sci error after restart qg8

[danijv]

Hi!

first of all, excuse me because of my bad english ..

well, i'm designing a project for QG8 which uses some modules (ADC, SCI, RTI, MTIM...). It measures two analog sensors and sends the information through SCI.

When I started to use the SCI module it was so easy, and it worked properly. Now I have a problem.

When I burn my program in the QG8, it sends the bytes properly. But if I switch off and next I switch on, it doesn't send the bytes it should. I mean..

For example, I want to send " AA 55 BB 22 CC 33 ", so when I burn the code with CW it sends ok, but when the QG8 has been restarted it sends "5A 97 ED 5F"...

Could anybody help me?

thank you !!

Message Edited by danijv on 2009-05-28 11:50 PM

[danijv · Accepted solution]

Hi!!

Finally, I solved the problem. I had no trimmed the internal clock.

In debug mode, I read the values of ICSTRM and ICSSC_FTRM. Next, my code copy this values to these registers and it works!!

Thank you very much for your help,

[danijv]

it is the internal clock, and i don't know how to trim it ....

[peg]

Hi,

I don't have time at the moment for you but if you put "trim" into the search box at the bottom of the page you will find lots of info on this.

[danijv]

Hi again !

I forgot to say that I've tried it from 300 baud to 9600.. it always happen ...

thanksssss

[peg]

Hello and welcome to the fora, danijv.

What clock source are you using?

If it is the internal clock are you trimming it properly? i.e. transfering the trim values from the non-volatile register to the working ones.