topic Re: 08SH8 Crystal in 8-bit Microcontrollers https://community.nxp.com/t5/8-bit-Microcontrollers/08SH8-Crystal/m-p/170501#M11378 <HTML><HEAD></HEAD><BODY><P>Dear Juls,</P><P>&nbsp;</P><P>Do you have the bias resistor (usually 10M)?</P><P>&nbsp;</P><P>See section 2.2.2 Oscillator (XOSC) of the SH8&nbsp; data sheet for oscillator component discussion.</P><P>&nbsp;</P><P>bye</P></BODY></HTML> Thu, 28 Jan 2010 07:15:11 GMT pgo 2010-01-28T07:15:11Z 08SH8 Crystal https://community.nxp.com/t5/8-bit-Microcontrollers/08SH8-Crystal/m-p/170500#M11377 <HTML><HEAD></HEAD><BODY><P>Hi</P><P>Im trying to setup my FOXS/040 crystal</P><P>a 4Mhz thu hole crystal</P><P>its connected to pin 5 and 6</P><P>with a 20pF to ground on each pin</P><P>&nbsp;</P><P>Ive use device initialisation to set external clock source with 4 mhz</P><P>&nbsp;</P><P>but the application always stop at the line waiting for crystal initialisation</P><P>at scope pin 5 is low and pin 6 is high</P><P>nothings is oscillating there <A href="http://freescale.i.lithium.com/i/smilies/16x16_smiley-frustrated.gif"><IMG alt=":smileyfrustrated:" class="emoticon emoticon-smileyfrustrated" src="http://freescale.i.lithium.com/i/smilies/16x16_smiley-frustrated.gif" title="Smiley Frustrated" /></A></P><P>&nbsp;</P><P>Any idea?</P></BODY></HTML> Thu, 28 Jan 2010 02:04:24 GMT https://community.nxp.com/t5/8-bit-Microcontrollers/08SH8-Crystal/m-p/170500#M11377 Juls 2010-01-28T02:04:24Z Re: 08SH8 Crystal https://community.nxp.com/t5/8-bit-Microcontrollers/08SH8-Crystal/m-p/170501#M11378 <HTML><HEAD></HEAD><BODY><P>Dear Juls,</P><P>&nbsp;</P><P>Do you have the bias resistor (usually 10M)?</P><P>&nbsp;</P><P>See section 2.2.2 Oscillator (XOSC) of the SH8&nbsp; data sheet for oscillator component discussion.</P><P>&nbsp;</P><P>bye</P></BODY></HTML> Thu, 28 Jan 2010 07:15:11 GMT https://community.nxp.com/t5/8-bit-Microcontrollers/08SH8-Crystal/m-p/170501#M11378 pgo 2010-01-28T07:15:11Z Re: 08SH8 Crystal https://community.nxp.com/t5/8-bit-Microcontrollers/08SH8-Crystal/m-p/170502#M11379 <HTML><HEAD></HEAD><BODY><P>Thanks for pointing me that mistake</P><P>It was the problem</P></BODY></HTML> Thu, 28 Jan 2010 23:34:09 GMT https://community.nxp.com/t5/8-bit-Microcontrollers/08SH8-Crystal/m-p/170502#M11379 Juls 2010-01-28T23:34:09Z