Post by thread:freq out using 16c58a

Hi, Is my understanding correct? Or am I unable to output a frequency to a prot bit, based on an interger divisor of clock/ 4 from the timer by just setting up some registers? I've been looking at this for a day or so, and it seems that if I want to have a frequency output from the timer than there is no way to program a port for "rollover" of the counter. Hopefully I'm missing something here, but maybe not. Help? Thanks Brad Mitchell

Brad Mitchell <spam_OUTPICLISTTakeThisOuTMITVMA.MIT.EDU> wrote: > Is my understanding correct? Or am I unable to > output a frequency to a prot bit, based on an interger > divisor of clock/4 from the timer by just setting up some > registers? Brad: Sorry... You can't do that with any of the 16C5x parts. If you use a 16C58, your software will have to manually poll the RTCC/TMR0 register and toggle the port pin whenever it sees a rollover. -Andy Andrew Warren - .....fastfwdKILLspam@spam@ix.netcom.com Fast Forward Engineering, Vista, California http://www.geocities.com/SiliconValley/2499