use development board/dev/mem equipment, memory mapping, Drivers cpu GPIO the mouth, and the lights extinguished led lights. makefile attached document

gpio
....\mf_gpio_test
....\src
....\...\dev_gpio.c
....\...\dev_gpio.h
....\...\gpio.h
....\...\gpio_test.c
....\...\start.S
....\...\taihu.S
....\...\复件 gpio_test.c

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