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| Tip |
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| Demo program (running on MicroBlaze) will work even in case the UART port is left unconnected: it is not necessary to use a USB/Uart converter or Uart port on a PC, if you are using XMD UART HDL block. |
Use the demo project with the XMD UART
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Use the demo project without the XMD UART
To use the demo project without the XMD UART, you need to use "RS232" instead of "debug_module" as standard in/out port. Otherwise the application running on the Microblaze processor freezes if you disconnect the XMD. To accomplish that you need to set up the Microblaze "Software Platform Settings".
In the dialog window select "OS and libraries" in the left window and pick "RS232" as a stdout and stdin interface. Then rebuild the software and download again the project to the FPGA.
The UART is then redirected to external pins, which are defined in the data/system.ucf file. The following snippet shows the case of the TE0300 series modules:
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