/*\r
- FreeRTOS V6.1.0 - Copyright (C) 2010 Real Time Engineers Ltd.\r
+ FreeRTOS V7.0.1 - Copyright (C) 2011 Real Time Engineers Ltd.\r
+ \r
\r
***************************************************************************\r
- * *\r
- * If you are: *\r
- * *\r
- * + New to FreeRTOS, *\r
- * + Wanting to learn FreeRTOS or multitasking in general quickly *\r
- * + Looking for basic training, *\r
- * + Wanting to improve your FreeRTOS skills and productivity *\r
- * *\r
- * then take a look at the FreeRTOS books - available as PDF or paperback *\r
- * *\r
- * "Using the FreeRTOS Real Time Kernel - a Practical Guide" *\r
- * http://www.FreeRTOS.org/Documentation *\r
- * *\r
- * A pdf reference manual is also available. Both are usually delivered *\r
- * to your inbox within 20 minutes to two hours when purchased between 8am *\r
- * and 8pm GMT (although please allow up to 24 hours in case of *\r
- * exceptional circumstances). Thank you for your support! *\r
- * *\r
+ * *\r
+ * FreeRTOS tutorial books are available in pdf and paperback. *\r
+ * Complete, revised, and edited pdf reference manuals are also *\r
+ * available. *\r
+ * *\r
+ * Purchasing FreeRTOS documentation will not only help you, by *\r
+ * ensuring you get running as quickly as possible and with an *\r
+ * in-depth knowledge of how to use FreeRTOS, it will also help *\r
+ * the FreeRTOS project to continue with its mission of providing *\r
+ * professional grade, cross platform, de facto standard solutions *\r
+ * for microcontrollers - completely free of charge! *\r
+ * *\r
+ * >>> See http://www.FreeRTOS.org/Documentation for details. <<< *\r
+ * *\r
+ * Thank you for using FreeRTOS, and thank you for your support! *\r
+ * *\r
***************************************************************************\r
\r
+\r
This file is part of the FreeRTOS distribution.\r
\r
FreeRTOS is free software; you can redistribute it and/or modify it under\r
the terms of the GNU General Public License (version 2) as published by the\r
Free Software Foundation AND MODIFIED BY the FreeRTOS exception.\r
- ***NOTE*** The exception to the GPL is included to allow you to distribute\r
- a combined work that includes FreeRTOS without being obliged to provide the\r
- source code for proprietary components outside of the FreeRTOS kernel.\r
- FreeRTOS is distributed in the hope that it will be useful, but WITHOUT\r
- ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or\r
- FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for\r
+ >>>NOTE<<< The modification to the GPL is included to allow you to\r
+ distribute a combined work that includes FreeRTOS without being obliged to\r
+ provide the source code for proprietary components outside of the FreeRTOS\r
+ kernel. FreeRTOS is distributed in the hope that it will be useful, but\r
+ WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY\r
+ or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for\r
more details. You should have received a copy of the GNU General Public\r
License and the FreeRTOS license exception along with FreeRTOS; if not it\r
can be viewed here: http://www.freertos.org/a00114.html and also obtained\r
/* BASIC INTERRUPT DRIVEN SERIAL PORT DRIVER.\r
*\r
* This is not a proper UART driver. It only supports one port, uses loopback\r
- * mode, and is used to test interrupts that use the FreeRTOS API as part of \r
+ * mode, and is used to test interrupts that use the FreeRTOS API as part of\r
* a wider test suite. Nor is it intended to show an efficient implementation\r
* of a UART interrupt service routine as queues are used to pass individual\r
* characters one at a time!\r
}\r
/*-----------------------------------------------------------*/\r
\r
+/* The implementation of this interrupt is provided to demonstrate the use\r
+of queues from inside an interrupt service routine. It is *not* intended to\r
+be an efficient interrupt implementation. A real application should make use\r
+of the DMA. Or, as a minimum, transmission and reception could use a simple\r
+RAM ring buffer, and synchronise with a task using a semaphore when a complete\r
+message has been received or transmitted. */\r
#pragma vector=USCI_A1_VECTOR\r
-static __interrupt void prvUSCI_A0_ISR( void )\r
+static __interrupt void prvUSCI_A1_ISR( void )\r
{\r
-signed portCHAR cChar;\r
-portBASE_TYPE xTaskWoken = pdFALSE;\r
+signed char cChar;\r
portBASE_TYPE xHigherPriorityTaskWoken = pdFALSE;\r
\r
while( ( UCA1IFG & UCRXIFG ) != 0 )\r
{\r
/* The previous character has been transmitted. See if there are any\r
further characters waiting transmission. */\r
- if( xQueueReceiveFromISR( xCharsForTx, &cChar, &xTaskWoken ) == pdTRUE )\r
+ if( xQueueReceiveFromISR( xCharsForTx, &cChar, &xHigherPriorityTaskWoken ) == pdTRUE )\r
{\r
/* There was another character queued - transmit it now. */\r
UCA1TXBUF = cChar;\r
has a priority equal to or above the task that this interrupt interrupted,\r
then lHigherPriorityTaskWoken will have been set to pdTRUE internally within\r
xQueuesendFromISR(), and portEND_SWITCHING_ISR() will ensure that this\r
- interrupt returns directly to the higher priority unblocked task. \r
+ interrupt returns directly to the higher priority unblocked task.\r
\r
THIS MUST BE THE LAST THING DONE IN THE ISR. */ \r
portYIELD_FROM_ISR( xHigherPriorityTaskWoken );\r
projects / freertos / blobdiff