https://community.nxp.com/t5/LPC-Microcontrollers/LPC844-ISP-entry-pin-timing/m-p/1707525#M53881 <P>Hi,</P><P>&nbsp;</P><P>I've a rather large capacitor connected to the ISP entry pin due to EMC issues. I'm using an LPC844.</P><P>I now have the problem that the part sometimes enters ISP mode on boot due to the capacitor not charging fast enough.</P><P>Is there any timing information available for the ISP entry pin so I can make sure that either the capacitor gets charged fast enough or that the reset signal is delay just long enough?</P><P>Please note that I want to keep the ISP entry feature, as there is also a button connected to force ISP mode. So I can't just disable it in FAIM/CRP.</P><P>&nbsp;</P><P>Thanks in advance.</P><P>&nbsp;</P><P>Kind regards,</P><P>&nbsp;</P><P>Remco Poelstra</P> Fri, 18 Aug 2023 11:55:30 GMT r_poelstra 2023-08-18T11:55:30Z https://community.nxp.com/t5/LPC-Microcontrollers/LPC844-ISP-entry-pin-timing/m-p/1707525#M53881 <P>Hi,</P><P>&nbsp;</P><P>I've a rather large capacitor connected to the ISP entry pin due to EMC issues. I'm using an LPC844.</P><P>I now have the problem that the part sometimes enters ISP mode on boot due to the capacitor not charging fast enough.</P><P>Is there any timing information available for the ISP entry pin so I can make sure that either the capacitor gets charged fast enough or that the reset signal is delay just long enough?</P><P>Please note that I want to keep the ISP entry feature, as there is also a button connected to force ISP mode. So I can't just disable it in FAIM/CRP.</P><P>&nbsp;</P><P>Thanks in advance.</P><P>&nbsp;</P><P>Kind regards,</P><P>&nbsp;</P><P>Remco Poelstra</P> Fri, 18 Aug 2023 11:55:30 GMT https://community.nxp.com/t5/LPC-Microcontrollers/LPC844-ISP-entry-pin-timing/m-p/1707525#M53881 r_poelstra 2023-08-18T11:55:30Z