Problems with the UART (and Timers, etc) are usually due to the HF crystal oscillator not having reached stability before being switched to in the initialisation code. It is not good enough to switch the crystal to the MCLK when the initial indication of the osc bit is that the osc is running. You need to keep checking the OSC bit for a few milliseconds before finally switching to the HF crystal. (The osc "bounces" around for a while, if a failure appears to occur, the internal detection cct switches back to the DCO!)
It sounds very much like the above problem is what you have been experiencing! Cheers Harry Home office phone (03) 9504 1957 hlemm...@optushome.com.au -----Original Message----- From: mspgcc-users-ad...@lists.sourceforge.net [mailto:mspgcc-users-ad...@lists.sourceforge.net]on Behalf Of Robert Seczkowski Sent: Sunday, November 23, 2003 8:20 AM To: mspgcc-users@lists.sourceforge.net Subject: [Mspgcc-users] MCLK & SMCLK & USART DOes anybody experieenced problems, when MCLK was higher, than SMCLK feeding USART. I receive garbage at USART probably caused by speed difference. robert ------------------------------------------------------- This SF.net email is sponsored by: SF.net Giveback Program. Does SourceForge.net help you be more productive? Does it help you create better code? SHARE THE LOVE, and help us help YOU! Click Here: http://sourceforge.net/donate/ _______________________________________________ Mspgcc-users mailing list Mspgcc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/mspgcc-users
