Add FreeRTOS-Plus directory.

2025-08-19 09:38:32 -04:00 · 2012-08-11 21:34:11 +00:00 · 2012-08-11 21:34:11 +00:00 · f508a5f653
commit f508a5f653
parent 7bd5f21ad5
6798 changed files with 134949 additions and 19 deletions
--- a/FreeRTOS/Demo/PIC18_WizC/serial/isrSerialRx.c
+++ b/FreeRTOS/Demo/PIC18_WizC/serial/isrSerialRx.c
@ -0,0 +1,144 @@
+/*
+    FreeRTOS V7.1.1 - Copyright (C) 2012 Real Time Engineers Ltd.
+	
+
+    ***************************************************************************
+     *                                                                       *
+     *    FreeRTOS tutorial books are available in pdf and paperback.        *
+     *    Complete, revised, and edited pdf reference manuals are also       *
+     *    available.                                                         *
+     *                                                                       *
+     *    Purchasing FreeRTOS documentation will not only help you, by       *
+     *    ensuring you get running as quickly as possible and with an        *
+     *    in-depth knowledge of how to use FreeRTOS, it will also help       *
+     *    the FreeRTOS project to continue with its mission of providing     *
+     *    professional grade, cross platform, de facto standard solutions    *
+     *    for microcontrollers - completely free of charge!                  *
+     *                                                                       *
+     *    >>> See http://www.FreeRTOS.org/Documentation for details. <<<     *
+     *                                                                       *
+     *    Thank you for using FreeRTOS, and thank you for your support!      *
+     *                                                                       *
+    ***************************************************************************
+
+
+    This file is part of the FreeRTOS distribution.
+
+    FreeRTOS is free software; you can redistribute it and/or modify it under
+    the terms of the GNU General Public License (version 2) as published by the
+    Free Software Foundation AND MODIFIED BY the FreeRTOS exception.
+    >>>NOTE<<< The modification to the GPL is included to allow you to
+    distribute a combined work that includes FreeRTOS without being obliged to
+    provide the source code for proprietary components outside of the FreeRTOS
+    kernel.  FreeRTOS is distributed in the hope that it will be useful, but
+    WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+    or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+    more details. You should have received a copy of the GNU General Public
+    License and the FreeRTOS license exception along with FreeRTOS; if not it
+    can be viewed here: http://www.freertos.org/a00114.html and also obtained
+    by writing to Richard Barry, contact details for whom are available on the
+    FreeRTOS WEB site.
+
+    1 tab == 4 spaces!
+    
+    ***************************************************************************
+     *                                                                       *
+     *    Having a problem?  Start by reading the FAQ "My application does   *
+     *    not run, what could be wrong?                                      *
+     *                                                                       *
+     *    http://www.FreeRTOS.org/FAQHelp.html                               *
+     *                                                                       *
+    ***************************************************************************
+
+    
+    http://www.FreeRTOS.org - Documentation, training, latest information, 
+    license and contact details.
+    
+    http://www.FreeRTOS.org/plus - A selection of FreeRTOS ecosystem products,
+    including FreeRTOS+Trace - an indispensable productivity tool.
+
+    Real Time Engineers ltd license FreeRTOS to High Integrity Systems, who sell 
+    the code with commercial support, indemnification, and middleware, under 
+    the OpenRTOS brand: http://www.OpenRTOS.com.  High Integrity Systems also
+    provide a safety engineered and independently SIL3 certified version under 
+    the SafeRTOS brand: http://www.SafeRTOS.com.
+*/
+
+/*
+Changes from V3.0.0
+	+ ISRcode pulled inline to reduce stack-usage.
+
+	+ Added functionality to only call vTaskSwitchContext() once
+	  when handling multiple interruptsources in a single interruptcall.
+
+	+ Filename changed to a .c extension to allow stepping through code
+	  using F7.
+
+Changes from V3.0.1
+*/
+
+#ifndef _FREERTOS_SERIAL_ISRSERIALRX_C
+#define _FREERTOS_SERIAL_ISRSERIALRX_C
+
+#define serCONTINUOUS_RX		( 1 )
+#define serCLEAR_OVERRUN		( 0 )
+
+{
+	/*
+	 * Was the interrupt a byte being received?
+	 */
+	if( bRCIF && bRCIE)
+	{
+		/*
+		 * Queue to interface between comms API and interrupt routine.
+		*/
+		extern xQueueHandle xRxedChars;
+		
+		/*
+		 * Because we are not allowed to use local variables here,
+		 * PRODL is (ab)used as temporary storage.  This is allowed
+		 * because this SFR will be restored before exiting the ISR.
+		 */
+		extern char			cChar;
+		extern portBASE_TYPE xHigherPriorityTaskWoken;
+		#pragma locate cChar	&PRODL
+
+		/*
+		 * If there was a framing error, just get and ignore
+		 * the character
+		 */
+		if( bFERR )
+		{
+			cChar = RCREG;
+		}
+		else
+		{
+			/*
+			 * Get the character and post it on the queue of Rxed
+			 * characters. If the post causes a task to wake ask
+			 * for a context switch as the woken task may have a
+			 * higher priority than the task we have interrupted.
+			 */
+			cChar = RCREG;
+
+			/*
+			 * Clear any overrun errors.
+			 */
+			if( bOERR )
+			{
+				bCREN = serCLEAR_OVERRUN;
+				bCREN = serCONTINUOUS_RX;	
+			}
+
+			xHigherPriorityTaskWoken = pdFALSE;
+			xQueueSendFromISR( xRxedChars, ( const void * ) &cChar, &xHigherPriorityTaskWoken );
+
+			if( xHigherPriorityTaskWoken )
+			{
+				uxSwitchRequested = pdTRUE;
+			}
+		}
+	}
+}
+
+#endif	/* _FREERTOS_SERIAL_ISRSERIALRX_C */