topic Re: GPT timer lower count ISR in Embedded Software and Tools Clinic https://community.nxp.com/t5/Embedded-Software-and-Tools/GPT-timer-lower-count-ISR/m-p/1019871#M63 <HTML><HEAD></HEAD><BODY><P>Hello,</P><P></P><P>May I know What did you do during the interruption process and how to get the signal of the interrupt has been generated?</P><P></P><P>Lucas Cao</P></BODY></HTML> Mon, 02 Mar 2020 02:03:08 GMT lucas_cao 2020-03-02T02:03:08Z GPT timer lower count ISR https://community.nxp.com/t5/Embedded-Software-and-Tools/GPT-timer-lower-count-ISR/m-p/1019870#M62 <HTML><HEAD></HEAD><BODY><P style="color: #4a4a4a; background-color: #ffffff; margin: 0px 0px 10px;">I am trying to generate a GPT interrupt as fast as possible, using the example code, the GPT clock source is 62.5MHz but I can only get an interrupt every 1us (not exactly as comparison count is 62 or 63 . If I specify a smaller compare value, the interrupt didn't seem to be triggering. Does anyone know if there is a limitation here?</P><P style="color: #4a4a4a; background-color: #ffffff; margin: 0px 0px 10px;"><BR />Can it be possible to use a high speed internal clock, I have tried to change to the high frequency clock without seeing a difference. I might be missing some synchronization or something while trying to enable it.</P><P style="color: #4a4a4a; background-color: #ffffff; margin: 0px 0px 10px;">I will appreciate any help,</P><P style="color: #4a4a4a; background-color: #ffffff;">Thanks,</P></BODY></HTML> Wed, 26 Feb 2020 10:34:59 GMT https://community.nxp.com/t5/Embedded-Software-and-Tools/GPT-timer-lower-count-ISR/m-p/1019870#M62 manuel_iglesias 2020-02-26T10:34:59Z Re: GPT timer lower count ISR https://community.nxp.com/t5/Embedded-Software-and-Tools/GPT-timer-lower-count-ISR/m-p/1019871#M63 <HTML><HEAD></HEAD><BODY><P>Hello,</P><P></P><P>May I know What did you do during the interruption process and how to get the signal of the interrupt has been generated?</P><P></P><P>Lucas Cao</P></BODY></HTML> Mon, 02 Mar 2020 02:03:08 GMT https://community.nxp.com/t5/Embedded-Software-and-Tools/GPT-timer-lower-count-ISR/m-p/1019871#M63 lucas_cao 2020-03-02T02:03:08Z