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arm-cortex_a9-linux-gnueabi-gcc -nostdlib -c main.c -o main.o arm-cortex_a9-linux-gnueabi-gcc -nostdlib -c uart.c -o uart.o arm-cortex_a9-linux-gnueabi-ld -nostdlib -nostartfiles -Ttext=0x48000000 -emain main.o uart.o -o uart arm-cortex_a9-linux-gnueabi-objcopy -O binary uart uart.bin 6、下载运行 cp uart.bin /tftpboot/ tftp 48000000 uart.bin go 48000000 |
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