http://forums.leaflabs.com/topic.php?id=68749 A place to share, learn, and grow... en-US Fri, 22 Jan 2016 00:18:30 +0000 http://bbpress.org/?v=1.0.2 q http://forums.leaflabs.com/search.php http://forums.leaflabs.com/topic.php?id=68749#post-97593 Wed, 09 Oct 2013 05:47:17 +0000 Mike McCauley 97593@http://forums.leaflabs.com/ <p>There is a problem with i2c_stop_condition() in i2c.h in libmaple.<br /> After setting CR1, it waits for the stop condition to occur after the last byte is received. Since this routine is called by _i2c_irq_handler() it has the effect of putting this polling loop inside the ISR, causing *all* interrupts to be blocked for the entire last byte of the transfer (about 30us in fast mode). This can have serious effects on other ISRs. </p>