Picaxe and Sparkfun COM-11644

Community General Discussions
1

I am trying to get a Sparkfun COM-11644 working using a serial connection from a Picaxe 08m2.  I have tried every combination of 08m2 pins and commands and the display responds to nothing.

The connections from the 08m2 are Vcc, Gnd and c.4 as the serial pin.  I also have this post on the Picaxe forum and have gotten several replies all of which I have tried with no success and I have sent an email to Sparkfun technical support (no response yet).

The current code is here:

#picaxe 08m2

#no_data

#com 3

setfreq m8

 

symbol tx = c.4 'this is connected to RX on display

symbol baud = t9600_8

high tx

serout tx, baud, (0x7f,0x02)

pause 1000 'wait 1/2 second

serout tx, baud, (129) 'reset display to factory defaults

pause 1000 'wait 1/2 second

serout tx, baud, (118) 'clear display

pause 20 'wait 10ms

serout tx, baud, (0x7b,1) 'display '1' in left most digit

pause 2000 'wait 1 second

serout tx, baud, (0x7c,2) 'display '2' in 2nd digit from left

end

 

I am hoping there is someone here that has experiance with this display and what I am not doing or doing wrong.

 

Thanks

2

small progress

Tech support did send me the following which did act as descibed below.     I also ordered an FTDI cable to do more extensive testing according to tech support.  The cable shoul be here by midweek.

 

Try connecting RX to ground with the power off and then powering up the display. You will see alternating “____” and “----” then a rotating “0-00” display indicating that the baud rate is now at 9600. You can now release the RX pin from ground, and the display will continue to function normally.

 

Thanks for the replys.  Will post more info once more testing is done.


Pat