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TI Home » TI E2E Community » Support Forums » Microcontrollers » Stellaris® ARM® Microcontrollers » Stellaris® ARM® LM3S Microcontrollers Forum » I can't change the baud rate on UART2 on an LM3S5739
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I can't change the baud rate on UART2 on an LM3S5739

I can't change the baud rate on UART2 on an LM3S5739

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Dave Estlick
Posted by Dave Estlick
on Oct 19 2011 23:38 PM
Prodigy80 points

We have a custom board based on the LMS3748 EVB. I am using the latest CCS tools.

I have been using UART2 for a while as a UARTprintf port for a while with no issues. I have a Modbus device that only runs at 9600 that I need to connect to. No matter what baud rate I set it is always 115200, according to my scope..

When I check the register view in the debugger, I can't find UART2 in the list?

 

Any help out there.

 

Dave

 

CCS LM3S3748 Debugger
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  • Andy Neil
    Posted by Andy Neil
    on Nov 06 2011 01:11 AM
    Guru32055 points

    Dave Estlick
    No matter what baud rate I set it is always 115200

    How are you attempting to change the baud rate?

     

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  • BrandonAzbell
    Posted by BrandonAzbell
    on Nov 06 2011 01:32 AM
    Guru55165 points

    The subject indicates a different device.  If you would, please confirm the device you are targeting.

    Have you based your application off of an example application in StellarisWare?  If so, which one?

    Brandon

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