Using UART1 in BV509

Hi,

I am traying to use UART1 in BV509 for connecting a GPS module in the ESP8266 connector. I've attached the TX pin to the RX of the GPS and the RX to TX, but I am not able to get the GPS messages. I know that the GPS is working, as the led showing that it is attached is flashing. Rookie 3 is installed.The code I am using is:

function gps()

dim power, nchar, nmea$, car

// rx,tx
pps_in(*U1RX(),*RPF2()) // RX pin set to U1RX
pps_out(*RPF3(),*U1TXs()) // TX pin set to U1TX (NOTE the U1TXs)

io_pinRole(*RF3(),IN,WOFF) // set up RF3 (UART RX) for input
io_pinRole(*RF2(),OUT,WOFF) // set up RF2 (UART TX) for output

io_pinRole(*RE6(),OUT,WOFF) // set up RE6 (Power on) for output
io_pinSet(*RE6(),1) // the ESP 8266 power is on

power = io_pinGet(*RE6()) // realmente tras el reset RE6 está ON


if power = 1
print "GPS encendido"
else
print "GPS apagado"
endif

comclose(1) // cierra UART 1, para limpiar.

comopen(1,9600,128) // UART,Baud,Buffer_size
// COM 1, 9600 by default in GPS

while comkey?(2) = 0
nchar =comkey?(1)
if nchar >0
print "chars: ", nchar
print "/n"
nchar=comread(1,nmea$,80,0)
print nmea$
print "/n"
nchar =0
endif
wend

comclose(1)

endf


Could you help me to see why it is not working?

Br

eHc

The BV509 is already setup to use UART1 for the ESP8266 on specific pins for that socket. If you go to the link:

[www.bypic.byvac.com]

and open the Rookie_2.zip file in there there is a file called ESP8266_509.bas. This has the code for connecting to UART1 using the ESP8266 connector. See the function wf_start(). In fact there are some functions in there that may be very useful for GPS

By the way the pins are TX RF3, RX RF2

Jim

After implementing the code you pointed out, I realized that I had a wiring mistake, and once corrected it is working now.

Thanks for your help.

eHc