need to read 8 bit parallel data values coming from the two Quadrature Decoder/ Counter Interface IC HCTL 2022 (from one of the two at a time of course). I've chosen the Arduino DUE's processor's pins PC12 to PC19 for my data bits D0 to D7. I can manage for selecting the register I want to read in one of the two ICs but could you give me the few lines of code needed for setting up my 8 bits data bus in the setup() and in the loop() for reading the values with the fastest method and form a byte from the reading. I don't need to send values on the 8 bit data bus,I only need to read incoming values.
Thanks a lot for helping because I don't understand the code given in the previous posts.