Re: [Paparazzi-devel] YAPA v2: Resistor Removal for GPS/RS232

[Simon Wilks]

Hi Christophe,

Just out of interest: attempting to use only the GPS header will not work while R1 is in place or will it just not work so well/reliably? I did manage to upload a new bootloader over the GPS header while R1 was in place so it does seem to function. Haven't tried it with a GPS yet.

Thanks,

Simon

On Tue, Nov 22, 2011 at 7:35 PM, Christophe De Wagter <address@hidden> wrote:

Only one option (either 3.3V on gps or rs232 +/-9V on xsens header) can be used at the time. Both are connected to uart0 of the LPC. 

-Christophe 

On Tue, Nov 22, 2011 at 9:41 AM, Simon Wilks <address@hidden> wrote:

Hi All,

As I was getting the YAPA v2 board ready I took a look through the schematics for the YAPA v2. I found a note about configuring UART0 which says "To use 0 - 3.3V use the GPS header and do not connect the RS232 header. Remove R1. To use -9 +9V RS232 serial lines use the RS232 header and do not connect the GPS header. Place R1.". 

Does this mean that only one or the other will function if the resistor is in place or removed? In my case I will be using the GPS header, does this mean I _have_ to remove R1?

Thanks

Simon

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