[Shaun Nelson]

Manuel,

Here’s a link to a sketch for Arduino to mDot communication.

https://github.com/mikimer/LoRa

Enjoy,
-Shaun

• This reply was modified 8 years, 2 months ago by Shaun Nelson.

[Shaun Nelson]

Hi Mike,

OpenOCD works great!

I did hit a speed bump on the configure/make step. It seemed to build fine but OpenOCD could not find the debug interface; the exact error was “specified debug interface was not found (hla).

Looking in the configure log there was an error that libusb-1.0.x was missing, which apparently is not enough to abort the make (don’t you love silent failures!). I fixed this with ‘apt-get install libusb-1.0.1-dev.

When I ran configure the 2nd time I also passed in –enable-stlink because I read on a forum that perhaps the interface support was not compiled in.

As a final step to confirm OpenOCD was properly configured, I ran ‘openocd -c interface_list’ and voila hla was in the list.

Thanks again,
-Shaun

[Shaun Nelson]

Hi Mike,

Thanks for the info. I’ll give OpenOCD a shot.

Regards,
-Shaun

[Shaun Nelson]

Hi Shankar,

On the UDK the UART used for AT commands is on the XBEE_DIN/XBEE_DOUT while in the case of the MTDOT-EVB the USBTX/USBRX pins are used.

I was able to get the AT commands working by making the following change to the mDot_AT_firmware:

#define IS_MDOT_EVB

#ifdef IS_MDOT_EVB
mts::MTSSerial serial(USBTX, USBRX, 512, 512);
#else
mts::MTSSerial serial(XBEE_DOUT, XBEE_DIN, 512, 512);
#endif

Hopefully that helps,
Shaun

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