- added sam7s256 test example, and test result

git-svn-id: svn://svn.berlios.de/openocd/trunk@415 b42882b7-edfa-0310-969c-e2dbd0fdcd60

2 files changed, 316 insertions, 0 deletions

diff --git a/testing/examples/SAM7S256Test/src/crt.s b/testing/examples/SAM7S256Test/src/crt.s
new file mode 100644
index 00000000..16e5865e
--- /dev/null
+++ b/testing/examples/SAM7S256Test/src/crt.s
@@ -0,0 +1,225 @@
+/****************************************************************************
+*  Copyright (c) 2006 by Michael Fischer. All rights reserved.
+*
+*  Redistribution and use in source and binary forms, with or without 
+*  modification, are permitted provided that the following conditions 
+*  are met:
+*  
+*  1. Redistributions of source code must retain the above copyright 
+*     notice, this list of conditions and the following disclaimer.
+*  2. Redistributions in binary form must reproduce the above copyright
+*     notice, this list of conditions and the following disclaimer in the 
+*     documentation and/or other materials provided with the distribution.
+*  3. Neither the name of the author nor the names of its contributors may 
+*     be used to endorse or promote products derived from this software 
+*     without specific prior written permission.
+*
+*  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 
+*  "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 
+*  LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS 
+*  FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL 
+*  THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, 
+*  INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, 
+*  BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS 
+*  OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 
+*  AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 
+*  OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF 
+*  THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 
+*  SUCH DAMAGE.
+*
+****************************************************************************
+*
+*  History:
+*
+*  18.12.06  mifi   First Version
+*                   The hardware initialization is based on the startup file
+*                   crtat91sam7x256_rom.S from NutOS 4.2.1. 
+*                   Therefore partial copyright by egnite Software GmbH.
+****************************************************************************/
+
+/*
+ * Some defines for the program status registers
+ */
+   ARM_MODE_USER  = 0x10      /* Normal User Mode                             */ 
+   ARM_MODE_FIQ   = 0x11      /* FIQ Fast Interrupts Mode                     */
+   ARM_MODE_IRQ   = 0x12      /* IRQ Standard Interrupts Mode                 */
+   ARM_MODE_SVC   = 0x13      /* Supervisor Interrupts Mode                   */
+   ARM_MODE_ABORT = 0x17      /* Abort Processing memory Faults Mode          */
+   ARM_MODE_UNDEF = 0x1B      /* Undefined Instructions Mode                  */
+   ARM_MODE_SYS   = 0x1F      /* System Running in Priviledged Operating Mode */
+   ARM_MODE_MASK  = 0x1F
+   
+   I_BIT          = 0x80      /* disable IRQ when I bit is set */
+   F_BIT          = 0x40      /* disable IRQ when I bit is set */
+   
+/*
+ * Register Base Address
+ */
+   AIC_BASE         = 0xFFFFF000
+   AIC_EOICR_OFF    = 0x130
+   AIC_IDCR_OFF     = 0x124
+
+   RSTC_MR          = 0xFFFFFD08
+   RSTC_KEY         = 0xA5000000
+   RSTC_URSTEN      = 0x00000001
+
+   WDT_BASE         = 0xFFFFFD40
+   WDT_MR_OFF       = 0x00000004
+   WDT_WDDIS        = 0x00008000
+
+   MC_BASE          = 0xFFFFFF00
+   MC_FMR_OFF       = 0x00000060
+   MC_FWS_1FWS      = 0x00480100
+      
+   .section .vectors,"ax"
+   .code 32
+        
+/****************************************************************************/
+/*               Vector table and reset entry                               */
+/****************************************************************************/
+_vectors:
+   ldr pc, ResetAddr    /* Reset                 */
+   ldr pc, UndefAddr    /* Undefined instruction */
+   ldr pc, SWIAddr      /* Software interrupt    */
+   ldr pc, PAbortAddr   /* Prefetch abort        */
+   ldr pc, DAbortAddr   /* Data abort            */
+   ldr pc, ReservedAddr /* Reserved              */
+   ldr pc, IRQAddr      /* IRQ interrupt         */
+   ldr pc, FIQAddr      /* FIQ interrupt         */
+
+
+ResetAddr:     .word ResetHandler
+UndefAddr:     .word UndefHandler
+SWIAddr:       .word SWIHandler
+PAbortAddr:    .word PAbortHandler
+DAbortAddr:    .word DAbortHandler
+ReservedAddr:  .word 0
+IRQAddr:       .word IRQHandler
+FIQAddr:       .word FIQHandler
+
+   .ltorg
+
+   .section .init, "ax"
+   .code 32
+   
+   .global ResetHandler
+   .global ExitFunction
+   .extern main
+/****************************************************************************/
+/*                           Reset handler                                  */
+/****************************************************************************/
+ResetHandler:
+   /*
+    * The watchdog is enabled after processor reset. Disable it.
+    */
+   ldr   r1, =WDT_BASE
+   ldr   r0, =WDT_WDDIS
+   str   r0, [r1, #WDT_MR_OFF]
+
+   
+   /*
+    * Enable user reset: assertion length programmed to 1ms
+    */
+   ldr   r0, =(RSTC_KEY | RSTC_URSTEN | (4 << 8))
+   ldr   r1, =RSTC_MR
+   str   r0, [r1, #0]
+
+   
+   /*
+    * Use 2 cycles for flash access.
+    */
+   ldr   r1, =MC_BASE
+   ldr   r0, =MC_FWS_1FWS
+   str   r0, [r1, #MC_FMR_OFF]
+
+
+   /*
+    * Disable all interrupts. Useful for debugging w/o target reset.
+    */
+   ldr   r1, =AIC_BASE
+   mvn   r0, #0
+   str   r0, [r1, #AIC_EOICR_OFF]
+   str   r0, [r1, #AIC_IDCR_OFF]
+
+    
+   /*
+    * Setup a stack for each mode
+    */    
+   msr   CPSR_c, #ARM_MODE_UNDEF | I_BIT | F_BIT   /* Undefined Instruction Mode */     
+   ldr   sp, =__stack_und_end
+   
+   msr   CPSR_c, #ARM_MODE_ABORT | I_BIT | F_BIT   /* Abort Mode */
+   ldr   sp, =__stack_abt_end
+   
+   msr   CPSR_c, #ARM_MODE_FIQ | I_BIT | F_BIT     /* FIQ Mode */   
+   ldr   sp, =__stack_fiq_end
+   
+   msr   CPSR_c, #ARM_MODE_IRQ | I_BIT | F_BIT     /* IRQ Mode */   
+   ldr   sp, =__stack_irq_end
+   
+   msr   CPSR_c, #ARM_MODE_SVC | I_BIT | F_BIT     /* Supervisor Mode */
+   ldr   sp, =__stack_svc_end
+
+
+   /*
+    * Clear .bss section
+    */
+   ldr   r1, =__bss_start
+   ldr   r2, =__bss_end
+   ldr   r3, =0
+bss_clear_loop:
+   cmp   r1, r2
+   strne r3, [r1], #+4
+   bne   bss_clear_loop
+   
+   
+   /*
+    * Jump to main
+    */
+   mrs   r0, cpsr
+   bic   r0, r0, #I_BIT | F_BIT     /* Enable FIQ and IRQ interrupt */
+   msr   cpsr, r0
+   
+   mov   r0, #0 /* No arguments */
+   mov   r1, #0 /* No arguments */
+   ldr   r2, =main
+   mov   lr, pc
+   bx    r2     /* And jump... */
+                       
+ExitFunction:
+   nop
+   nop
+   nop
+   b ExitFunction   
+   
+
+/****************************************************************************/
+/*                         Default interrupt handler                        */
+/****************************************************************************/
+
+UndefHandler:
+   b UndefHandler
+   
+SWIHandler:
+   b SWIHandler
+
+PAbortHandler:
+   b PAbortHandler
+
+DAbortHandler:
+   b DAbortHandler
+   
+IRQHandler:
+   b IRQHandler
+   
+FIQHandler:
+   b FIQHandler
+   
+   .weak ExitFunction
+   .weak UndefHandler, PAbortHandler, DAbortHandler
+   .weak IRQHandler, FIQHandler
+
+   .ltorg
+/*** EOF ***/   
+  
+
diff --git a/testing/examples/SAM7S256Test/src/main.c b/testing/examples/SAM7S256Test/src/main.c
new file mode 100644
index 00000000..4579f17e
--- /dev/null
+++ b/testing/examples/SAM7S256Test/src/main.c
@@ -0,0 +1,91 @@
+/****************************************************************************
+*  Copyright (c) 2006 by Michael Fischer. All rights reserved.
+*
+*  Redistribution and use in source and binary forms, with or without 
+*  modification, are permitted provided that the following conditions 
+*  are met:
+*  
+*  1. Redistributions of source code must retain the above copyright 
+*     notice, this list of conditions and the following disclaimer.
+*  2. Redistributions in binary form must reproduce the above copyright
+*     notice, this list of conditions and the following disclaimer in the 
+*     documentation and/or other materials provided with the distribution.
+*  3. Neither the name of the author nor the names of its contributors may 
+*     be used to endorse or promote products derived from this software 
+*     without specific prior written permission.
+*
+*  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 
+*  "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 
+*  LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS 
+*  FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL 
+*  THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, 
+*  INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, 
+*  BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS 
+*  OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 
+*  AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 
+*  OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF 
+*  THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 
+*  SUCH DAMAGE.
+*
+****************************************************************************
+*  History:
+*
+*  30.03.06  mifi   First Version for Insight tutorial
+*  26.01.08  mifi   Added variable "d" to test const variable.
+****************************************************************************/
+#define __MAIN_C__
+
+/*
+ * I use the include only, to show
+ * how to setup a include dir in the makefile
+ */
+#include "typedefs.h"
+
+/*=========================================================================*/
+/*  DEFINE: All Structures and Common Constants                            */
+/*=========================================================================*/
+
+/*=========================================================================*/
+/*  DEFINE: Prototypes                                                     */
+/*=========================================================================*/
+
+/*=========================================================================*/
+/*  DEFINE: Definition of all local Data                                   */
+/*=========================================================================*/
+static const DWORD d = 7;
+
+/*=========================================================================*/
+/*  DEFINE: Definition of all local Procedures                             */
+/*=========================================================================*/
+
+/*=========================================================================*/
+/*  DEFINE: All code exported                                              */
+/*=========================================================================*/
+/***************************************************************************/
+/*  main                                                                   */
+/***************************************************************************/
+int main (void)
+{
+  DWORD a = 1;
+  DWORD b = 2;
+  DWORD c = 0;
+  
+  a = a + d;
+    
+  while (1)
+  {
+    a++;
+    b++;
+    c = a + b;
+  }
+  
+  /*
+   * This return here make no sense.
+   * But to prevent the compiler warning:
+   * "return type of 'main' is not 'int'
+   * we use an int as return :-)
+   */ 
+  return(0);
+}
+
+/*** EOF ***/