diff options
Diffstat (limited to 'nuttx/arch/z16/src/z16f/z16f_head.S')
| -rwxr-xr-x | nuttx/arch/z16/src/z16f/z16f_head.S | 140 |
1 files changed, 140 insertions, 0 deletions
diff --git a/nuttx/arch/z16/src/z16f/z16f_head.S b/nuttx/arch/z16/src/z16f/z16f_head.S new file mode 100755 index 000000000..02f1a387a --- /dev/null +++ b/nuttx/arch/z16/src/z16f/z16f_head.S @@ -0,0 +1,140 @@ +/**************************************************************************
+ * arch/z16/src/z16f/z16f_head.S
+ * Z16F Reset Entry Point
+ *
+ * Copyright (C) 2008 Gregory Nutt. All rights reserved.
+ * Author: Gregory Nutt <spudmonkey@racsa.co.cr>
+ *
+ * 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 NuttX 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.
+ *
+ **************************************************************************/
+
+/**************************************************************************
+ * Included Files
+ **************************************************************************/
+
+#include <nuttx/config.h>
+
+/**************************************************************************
+ * External References / External Definitions
+ **************************************************************************/
+
+ xref _z16f_lowinit:EROM
+ xref _os_start:EROM
+ xdef _default_handler
+ xdef _reset
+
+/**************************************************************************
+ * Flash Option Byte Setup
+ **************************************************************************/
+
+ define FOPTIONSEG, SPACE=ROM, ORG=0
+ segment FOPTIONSEG
+ db %FF
+ db %FF
+ db %FF
+ db %FF
+
+/**************************************************************************
+ * vectors
+ **************************************************************************/
+
+ vector RESET=_reset
+ vector SYSEXC=_default_handler
+ vector TIMER2=_default_handler
+ vector TIMER1=_default_handler
+ vector TIMER0=_default_handler
+ vector UART0_RX=_default_handler
+ vector UART0_TX=_default_handler
+ vector I2C=_default_handler
+ vector SPI=_default_handler
+ vector ADC=_default_handler
+ vector P7AD=_default_handler
+ vector P6AD=_default_handler
+ vector P5AD=_default_handler
+ vector P4AD=_default_handler
+ vector P3AD=_default_handler
+ vector P2AD=_default_handler
+ vector P1AD=_default_handler
+ vector P0AD=_default_handler
+ vector PWM_TIMER=_default_handler
+ vector UART1_RX=_default_handler
+ vector UART1_TX=_default_handler
+ vector PWM_FAULT=_default_handler
+ vector C3=_default_handler
+ vector C2=_default_handler
+ vector C1=_default_handler
+ vector C0=_default_handler
+
+/**************************************************************************
+ * Equates
+ **************************************************************************/
+
+STACK_TOP equ %FFC000
+
+/**************************************************************************
+ * Data Allocation
+ **************************************************************************/
+
+/**************************************************************************
+ * Code
+ **************************************************************************/
+
+ define CODESEG, SPACE=EROM
+ segment CODESEG
+
+/**************************************************************************
+ * Name: _reset
+ *
+ * Description:
+ * Reset entry point
+ *
+ **************************************************************************/
+
+_reset:
+ ld sp, #STACK_TOP /* Set Stack Pointer */
+
+ call _z16f_lowinit /* call _z16f_lowinit */
+ call _os_start /* Start the operating system */
+_halted: /* _os_start() should not return */
+ halt
+ jp _halted
+
+/**************************************************************************
+ * Name: _default_handler
+ *
+ * Description:
+ * This is where interrupts will go if they have not yet been intialize
+ *
+ **************************************************************************/
+
+_default_handler:
+ nop
+ iret
+
+ end
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