Johannes Stratmann / mbed-dev

added prescaler for 16 bit pwm in LPC1347 target

Fork of mbed-dev by mbed official

targets/cmsis/TARGET_NXP/TARGET_LPC176X/TOOLCHAIN_GCC_CS/LPC1768.ld@147:ba84b7dc41a7, 2016-09-10 (annotated)

Committer:
JojoS
Date:
Sat Sep 10 15:32:04 2016 +0000
Revision:
147:ba84b7dc41a7
Parent:
144:ef7eb2e8f9f7 
added prescaler for 16 bit timers (solution as in LPC11xx), default prescaler 31 for max 28 ms period time

Who changed what in which revision?

UserRevisionLine numberNew contents of line
<> 144:ef7eb2e8f9f7 1 /* Linker script for mbed LPC1768
<> 144:ef7eb2e8f9f7 2 *
<> 144:ef7eb2e8f9f7 3 * Version:CodeSourcery Sourcery G++ Lite 2007q3-53
<> 144:ef7eb2e8f9f7 4 * BugURL:https://support.codesourcery.com/GNUToolchain/
<> 144:ef7eb2e8f9f7 5 *
<> 144:ef7eb2e8f9f7 6 * Copyright 2007 CodeSourcery.
<> 144:ef7eb2e8f9f7 7 *
<> 144:ef7eb2e8f9f7 8 * The authors hereby grant permission to use, copy, modify, distribute,
<> 144:ef7eb2e8f9f7 9 * and license this software and its documentation for any purpose, provided
<> 144:ef7eb2e8f9f7 10 * that existing copyright notices are retained in all copies and that this
<> 144:ef7eb2e8f9f7 11 * notice is included verbatim in any distributions. No written agreement,
<> 144:ef7eb2e8f9f7 12 * license, or royalty fee is required for any of the authorized uses.
<> 144:ef7eb2e8f9f7 13 * Modifications to this software may be copyrighted by their authors
<> 144:ef7eb2e8f9f7 14 * and need not follow the licensing terms described here, provided that
<> 144:ef7eb2e8f9f7 15 * the new terms are clearly indicated on the first page of each file where
<> 144:ef7eb2e8f9f7 16 * they apply. */
<> 144:ef7eb2e8f9f7 17 OUTPUT_FORMAT ("elf32-littlearm", "elf32-bigarm", "elf32-littlearm")
<> 144:ef7eb2e8f9f7 18 ENTRY(__cs3_reset_cortex_m)
<> 144:ef7eb2e8f9f7 19 SEARCH_DIR(.)
<> 144:ef7eb2e8f9f7 20
<> 144:ef7eb2e8f9f7 21 /*
<> 144:ef7eb2e8f9f7 22 ram ORIGIN: 8_byte_aligned(49 vect * 4 bytes) = 8_byte_aligned(0xC4) = 0xC8
<> 144:ef7eb2e8f9f7 23 ram LENGTH: 32KB - 0xC8 = 0x7F38
<> 144:ef7eb2e8f9f7 24 */
<> 144:ef7eb2e8f9f7 25 MEMORY
<> 144:ef7eb2e8f9f7 26 {
<> 144:ef7eb2e8f9f7 27 rom (rx) : ORIGIN = 0x00000000, LENGTH = 512K
<> 144:ef7eb2e8f9f7 28
<> 144:ef7eb2e8f9f7 29 ram (rwx) : ORIGIN = 0x100000C8, LENGTH = 0x7F38
<> 144:ef7eb2e8f9f7 30
<> 144:ef7eb2e8f9f7 31 ram1(rwx) : ORIGIN = 0x2007C000, LENGTH = 16K
<> 144:ef7eb2e8f9f7 32 ram2(rwx) : ORIGIN = 0x20080000, LENGTH = 16K
<> 144:ef7eb2e8f9f7 33 }
<> 144:ef7eb2e8f9f7 34
<> 144:ef7eb2e8f9f7 35 /* These force the linker to search for particular symbols from
<> 144:ef7eb2e8f9f7 36 * the start of the link process and thus ensure the user's
<> 144:ef7eb2e8f9f7 37 * overrides are picked up
<> 144:ef7eb2e8f9f7 38 */
<> 144:ef7eb2e8f9f7 39 EXTERN(__cs3_reset_cortex_m)
<> 144:ef7eb2e8f9f7 40 EXTERN(__cs3_interrupt_vector_cortex_m)
<> 144:ef7eb2e8f9f7 41 EXTERN(__cs3_start_c main __cs3_stack __cs3_stack_size __cs3_heap_end)
<> 144:ef7eb2e8f9f7 42
<> 144:ef7eb2e8f9f7 43 PROVIDE(__cs3_stack = __cs3_region_start_ram + __cs3_region_size_ram);
<> 144:ef7eb2e8f9f7 44 PROVIDE(__cs3_stack_size = __cs3_region_start_ram + __cs3_region_size_ram - _end);
<> 144:ef7eb2e8f9f7 45 PROVIDE(__cs3_heap_start = _end);
<> 144:ef7eb2e8f9f7 46 PROVIDE(__cs3_heap_end = __cs3_region_start_ram + __cs3_region_size_ram);
<> 144:ef7eb2e8f9f7 47
<> 144:ef7eb2e8f9f7 48 SECTIONS
<> 144:ef7eb2e8f9f7 49 {
<> 144:ef7eb2e8f9f7 50 .text :
<> 144:ef7eb2e8f9f7 51 {
<> 144:ef7eb2e8f9f7 52 CREATE_OBJECT_SYMBOLS
<> 144:ef7eb2e8f9f7 53 __cs3_region_start_rom = .;
<> 144:ef7eb2e8f9f7 54 *(.cs3.region-head.rom)
<> 144:ef7eb2e8f9f7 55 __cs3_interrupt_vector = __cs3_interrupt_vector_cortex_m;
<> 144:ef7eb2e8f9f7 56 *(.cs3.interrupt_vector)
<> 144:ef7eb2e8f9f7 57 /* Make sure we pulled in an interrupt vector. */
<> 144:ef7eb2e8f9f7 58 ASSERT (. != __cs3_interrupt_vector_cortex_m, "No interrupt vector");
<> 144:ef7eb2e8f9f7 59 *(.rom)
<> 144:ef7eb2e8f9f7 60 *(.rom.b)
<> 144:ef7eb2e8f9f7 61
<> 144:ef7eb2e8f9f7 62 __cs3_reset = __cs3_reset_cortex_m;
<> 144:ef7eb2e8f9f7 63 *(.cs3.reset)
<> 144:ef7eb2e8f9f7 64 /* Make sure we pulled in some reset code. */
<> 144:ef7eb2e8f9f7 65 ASSERT (. != __cs3_reset, "No reset code");
<> 144:ef7eb2e8f9f7 66
<> 144:ef7eb2e8f9f7 67 *(.text .text.* .gnu.linkonce.t.*)
<> 144:ef7eb2e8f9f7 68 *(.plt)
<> 144:ef7eb2e8f9f7 69 *(.gnu.warning)
<> 144:ef7eb2e8f9f7 70 *(.glue_7t) *(.glue_7) *(.vfp11_veneer)
<> 144:ef7eb2e8f9f7 71
<> 144:ef7eb2e8f9f7 72 *(.rodata .rodata.* .gnu.linkonce.r.*)
<> 144:ef7eb2e8f9f7 73
<> 144:ef7eb2e8f9f7 74 *(.ARM.extab* .gnu.linkonce.armextab.*)
<> 144:ef7eb2e8f9f7 75 *(.gcc_except_table)
<> 144:ef7eb2e8f9f7 76 *(.eh_frame_hdr)
<> 144:ef7eb2e8f9f7 77 *(.eh_frame)
<> 144:ef7eb2e8f9f7 78
<> 144:ef7eb2e8f9f7 79 . = ALIGN(4);
<> 144:ef7eb2e8f9f7 80 KEEP(*(.init))
<> 144:ef7eb2e8f9f7 81
<> 144:ef7eb2e8f9f7 82 . = ALIGN(4);
<> 144:ef7eb2e8f9f7 83 __preinit_array_start = .;
<> 144:ef7eb2e8f9f7 84 KEEP (*(.preinit_array))
<> 144:ef7eb2e8f9f7 85 __preinit_array_end = .;
<> 144:ef7eb2e8f9f7 86
<> 144:ef7eb2e8f9f7 87 . = ALIGN(4);
<> 144:ef7eb2e8f9f7 88 __init_array_start = .;
<> 144:ef7eb2e8f9f7 89 KEEP (*(SORT(.init_array.*)))
<> 144:ef7eb2e8f9f7 90 KEEP (*(.init_array))
<> 144:ef7eb2e8f9f7 91 __init_array_end = .;
<> 144:ef7eb2e8f9f7 92
<> 144:ef7eb2e8f9f7 93 . = ALIGN(0x4);
<> 144:ef7eb2e8f9f7 94 KEEP (*crtbegin.o(.ctors))
<> 144:ef7eb2e8f9f7 95 KEEP (*(EXCLUDE_FILE (*crtend.o) .ctors))
<> 144:ef7eb2e8f9f7 96 KEEP (*(SORT(.ctors.*)))
<> 144:ef7eb2e8f9f7 97 KEEP (*crtend.o(.ctors))
<> 144:ef7eb2e8f9f7 98
<> 144:ef7eb2e8f9f7 99 . = ALIGN(4);
<> 144:ef7eb2e8f9f7 100 KEEP(*(.fini))
<> 144:ef7eb2e8f9f7 101
<> 144:ef7eb2e8f9f7 102 . = ALIGN(4);
<> 144:ef7eb2e8f9f7 103 __fini_array_start = .;
<> 144:ef7eb2e8f9f7 104 KEEP (*(.fini_array))
<> 144:ef7eb2e8f9f7 105 KEEP (*(SORT(.fini_array.*)))
<> 144:ef7eb2e8f9f7 106 __fini_array_end = .;
<> 144:ef7eb2e8f9f7 107
<> 144:ef7eb2e8f9f7 108 KEEP (*crtbegin.o(.dtors))
<> 144:ef7eb2e8f9f7 109 KEEP (*(EXCLUDE_FILE (*crtend.o) .dtors))
<> 144:ef7eb2e8f9f7 110 KEEP (*(SORT(.dtors.*)))
<> 144:ef7eb2e8f9f7 111 KEEP (*crtend.o(.dtors))
<> 144:ef7eb2e8f9f7 112
<> 144:ef7eb2e8f9f7 113 . = ALIGN(4);
<> 144:ef7eb2e8f9f7 114 __cs3_regions = .;
<> 144:ef7eb2e8f9f7 115 LONG (0)
<> 144:ef7eb2e8f9f7 116 LONG (__cs3_region_init_ram)
<> 144:ef7eb2e8f9f7 117 LONG (__cs3_region_start_ram)
<> 144:ef7eb2e8f9f7 118 LONG (__cs3_region_init_size_ram)
<> 144:ef7eb2e8f9f7 119 LONG (__cs3_region_zero_size_ram)
<> 144:ef7eb2e8f9f7 120 }
<> 144:ef7eb2e8f9f7 121
<> 144:ef7eb2e8f9f7 122 /* .ARM.exidx is sorted, so has to go in its own output section. */
<> 144:ef7eb2e8f9f7 123 __exidx_start = .;
<> 144:ef7eb2e8f9f7 124 .ARM.exidx :
<> 144:ef7eb2e8f9f7 125 {
<> 144:ef7eb2e8f9f7 126 *(.ARM.exidx* .gnu.linkonce.armexidx.*)
<> 144:ef7eb2e8f9f7 127 } >rom
<> 144:ef7eb2e8f9f7 128 __exidx_end = .;
<> 144:ef7eb2e8f9f7 129 .text.align :
<> 144:ef7eb2e8f9f7 130 {
<> 144:ef7eb2e8f9f7 131 . = ALIGN(8);
<> 144:ef7eb2e8f9f7 132 _etext = .;
<> 144:ef7eb2e8f9f7 133 } >rom
<> 144:ef7eb2e8f9f7 134 __cs3_region_size_rom = LENGTH(rom);
<> 144:ef7eb2e8f9f7 135 __cs3_region_num = 1;
<> 144:ef7eb2e8f9f7 136
<> 144:ef7eb2e8f9f7 137 .data :
<> 144:ef7eb2e8f9f7 138 {
<> 144:ef7eb2e8f9f7 139 __cs3_region_start_ram = .;
<> 144:ef7eb2e8f9f7 140 *(.cs3.region-head.ram)
<> 144:ef7eb2e8f9f7 141 KEEP(*(.jcr))
<> 144:ef7eb2e8f9f7 142 *(.got.plt) *(.got)
<> 144:ef7eb2e8f9f7 143 *(.shdata)
<> 144:ef7eb2e8f9f7 144 *(.data .data.* .gnu.linkonce.d.*)
<> 144:ef7eb2e8f9f7 145 *(.ram)
<> 144:ef7eb2e8f9f7 146 . = ALIGN (8);
<> 144:ef7eb2e8f9f7 147 _edata = .;
<> 144:ef7eb2e8f9f7 148 } >ram AT>rom
<> 144:ef7eb2e8f9f7 149 .bss :
<> 144:ef7eb2e8f9f7 150 {
<> 144:ef7eb2e8f9f7 151 *(.shbss)
<> 144:ef7eb2e8f9f7 152 *(.bss .bss.* .gnu.linkonce.b.*)
<> 144:ef7eb2e8f9f7 153 *(COMMON)
<> 144:ef7eb2e8f9f7 154 *(.ram.b)
<> 144:ef7eb2e8f9f7 155 . = ALIGN (8);
<> 144:ef7eb2e8f9f7 156 _end = .;
<> 144:ef7eb2e8f9f7 157 __end = .;
<> 144:ef7eb2e8f9f7 158 } >ram AT>rom
<> 144:ef7eb2e8f9f7 159 /* This used for USB RAM section */
<> 144:ef7eb2e8f9f7 160 .usb_ram (NOLOAD):
<> 144:ef7eb2e8f9f7 161 {
<> 144:ef7eb2e8f9f7 162 *.o (USB_RAM)
<> 144:ef7eb2e8f9f7 163 } > ram2
<> 144:ef7eb2e8f9f7 164 .heap (NOLOAD) :
<> 144:ef7eb2e8f9f7 165 {
<> 144:ef7eb2e8f9f7 166 *(.heap)
<> 144:ef7eb2e8f9f7 167 } >ram
<> 144:ef7eb2e8f9f7 168 .stack (__cs3_stack - __cs3_stack_size) (NOLOAD):
<> 144:ef7eb2e8f9f7 169 {
<> 144:ef7eb2e8f9f7 170 *(.stack)
<> 144:ef7eb2e8f9f7 171 _estack = .;
<> 144:ef7eb2e8f9f7 172 PROVIDE(estack = .);
<> 144:ef7eb2e8f9f7 173 } >ram
<> 144:ef7eb2e8f9f7 174
<> 144:ef7eb2e8f9f7 175 __cs3_region_init_ram = LOADADDR (.data);
<> 144:ef7eb2e8f9f7 176 __cs3_region_init_size_ram = _edata - __cs3_region_start_ram;
<> 144:ef7eb2e8f9f7 177 __cs3_region_zero_size_ram = _end - _edata;
<> 144:ef7eb2e8f9f7 178 __cs3_region_size_ram = LENGTH(ram);
<> 144:ef7eb2e8f9f7 179 __cs3_region_num = 1;
<> 144:ef7eb2e8f9f7 180
<> 144:ef7eb2e8f9f7 181 .stab 0 (NOLOAD) : { *(.stab) }
<> 144:ef7eb2e8f9f7 182 .stabstr 0 (NOLOAD) : { *(.stabstr) }
<> 144:ef7eb2e8f9f7 183 /* DWARF debug sections.
<> 144:ef7eb2e8f9f7 184 * Symbols in the DWARF debugging sections are relative to the beginning
<> 144:ef7eb2e8f9f7 185 * of the section so we begin them at 0. */
<> 144:ef7eb2e8f9f7 186 /* DWARF 1 */
<> 144:ef7eb2e8f9f7 187 .debug 0 : { *(.debug) }
<> 144:ef7eb2e8f9f7 188 .line 0 : { *(.line) }
<> 144:ef7eb2e8f9f7 189 /* GNU DWARF 1 extensions */
<> 144:ef7eb2e8f9f7 190 .debug_srcinfo 0 : { *(.debug_srcinfo) }
<> 144:ef7eb2e8f9f7 191 .debug_sfnames 0 : { *(.debug_sfnames) }
<> 144:ef7eb2e8f9f7 192 /* DWARF 1.1 and DWARF 2 */
<> 144:ef7eb2e8f9f7 193 .debug_aranges 0 : { *(.debug_aranges) }
<> 144:ef7eb2e8f9f7 194 .debug_pubnames 0 : { *(.debug_pubnames) }
<> 144:ef7eb2e8f9f7 195 /* DWARF 2 */
<> 144:ef7eb2e8f9f7 196 .debug_info 0 : { *(.debug_info .gnu.linkonce.wi.*) }
<> 144:ef7eb2e8f9f7 197 .debug_abbrev 0 : { *(.debug_abbrev) }
<> 144:ef7eb2e8f9f7 198 .debug_line 0 : { *(.debug_line) }
<> 144:ef7eb2e8f9f7 199 .debug_frame 0 : { *(.debug_frame) }
<> 144:ef7eb2e8f9f7 200 .debug_str 0 : { *(.debug_str) }
<> 144:ef7eb2e8f9f7 201 .debug_loc 0 : { *(.debug_loc) }
<> 144:ef7eb2e8f9f7 202 .debug_macinfo 0 : { *(.debug_macinfo) }
<> 144:ef7eb2e8f9f7 203 /* SGI/MIPS DWARF 2 extensions */
<> 144:ef7eb2e8f9f7 204 .debug_weaknames 0 : { *(.debug_weaknames) }
<> 144:ef7eb2e8f9f7 205 .debug_funcnames 0 : { *(.debug_funcnames) }
<> 144:ef7eb2e8f9f7 206 .debug_typenames 0 : { *(.debug_typenames) }
<> 144:ef7eb2e8f9f7 207 .debug_varnames 0 : { *(.debug_varnames) }
<> 144:ef7eb2e8f9f7 208
<> 144:ef7eb2e8f9f7 209 .note.gnu.arm.ident 0 : { KEEP (*(.note.gnu.arm.ident)) }
<> 144:ef7eb2e8f9f7 210 .ARM.attributes 0 : { KEEP (*(.ARM.attributes)) }
<> 144:ef7eb2e8f9f7 211 /DISCARD/ : { *(.note.GNU-stack) }
<> 144:ef7eb2e8f9f7 212 }