ColdFire/68K Microcontrollers and Processors中的主题 Proper EOI sequence for 5213 IRQs https://community.nxp.com/t5/ColdFire-68K-Microcontrollers/Proper-EOI-sequence-for-5213-IRQs/m-p/606522#M12975 <HTML><HEAD></HEAD><BODY><P>Hi,</P><P>I've inherited an old project and adding ISR routines to IRQ1-IRQ7 pins of the 5213.&nbsp; Pretty sure I have the EPORT configured properly since I do enter the ISR but can only enter once. I'm running on an old freescale Evaluation board. (the one with 3 pushbuttons connected to IRQ1, IRQ2 and IRQ3).&nbsp; Old freescale app notes refer to EPORTSoftwareDemo.zip which contains source for ISR examples but that file is no longer around.</P><P style="min-height: 8pt; padding: 0px;">&nbsp;</P><P>Any help explaining the proper EOI sequence will be appreciated</P><P style="min-height: 8pt; padding: 0px;">&nbsp;</P><P>Thanks</P></BODY></HTML> Tue, 13 Dec 2016 19:16:18 GMT philroth 2016-12-13T19:16:18Z Proper EOI sequence for 5213 IRQs https://community.nxp.com/t5/ColdFire-68K-Microcontrollers/Proper-EOI-sequence-for-5213-IRQs/m-p/606522#M12975 <HTML><HEAD></HEAD><BODY><P>Hi,</P><P>I've inherited an old project and adding ISR routines to IRQ1-IRQ7 pins of the 5213.&nbsp; Pretty sure I have the EPORT configured properly since I do enter the ISR but can only enter once. I'm running on an old freescale Evaluation board. (the one with 3 pushbuttons connected to IRQ1, IRQ2 and IRQ3).&nbsp; Old freescale app notes refer to EPORTSoftwareDemo.zip which contains source for ISR examples but that file is no longer around.</P><P style="min-height: 8pt; padding: 0px;">&nbsp;</P><P>Any help explaining the proper EOI sequence will be appreciated</P><P style="min-height: 8pt; padding: 0px;">&nbsp;</P><P>Thanks</P></BODY></HTML> Tue, 13 Dec 2016 19:16:18 GMT https://community.nxp.com/t5/ColdFire-68K-Microcontrollers/Proper-EOI-sequence-for-5213-IRQs/m-p/606522#M12975 philroth 2016-12-13T19:16:18Z Re: Proper EOI sequence for 5213 IRQs https://community.nxp.com/t5/ColdFire-68K-Microcontrollers/Proper-EOI-sequence-for-5213-IRQs/m-p/606523#M12976 <HTML><HEAD></HEAD><BODY><P>I just realized there was low level code already setting up the stack frame before my function so all I needed was a void function(void) call, terminating on an RTS rather than RTE.&nbsp; So I'm good to go now.</P></BODY></HTML> Wed, 14 Dec 2016 13:15:46 GMT https://community.nxp.com/t5/ColdFire-68K-Microcontrollers/Proper-EOI-sequence-for-5213-IRQs/m-p/606523#M12976 philroth 2016-12-14T13:15:46Z