微處理器 - RockChip RV1103 (Luckfox Pico Mini B) - Assembly - LED

參考資訊：
https://github.com/xboot/xrock
https://github.com/trebisky/Rockchip
https://wiki.luckfox.com/luckfox-pico/luckfox-pico-quick-start/
https://github.com/steward-fu/website/releases/download/datasheet/rockchip_rv1106_rm.pdf

LED腳位


GPIO1位址


Data


Direction


main.s

    .global _start
      
    .equ GPIO1_BASE, 0xFF530000
    .equ GPIO1_IOC,  0xFF538000
    .equ PA_DAT_L,   0x00
    .equ PA_DAT_H,   0x04
    .equ PA_DIR_L,   0x08
    .equ PA_DIR_H,   0x0c
       
    .arm
    .text
_start:
    ldr r0, =GPIO1_BASE
    ldr r1, =0xffffffff
    str r1, [r0, #PA_DIR_L]
 
    ldr r1, =(1 << 2)
0:
    eor r2, r1
    str r2, [r0, #PA_DAT_L]
    ldr r3, =50000
1:
    subs r3, #1
    bne 1b
    b 0b
    .end

main.ld

MEMORY {
    RAM : ORIGIN = 0, LENGTH = 64K
}

SECTIONS {
    .text : { *(.text*) } > RAM
    .data : { *(.data*) } > RAM
    .bss : { *(.bss*) } > RAM
}

Maekfile

all:
	arm-linux-gnueabihf-as -mcpu=cortex-a7 -o main.o main.s
	arm-linux-gnueabihf-ld -T main.ld -o main.elf main.o
	arm-linux-gnueabihf-objcopy -O binary main.elf main.bin

run:
	xrock extra maskrom --rc4 off --sram main.bin

clean:
	rm -rf main.bin main.o main.elf

編譯

$ make
    arm-linux-gnueabihf-as -mcpu=cortex-a7 -o main.o main.s
    arm-linux-gnueabihf-ld -T main.ld -o main.elf main.o
    arm-linux-gnueabihf-objcopy -O binary main.elf main.bin

按下白色按鍵後，插入USB到PC，接著下載到SRAM執行

$ make run
    xrock extra maskrom --rc4 off --sram main.bin

完成