First version under SVN is V4.0.1

2025-09-01 11:53:53 -04:00 · 2006-05-02 09:39:15 +00:00 · 2006-05-02 09:39:15 +00:00 · b6df57c7e3
commit b6df57c7e3
parent 243393860c
918 changed files with 269038 additions and 0 deletions
--- a/Demo/PIC18_WizC/serial/isrSerialRx.c
+++ b/Demo/PIC18_WizC/serial/isrSerialRx.c
@ -0,0 +1,106 @@
+/*
+	FreeRTOS V4.0.1 - Copyright (C) 2003-2006 Richard Barry.
+
+	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 as published by
+	the Free Software Foundation; either version 2 of the License, or
+	(at your option) any later version.
+
+	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
+	along with FreeRTOS; if not, write to the Free Software
+	Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+
+	A special exception to the GPL can be applied should you wish to distribute
+	a combined work that includes FreeRTOS, without being obliged to provide
+	the source code for any proprietary components.  See the licensing section 
+	of http://www.FreeRTOS.org for full details of how and when the exception
+	can be applied.
+
+	***************************************************************************
+	See http://www.FreeRTOS.org for documentation, latest information, license 
+	and contact details.  Please ensure to read the configuration and relevant 
+	port sections of the online documentation.
+	***************************************************************************
+*/
+
+/*
+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 portCHAR			cChar;
+		#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;	
+			}
+
+			if( xQueueSendFromISR( xRxedChars, ( const void * ) &cChar, pdFALSE ) )
+			{
+				uxSwitchRequested = pdTRUE;
+			}
+		}
+	}
+}
+
+#endif	/* _FREERTOS_SERIAL_ISRSERIALRX_C */