diff options
| -rw-r--r-- | firmware/Makefile | 4 | ||||
| -rw-r--r-- | firmware/link/AT91SAM7S128-RAM-sam7dfu-app.ld | 94 | ||||
| -rw-r--r-- | firmware/src/os/req_ctx.c | 2 | ||||
| -rw-r--r-- | firmware/src/start/Cstartup_app.S | 2 |
4 files changed, 99 insertions, 3 deletions
diff --git a/firmware/Makefile b/firmware/Makefile index b085c33..68ff85f 100644 --- a/firmware/Makefile +++ b/firmware/Makefile @@ -49,7 +49,7 @@ USE_THUMB_MODE = NO #USE_THUMB_MODE = YES ## Create ROM-Image (final) -RUN_MODE=RUN_FROM_ROM +RUN_MODE:=RUN_FROM_ROM ## Create RAM-Image (debugging) - not used in this example #RUN_MODE=RUN_FROM_RAM @@ -319,7 +319,7 @@ LDFLAGS += -Wl,--gc-sections -Wl,--entry=_startup # Set Linker-Script Depending On Selected Memory and Controller ifeq ($(RUN_MODE),RUN_FROM_RAM) -LDFLAGS +=-T$(PATH_TO_LINKSCRIPTS)$(SUBMDL)-RAM.ld +LDFLAGS +=-T$(PATH_TO_LINKSCRIPTS)$(SUBMDL)-RAM$(IMGTYPE).ld else LDFLAGS +=-T$(PATH_TO_LINKSCRIPTS)$(SUBMDL)-ROM$(IMGTYPE).ld endif diff --git a/firmware/link/AT91SAM7S128-RAM-sam7dfu-app.ld b/firmware/link/AT91SAM7S128-RAM-sam7dfu-app.ld new file mode 100644 index 0000000..674ee00 --- /dev/null +++ b/firmware/link/AT91SAM7S128-RAM-sam7dfu-app.ld @@ -0,0 +1,94 @@ +/* Memory Definitions */ + +MEMORY +{ + /* reserve 16K DFU area on top of flash */ + /* FLASH (rx) : ORIGIN = 0x00104000, LENGTH = (0x00020000 - 0x4000 - 0x400) */ + /* reserve 1k DFU area on top of RAM */ + DATA (rw) : ORIGIN = 0x00200400, LENGTH = (0x00008000 - 0x400) + STACK (rw) : ORIGIN = 0x00208000, LENGTH = 0x00000000 +} + + +/* Section Definitions */ + +SECTIONS +{ + . = 0x00000000; + /* first section is .text which is used for code */ + .text 0x00200400: AT ( 0x00000000 ) { + src/start/Cstartup_app.o (.text) + * (.text) + * (.rodata*) + . = ALIGN(4); + + _etext = . ; + PROVIDE (etext = .); + + _data = . ; + * (.fastrun) + * (.data) + . = ALIGN(4); + } >DATA + + _edata = . ; + PROVIDE (edata = .); + + /* .bss section which is used for uninitialized data */ + .bss : { + __bss_start = . ; + __bss_start__ = . ; + *(.bss) + *(COMMON) + } >DATA + + . = ALIGN(4); + __bss_end__ = . ; + __bss_end__ = . ; + + PROVIDE (main = .); + + _end = . ; + + . = ALIGN(4); + .int_data : { + *(.internal_ram_top) + } >STACK + + PROVIDE (end = .); + + /* Stabs debugging sections. */ + .stab 0 : { *(.stab) } + .stabstr 0 : { *(.stabstr) } + .stab.excl 0 : { *(.stab.excl) } + .stab.exclstr 0 : { *(.stab.exclstr) } + .stab.index 0 : { *(.stab.index) } + .stab.indexstr 0 : { *(.stab.indexstr) } + .comment 0 : { *(.comment) } + /* DWARF debug sections. + Symbols in the DWARF debugging sections are relative to the beginning + of the section so we begin them at 0. */ + /* DWARF 1 */ + .debug 0 : { *(.debug) } + .line 0 : { *(.line) } + /* GNU DWARF 1 extensions */ + .debug_srcinfo 0 : { *(.debug_srcinfo) } + .debug_sfnames 0 : { *(.debug_sfnames) } + /* DWARF 1.1 and DWARF 2 */ + .debug_aranges 0 : { *(.debug_aranges) } + .debug_pubnames 0 : { *(.debug_pubnames) } + /* DWARF 2 */ + .debug_info 0 : { *(.debug_info .gnu.linkonce.wi.*) } + .debug_abbrev 0 : { *(.debug_abbrev) } + .debug_line 0 : { *(.debug_line) } + .debug_frame 0 : { *(.debug_frame) } + .debug_str 0 : { *(.debug_str) } + .debug_loc 0 : { *(.debug_loc) } + .debug_macinfo 0 : { *(.debug_macinfo) } + /* SGI/MIPS DWARF 2 extensions */ + .debug_weaknames 0 : { *(.debug_weaknames) } + .debug_funcnames 0 : { *(.debug_funcnames) } + .debug_typenames 0 : { *(.debug_typenames) } + .debug_varnames 0 : { *(.debug_varnames) } + +} diff --git a/firmware/src/os/req_ctx.c b/firmware/src/os/req_ctx.c index 0e4816e..cc8d57b 100644 --- a/firmware/src/os/req_ctx.c +++ b/firmware/src/os/req_ctx.c @@ -28,7 +28,7 @@ /* FIXME: locking, FIFO order processing */ -#ifdef __AT91SAM7S64__ +#if defined(__AT91SAM7S64__) || defined(RUN_FROM_RAM) #define NUM_RCTX_SMALL 16 #define NUM_RCTX_LARGE 1 #else diff --git a/firmware/src/start/Cstartup_app.S b/firmware/src/start/Cstartup_app.S index 448cc93..197be66 100644 --- a/firmware/src/start/Cstartup_app.S +++ b/firmware/src/start/Cstartup_app.S @@ -79,6 +79,7 @@ .global _startup .func _startup _startup: +#ifndef RUN_FROM_RAM /* Relocate .data section (copy from Flash to RAM) */ ldr r1, =_etext ldr r2, =_data @@ -87,6 +88,7 @@ loop_r: cmp r2, r3 ldrlo r0, [r1], #4 strlo r0, [r2], #4 blo loop_r +#endif /* Clear .bss section (Zero init) */ mov r0, #0 |