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dcb · 05-25-2009, 12:08 PM

Ok, if the typical ISR call takes 80us and it is being called every 63us, then that is probably a lot more than 1 out of 16 interrupts getting dropped.

The non critical stuff can go in the main loop (not in an interrupt) and figure out when to run based on a "system clock", and the critical stuff can be updated in the interrupt. Dont forget about volatile on globals updated in interrupts.

05-25-2009, 12:08 PM	#1402 (permalink)
dcb needs more cowbell Join Date: Feb 2008 Location: ÿ Posts: 5,038 pimp mobile - '81 suzuki gs 250 t 90 day: 96.29 mpg (US) schnitzel - '01 Volkswagen Golf TDI 90 day: 53.56 mpg (US) Thanks: 158 Thanked 269 Times in 212 Posts	Ok, if the typical ISR call takes 80us and it is being called every 63us, then that is probably a lot more than 1 out of 16 interrupts getting dropped. The non critical stuff can go in the main loop (not in an interrupt) and figure out when to run based on a "system clock", and the critical stuff can be updated in the interrupt. Dont forget about volatile on globals updated in interrupts. __________________ WINDMILLS DO NOT WORK THAT WAY!!!