Cincoze DI-1000 Series, Руководство пользователя

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DI-1000 Series
Rugged Embedded Computer
| User’s Manual
85
6.1 Digital I/O (DIO) Application
This section describes DIO application of the product. The content and
application development are better understood and implemented by well
experienced professionals or developers.
6.1.1 Digital I/O Programming Guide
6.1.1.1 Pins for Digital I/O
Item Standard
GPIO74 (Pin107)
DI
GPIO75 (Pin108)
GPIO76 (Pin109)
GPIO77 (Pin110)
GPIO80 (Pin111)
DO
GPIO81 (Pin112)
GPIO82 (Pin113)
GPIO83 (Pin114)
6.1.1.2 Programming Guide
To program the F81866A configuration registers, the following configuration
procedures must be followed in sequence:
(1) Enter the Extended Function Mode
(2) Configure the configuration registers
(3) Exit the Extended Function Mode
The configuration register is used to control the behavior of the corresponding
devices. To con- figure the register, using the index port to select the index and then
writing data port to alter the parameters. The default index port and data port are
0x4E and 0x4F, respectively. To enable configuration, the entry key 0x87 must be
written to the index port. To disable configuration, write exit entry key 0xAA to the
index port. Following is an example to enable configuration and disable configuration
by using debug.
-o 4e 87
-o 4e 87 (enable configuration)
-o 4e aa (disable configuration)
This chapter describes the DIO applications .