[Tinyos-help] controlling USB TX LED for tmote sky mote

Michael Schippling schip at santafe.edu
Mon Jun 8 09:17:25 PDT 2009


I think those LEDs are attached directly to the USB transceiver and
are not under direct processor control. TX may only blink when a real
USB message is being sent. I don't know if just putting bytes to the
port is sufficient.
MS


Jun Han wrote:
> Hi, 
> 
> I am currently unsure of how to control the USB TX LED for Tmote Sky.
> 
> This is the red LED that is located on the left side of the USB port in 
> the tmote sky. This LED blinks whenever there is a TX in the USART0, 
> when set to UART mode.
> 
> I am calling a HPLUART.put() function, which enables the USB TX. 
> 
> Thanks,
> 
> 
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