ionnic 06-0001, Руководство пользователя

Страница: 20 / 28

20
GPIO Specification
GPIO_DEMO Instruction
Pins Wire Colour Description Logic Symbol Min. TYP. Max. Unit Note
GPIO1 RED Digital Input
VIH 3 5 25 V
Positive Trigger Input
VIL 0 0 0.6 V
GPIO2 WHITE Digital Input
VIH 3 5 25 V
Positive Trigger Input
VIL 0 0 0.6 V
GPIO3 GREEN Digital Output
VOH 3 — 4 V
Internal weak pull-up
VOL 0 — 0.1 V
GPIO4 YELLOW Digital Output
VOH 3 — 4 V
Internal weak pull-up
VOL 0 — 0.1 V
GND BLACK Ground Black wire (Ground) should be connected to common ground of connecting devices.
1. This software is only used for reference when developing GPIO functions of device, and it isn't suitable for factory's
standard software.
2. GPIO_DEMO Main Interface:
3. Introduction of Main Components:
The part marked with a red box in Figure 9, the "Name" in the first column means the port names of GPIO. The
"Direction" in the second column means the input or output direction of the ports (It uses drop-down list control to
match the Direction value of corresponding GPIO ports with the actual situation of device, ensure that the test software
works normally, but not available for adjusting the input or output state of the GPIO ports.). The "State" in the third
column means the current level state of the GPIO ports, it used to show the level state of corresponding GPIO ports
read by the software last time when the direction of GPIO port is IN; The buttons on State column can set the level
state of corresponding GPIO ports when the direction of GPIO port is OUT.
27
Figure 2-1
c) Introduction of Main Components
The part marked with a red box in Figure 2-2. The "Name" in the first column
means the port names of GPIO. The "Direction" in the second column means
the input or output direction of the ports (Ps: It uses drop-down list control to
match the Direction value of corresponding GPIO ports with the actual situation
of device, ensure that the test software works normally, but not available for
adjusting the input or output state of the GPIO ports.). The "State" in the third
column means the current level state of the GPIO ports, it used to show the
level state of corresponding GPIO ports read by the software last time when
the direction of GPIO port is IN; The buttons on State column can set the level
state of corresponding GPIO ports when the direction of GPIO port is OUT.
Figure 2-2
The button marked with a red box in Figure 2-3. It's used to read the level state
of GPIO ports simultaneously when the directions are IN, and update to
display on the corresponding buttons of State column; The criticality of
high-low level is about 0.78V, it will display HIGH when more than 0.78V, and
display LOW when less than 0.78V.
Fig. 8