topic Change IRQ Handler during runtime in LPC Microcontrollers https://community.nxp.com/t5/LPC-Microcontrollers/Change-IRQ-Handler-during-runtime/m-p/522444#M5080 <HTML><HEAD></HEAD><BODY><STRONG>Content originally posted in LPCWare by hansLPC on Mon Feb 10 02:56:20 MST 2014</STRONG><BR /><SPAN>Hi,</SPAN><BR /><BR /><SPAN>I have a highly optimized IRQ handler for my PWM Interrupts (PWM1_IRQHandler).</SPAN><BR /><BR /><SPAN>For different application modes I want to use another IRQ handler because a switch or ifelse statement is wasting too much time. So now my question: is it possible to overwrite the IRQ functionPtr or whatever to call different IRQ routines? Are they determined by compile-time? Is this memory region accessible during runtime?</SPAN><BR /><BR /><SPAN>Regards,</SPAN><BR /><SPAN>Hans</SPAN></BODY></HTML> Wed, 15 Jun 2016 17:54:33 GMT lpcware 2016-06-15T17:54:33Z Change IRQ Handler during runtime https://community.nxp.com/t5/LPC-Microcontrollers/Change-IRQ-Handler-during-runtime/m-p/522444#M5080 <HTML><HEAD></HEAD><BODY><STRONG>Content originally posted in LPCWare by hansLPC on Mon Feb 10 02:56:20 MST 2014</STRONG><BR /><SPAN>Hi,</SPAN><BR /><BR /><SPAN>I have a highly optimized IRQ handler for my PWM Interrupts (PWM1_IRQHandler).</SPAN><BR /><BR /><SPAN>For different application modes I want to use another IRQ handler because a switch or ifelse statement is wasting too much time. So now my question: is it possible to overwrite the IRQ functionPtr or whatever to call different IRQ routines? Are they determined by compile-time? Is this memory region accessible during runtime?</SPAN><BR /><BR /><SPAN>Regards,</SPAN><BR /><SPAN>Hans</SPAN></BODY></HTML> Wed, 15 Jun 2016 17:54:33 GMT https://community.nxp.com/t5/LPC-Microcontrollers/Change-IRQ-Handler-during-runtime/m-p/522444#M5080 lpcware 2016-06-15T17:54:33Z Re: Change IRQ Handler during runtime https://community.nxp.com/t5/LPC-Microcontrollers/Change-IRQ-Handler-during-runtime/m-p/522445#M5081 <HTML><HEAD></HEAD><BODY><STRONG>Content originally posted in LPCWare by LabRat on Mon Feb 10 03:19:13 MST 2014</STRONG><BR /><SPAN>What about remapping your vector table to RAM and then change PWM interrupt adress ?</SPAN><BR /><BR /><SPAN><SPAN>See: </SPAN><A class="jive-link-external-small" href="https://community.nxp.com/external-link.jspa?url=http%3A%2F%2Fwww.lpcware.com%2Fcontent%2Fforum%2Flpc1768-remap-isr-to-ram" rel="nofollow" target="_blank">http://www.lpcware.com/content/forum/lpc1768-remap-isr-to-ram</A></SPAN></BODY></HTML> Wed, 15 Jun 2016 17:54:34 GMT https://community.nxp.com/t5/LPC-Microcontrollers/Change-IRQ-Handler-during-runtime/m-p/522445#M5081 lpcware 2016-06-15T17:54:34Z