topic Oscillador or crystal in 8-bit Microcontrollers https://community.nxp.com/t5/8-bit-Microcontrollers/Oscillador-or-crystal/m-p/123884#M48 <HTML><HEAD></HEAD><BODY><DIV><SPAN style="color: #ff0000;">This message contains an entire topic ported from a separate forum. The original message and all replies are in this single message. We have seeded this new forum with selected information that we expect will be of value to you as you search for answers to your questions.</SPAN></DIV><DIV>&nbsp;</DIV><DIV><SPAN class="postdetails"><STRONG>Posted: Tue Sep 06, 2005 10:00 am</STRONG><SPAN class="gen">&nbsp;</SPAN>&nbsp;&nbsp;&nbsp;</SPAN></DIV><DIV><SPAN class="postdetails"></SPAN>&nbsp;</DIV><DIV><SPAN class="postdetails"><SPAN class="postbody">Can use a 9.8304 MHz crystal in a 68HC908AP64 MCU board in user and monitor mode or is necesary a 9.8304 oscillator in monitor mode.<BR /><BR /> Thanks. (and sorry for my english)</SPAN></SPAN></DIV><DIV><SPAN class="postdetails"><SPAN class="postbody"></SPAN></SPAN>&nbsp;</DIV><DIV><SPAN class="postdetails"><SPAN class="postbody"><SPAN class="postdetails"><STRONG>Posted: Tue Sep 06, 2005 1:49 pm</STRONG><SPAN class="gen">&nbsp;</SPAN>&nbsp;&nbsp;&nbsp;</SPAN></SPAN></SPAN></DIV><DIV><SPAN class="postdetails"><SPAN class="postbody"><SPAN class="postdetails"></SPAN></SPAN></SPAN>&nbsp;</DIV><DIV><SPAN class="postdetails"><SPAN class="postbody"><SPAN class="postdetails"><SPAN class="postbody">Hi,<BR /><BR /> You should use a 32KHz crystal during normal execution.<BR /> It's because of the design of the Oscillator module. It could work with a higher frequency but you will <SPAN style="FONT-WEIGHT: bold;">NOT</SPAN> have any guarantee.<BR /><BR /> I guess communication would have been difficult at such baudrate, that's why you need a higher crystal for MON08 (monitor mode) access.<BR /><BR /> Cheers,<BR /></SPAN></SPAN></SPAN></SPAN></DIV></BODY></HTML> Wed, 25 Jan 2006 00:18:44 GMT RChapman 2006-01-25T00:18:44Z Oscillador or crystal https://community.nxp.com/t5/8-bit-Microcontrollers/Oscillador-or-crystal/m-p/123884#M48 <HTML><HEAD></HEAD><BODY><DIV><SPAN style="color: #ff0000;">This message contains an entire topic ported from a separate forum. The original message and all replies are in this single message. We have seeded this new forum with selected information that we expect will be of value to you as you search for answers to your questions.</SPAN></DIV><DIV>&nbsp;</DIV><DIV><SPAN class="postdetails"><STRONG>Posted: Tue Sep 06, 2005 10:00 am</STRONG><SPAN class="gen">&nbsp;</SPAN>&nbsp;&nbsp;&nbsp;</SPAN></DIV><DIV><SPAN class="postdetails"></SPAN>&nbsp;</DIV><DIV><SPAN class="postdetails"><SPAN class="postbody">Can use a 9.8304 MHz crystal in a 68HC908AP64 MCU board in user and monitor mode or is necesary a 9.8304 oscillator in monitor mode.<BR /><BR /> Thanks. (and sorry for my english)</SPAN></SPAN></DIV><DIV><SPAN class="postdetails"><SPAN class="postbody"></SPAN></SPAN>&nbsp;</DIV><DIV><SPAN class="postdetails"><SPAN class="postbody"><SPAN class="postdetails"><STRONG>Posted: Tue Sep 06, 2005 1:49 pm</STRONG><SPAN class="gen">&nbsp;</SPAN>&nbsp;&nbsp;&nbsp;</SPAN></SPAN></SPAN></DIV><DIV><SPAN class="postdetails"><SPAN class="postbody"><SPAN class="postdetails"></SPAN></SPAN></SPAN>&nbsp;</DIV><DIV><SPAN class="postdetails"><SPAN class="postbody"><SPAN class="postdetails"><SPAN class="postbody">Hi,<BR /><BR /> You should use a 32KHz crystal during normal execution.<BR /> It's because of the design of the Oscillator module. It could work with a higher frequency but you will <SPAN style="FONT-WEIGHT: bold;">NOT</SPAN> have any guarantee.<BR /><BR /> I guess communication would have been difficult at such baudrate, that's why you need a higher crystal for MON08 (monitor mode) access.<BR /><BR /> Cheers,<BR /></SPAN></SPAN></SPAN></SPAN></DIV></BODY></HTML> Wed, 25 Jan 2006 00:18:44 GMT https://community.nxp.com/t5/8-bit-Microcontrollers/Oscillador-or-crystal/m-p/123884#M48 RChapman 2006-01-25T00:18:44Z