Hi, My experiences are similar.
I fought long with a misbehavior of a piece of harmless USART1 routines till I found out (the hard and miserable way =) that the receive register bit became initially set with no reason. So all the external spi traffic went out of sync because of this. I still don't know for sure why this happened but I suspect it is related somehow to the other flags and their activity in the IE1 register, as this did not happen in my other pieces of code that employed (the same) USART1 routine. Hence, for reliable operation I have since then had the (USART1 receive) register read during the initialization of the said peripheral. I recommend this to others too. Oh, and the module was/is F149. Regards, Matti ====================================================================== Matti Ruusunen IST International Security Technology Oy Hardware Designer Melkonkatu 16A FIN-00210 Helsinki Finland tel. +358-50-4341321 fax. +358-9-68723681 matti.ruusu...@istsec.fi http://www.istsec.fi ======================================================================
