How to with SerLCD 2.5 ?

[tariq_niazi]

Greetings,

This is my first time using a serial LCD with PICAXE 08M. Firstly, I bought the SerLCD 2.5 from sparkfun. Now my question is how do I play around with the baud rate to get it working? I am getting some weird character display when I use serial in and nothing is display when I use serial out ??? Also, I am using the terminal program built in the programming editor to send all commands.

- TKN

 

[nickpatts]

Hi,

from the data sheet it states default is 9600 8bits, 1 start 1 stop no parity,

from what I understand with an 8m picaxe to get 9600 baudrate you have to use the set freq m8 and SERTXD, which at defalut is at 4800 baud rate at 4mhz, so 9600 at 8mhz.

 

[BeanieBots]

I've moved your thread to the active forum where you are likely to get more responses.

Are you using the correct serial polarity? N2400/T2400

 

[tariq_niazi]

What do you mean by N2400/T2400?

 

[BeanieBots]

As in used to set the baud rate/polarity when sending serial data.
See page 144 manual 2.

You can't change the polarity of sertxd in software, so you may need to use a hardwrae inversion.

 

[andrew_qld]

Sparkfun code examples

I played around with the sparkfun LCD's a fair bit, there is some code on my web site http://www.andrew.meachen.net/LCDs.html

Its fairly old but should get you started.

Andrew