Added Software projects

git-svn-id: file:///srv/dev-disk-by-uuid-17e88007-4d0c-45e0-8757-cacfcc458630/repositories/svn/Diplomarbeit@55 9fe90eed-be63-e94b-8204-d34ff4c2ff93
2008-12-23 10:34:08 +00:00
parent ee5a771818
commit 373a8c32b2
348 changed files with 86781 additions and 0 deletions
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+/* ---------------------------------------------------------------------------
+ * ssp0ISR.c - v0.1                                     (c) 2007 Micro-key bv
+ * ---------------------------------------------------------------------------
+ * Micro-key bv
+ * Industrieweg 28, 9804 TG Noordhorn
+ * Postbus 92, 9800 AB Zuidhorn
+ * The Netherlands
+ * Tel: +31 594 503020
+ * Fax: +31 594 505825
+ * Email: support@microkey.nl  
+ * Web: www.microkey.nl
+ * ---------------------------------------------------------------------------
+ * Description: Interrupt service routine for SSP0
+ * ---------------------------------------------------------------------------
+ * Version(s):  0.1, 28-11-2007, fvds.
+ *                   Creation.
+ * ---------------------------------------------------------------------------
+ */
+
+/* ---------------------------------------------------------------------------
+ * System include files
+ * ---------------------------------------------------------------------------
+ */
+#include <stdio.h>
+#include <stdlib.h>
+
+
+/* ---------------------------------------------------------------------------
+ * Application include files
+ * ---------------------------------------------------------------------------
+ */
+#include "LPC23xx.h"
+#include "types.h"
+
+#include "ssp1ISR.h"
+//#include "armVIC.h"
+
+/* FreeRTOS includes */
+#include "FreeRTOS.h"
+#include "Task.h"
+#include "queue.h"
+
+
+/* ---------------------------------------------------------------------------
+ * Local constant and macro definitions
+ * ---------------------------------------------------------------------------
+ */
+
+/* ---------------------------------------------------------------------------
+ * Global variable definitions
+ * ---------------------------------------------------------------------------
+ */
+extern xQueueHandle ssp1DispatchedIsrQueue;
+
+/* ---------------------------------------------------------------------------
+ * Local variable definitions
+ * ---------------------------------------------------------------------------
+ */
+/* statistics of all the interrupts */
+static volatile UINT32 interruptRxStat = 0;
+static volatile UINT32 interruptOverRunStat = 0;
+static volatile UINT32 interruptRxTimeoutStat = 0;
+static UINT8 receivedByte;
+
+
+/* ---------------------------------------------------------------------------
+ * Local function definitions
+ * ---------------------------------------------------------------------------
+ */
+static void ssp1Handler( void );
+
+
+void ssp1ISR( void )
+{
+    /* Save the context of the interrupted task. */
+    portSAVE_CONTEXT();
+        {
+        ssp1Handler();
+        }
+    /* Restore the context of whichever task is going to run once the interrupt
+    completes. */
+    portRESTORE_CONTEXT();
+}
+
+void ssp1Handler( void )
+{
+    UINT32 regValue;
+
+    regValue = SSP1MIS;
+    if ( regValue & SSPMIS_RORMIS ) /* Receive overrun interrupt */
+        {
+        interruptOverRunStat++;
+        SSP1ICR = SSPICR_RORIC; /* clear interrupt */
+        }
+      
+    if ( regValue & SSPMIS_RTMIS )  /* Receive timeout interrupt */
+        {
+        interruptRxTimeoutStat++;
+        
+        while ( SSP1SR & SSPSR_RNE ) // While not empty
+            {
+            receivedByte = SSP1DR;
+            xQueueSendToBackFromISR( ssp1DispatchedIsrQueue, &receivedByte, pdFALSE );
+            }
+        
+        SSP1ICR = SSPICR_RTIC;  /* clear interrupt */
+        }
+
+    /* please be aware that, in main and ISR, CurrentRxIndex and CurrentTxIndex
+    are shared as global variables. It may create some race condition that main
+    and ISR manipulate these variables at the same time. SSPSR_BSY checking (polling)
+    in both main and ISR could prevent this kind of race condition */
+    if ( regValue & SSPMIS_RXMIS )  /* Rx at least half full */
+        {
+        interruptRxStat++;  /* receive until it's empty */
+        
+        while ( SSP1SR & SSPSR_RNE ) // While not empty
+            {
+            receivedByte = SSP1DR;
+            xQueueSendToBackFromISR( ssp1DispatchedIsrQueue, &receivedByte, pdFALSE );
+            }
+        }
+
+    VICVectAddr = 0;           /* Acknowledge Interrupt */
+}
+