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| ARMGNU = arm-none-eabi | ||
| #ARMGNU = arm-linux-gnueabi | ||
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| AOPS = --warn --fatal-warnings -mcpu=cortex-m0 | ||
| COPS = -Wall -Werror -O2 -nostdlib -nostartfiles -ffreestanding -mcpu=cortex-m0 | ||
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| LOPS = -Wall -m32 -emit-llvm -target arm-none-eabi -mcpu=cortex-m0 -mthumb | ||
| LLCOPS = -march=thumb -mcpu=cortex-m0 | ||
| #LLCOPS = -mcpu=cortex-m0 | ||
| COPS = -Wall -O2 -nostdlib -nostartfiles -ffreestanding | ||
| #at some point they changed this option, gee thanks | ||
| #OOPS = -std-compile-opts | ||
| OOPS = -std-link-opts | ||
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| gcc : uart02.gcc.thumb.flash.bin uart02.gcc.thumb.sram.bin | ||
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| all : gcc clang | ||
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| clang : uart02.clang.thumb.norm.flash.bin uart02.clang.thumb.opt.flash.bin uart02.clang.thumb.norm.sram.bin uart02.clang.thumb.opt.sram.bin | ||
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| clean: | ||
| rm -f *.bin | ||
| rm -f *.o | ||
| rm -f *.elf | ||
| rm -f *.list | ||
| rm -f *.bc | ||
| rm -f *.opt.s | ||
| rm -f *.norm.s | ||
| rm -f *.hex | ||
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| #--------------------------------- | ||
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| flash.o : flash.s | ||
| $(ARMGNU)-as $(AOPS) flash.s -o flash.o | ||
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| sram.o : sram.s | ||
| $(ARMGNU)-as $(AOPS) sram.s -o sram.o | ||
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| uart02.gcc.thumb.o : uart02.c | ||
| $(ARMGNU)-gcc $(COPS) -mthumb -c uart02.c -o uart02.gcc.thumb.o | ||
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| uart02.gcc.thumb.flash.bin : flash.ld flash.o uart02.gcc.thumb.o | ||
| $(ARMGNU)-ld -o uart02.gcc.thumb.flash.elf -T flash.ld flash.o uart02.gcc.thumb.o | ||
| $(ARMGNU)-objdump -D uart02.gcc.thumb.flash.elf > uart02.gcc.thumb.flash.list | ||
| $(ARMGNU)-objcopy uart02.gcc.thumb.flash.elf uart02.gcc.thumb.flash.bin -O binary | ||
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| uart02.gcc.thumb.sram.bin : sram.ld sram.o uart02.gcc.thumb.o | ||
| $(ARMGNU)-ld -o uart02.gcc.thumb.sram.elf -T sram.ld sram.o uart02.gcc.thumb.o | ||
| $(ARMGNU)-objdump -D uart02.gcc.thumb.sram.elf > uart02.gcc.thumb.sram.list | ||
| $(ARMGNU)-objcopy uart02.gcc.thumb.sram.elf uart02.gcc.thumb.sram.hex -O ihex | ||
| $(ARMGNU)-objcopy uart02.gcc.thumb.sram.elf uart02.gcc.thumb.sram.bin -O binary | ||
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| #--------------------------------- | ||
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| uart02.clang.bc : uart02.c | ||
| clang $(LOPS) -c uart02.c -o uart02.clang.bc | ||
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| uart02.clang.thumb.norm.flash.bin : flash.ld flash.o uart02.clang.bc | ||
| #llc $(LLCOPS) uart02.clang.bc -o uart02.clang.thumb.norm.s | ||
| #$(ARMGNU)-as $(AOPS) uart02.clang.thumb.norm.s -o uart02.clang.thumb.norm.o | ||
| llc $(LLCOPS) uart02.clang.bc -filetype=obj -o uart02.clang.thumb.norm.o | ||
| $(ARMGNU)-ld -o uart02.clang.thumb.norm.flash.elf -T flash.ld flash.o uart02.clang.thumb.norm.o | ||
| $(ARMGNU)-objdump -D uart02.clang.thumb.norm.flash.elf > uart02.clang.thumb.norm.flash.list | ||
| $(ARMGNU)-objcopy uart02.clang.thumb.norm.flash.elf uart02.clang.thumb.norm.flash.bin -O binary | ||
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| uart02.clang.thumb.opt.flash.bin : flash.ld flash.o uart02.clang.bc | ||
| opt $(OOPS) uart02.clang.bc -o uart02.clang.thumb.opt.bc | ||
| #llc $(LLCOPS) uart02.clang.thumb.opt.bc -o uart02.clang.thumb.opt.s | ||
| #$(ARMGNU)-as $(AOPS) uart02.clang.thumb.opt.s -o uart02.clang.thumb.opt.o | ||
| llc $(LLCOPS) uart02.clang.thumb.opt.bc -filetype=obj -o uart02.clang.thumb.opt.o | ||
| $(ARMGNU)-ld -o uart02.clang.thumb.opt.flash.elf -T flash.ld flash.o uart02.clang.thumb.opt.o | ||
| $(ARMGNU)-objdump -D uart02.clang.thumb.opt.flash.elf > uart02.clang.thumb.opt.flash.list | ||
| $(ARMGNU)-objcopy uart02.clang.thumb.opt.flash.elf uart02.clang.thumb.opt.flash.bin -O binary | ||
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| uart02.clang.thumb.norm.sram.bin : sram.ld sram.o uart02.clang.bc | ||
| #llc $(LLCOPS) uart02.clang.bc -o uart02.clang.thumb.norm.s | ||
| #$(ARMGNU)-as $(AOPS) uart02.clang.thumb.norm.s -o uart02.clang.thumb.norm.o | ||
| llc $(LLCOPS) uart02.clang.bc -filetype=obj -o uart02.clang.thumb.norm.o | ||
| $(ARMGNU)-ld -o uart02.clang.thumb.norm.sram.elf -T sram.ld sram.o uart02.clang.thumb.norm.o | ||
| $(ARMGNU)-objdump -D uart02.clang.thumb.norm.sram.elf > uart02.clang.thumb.norm.sram.list | ||
| $(ARMGNU)-objcopy uart02.clang.thumb.norm.sram.elf uart02.clang.thumb.norm.sram.hex -O ihex | ||
| $(ARMGNU)-objcopy uart02.clang.thumb.norm.sram.elf uart02.clang.thumb.norm.sram.bin -O binary | ||
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| uart02.clang.thumb.opt.sram.bin : sram.ld sram.o uart02.clang.bc | ||
| opt $(OOPS) uart02.clang.bc -o uart02.clang.thumb.opt.bc | ||
| #llc $(LLCOPS) uart02.clang.thumb.opt.bc -o uart02.clang.thumb.opt.s | ||
| #$(ARMGNU)-as $(AOPS) uart02.clang.thumb.opt.s -o uart02.clang.thumb.opt.o | ||
| llc $(LLCOPS) uart02.clang.thumb.opt.bc -filetype=obj -o uart02.clang.thumb.opt.o | ||
| $(ARMGNU)-ld -o uart02.clang.thumb.opt.sram.elf -T sram.ld sram.o uart02.clang.thumb.opt.o | ||
| $(ARMGNU)-objdump -D uart02.clang.thumb.opt.sram.elf > uart02.clang.thumb.opt.sram.list | ||
| $(ARMGNU)-objcopy uart02.clang.thumb.opt.sram.elf uart02.clang.thumb.opt.sram.hex -O ihex | ||
| $(ARMGNU)-objcopy uart02.clang.thumb.opt.sram.elf uart02.clang.thumb.opt.sram.bin -O binary | ||
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| See the previous level README for schematic and programmers reference | ||
| information and how to run these programs. | ||
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| This program assumes the chip is in a just out of reset state, that no | ||
| other software has configured the peripherals or adjusted clocks, etc. | ||
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| derived from uart01. This is a baseline to use for other examples. | ||
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| This sparkfun board has a couple of TX/RX pins called out | ||
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| The ones next to the SWCLK/SWDIO | ||
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| TX PB22 SERCOM5 PAD[2] PORT FUNCTION D | ||
| RX PB23 SERCOM5 PAD[3] PORT FUNCTION D | ||
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| The arduino ones in the corner | ||
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| TX PA10 SERCOM0 PAD[2] FUNCTION C SERCOM2 PAD[2] FUNCTION D | ||
| RX PA11 SERCOM0 PAD[3] FUNCTION C SERCOM2 PAD[3] FUNCTION D | ||
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| This example defaults to SERCOM5 the PB22/PB23 pins. Set a define | ||
| in the code to swich to SERCOM0. | ||
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| It starts by using the status bits to blast characters out, then | ||
| prints a few interesting things, and goes into a loop that echos | ||
| out what it receives. | ||
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| Currently the CPUID shows 410CC601 for my part so this is an r0p1 | ||
| version of the Cortex-M0+, so that version of the TRM should be used. |
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| MEMORY | ||
| { | ||
| ram : ORIGIN = 0x00000000, LENGTH = 0x1000 | ||
| } | ||
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| SECTIONS | ||
| { | ||
| .text : { *(.text*) } > ram | ||
| .rodata : { *(.rodata*) } > ram | ||
| .bss : { *(.bss*) } > ram | ||
| } | ||
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| .cpu cortex-m0 | ||
| .thumb | ||
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| .thumb_func | ||
| .global _start | ||
| _start: | ||
| stacktop: .word 0x20001000 | ||
| .word reset | ||
| .word hang | ||
| .word hang | ||
| .word hang | ||
| .word hang | ||
| .word hang | ||
| .word hang | ||
| .word hang | ||
| .word hang | ||
| .word hang | ||
| .word hang | ||
| .word hang | ||
| .word hang | ||
| .word hang | ||
| .word hang | ||
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| .thumb_func | ||
| reset: | ||
| bl notmain | ||
| b hang | ||
| .thumb_func | ||
| hang: b . | ||
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| .align | ||
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| .thumb_func | ||
| .globl PUT8 | ||
| PUT8: | ||
| strb r1,[r0] | ||
| bx lr | ||
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| .thumb_func | ||
| .globl PUT16 | ||
| PUT16: | ||
| strh r1,[r0] | ||
| bx lr | ||
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| .thumb_func | ||
| .globl PUT32 | ||
| PUT32: | ||
| str r1,[r0] | ||
| bx lr | ||
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| .thumb_func | ||
| .globl GET8 | ||
| GET8: | ||
| ldrb r0,[r0] | ||
| bx lr | ||
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| .thumb_func | ||
| .globl GET16 | ||
| GET16: | ||
| ldrh r0,[r0] | ||
| bx lr | ||
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| .thumb_func | ||
| .globl GET32 | ||
| GET32: | ||
| ldr r0,[r0] | ||
| bx lr | ||
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| .thumb_func | ||
| .globl dummy | ||
| dummy: | ||
| bx lr | ||
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| .end |
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| MEMORY | ||
| { | ||
| ram : ORIGIN = 0x20000000, LENGTH = 0x1000 | ||
| } | ||
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| SECTIONS | ||
| { | ||
| .text : { *(.text*) } > ram | ||
| .rodata : { *(.rodata*) } > ram | ||
| .bss : { *(.bss*) } > ram | ||
| } | ||
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| .cpu cortex-m0 | ||
| .thumb | ||
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| .thumb_func | ||
| .global _start | ||
| _start: | ||
| ldr r0,stacktop | ||
| mov sp,r0 | ||
| bl notmain | ||
| b hang | ||
| .thumb_func | ||
| hang: b . | ||
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| .align | ||
| stacktop: .word 0x20002000 | ||
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| .thumb_func | ||
| .globl PUT8 | ||
| PUT8: | ||
| strb r1,[r0] | ||
| bx lr | ||
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| .thumb_func | ||
| .globl PUT16 | ||
| PUT16: | ||
| strh r1,[r0] | ||
| bx lr | ||
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| .thumb_func | ||
| .globl PUT32 | ||
| PUT32: | ||
| str r1,[r0] | ||
| bx lr | ||
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| .thumb_func | ||
| .globl GET8 | ||
| GET8: | ||
| ldrb r0,[r0] | ||
| bx lr | ||
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| .thumb_func | ||
| .globl GET16 | ||
| GET16: | ||
| ldrh r0,[r0] | ||
| bx lr | ||
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| .thumb_func | ||
| .globl GET32 | ||
| GET32: | ||
| ldr r0,[r0] | ||
| bx lr | ||
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| .thumb_func | ||
| .globl dummy | ||
| dummy: | ||
| bx lr | ||
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| .end |
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