/* start.s 启动汇编 */.global _start_start:ldr sp, 0xFFFF0000bl mainhalt:b halt/* led.c 主C代码 /#define GPIOEOUTENB ((volatile unsigned int)0xC001E004)#define GPIOEOUT ((volatile unsigned int *)0xC001E000)void delay(void){volatile unsigned int i 0xf00000;for(; i 0; i–);}int main(void){unsigned int cnt 0x2000;GPIOEOUTENB | (1U 13);while (cnt--) { GPIOEOUT ~(1U 13); delay(); GPIOEOUT | (1U 13); delay(); } while(1);}/* led.lds 链接脚本 */SECTIONS{. 0xC0000000;.text : {*(.text)}.rodata : {*(.rodata)}.data : {*(.data)}.bss : {*( .bss )}} 交叉编译命令 arm-linux-gnueabihf-as start.s -o start.oarm-linux-gnueabihf-gcc -c led.c -o led.o -nostdlibarm-linux-gnueabihf-ld start.o led.o -T led.lds -o led.elfarm-linux-gnueabihf-objcopy -O binary led.elf led.bin