I'm sorry!


Much experience in hardware, but not so much in software.


To be honestly, I'm a physicist. I never learned hardware or software in school or elsewhere, I tought it myself.


No, not to "ask", but to read and to learn.


Rodrigo, the problem with newbies here, and why they seem not to get adequate help, is, that they come here and tell with two or three lines that they have a problem. We, who we want to help, suffer then from a total lack of urgently needed details. Then, after several askings for more details, they come (if at all) with a chaos of "code", uncommented, unstructured and totally confusing. They, themselves cannot explain, why they have "coded" this or that, or what the "coding idea" behind was.

A newbie must learn to work in little steps. Make a very little step, confirm that everything is working, then, and only then, make the next small step.
This means, that the project must not be solved in total, by ONE circuit and ONE software, but that you desgin simple circuit snippets and check them by the help of simple but exactly the point hitting code snippets. For instance, to check, whether a PC accepts the data transmitted by the UART of your micro. Only, if this little check was successful, make the next step, for instance trying to address the LCD by your micro. Again with a tiny circuit snippet and a simple code snippet. Just to check the timing, or what else seems to be problematic.

Then, if all these modules are working, add them to the total project. Again, step by step.

When following this methode for a few times, you will see how powerful this way of developing is. You will become a master in designing circuit and code snippets, in finding mistakes and failures and you will automatically begin to think in terms of modules, hierarchies and priorities, which is so essential when solving much more sophisticated applications.

Now, you will say: "But that will consume a huge amount of time!"
Yes, but still an universe less than when trying to do the whole project at once and then having to fight at many many fronts, because nothing works. Beginning to despair will be the consequence then and urgently begging for "working code"...

An old chinese wisdom says: "If you are in a hurry, move slowly!"

Kai