Actions
Forum Thread Details
  • State Not Answered
  • Replies 5 replies
  • Subscribers 353 subscribers
  • Views 1340 views
  • Users 0 members are here
Related

GPIO/CAN Pins on ZedBoard

Former Member

Please forgive me if this question has already been answered elsewhere.  I have a ZedBoard on which I am developing, and I require integration with a CAN bus.  The ZedBoard does not appear to break out the CAN bus.

I have, however, seen several posts on this forum about operating the CAN bus on a ZedBoard.  Some people seem to have been operating CAN over GPIO pins.

Are there any exposed CAN pins?  Are there any exposed GPIO pins that can be used to implement CAN over GPIO?

Thanks

Parents
  • 0

    Take a look at the ARM System Level Control Registers section ( Appendix B.28 in the Zynq TRM, UG585 is a good place to start) of the Technical Reference Manual for Zynq. These configurations are controlled by the ARM System Registers. As an example, MIO Pin 14 I/O is selected by the MIO Pin 14 Control Register at address 0x00000738. You can read the state set by the ps7_init.c (or ps7_init.tcl for JTAG boot) but you should be very careful to understand the complete configuration state before changing register values.

     

    -Gary

Reply
  • 0

    Take a look at the ARM System Level Control Registers section ( Appendix B.28 in the Zynq TRM, UG585 is a good place to start) of the Technical Reference Manual for Zynq. These configurations are controlled by the ARM System Registers. As an example, MIO Pin 14 I/O is selected by the MIO Pin 14 Control Register at address 0x00000738. You can read the state set by the ps7_init.c (or ps7_init.tcl for JTAG boot) but you should be very careful to understand the complete configuration state before changing register values.

     

    -Gary

Children
No Data