LCD setup

[nomad]

You need the TRISA line. each bit determines input or output. so if you want ra4 as an output you need to change trisa to %11101111 also need cmcon=7 to disable the comparators. I dont have a data sheet to see what you need for adcon1 but the analog is for input only, and doesn't apply to a pin set to output. (as far as i understand) i think the cmcon and trisa lines should do the trick.

[nomad]

check this thread http://www.picbasic.co.uk/forum/show...t=16f628+ansel

[mister_e]

you may have some problem with 16F628 and ADCON1... as it don't have any a/d converter.

While it's always a good programming practice to set TRIS register, LCDOUT do it for you.

Faulty i/o
No contrast pot on LCD Vo line
R/W pin not tied to GND
no pull-up (~10K) on OpenCollector output
floating MCLR input if used, or not disabled in code
same thing for LVP mode,
faulty/missing connections
unsufficient LCD startup time

are some things to check.

[nomad]

Didn't know that about lcdout. Learn something new each day lol. That explains why i couldn't remember the settings for adcon1. Thanks MisterE.

[ruijc]

Thank you all for the help.

I started again from scratch and did some experiments moving the RS and E lines arround and all worked fine.
Now i have to sucessfully move the data bus to Portb.

I did not have the time yet to do so, but i will keep this thread updated.

In other hand, i've just realised that i will not able to finish this project because the 16F628 does not have the A/D converter i need to measure temp. - seen the analog input and assumed that it also had A/D :s ( Thanks Mister_E ).

Have to go and buy some 16F88s.

.