Tushar Sachdeva / FRDM_K64F_LCD

A simple 128x32 graphical LCD program to quickstart with LCD on ARM mbed IoT Starter Kit. This requires mbed Applciation Shield with FRDM-K64F platform.

Dependencies:   C12832

mbed/TARGET_KL43Z/TOOLCHAIN_GCC_ARM/MKL43Z4.ld@1:eb68c94a8ee5, 2015-04-12 (annotated)

Committer:
tushki7
Date:
Sun Apr 12 15:45:52 2015 +0000
Revision:
1:eb68c94a8ee5
Parent:
0:60d829a0353a 
A simple 128x32 LCD program with ARM mbed IoT Starter Kit;

Who changed what in which revision?

UserRevisionLine numberNew contents of line
tushki7 0:60d829a0353a 1 /*
tushki7 0:60d829a0353a 2 * KL43Z ARM GCC linker script file
tushki7 0:60d829a0353a 3 */
tushki7 0:60d829a0353a 4
tushki7 0:60d829a0353a 5 MEMORY
tushki7 0:60d829a0353a 6 {
tushki7 0:60d829a0353a 7 VECTORS (rx) : ORIGIN = 0x00000000, LENGTH = 0x00000400
tushki7 0:60d829a0353a 8 FLASH_PROTECTION (rx) : ORIGIN = 0x00000400, LENGTH = 0x00000010
tushki7 0:60d829a0353a 9 FLASH (rx) : ORIGIN = 0x00000410, LENGTH = 256K - 0x00000410
tushki7 0:60d829a0353a 10 RAM (rwx) : ORIGIN = 0x1FFFE0C0, LENGTH = 32K - 0xC0
tushki7 0:60d829a0353a 11 }
tushki7 0:60d829a0353a 12
tushki7 0:60d829a0353a 13 /* Linker script to place sections and symbol values. Should be used together
tushki7 0:60d829a0353a 14 * with other linker script that defines memory regions FLASH and RAM.
tushki7 0:60d829a0353a 15 * It references following symbols, which must be defined in code:
tushki7 0:60d829a0353a 16 * _reset_init : Entry of reset handler
tushki7 0:60d829a0353a 17 *
tushki7 0:60d829a0353a 18 * It defines following symbols, which code can use without definition:
tushki7 0:60d829a0353a 19 * __exidx_start
tushki7 0:60d829a0353a 20 * __exidx_end
tushki7 0:60d829a0353a 21 * __etext
tushki7 0:60d829a0353a 22 * __data_start__
tushki7 0:60d829a0353a 23 * __preinit_array_start
tushki7 0:60d829a0353a 24 * __preinit_array_end
tushki7 0:60d829a0353a 25 * __init_array_start
tushki7 0:60d829a0353a 26 * __init_array_end
tushki7 0:60d829a0353a 27 * __fini_array_start
tushki7 0:60d829a0353a 28 * __fini_array_end
tushki7 0:60d829a0353a 29 * __data_end__
tushki7 0:60d829a0353a 30 * __bss_start__
tushki7 0:60d829a0353a 31 * __bss_end__
tushki7 0:60d829a0353a 32 * __end__
tushki7 0:60d829a0353a 33 * end
tushki7 0:60d829a0353a 34 * __HeapLimit
tushki7 0:60d829a0353a 35 * __StackLimit
tushki7 0:60d829a0353a 36 * __StackTop
tushki7 0:60d829a0353a 37 * __stack
tushki7 0:60d829a0353a 38 */
tushki7 0:60d829a0353a 39 ENTRY(Reset_Handler)
tushki7 0:60d829a0353a 40
tushki7 0:60d829a0353a 41 SECTIONS
tushki7 0:60d829a0353a 42 {
tushki7 0:60d829a0353a 43 .isr_vector :
tushki7 0:60d829a0353a 44 {
tushki7 0:60d829a0353a 45 __vector_table = .;
tushki7 0:60d829a0353a 46 KEEP(*(.vector_table))
tushki7 0:60d829a0353a 47 *(.text.Reset_Handler)
tushki7 0:60d829a0353a 48 *(.text.System_Init)
tushki7 0:60d829a0353a 49 . = ALIGN(4);
tushki7 0:60d829a0353a 50 } > VECTORS
tushki7 0:60d829a0353a 51
tushki7 0:60d829a0353a 52 .flash_protect :
tushki7 0:60d829a0353a 53 {
tushki7 0:60d829a0353a 54 KEEP(*(.kinetis_flash_config_field))
tushki7 0:60d829a0353a 55 . = ALIGN(4);
tushki7 0:60d829a0353a 56 } > FLASH_PROTECTION
tushki7 0:60d829a0353a 57
tushki7 0:60d829a0353a 58 .text :
tushki7 0:60d829a0353a 59 {
tushki7 0:60d829a0353a 60 *(.text*)
tushki7 0:60d829a0353a 61
tushki7 0:60d829a0353a 62 KEEP(*(.init))
tushki7 0:60d829a0353a 63 KEEP(*(.fini))
tushki7 0:60d829a0353a 64
tushki7 0:60d829a0353a 65 /* .ctors */
tushki7 0:60d829a0353a 66 *crtbegin.o(.ctors)
tushki7 0:60d829a0353a 67 *crtbegin?.o(.ctors)
tushki7 0:60d829a0353a 68 *(EXCLUDE_FILE(*crtend?.o *crtend.o) .ctors)
tushki7 0:60d829a0353a 69 *(SORT(.ctors.*))
tushki7 0:60d829a0353a 70 *(.ctors)
tushki7 0:60d829a0353a 71
tushki7 0:60d829a0353a 72 /* .dtors */
tushki7 0:60d829a0353a 73 *crtbegin.o(.dtors)
tushki7 0:60d829a0353a 74 *crtbegin?.o(.dtors)
tushki7 0:60d829a0353a 75 *(EXCLUDE_FILE(*crtend?.o *crtend.o) .dtors)
tushki7 0:60d829a0353a 76 *(SORT(.dtors.*))
tushki7 0:60d829a0353a 77 *(.dtors)
tushki7 0:60d829a0353a 78
tushki7 0:60d829a0353a 79 *(.rodata*)
tushki7 0:60d829a0353a 80
tushki7 0:60d829a0353a 81 KEEP(*(.eh_frame*))
tushki7 0:60d829a0353a 82 } > FLASH
tushki7 0:60d829a0353a 83
tushki7 0:60d829a0353a 84 .ARM.extab :
tushki7 0:60d829a0353a 85 {
tushki7 0:60d829a0353a 86 *(.ARM.extab* .gnu.linkonce.armextab.*)
tushki7 0:60d829a0353a 87 } > FLASH
tushki7 0:60d829a0353a 88
tushki7 0:60d829a0353a 89 __exidx_start = .;
tushki7 0:60d829a0353a 90 .ARM.exidx :
tushki7 0:60d829a0353a 91 {
tushki7 0:60d829a0353a 92 *(.ARM.exidx* .gnu.linkonce.armexidx.*)
tushki7 0:60d829a0353a 93 } > FLASH
tushki7 0:60d829a0353a 94 __exidx_end = .;
tushki7 0:60d829a0353a 95
tushki7 0:60d829a0353a 96 __etext = .;
tushki7 0:60d829a0353a 97
tushki7 0:60d829a0353a 98 .data : AT (__etext)
tushki7 0:60d829a0353a 99 {
tushki7 0:60d829a0353a 100 __data_start__ = .;
tushki7 0:60d829a0353a 101 *(vtable)
tushki7 0:60d829a0353a 102 *(.data*)
tushki7 0:60d829a0353a 103
tushki7 0:60d829a0353a 104 . = ALIGN(4);
tushki7 0:60d829a0353a 105 /* preinit data */
tushki7 0:60d829a0353a 106 PROVIDE_HIDDEN (__preinit_array_start = .);
tushki7 0:60d829a0353a 107 KEEP(*(.preinit_array))
tushki7 0:60d829a0353a 108 PROVIDE_HIDDEN (__preinit_array_end = .);
tushki7 0:60d829a0353a 109
tushki7 0:60d829a0353a 110 . = ALIGN(4);
tushki7 0:60d829a0353a 111 /* init data */
tushki7 0:60d829a0353a 112 PROVIDE_HIDDEN (__init_array_start = .);
tushki7 0:60d829a0353a 113 KEEP(*(SORT(.init_array.*)))
tushki7 0:60d829a0353a 114 KEEP(*(.init_array))
tushki7 0:60d829a0353a 115 PROVIDE_HIDDEN (__init_array_end = .);
tushki7 0:60d829a0353a 116
tushki7 0:60d829a0353a 117
tushki7 0:60d829a0353a 118 . = ALIGN(4);
tushki7 0:60d829a0353a 119 /* finit data */
tushki7 0:60d829a0353a 120 PROVIDE_HIDDEN (__fini_array_start = .);
tushki7 0:60d829a0353a 121 KEEP(*(SORT(.fini_array.*)))
tushki7 0:60d829a0353a 122 KEEP(*(.fini_array))
tushki7 0:60d829a0353a 123 PROVIDE_HIDDEN (__fini_array_end = .);
tushki7 0:60d829a0353a 124
tushki7 0:60d829a0353a 125 . = ALIGN(4);
tushki7 0:60d829a0353a 126 /* All data end */
tushki7 0:60d829a0353a 127 __data_end__ = .;
tushki7 0:60d829a0353a 128
tushki7 0:60d829a0353a 129 } > RAM
tushki7 0:60d829a0353a 130
tushki7 0:60d829a0353a 131 .bss :
tushki7 0:60d829a0353a 132 {
tushki7 0:60d829a0353a 133 __bss_start__ = .;
tushki7 0:60d829a0353a 134 *(.bss*)
tushki7 0:60d829a0353a 135 *(COMMON)
tushki7 0:60d829a0353a 136 __bss_end__ = .;
tushki7 0:60d829a0353a 137 } > RAM
tushki7 0:60d829a0353a 138
tushki7 0:60d829a0353a 139 .heap :
tushki7 0:60d829a0353a 140 {
tushki7 0:60d829a0353a 141 __end__ = .;
tushki7 0:60d829a0353a 142 end = __end__;
tushki7 0:60d829a0353a 143 *(.heap*)
tushki7 0:60d829a0353a 144 __HeapLimit = .;
tushki7 0:60d829a0353a 145 } > RAM
tushki7 0:60d829a0353a 146
tushki7 0:60d829a0353a 147 /* .stack_dummy section doesn't contains any symbols. It is only
tushki7 0:60d829a0353a 148 * used for linker to calculate size of stack sections, and assign
tushki7 0:60d829a0353a 149 * values to stack symbols later */
tushki7 0:60d829a0353a 150 .stack_dummy :
tushki7 0:60d829a0353a 151 {
tushki7 0:60d829a0353a 152 *(.stack)
tushki7 0:60d829a0353a 153 } > RAM
tushki7 0:60d829a0353a 154
tushki7 0:60d829a0353a 155 /* Set stack top to end of RAM, and stack limit move down by
tushki7 0:60d829a0353a 156 * size of stack_dummy section */
tushki7 0:60d829a0353a 157 __StackTop = ORIGIN(RAM) + LENGTH(RAM);
tushki7 0:60d829a0353a 158 __StackLimit = __StackTop - SIZEOF(.stack_dummy);
tushki7 0:60d829a0353a 159 PROVIDE(__stack = __StackTop);
tushki7 0:60d829a0353a 160
tushki7 0:60d829a0353a 161 /* Check if data + heap + stack exceeds RAM limit */
tushki7 0:60d829a0353a 162 ASSERT(__StackLimit >= __HeapLimit, "region RAM overflowed with stack")
tushki7 0:60d829a0353a 163 }