适用于Edison /dev/ttyMFD1的初始化代码

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toeflsieasy

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1^# 发表于 2015-03-03 10:43:03

昨天弄了一个通宵，死活ttyMFD1输出不了，今天经QQ群里的苍之封印指点，使用以下方式初始化后，ttyMFD1使用正常了：

						echo 214 > /sys/class/gpio/export 2>&1
					
						echo high > /sys/class/gpio/gpio214/direction
					
						echo low > /sys/class/gpio/gpio214/direction
					
						echo 131 > /sys/class/gpio/export 2>&1
					
						echo mode1 > /sys/kernel/debug/gpio_debug/gpio131/current_pinmux
					
						echo 249 > /sys/class/gpio/export 2>&1
					
						echo high > /sys/class/gpio/gpio249/direction
					
						echo 1 > /sys/class/gpio/gpio249/value
					
						echo 217 > /sys/class/gpio/export 2>&1
					
						echo high > /sys/class/gpio/gpio217/direction
					
						echo 1 > /sys/class/gpio/gpio217/value
					
						echo out > /sys/class/gpio/gpio131/direction
					
						echo 0 > /sys/class/gpio/gpio131/value
					
						echo 130 > /sys/class/gpio/export 2>&1
					
						echo mode1 > /sys/kernel/debug/gpio_debug/gpio130/current_pinmux
					
						echo 248 > /sys/class/gpio/export 2>&1
					
						echo low > /sys/class/gpio/gpio248/direction
					
						echo 0 > /sys/class/gpio/gpio248/value
					
						echo 216 > /sys/class/gpio/export 2>&1
					
						echo in > /sys/class/gpio/gpio216/direction
					
						echo in > /sys/class/gpio/gpio130/direction
					
						echo high > /sys/class/gpio/gpio214/direction

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适用于Edison /dev/ttyMFD1的初始化代码