Adlink ACL-8112 Series Uživatelský manuál stáhnout pdf (Strana 65)

C Language Library • 57

7.3 _8112_DI

Description

This function is used to read data from the digital input port. There are

16 bits available for the digital inputs. Bit 0 to bit 7 of the register is

defined as the low byte and bit 8 to bit 15 are defined as the high byte.

Syntax

int _8112_DI( int port_number, unsigned char *data )

int _8112pg_DI( int port_number, unsigned char *data )

Argument:

port_number:

To indicate which port is read,

DI_LO_BYTE

or DI_HI_BYTE.

DI_LO_BYTE: bit 0 ~ bit 7,

DI_HI_BYTE: bit8 ~ bit15

data:

return value from digital port.

Return Code:

ERR_NoError

ERR_BoardNoInit

ERR_PortError

Example:

See Demo program . Demo Program 'DI_DEMO.C'

1 2 ... 60 61 62 63 64 65 66 67 68 69 70 ... 91 92

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Adlink ACL-8112 Series Uživatelský manuál Strana 65