2015-11-30 12:53:03 +00:00
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\section{Bootloader}
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For the first released hardware sample of moray ruby 2 for the WCA side the
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bootloader v1.0.0.0 has to be used. The release is available
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\href{http://dabsvn01.internal.novero.com/svn/0\_31X\_P0513\_moray\_ruby2/trunk/development/software/releases/wca/bootloader/20151127\_1.0.0.0/wca\_bootloader\_R262144.elf.p.S}{here}.\\
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The flash procedure has changed slightly. Because we don't have any longer
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the $TEL\_ON$ signal now the bootloader stays in bootloader mode for $t=2s$
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after switching on WCA. Within that period the bootloader accepts the
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connect request of the pc-side flash tool. If that period expires without
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receiving the connect request the bootloader will start the WCA application.
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\section{Hardware modification}
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To connect the WCA's Debug interface you have to populate 2 wires (Rx, Tx)
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between WCA's Debug interface and RS232 level shifter.\\
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On WCA side the $UART\_RX$ has to be connected to free pad of resistor
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$R35$. $UART_\_TX$ has to be connected to free pad of resistor $R21$. For details see figure\ref{fig:photo} and \ref{fig:schematic}.
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\begin{figure}[htb]
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\includegraphics[scale=0.16, angle=90]{IMG_20151130_095112.eps}
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\caption{Assembled WCA Debug Interface}
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\label{fig:photo}
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\end{figure}
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\begin{figure}[htb]
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\includegraphics[scale=0.7,angle=270]{populate.eps}
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\caption{Schematic populating details}
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\label{fig:schematic}
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\end{figure}
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