USART with INTERRUPTS

[crhomberg]

By the way,

I am using PBP version 2.46

Regards

Chris

[Charles Linquis]

If you are using HSERIN/HSEROUT, you can't simply use a resistor. The data is inverted compared to what it needs to be in order to communicate with any normal serial device (such as a PC).

A MAX232 (or equivalent), not only changes the voltage swings and levels, it inverts the signals as well.

[crhomberg]

Thanks to both of you,

I have finally had success but I have to admit that the problem was me all the time and I only added the MAX232 at the end but still had problems.
All that was needed was a decoupling cap on the Max232.

I have to eat humble pie today!

Thanks all,

You have kept my sanity

Regards

Chris