Nevermind. I figured out another way. I'm going to invoke my transmit ISR using a TRAP instruction for my very first transmission after reset. In order to avoid the special case in my transmit routine, I'm going to send a dummy CAN frame from my TouCAN INIT routine with the TouCAN in loopback mode. Jeff jeffrey.tenney@... on 12/11/2002 03:04:04 PM Please respond to 68300@yahoogroups.com To: 68300@yahoogroups.com cc: Subject: [68300] TouCAN -- first Tx interrupt? Anybody know of a way to transmit your "first" CAN frame under interrupt control using the TouCAN? My transmit code is in the interrupt handler, but the TouCAN apparently won't give me a transmit interrupt until I've transmitted something. It's a catch-22. The book says I can't set a flag in the IFLAG register manually. And, I'd rather not call the body of my interrupt handler as a subroutine for the special case of my first transmission. Any ideas? Thanks, Jeff --------------------------------------------------- To unsubscribe from this group, send an email to: 68300-unsubscribe@yahoogroups.com To learn more about Motorola Microcontrollers, please visit http://www.motorola.com/mcu Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/
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Re: [68300] TouCAN -- first Tx interrupt?
2002-12-12 by jeffrey.tenney@gm.com