i.MX6 Pinmuxing

Discussion in 'General Programming Discussion' started by Claus, Dec 1, 2013.

  1. Claus

    Claus New Member

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    Hello,
    I want connect a gps-device on uart3. How descript in the Udoo-manual I make changes in board-mx6qd_seco__UDOO.h and recompile the kernel. But, I see nothing on /dev/ttymxc3.
    Is uart3 the device /dev/ttymxc3 ?
    regards
    Claus
     
    Claus, Dec 1, 2013
    #1
  2. delba

    delba Administrator Staff Member

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    No the /dev/ttymxc3 is the uart4 and is used as internal serial between the 2 processors.

    To use the uart3 you need to edit inside the board-mx6qd_seco__UDOO.h file the EIM_D25 pad (pin47) and the EIM_D24 pad (pin 53).

    Then you need to reach this file arch/arm/mach-mx6/board-mx6_seco_UDOO.c and add to the line 233: imx6q_add_imx_uart(2, NULL);

    We didn't verify it yet but this should be enough.
     
    delba, Dec 4, 2013
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