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Software Application Development Zynq Concepts, Tools, and Techniques on ZedBoard - Issues
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Zynq Concepts, Tools, and Techniques on ZedBoard - Issues

Former Member
Former Member over 12 years ago


Hi all,

I'm new to the Zedboard, running through the 14.3 CTT tutorial, and I've encountered two problems:

1) Section 3.1.2 - The application code does not compile without error:

../src/helloworld.c:39:6: error: conflicting types for 'print'
../../Hello_world_bsp/ps7_cortexa9_0/include/xil_printf.h:39:6: note: previous declaration of 'print' was here
make: *** [src/helloworld.o] Error 1

To compile, the following line must be removed/commented:
void print(char *str);


2) The expanded Helloworld.c example contained in Appendix A crashes when run on hardware (within the SDK). After an open is selected (pressing '1' for example), a popup Terminal Error message appears :"IO Error! Bad file descriptor in nativeDrain"

##### Application Starts #####

SELECT the Operation from the Below Menu
###################### Menu Starts ########################
Press '1' to use NORMAL GPIO as an input (BTNU switch)
Press '2' to use EMIO as an input (BTNR switch)
Press any other key to Exit
##################### Menu Ends #########################
Selection : 1
Press Switch 'BTNU' push button on
Bad file descriptor in nativeDrain
board

I haven't found a resolution yet to the nativeDrain error. Has anyone encountered similar issues? I've tried this on two PC's (Win7), same result.

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  • Former Member
    0 Former Member over 11 years ago

    Could you be specific about the problem you are encountering? And please detail the tutorial and version you are using as well and the version of the Xilinx tools. Is this wth ZedBoard or a MicroZed board?

     

    -Gary

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  • Former Member
    0 Former Member over 11 years ago

    Could you be specific about the problem you are encountering? And please detail the tutorial and version you are using as well and the version of the Xilinx tools. Is this wth ZedBoard or a MicroZed board?

     

    -Gary

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