From e018ceebed74b8223482bc9d1ed0b31c938381da Mon Sep 17 00:00:00 2001 From: Yuval Adam Date: Mon, 29 Oct 2012 23:04:19 +0200 Subject: New example files --- boards/ek-lm4f120xl/interrupts/readme.txt | 33 +++++++++++++++++++++++++++++++ 1 file changed, 33 insertions(+) create mode 100644 boards/ek-lm4f120xl/interrupts/readme.txt (limited to 'boards/ek-lm4f120xl/interrupts/readme.txt') diff --git a/boards/ek-lm4f120xl/interrupts/readme.txt b/boards/ek-lm4f120xl/interrupts/readme.txt new file mode 100644 index 0000000..791d00d --- /dev/null +++ b/boards/ek-lm4f120xl/interrupts/readme.txt @@ -0,0 +1,33 @@ +Interrupts + +This example application demonstrates the interrupt preemption and +tail-chaining capabilities of Cortex-M4 microprocessor and NVIC. Nested +interrupts are synthesized when the interrupts have the same priority, +increasing priorities, and decreasing priorities. With increasing +priorities, preemption will occur; in the other two cases tail-chaining +will occur. The currently pending interrupts and the currently executing +interrupt will be displayed on the display; GPIO pins E1, E2 and E3 will +be asserted upon interrupt handler entry and de-asserted before interrupt +handler exit so that the off-to-on time can be observed with a scope or +logic analyzer to see the speed of tail-chaining (for the two cases where +tail-chaining is occurring). + +------------------------------------------------------------------------------- + +Copyright (c) 2012 Texas Instruments Incorporated. All rights reserved. +Software License Agreement + +Texas Instruments (TI) is supplying this software for use solely and +exclusively on TI's microcontroller products. The software is owned by +TI and/or its suppliers, and is protected under applicable copyright +laws. You may not combine this software with "viral" open-source +software in order to form a larger program. + +THIS SOFTWARE IS PROVIDED "AS IS" AND WITH ALL FAULTS. +NO WARRANTIES, WHETHER EXPRESS, IMPLIED OR STATUTORY, INCLUDING, BUT +NOT LIMITED TO, IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +A PARTICULAR PURPOSE APPLY TO THIS SOFTWARE. TI SHALL NOT, UNDER ANY +CIRCUMSTANCES, BE LIABLE FOR SPECIAL, INCIDENTAL, OR CONSEQUENTIAL +DAMAGES, FOR ANY REASON WHATSOEVER. + +This is part of revision 9453 of the EK-LM4F120XL Firmware Package. -- cgit v1.3.1