2 94192904010E
©
Copyright 2016 Axiomtek Co., Ltd.
Version A2 June 2016
Printed in Taiwan
Connectors
Connector
Description
CN1~CN4
Digital I/O Connectors
Digital I/O Connectors (CN1~CN4)
CN1~CN4 are JST S10B-PHD-S-S, 2x5-pin p=2.0mm Dip connectors for
digital I/O interface. The AX92904 is equipped with four 8-bit digital I/O
connectors that meet requirements for a system customary automation
control. These digital I/O signals are from two 16-bit PCA9535:
CN1/CN2/CN3/CN4:
Note: Please contact your local vendors if any damaged or missing items. DO
NOT apply power to the module if there is any damaged component.
Jumper Setting
Before applying power to AX92904, please make sure all jumper(s) are in
factory default positions.
Pin
Signal
Pin
Signal
1 DIO7/15/23/31
2 DIO0/8/16/24
3 DIO6/14/22/30
4 DIO1/9/17/25
5 DIO5/13/21/29
6 DIO2/10/18/26
7 DIO4/12/20/28
8 DIO3/11/19/27
9 GND
10
+5VS
Jumper
Description
Setting
First group (CN1 and CN2),
slave address: 0x48
EEPROM
Slave
Address:
A8
Second group (CN3 and
CN4), slave address: 0x4A
1-2
Close
(Default)
First group (CN1 and CN2),
slave address: 0x4C
JP1
EEPROM
Slave
Address:
AA
Second group (CN3 and
CN4), slave address: 0x4E
2-3
Close
94192904010E 3
©
Copyright 2016 Axiomtek Co., Ltd.
Version A2 June 2016
Printed in Taiwan
Programming Guide
A set of application programming interface (AxDIO32 DLL) functions are
released for users to access/control hardware. With these API functions,
users can more easily design their own software.
Note: To run the accompanied demo program, make sure that .Net framework
3.5 is installed on your operating system. Also copy AxDIO32.dll,
AxWIO32.dll, AXWIO32.sys and DIO_for_AX92904 files to the same
folder.
Description of each API function is given as follows:
1. AxInit():
Initiates AxWIO.
Function BOOL
AxInit();
Arguments
None.
Return
TRUE: No error.
FALSE: Function fails.
2. AxClose():
Terminate AxWIO.
Function BOOL
AxClose();
Arguments
None.
Return
TRUE: No error.
FALSE: Function fails.
3. AxInitGPIO()
:
Set GPIO registers to default value.
Function BOOL
AxInitGPIO();
Arguments
None.
Return
TRUE: No error.
FALSE: Function fails.
4. AxGetConfigGPIO():
Get GPIO configuration (as digital input or
digital output)
Function BOOL
AxGetConfigGPIO(byte
GPIO1[], byte
GPIO2[], byte GPIO3[], byte GPIO4[]);
Arguments
All GPIO configuration values read back are placed in
four 1-byte arrays:
GPIO1[]
: The 1-byte array for GPIO0~7 configuration.
GPIO2[]
: The 1-byte array for GPIO8~15 configuration.
GPIO3[]
: The 1-byte array for GPIO16~23 configuration.
GPIO4[]
: The 1-byte array for GPIO24~31 configuration.
Return
TRUE: No error.
FALSE: Function fails.
