Hello all! Device: Coldfire MCF5249C3 alike device with uClinux OS.
I have a problem with IRQ handling in Linux-2.4.34. Previously Linux-2.4.20 kernel used without problems in IRQ handling, but when I start to use Linux-2.4.34, I got unexpected IRQ handling delays. At oscillograms on page http://kicad.sourceforge.net/wiki/index.php/IRQ_Handling_Problem you can see signal at line IRQ_IDE. With Linux-2.4.34, at start of each IRQ packet, I see delays ~1.8ms. What can be a reason for such problem? Toolchain used for Linux-2.4.20: m68k-elf-tools-20030314.sh (gcc-2.95.3) Toolchains used for Linux-2.4.34: m68k-uclinux-tools-20061214.sh (gcc-4.1.1) freescale-coldfire-4.3-45-m68k-uclinux-i686-pc-linux-gnu (gcc-4.3.2) For gcc-4.x toolchains - no difference in IRQ_IDE behaviour (still have delays). Best regards! -- Igor Plyatov _______________________________________________ uClinux-dev mailing list [email protected] http://mailman.uclinux.org/mailman/listinfo/uclinux-dev This message was resent by [email protected] To unsubscribe see: http://mailman.uclinux.org/mailman/options/uclinux-dev
