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[avr-libc-dev] calling i2cMasterSendNI from SIG_OVERFLOW0


From: Vinnie Moscaritolo
Subject: [avr-libc-dev] calling i2cMasterSendNI from SIG_OVERFLOW0
Date: Tue, 23 Dec 2003 15:56:52 -0800


I am trying to write a driver for the Max7315 family of devices.
to handle things like pulsing LEDs etc.. I have setup some code to run during
SIGNAL(SIG_OVERFLOW0)  setup for TIMER_CLK_DIV256  on an 16Mhz atMega8.

this code makes two calls to i2cMasterSendNI to write out some data (100 mhz)

I noticed that every now and then the processor hangs.. I am wondering if
the  i2cMasterSendNI can be called safely at interrupt time, and if so maybe
there is something that I don't know?


--

Vinnie Moscaritolo





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