gwj / at91sam9263 · Commits

Commit 0637b04ff18065fa24765b22c44fa16dae62c114

Authored by Grzegorz Jabłoński
1 parent 5439c95c

Compile script improved.

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virtual_lab/compileme.sh
  View file @0637b04
1   -arm-none-eabi-gcc -mcpu=arm926ej-s -nostdlib main.c -o main.elf
2   -gdb-multiarch main.elf
  1 +arm-none-eabi-gcc -E -I include -D__ASSEMBLY__ cstartup.S > cstartup_pre.S
  2 +arm-none-eabi-gcc -g -mcpu=arm926ej-s -c cstartup_pre.S -o cstartup.o
  3 +arm-none-eabi-gcc -g -mcpu=arm926ej-s -I include lowlevel.c main.c cstartup.o -o main.elf -Ttext 0x20000000 -Tdata 0x300000 -T script.lds
  4 +# -Wl,--verbose
  5 +
  6 +#gdb-multiarch main.elf
... ...
virtual_lab/cstartup.S 0 → 100644
  View file @0637b04
  1 +/* ----------------------------------------------------------------------------
  2 + * ATMEL Microcontroller Software Support - ROUSSET -
  3 + * ----------------------------------------------------------------------------
  4 + * Copyright (c) 2006, Atmel Corporation
  5 +
  6 + * All rights reserved.
  7 + *
  8 + * Redistribution and use in source and binary forms, with or without
  9 + * modification, are permitted provided that the following conditions are met:
  10 + *
  11 + * - Redistributions of source code must retain the above copyright notice,
  12 + * this list of conditions and the disclaimer below.
  13 + *
  14 + * - Redistributions in binary form must reproduce the above copyright notice,
  15 + * this list of conditions and the disclaimer below in the documentation and/or
  16 + * other materials provided with the distribution.
  17 + *
  18 + * Atmel's name may not be used to endorse or promote products derived from
  19 + * this software without specific prior written permission.
  20 + *
  21 + * DISCLAIMER: THIS SOFTWARE IS PROVIDED BY ATMEL "AS IS" AND ANY EXPRESS OR
  22 + * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
  23 + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT ARE
  24 + * DISCLAIMED. IN NO EVENT SHALL ATMEL BE LIABLE FOR ANY DIRECT, INDIRECT,
  25 + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  26 + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,
  27 + * OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
  28 + * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
  29 + * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
  30 + * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  31 + * ----------------------------------------------------------------------------
  32 + * File Name : cstartup.S
  33 + * Object :
  34 + * Creation : FDy Nov 10th 2006
  35 + * Updates : ODi Nov 20th 2006 Cleanup
  36 + *-----------------------------------------------------------------------------
  37 + */
  38 +
  39 +#include "project.h"
  40 +
  41 +#define TOP_OF_MEMORY (AT91C_IRAM + AT91C_IRAM_SIZE)
  42 +#define ABT_STACK_SIZE 8*3*4
  43 +#define IRQ_STACK_SIZE 8*3*4
  44 +
  45 +#define ARM_MODE_ABT 0x17
  46 +#define ARM_MODE_FIQ 0x11
  47 +#define ARM_MODE_IRQ 0x12
  48 +#define ARM_MODE_SVC 0x13
  49 +
  50 +#define I_BIT 0x80
  51 +#define F_BIT 0x40
  52 +
  53 +
  54 +/* Application startup entry point */
  55 + .globl reset_handler
  56 + .align 4
  57 +
  58 +.section .vectors
  59 +.arm
  60 +
  61 +
  62 +/* Exception vectors (should be a branch to be detected as a valid code by the rom */
  63 +_exception_vectors:
  64 +reset_vector:
  65 + ldr pc, =reset_handler
  66 +undef_vector:
  67 + b undef_vector /* Undefined Instruction */
  68 +swi_vector:
  69 + b swi_vector /* Software Interrupt */
  70 +pabt_vector:
  71 + ldr pc, =pabt_handler /* Prefetch Abort */
  72 +dabt_vector:
  73 + ldr pc, =dabt_handler /* Data Abort */
  74 +rsvd_vector:
  75 + b rsvd_vector /* reserved */
  76 +irq_vector:
  77 + b irq_handler /* IRQ : read the AIC */
  78 +fiq_vector:
  79 +/*------------------------------------------------------------------------------
  80 + *- Function : fiq_handler
  81 + *- Treatments : FIQ Interrupt Handler.
  82 + *- Called Functions :
  83 + *------------------------------------------------------------------------------*/
  84 +fiq_handler:
  85 + b fiq_handler
  86 +
  87 +/*------------------------------------------------------------------------------
  88 + *- Function : irq_handler
  89 + *- Treatments : IRQ Controller Interrupt Handler.
  90 + *- Called Functions : AIC_IVR[interrupt]
  91 + *------------------------------------------------------------------------------*/
  92 +irq_handler:
  93 +/*- Manage Exception Entry */
  94 +/*- Adjust and save LR_irq in IRQ stack */
  95 + sub lr, lr, #4
  96 + stmfd sp!, {lr}
  97 +/*- Save r0 and SPSR in IRQ stack */
  98 + mrs r14, SPSR
  99 + stmfd sp!, {r0,r14}
  100 +
  101 +/*- Write in the IVR to support Protect Mode */
  102 +/*- No effect in Normal Mode */
  103 +/*- De-assert the NIRQ and clear the source in Protect Mode */
  104 + ldr r14, =AT91C_BASE_AIC
  105 + ldr r0 , [r14, #AIC_IVR]
  106 + str r14, [r14, #AIC_IVR]
  107 +
  108 +/*- Enable Interrupt and Switch in Supervisor Mode */
  109 + msr CPSR_c, #ARM_MODE_SVC
  110 +
  111 +/*- Save scratch/used registers and LR in User Stack */
  112 + stmfd sp!, {r1-r3, r12, r14}
  113 +
  114 +/*- Branch to the routine pointed by the AIC_IVR */
  115 + mov r14, pc
  116 + bx r0
  117 +
  118 +/*- Restore scratch/used registers and LR from User Stack */
  119 + ldmia sp!, {r1-r3, r12, r14}
  120 +
  121 +/*- Disable Interrupt and switch back in IRQ mode */
  122 + msr CPSR_c, #ARM_MODE_IRQ | I_BIT
  123 +
  124 +/*- Mark the End of Interrupt on the AIC */
  125 + ldr r14, =AT91C_BASE_AIC
  126 + str r14, [r14, #AIC_EOICR]
  127 +
  128 +/*- Restore SPSR_irq and r0 from IRQ stack */
  129 + ldmia sp!, {r0,r14}
  130 + msr SPSR_cxsf, r14
  131 +
  132 +/*- Restore adjusted LR_irq from IRQ stack directly in the PC */
  133 + ldmia sp!, {pc}^
  134 +
  135 +/*------------------------------------------------------------------------------
  136 + *- Function : reset_handler
  137 + *- Treatments : Reset Interrupt Handler.
  138 + *- Called Functions : lowlevel_init
  139 + * main
  140 + *------------------------------------------------------------------------------*/
  141 +.section .text
  142 +reset_handler:
  143 + ldr pc, =_low_level_init
  144 +
  145 +/*------------------------------------------------------------------------------
  146 + *- Low level Init is performed in a C function: lowlevel_init
  147 + *- Init Stack Pointer to a valid memory area before calling lowlevel_init
  148 + *------------------------------------------------------------------------------*/
  149 +/*- Temporary stack in internal RAM for Low Level Init execution */
  150 +_low_level_init:
  151 + ldr r2, =_lp_ll_init
  152 + ldmia r2, {r0, r1}
  153 + mov sp, r1
  154 + mov lr, pc
  155 + bx r0 /* Branch on C function (interworking) */
  156 +
  157 +/*------------------------------------------------------------------------------
  158 + *- Setup the stack for each mode
  159 + *------------------------------------------------------------------------------*/
  160 +_stack_init:
  161 + ldr r2, =_lp_stack_init
  162 + ldmia r2, {r0, r1, r2}
  163 +
  164 +/*- Set up Abort Mode and set ABT Mode Stack */
  165 + msr CPSR_c, #ARM_MODE_ABT | I_BIT | F_BIT
  166 + mov sp, r0
  167 + sub r0, r0, r1
  168 +
  169 +/*- Set up Interrupt Mode and set IRQ Mode Stack */
  170 + msr CPSR_c, #ARM_MODE_IRQ | I_BIT | F_BIT
  171 + mov sp, r0
  172 + sub r0, r0, r2
  173 +
  174 +/*- Enable interrupt & Set up Supervisor Mode and set Supervisor Mode Stack */
  175 + msr CPSR_c, #ARM_MODE_SVC | F_BIT
  176 + mov sp, r0
  177 +
  178 +/*------------------------------------------------------------------------------
  179 + *- Segments initialization
  180 + *------------------------------------------------------------------------------*/
  181 +/* Copy the data section in RAM at 0x0000 */
  182 +_init_data:
  183 + ldr r2, =_lp_data
  184 + ldmia r2, {r1, r3, r4}
  185 +1:
  186 + cmp r3, r4
  187 + ldrcc r2, [r1], #4
  188 + strcc r2, [r3], #4
  189 + bcc 1b
  190 +
  191 +/* Clear the bss segment */
  192 +_init_bss:
  193 + ldr r2, =_lp_bss
  194 + ldmia r2, {r3, r4}
  195 + mov r2, #0
  196 +1:
  197 + cmp r3, r4
  198 + strcc r2, [r3], #4
  199 + bcc 1b
  200 +
  201 +/*------------------------------------------------------------------------------
  202 + *- Branch to the main
  203 + *------------------------------------------------------------------------------*/
  204 +_branch_main:
  205 + ldr r0, =main
  206 + mov lr, pc
  207 + bx r0
  208 +
  209 +/*------------------------------------------------------------------------------
  210 + *- Litteral pools
  211 + *------------------------------------------------------------------------------*/
  212 +_lp_ll_init:
  213 + .word lowlevel_init
  214 + .word TOP_OF_MEMORY /* Default SVC stack after power up */
  215 +
  216 +_lp_stack_init:
  217 + .word TOP_OF_MEMORY /* Top of the stack */
  218 + .word ABT_STACK_SIZE /* ABT stack size */
  219 + .word IRQ_STACK_SIZE /* IRQ stack size */
  220 +
  221 +_lp_bss:
  222 + .word _sbss
  223 + .word _ebss
  224 +
  225 +_lp_data:
  226 + .word _etext
  227 + .word _sdata
  228 + .word _edata
  229 +
... ...
virtual_lab/gdbinit
  View file @0637b04
... ... @@ -3,7 +3,7 @@ ni
3 3 disass $pc,+16
4 4 end
5 5  
6   -define ssii
  6 +define ssi
7 7 si
8 8 disass $pc,+16
9 9 end
... ...
virtual_lab/include/AT91SAM9263-EK.h 0 → 100644
  View file @0637b04
  1 +/* ----------------------------------------------------------------------------
  2 + * ATMEL Microcontroller Software Support - ROUSSET -
  3 + * ----------------------------------------------------------------------------
  4 + * Copyright (c) 2006, Atmel Corporation
  5 + *
  6 + * All rights reserved.
  7 + *
  8 + * Redistribution and use in source and binary forms, with or without
  9 + * modification, are permitted provided that the following conditions are met:
  10 + *
  11 + * - Redistributions of source code must retain the above copyright notice,
  12 + * this list of conditions and the disclaiimer below.
  13 + *
  14 + * - Redistributions in binary form must reproduce the above copyright notice,
  15 + * this list of conditions and the disclaimer below in the documentation and/or
  16 + * other materials provided with the distribution.
  17 + *
  18 + * Atmel's name may not be used to endorse or promote products derived from
  19 + * this software without specific prior written permission.
  20 + *
  21 + * DISCLAIMER: THIS SOFTWARE IS PROVIDED BY ATMEL "AS IS" AND ANY EXPRESS OR
  22 + * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
  23 + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT ARE
  24 + * DISCLAIMED. IN NO EVENT SHALL ATMEL BE LIABLE FOR ANY DIRECT, INDIRECT,
  25 + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  26 + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,
  27 + * OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
  28 + * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
  29 + * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
  30 + * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  31 + * ----------------------------------------------------------------------------
  32 + */
  33 +/*-----------------------------------------------------------------------------
  34 + * File Name : AT91SAM9263-EK.h
  35 + * Object : AT91SAM9263-EK Evaluation Board Features Definition File
  36 + * Creation : FDy 10-Nov-2006
  37 + *-----------------------------------------------------------------------------
  38 + */
  39 +#ifndef AT91SAM9263_EK_H
  40 +#define AT91SAM9263_EK_H
  41 +
  42 +
  43 +/*-----------------*/
  44 +/* LEDs Definition */
  45 +/*-----------------*/
  46 +#define AT91B_LED1 AT91C_PIO_PB8 /* DS1 */
  47 +#define AT91B_LED2 AT91C_PIO_PC29 /* DS2 */
  48 +#define AT91B_NB_LEB 2
  49 +#define AT91D_BASE_PIO_LED1 (AT91C_BASE_PIOB)
  50 +#define AT91D_BASE_PIO_LED2 (AT91C_BASE_PIOC)
  51 +#define AT91D_ID_PIO_LED1 (AT91C_ID_PIOB)
  52 +#define AT91D_ID_PIO_LED2 (AT91C_ID_PIOC)
  53 +
  54 +/*-------------------------------*/
  55 +/* Push Button Definition */
  56 +/*-------------------------------*/
  57 +#define AT91B_BP1 AT91C_PIO_PC5 // Left click
  58 +#define AT91B_BP2 AT91C_PIO_PC4 // Right clic
  59 +#define AT91D_BASE_PIO_BP AT91C_BASE_PIOC
  60 +#define AT91D_ID_PIO_BP AT91C_ID_PIOCDE
  61 +
  62 +/*-------------------------------*/
  63 +/* Push Button Definition */
  64 +/*-------------------------------*/
  65 +#define AT91D_ID_TC AT91C_ID_TC012
  66 +
  67 +
  68 +
  69 +#define AT91B_DBGU_BAUD_RATE 115200
  70 +
  71 +/*---------------*/
  72 +/* SPI interface */
  73 +/*---------------*/
  74 +/* MN5 SERIAL DATAFLASH AT45DB642E
  75 + SPI Name : Port
  76 + SPI SCK PA14 / SPI_SPCK
  77 + CS PA11 / SPI_NPCS0
  78 + SO PA12 /SPI_MISO
  79 + SI PA13 /SPI_MOSI
  80 +*/
  81 +#define DATAFLASH_PERI Peripheral_A
  82 +#define DATAFLASH_SI AT91C_PA13_MOSI
  83 +#define DATAFLASH_SO AT91C_PA12_MISO
  84 +#define DATAFLASH_CS AT91C_PA11_NPCS0
  85 +#define DATAFLASH_SCK AT91C_PA14_SPCK
  86 +
  87 +/*---------------*/
  88 +/* Clocks */
  89 +/*--------------*/
  90 +#define AT91B_MAIN_OSC 16367660 // Main Oscillator MAINCK
  91 +#define AT91B_MCK ((16367660*110/9)/2) // Output PLLA Clock / 2 (~100 MHz)
  92 +#define AT91B_MASTER_CLOCK AT91B_MCK
  93 +#define AT91B_SLOW_CLOCK 32768
  94 +
  95 +
  96 +#endif /* AT91SAM9263-EK_H */
... ...