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nowFlash is unable to connect to target - Error199

nowFlash is unable to connect to target - Error199

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Dominik Fuchs
Posted by
on Apr 18 2012 08:35 AM
Prodigy175 points

Hello

I am currently evaluating the RM48 USB MCU Development Kit and get an error when trying to flash the device.

I use nowFlash and get the following Error:

Error 199 - Unable to connect to target on port address 0x000.

I was able to connect to the target until I changed the Clock Soure in HalCoGen from PLL1 to LPO_High and flashed the new build to the USB Kit.

When I was using the PLL1 option, the device worked with a core frequency of 160 MHz.

Thanks in advance,

Fuchs Dominik

HALCoGen nowFlash RM4x Hercules RM48x
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  • Zhaohong Zhang
    Posted by
    on Apr 18 2012 11:45 AM
    Verified Answer
    Verified by
    Genius9275 points

    Dominik,

    After power-on-reset, CPU start executing from address 0x0. When you try to connect nowFlash, your application already has set up something so that nowFlash cannot work properly. You can try the following method.

    (1) Hold nRST button on the board.

    (2) Start nowFlash

    (3) Release nRST button once you see the "connect " sign in the nowFlash status window.

    Please let me know if the above works for you.

    Thanks and regards,

    Zhaohong

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  • Dominik Fuchs
    Posted by
    on Apr 19 2012 00:50 AM
    Prodigy175 points

    Hi Zhaohong,

    Thanks for your help, it works now.

    Regards

    Fuchs

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