\n1 (lowest) to 7 (highest)\n<\/p>\n
\r\n\r\n\t\/\/-----------------------------\r\n\t\/\/----- ENABLE INTERRUPTS -----\r\n\t\/\/-----------------------------\r\n\t\/\/INTEnableSystemSingleVectoredInt();\r\n\tINTEnableSystemMultiVectoredInt();\r\n<\/code><\/pre>\n\nInterrupt Functions
\n<\/h4>\n\nNew Style
\n<\/h5>\n\r\n\r\nvoid __ISR(_TIMER_5_VECTOR, IPL7SRS) Timer5IntHandler(void) \t\/\/(<<<<<<< IPL# must match the priority level assigned to the irq where its enabed, Use 'SRS' if config FSRSSEL is assigned to same level, or use 'SOFT' if not)\r\n<\/code><\/pre>\n\nIPLnSRS vs IPLnSOFT vs IPLnAUTO\n<\/p>\n
\nFor many PIC32 devices you can specify in the configuration-bit settings an interrupt priority level that will use a special fast shadow register set (e.g. FSRSSEL=PRIORITY_7 "SRS Select"). For these devices you need to specify which context-saving mechanism to use for each interrupt handler:\n<\/p>\n
\nSome PIC32 variants may have 8 register sets (1 standard set and 7 shadow register sets) meaning that there are enough shadow register sets for every interrupt priority level. For these you should use the IPLnSRS IPL specifier for every interrupt service routine.\n<\/p>\n
\nWhere there is only 1 shadow register set:\n<\/p>\n
\nFor interrupt service routines set to the interrupt priority level which has been assigned the shadow register set, use IPLnSRS.\n<\/p>\n
\nFor all other interrupt service routines use IPLnSOFT.\n<\/p>\n
\nUse IPLnAUTO to have the compiler generate code that determines the shadow register set assignment at runtime (slower). The compiler defaults to using IPLnAUTO when the IPL specifier is omitted from the interrupt() attribute.\n<\/p>\n
\nSRS has the shortest latency, SOFT has a longer latency due to registers saved on the stack and AUTO adds a few cycles to test if SRS or SOFT should be used.\n<\/p>\n
\nOld Style
\n<\/h5>\n\r\n\r\nvoid __ISR(_TIMER_5_VECTOR, ipl7) Timer5IntHandler(void) \t\/\/(ipl# must match the priority level assigned to the irq where its enabed)\r\n<\/code><\/pre>\n\nThis will generate a depreciated warning like "warning: Interrupt priority IPL7 is deprecated. Specify as 'IPL7{AUTO|SOFT|SRS}' instead."\n<\/p>\n
\n <\/p>\n","protected":false},"excerpt":{"rendered":"
Interrupt Priority Level 1 (lowest) to 7 (highest) Multi Vector \/ Single Vector Interrupts \/\/—————————– \/\/—– ENABLE INTERRUPTS —– \/\/—————————– \/\/INTEnableSystemSingleVectoredInt(); INTEnableSystemMultiVectoredInt(); Interrupt Functions New Style void __ISR(_TIMER_5_VECTOR, IPL7SRS) Timer5IntHandler(void) \/\/(<<<<<<< IPL# must match the priority level assigned to the irq where its enabed, Use 'SRS' if config FSRSSEL is assigned to same level, or use […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[59],"tags":[],"class_list":["post-616","post","type-post","status-publish","format-standard","hentry","category-interrupts-xc32"],"_links":{"self":[{"href":"https:\/\/ibex.tech\/embedded\/wp-json\/wp\/v2\/posts\/616","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ibex.tech\/embedded\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/ibex.tech\/embedded\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/ibex.tech\/embedded\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/ibex.tech\/embedded\/wp-json\/wp\/v2\/comments?post=616"}],"version-history":[{"count":6,"href":"https:\/\/ibex.tech\/embedded\/wp-json\/wp\/v2\/posts\/616\/revisions"}],"predecessor-version":[{"id":648,"href":"https:\/\/ibex.tech\/embedded\/wp-json\/wp\/v2\/posts\/616\/revisions\/648"}],"wp:attachment":[{"href":"https:\/\/ibex.tech\/embedded\/wp-json\/wp\/v2\/media?parent=616"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ibex.tech\/embedded\/wp-json\/wp\/v2\/categories?post=616"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ibex.tech\/embedded\/wp-json\/wp\/v2\/tags?post=616"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}