Xingxing.li at 08:03, 17 December 2024

2024-12-17T08:03:14Z

Xingxing.li: Created page with " File:AFE-E630 DIDO.png File:AFE-E630 DIDO GPIO.png"

2024-12-11T05:43:50Z

New page

[[File:AFE-E630 DIDO.png]]

[[File:AFE-E630 DIDO GPIO.png]]

← Older revision		Revision as of 08:03, 17 December 2024
Line 1:		Line 1:

−	[[File:AFE-E630 DIDO.png]]	+	[[File:AFE-E630 DIDO.png\|RTENOTITLE]]

−	[[File:AFE-E630 DIDO GPIO.png]]	+	[[File:AFE-E630 DIDO GPIO.png\|RTENOTITLE]]
		+
		+	=== '''Test''' ===
		+
		+	Export GPIO then you can use control GPIO from userr space through sysfs.
		+
		+	Export GPIO0
		+	<pre># echo 8 > /sys/class/gpio/export
		+	</pre>
		+
		+	Set GPIO direction to in/out
		+	<pre># echo "out" > /sys/class/gpio/gpio8/direction
		+	</pre>
		+
		+	Set GPIO value 0/1 if GPIO pin define is output
		+	<pre># echo 1 > /sys/class/gpio/gpio8/value
		+	</pre>
		+
		+	Unexport GPIO0
		+	<pre># echo 8 > /sys/class/gpio/unexport</pre>
		+
		+	=== '''GPIO Test''' ===
		+
		+	1. GPIO0 and GPIO1 are taken as an example: Connect GPIO0 and GPIO1
		+
		+	*'''Export GPIO0 and GPIO1'''
		+	<pre># echo 8 > /sys/class/gpio/export
		+	# echo 98 > /sys/class/gpio/export
		+	</pre>
		+
		+	*'''Set GPIO0 to output and GPIO1 to input'''
		+	<pre># echo "out" > /sys/class/gpio/gpio8/direction
		+	# echo "in" > /sys/class/gpio/gpio98/direction
		+	</pre>
		+
		+	*'''Change GPIO0 to 1 and read GPIO1 value'''
		+	<pre># echo 1 > /sys/class/gpio/gpio8/value
		+	# cat /sys/class/gpio/gpio98/value
		+	1
		+	</pre>
		+
		+	*'''Change GPIO0 to 0 and read GPIO1 value'''
		+	<pre># echo 0 > /sys/class/gpio/gpio8/value
		+	# cat /sys/class/gpio/gpio98/value
		+	0</pre>
		+
		+	[[File:AFE-E630 GPIO Function.png]]
		+
		+	2. Test GPIO mode 2（Short Pin1->6、2->7、3->4）
		+	<pre># /tools/test/adv/gpio/gpio_autotest.sh</pre>
		+
		+	[[File:AFE-E630 GPIO Loopback.png]]