Usbio24 Ocx

For USBIO24 module manufactured by Gigatechnology and Elexol

History software ver 1.0 software ver 1.1

20-06-2004 29-06-2004

software ver 1.2

19-08-2004

manual version 1 manual version 2 manual version 2.1 manual version 2.2 manual version 2.3 manual version 2.4 manual version 2.5

29-06-2004 22-07-2004 23-07-2004 19-08-2004 22-09-2004 29-10-2006 06-01-2007

automatic detection of USB Virtual Com Port for Windows 2000 add Serial No property

Include Port Connector Pinout on Page 1 add Serial No property add accessory boards add support for Windows XP SP2 expand installation steps

email all comments and errors to [email protected]

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Driver Installation The Com port number will vary depending on the number of existing com ports on your computer and the number of USBIO24s connected to your system.

Step 1 Plug in the USBIO24 using a USB cable.

Step 2 2 drivers would be installed. Firstly is the USB serial converter

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Step 3 Secondly it will install the USB Serial Port driver.

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Step 4 Run the setup program on the CD.

Step 5 Next run the sample program [USBIOex1]

You should get the screen below which show that the installation is successful.

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Step 6 Run VB and start a new project to develop your own program. You may key in the sample program.

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Commands (1)

Identity

USBIO.Identity Display the identity string “USB I/O 24” (2)

Connect

USBIO.Connect Connect the USBIO24 to the virtual serial port for Windows 2000. For Windows 98 use USBIO24.comPort. The driver is installed as a Virtual Com Port and when installed the USBIO24 will appear in the System Properties / Device Manager as an USB Serial Port (COMn) as follows.

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(3) ComPort USBIO.ComPort Display the serial port number that the USBIO24 is currently connected to. USBIO.ComPort = 3 Connect the USBIO24 to serial port number 3 (4)

WriteDDR

USBIO.WriteDDRA Set Port A pins as input or output Example USBIO24.DDRA = &HFF USBIO24.DDRA = 0 USBIO24.DDRA = 1 USBIO24.DDRA = &H31

‘ 11111111 - all pins as inputs ‘ 00000000 - all pins as outputs ‘ 00000001 - pin 0 as inputs, pin 1 to 7 as outputs ‘ 00110001 - pin 0, 4, 5 as inputs, the rest as outputs

USBIO.WriteDDRB Set Port B pins as input or output USBIO.WriteDDRC Set Port C pins as input or output

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(5)

WritePort

USBIO.WritePortA Switch on/off Port A pins Example USBIO.WritePortA = &HFF USBIO.WritePortA = 0 USBIO.WritePortA = &H55

‘11111111 - All pins of Port A are switch on ‘ (at logic 1) ‘00000000 - All pins of Port A are switch off ‘ (at logic 0) ‘01010101 - pins 0, 2, 4, 6 are switch on ‘ and pins 1, 3, 5, 7 are switch off

USBIO.WritePortB Switch on/off Port B pins USBIO.WritePortC Switch on/off Port C pins (6)

ReadPort

USBIO1.ReadPortA Display the content of Port A USBIO.ReadPortB Display the content of Port B USBIO.ReadPortC Display the content of Port C

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(7)

SetBit

USBIO.SetBitA Switch on selected bits of Port A USBIO.SetBitA = &H12 USBIO.SetBitA = &HA1 USBIO.SetBitA = &HFF USBIO.SetBitA = 0

‘00010010 – switch on pin 1 and 4. Other pins no change ‘10100001 – switch on pin 0, 5 and 7. Other pins no change ‘11111111 – switch on all pins ‘00000000 – All pins no change

USBIO.SetBitB Switch on selected bits of Port B USBIO.SetBitC Switch on selected bits of Port C (8)

ClearBit

USBIO.ClearBitA Switch off selected bits of Port A Example USBIO.ClearBitA = &H12 ‘00010010 – switch off pin 1 and 4. Other pins no change USBIO.ClearBitA = &HA1 ‘10100001 – switch off pin 0, 5 and 7. ‘ Other pins no change USBIO.ClearBitA = &HFF ‘11111111 – switch off all pins USBIO.ClearBitA = 0 ‘00000000 – All pins no change USBIO.ClearBitB Switch off selected bits of Port B USBIO.ClearBitC Switch off selected bits of Port C 11

(9)

Serial Number

USBIO.SerialNo Display the Serial No

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Sample program 1 Private Sub Form_Load() USBIO1.Connect ‘ auto connect to the virtua1 comm. port Text1.Text = USBIO1.Identity & " " & USBIO1.ComPort USBIO1.WriteDDRA = &H0 USBIO1.WritePortA = &HF1 USBIO1.SetBitA = (&H8) USBIO1.SetBitA = (&H6) USBIO1.ClearBitA = (&H30)

‘ 00000000 - set Port A as output ‘ 11110001 - switch on Port A bit 7,6,5,4,0 and ‘ off the rest ‘ 00001000 - switch on bit 3 ‘ 00000110 - switch on bit 1,2 ‘ 00110000 - switch off 5,4

Text2.Text = Hex$(USBIO1.ReadPortA) End Sub

Sample program 2 Private Sub Form_Load() USBIO1.Connect Text1.Text = USBIO1.Identity & USBIO1.ComPort & vbCrLf & USBIO1.SerialNo USBIO1.WriteDDRA = &H0 USBIO1.WriteDDRB = &H0 USBIO1.WriteDDRC = &H0 USBIO1.WritePortA = &HF1 USBIO1.WritePortB = &H22 USBIO1.WritePortC = &HFF USBIO1.SetBitA = (&H2) USBIO1.SetBitB = (&H2) USBIO1.ClearBitC = (&H30) Text2.Text = Hex$(USBIO1.ReadPortA) Text3.Text = Hex$(USBIO1.ReadPortB) Text4.Text = Hex$(USBIO1.ReadPortC) End Sub

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Disclaimer This product and its documentation are provided as-is and no warranty is made or implied as to their suitability for any particular purpose.

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USBIO24 Accessory Boards All the accessory boards listed below can be used on the USB I/O 24

(1)

USBIO24 Connector / LED Board

(2)

USBIO24 Switch / Push Button Board

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(3)

(4)

USBIO24 Opto Input Board

USBIO24 Relay Output Board

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