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_LPC1549/TOOLCHAIN_GCC_ARM/LPC1549.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 /* Linker script for mbed LPC1549 */
tushki7 0:60d829a0353a 2
tushki7 0:60d829a0353a 3 /* Linker script to configure memory regions. */
tushki7 0:60d829a0353a 4 MEMORY
tushki7 0:60d829a0353a 5 {
tushki7 0:60d829a0353a 6 /* Define each memory region */
tushki7 0:60d829a0353a 7 FLASH (rx) : ORIGIN = 0x00000000, LENGTH = 256K
tushki7 0:60d829a0353a 8 Ram0_16 (rwx) : ORIGIN = 0x2000000 + 0x100, LENGTH = (16K - 0x100)
tushki7 0:60d829a0353a 9 Ram1_16 (rwx) : ORIGIN = 0x2004000, LENGTH = 16K
tushki7 0:60d829a0353a 10 Ram2_4 (rwx) : ORIGIN = 0x2008000, LENGTH = 4K
tushki7 0:60d829a0353a 11
tushki7 0:60d829a0353a 12 }
tushki7 0:60d829a0353a 13
tushki7 0:60d829a0353a 14 /* Linker script to place sections and symbol values. Should be used together
tushki7 0:60d829a0353a 15 * with other linker script that defines memory regions FLASH and RAM.
tushki7 0:60d829a0353a 16 * It references following symbols, which must be defined in code:
tushki7 0:60d829a0353a 17 * Reset_Handler : Entry of reset handler
tushki7 0:60d829a0353a 18 *
tushki7 0:60d829a0353a 19 * It defines following symbols, which code can use without definition:
tushki7 0:60d829a0353a 20 * __exidx_start
tushki7 0:60d829a0353a 21 * __exidx_end
tushki7 0:60d829a0353a 22 * __etext
tushki7 0:60d829a0353a 23 * __data_start__
tushki7 0:60d829a0353a 24 * __preinit_array_start
tushki7 0:60d829a0353a 25 * __preinit_array_end
tushki7 0:60d829a0353a 26 * __init_array_start
tushki7 0:60d829a0353a 27 * __init_array_end
tushki7 0:60d829a0353a 28 * __fini_array_start
tushki7 0:60d829a0353a 29 * __fini_array_end
tushki7 0:60d829a0353a 30 * __data_end__
tushki7 0:60d829a0353a 31 * __bss_start__
tushki7 0:60d829a0353a 32 * __bss_end__
tushki7 0:60d829a0353a 33 * __end__
tushki7 0:60d829a0353a 34 * end
tushki7 0:60d829a0353a 35 * __HeapLimit
tushki7 0:60d829a0353a 36 * __StackLimit
tushki7 0:60d829a0353a 37 * __StackTop
tushki7 0:60d829a0353a 38 * __stack
tushki7 0:60d829a0353a 39 */
tushki7 0:60d829a0353a 40 ENTRY(Reset_Handler)
tushki7 0:60d829a0353a 41
tushki7 0:60d829a0353a 42 SECTIONS
tushki7 0:60d829a0353a 43 {
tushki7 0:60d829a0353a 44 .text :
tushki7 0:60d829a0353a 45 {
tushki7 0:60d829a0353a 46 KEEP(*(.isr_vector))
tushki7 0:60d829a0353a 47 *(.text*)
tushki7 0:60d829a0353a 48
tushki7 0:60d829a0353a 49 KEEP(*(.init))
tushki7 0:60d829a0353a 50 KEEP(*(.fini))
tushki7 0:60d829a0353a 51
tushki7 0:60d829a0353a 52 /* .ctors */
tushki7 0:60d829a0353a 53 *crtbegin.o(.ctors)
tushki7 0:60d829a0353a 54 *crtbegin?.o(.ctors)
tushki7 0:60d829a0353a 55 *(EXCLUDE_FILE(*crtend?.o *crtend.o) .ctors)
tushki7 0:60d829a0353a 56 *(SORT(.ctors.*))
tushki7 0:60d829a0353a 57 *(.ctors)
tushki7 0:60d829a0353a 58
tushki7 0:60d829a0353a 59 /* .dtors */
tushki7 0:60d829a0353a 60 *crtbegin.o(.dtors)
tushki7 0:60d829a0353a 61 *crtbegin?.o(.dtors)
tushki7 0:60d829a0353a 62 *(EXCLUDE_FILE(*crtend?.o *crtend.o) .dtors)
tushki7 0:60d829a0353a 63 *(SORT(.dtors.*))
tushki7 0:60d829a0353a 64 *(.dtors)
tushki7 0:60d829a0353a 65
tushki7 0:60d829a0353a 66 *(.rodata*)
tushki7 0:60d829a0353a 67
tushki7 0:60d829a0353a 68 KEEP(*(.eh_frame*))
tushki7 0:60d829a0353a 69 } > FLASH
tushki7 0:60d829a0353a 70
tushki7 0:60d829a0353a 71 .ARM.extab :
tushki7 0:60d829a0353a 72 {
tushki7 0:60d829a0353a 73 *(.ARM.extab* .gnu.linkonce.armextab.*)
tushki7 0:60d829a0353a 74 } > FLASH
tushki7 0:60d829a0353a 75
tushki7 0:60d829a0353a 76 __exidx_start = .;
tushki7 0:60d829a0353a 77 .ARM.exidx :
tushki7 0:60d829a0353a 78 {
tushki7 0:60d829a0353a 79 *(.ARM.exidx* .gnu.linkonce.armexidx.*)
tushki7 0:60d829a0353a 80 } > FLASH
tushki7 0:60d829a0353a 81 __exidx_end = .;
tushki7 0:60d829a0353a 82
tushki7 0:60d829a0353a 83 __etext = .;
tushki7 0:60d829a0353a 84
tushki7 0:60d829a0353a 85 .data : AT (__etext)
tushki7 0:60d829a0353a 86 {
tushki7 0:60d829a0353a 87 __data_start__ = .;
tushki7 0:60d829a0353a 88 Image$$RW_IRAM1$$Base = .;
tushki7 0:60d829a0353a 89 *(vtable)
tushki7 0:60d829a0353a 90 *(.data*)
tushki7 0:60d829a0353a 91
tushki7 0:60d829a0353a 92 . = ALIGN(4);
tushki7 0:60d829a0353a 93 /* preinit data */
tushki7 0:60d829a0353a 94 PROVIDE (__preinit_array_start = .);
tushki7 0:60d829a0353a 95 KEEP(*(.preinit_array))
tushki7 0:60d829a0353a 96 PROVIDE (__preinit_array_end = .);
tushki7 0:60d829a0353a 97
tushki7 0:60d829a0353a 98 . = ALIGN(4);
tushki7 0:60d829a0353a 99 /* init data */
tushki7 0:60d829a0353a 100 PROVIDE (__init_array_start = .);
tushki7 0:60d829a0353a 101 KEEP(*(SORT(.init_array.*)))
tushki7 0:60d829a0353a 102 KEEP(*(.init_array))
tushki7 0:60d829a0353a 103 PROVIDE (__init_array_end = .);
tushki7 0:60d829a0353a 104
tushki7 0:60d829a0353a 105
tushki7 0:60d829a0353a 106 . = ALIGN(4);
tushki7 0:60d829a0353a 107 /* finit data */
tushki7 0:60d829a0353a 108 PROVIDE (__fini_array_start = .);
tushki7 0:60d829a0353a 109 KEEP(*(SORT(.fini_array.*)))
tushki7 0:60d829a0353a 110 KEEP(*(.fini_array))
tushki7 0:60d829a0353a 111 PROVIDE (__fini_array_end = .);
tushki7 0:60d829a0353a 112
tushki7 0:60d829a0353a 113 . = ALIGN(4);
tushki7 0:60d829a0353a 114 /* All data end */
tushki7 0:60d829a0353a 115 __data_end__ = .;
tushki7 0:60d829a0353a 116
tushki7 0:60d829a0353a 117 } > Ram0_16
tushki7 0:60d829a0353a 118
tushki7 0:60d829a0353a 119
tushki7 0:60d829a0353a 120 .bss :
tushki7 0:60d829a0353a 121 {
tushki7 0:60d829a0353a 122 __bss_start__ = .;
tushki7 0:60d829a0353a 123 *(.bss*)
tushki7 0:60d829a0353a 124 *(COMMON)
tushki7 0:60d829a0353a 125 __bss_end__ = .;
tushki7 0:60d829a0353a 126 Image$$RW_IRAM1$$ZI$$Limit = . ;
tushki7 0:60d829a0353a 127 } > Ram0_16
tushki7 0:60d829a0353a 128
tushki7 0:60d829a0353a 129
tushki7 0:60d829a0353a 130 .heap :
tushki7 0:60d829a0353a 131 {
tushki7 0:60d829a0353a 132 __end__ = .;
tushki7 0:60d829a0353a 133 end = __end__;
tushki7 0:60d829a0353a 134 *(.heap*)
tushki7 0:60d829a0353a 135 __HeapLimit = .;
tushki7 0:60d829a0353a 136 } > Ram0_16
tushki7 0:60d829a0353a 137
tushki7 0:60d829a0353a 138 /* .stack_dummy section doesn't contains any symbols. It is only
tushki7 0:60d829a0353a 139 * used for linker to calculate size of stack sections, and assign
tushki7 0:60d829a0353a 140 * values to stack symbols later */
tushki7 0:60d829a0353a 141 .stack_dummy :
tushki7 0:60d829a0353a 142 {
tushki7 0:60d829a0353a 143 *(.stack)
tushki7 0:60d829a0353a 144 } > Ram0_16
tushki7 0:60d829a0353a 145
tushki7 0:60d829a0353a 146 /* Set stack top to end of RAM, and stack limit move down by
tushki7 0:60d829a0353a 147 * size of stack_dummy section */
tushki7 0:60d829a0353a 148 __StackTop = ORIGIN(Ram0_16) + LENGTH(Ram0_16);
tushki7 0:60d829a0353a 149 __StackLimit = __StackTop - SIZEOF(.stack_dummy);
tushki7 0:60d829a0353a 150 PROVIDE(__stack = __StackTop);
tushki7 0:60d829a0353a 151
tushki7 0:60d829a0353a 152 /* Check if data + heap + stack exceeds RAM limit */
tushki7 0:60d829a0353a 153 ASSERT(__StackLimit >= __HeapLimit, "region RAM overflowed with stack")
tushki7 0:60d829a0353a 154 }