GPIB900

 
The GPIB900 driver supports the TransEra Model 900 GPIB card.
 

Loading

The GPIB900 driver is configured using Device Setup. Once the driver is configured it may be loaded using the Device Setup dialog, or with the following statement syntax in your program or AUTOST file:
 
LOAD BIN "GPIB900;DEVICE Id [ISC Isc] [BASE Address] [INTERRUPT Interrupt] [BUS Bus] [NOTSYS|SYSTEM]"
 
 
NOTE: It may be necessary to reboot the system prior to loading the driver for proper device driver configuration.
 

Options

One or more options can be specified, each separated by a space. The option may be abbreviated, as long as the abbreviation is unique.
 

Device ID

Each driver in the Device Setup is uniquely identified by its Device ID. This ID or identification number must be specified when loading the GPIB900 driver from the command line or programmatically.
 

ISC Option

The default ISC is 7, but if you are using multiple IEEE-488 boards, you must use the ISC option to give each one a unique ISC.
 
For example, if we have one 900 board at 2A0(hex) interrupt 5, and another at 3A0(hex) using interrupt 6, the following two lines would load drivers for the two boards:
 
LOAD BIN "GPIB900;DEVICE 5 BASE 2A0 ISC 7"
LOAD BIN "GPIB900;DEVICE 6 BASE 3A0 ISC 8"
 
The first board would have an ISC of 7 and the second board would have an ISC of 8.
 

INTERRUPT

The INTERRUPT option tells the driver the interrupt number used by the board. If you do not specify an interrupt, then 5 is assumed.
 

Bus Option

The BUS option specifies the cards BUS address. This must be set  if it is anything other than the default of 21. If the card is loaded as NOTSYS, by default the card’s BUS address is set to 20.
 

SYSTEM / NOTSYS Option

The NOTSYS option is used if another computer on the bus is system controller. The option stands for "NOT SYStem controller" and causes the board to act as a Talker/Listener Device that can become active controller if control is passed to it.
 
The SYSTEM option is used to make the board act as system controller. These options are useful for overriding the hardware options on the board. HTBasic assigns a primary address of 21 to the board if it is system controller and 20 if not. The primary address may be changed using Device Setup or with CONTROL register 3  Remember: Only one system controller can be connected to the bus.
 

Base Option

The BASE option tells the driver the beginning I/O address of your board. You must specify the address in hexadecimal (with no leading "&H").
 
If the I/O address is changed, it must also be specified in the software. For example:
 
LOAD BIN "GPIB900;DEVICE 3 BASE 3A0" 
 
This statement corresponds to an I/O address of &H3B8 and the options should be set as follows:
Chip Address
7
6
5
4
3
2
1
Address Range
3B8
on
on
off
off
off
on
off
3A0-3BF
 
The default Chip Address for the HM900 board is &H02B8. Addresses in the range &H02A0 to &H02BF are used. The value the LOAD BIN statement is expecting is the lower limit of this address range, 2A0. If any address in the Address Range conflicts with other hardware installed in your computer, the address must be changed. It can be set to any address between &H0018 - &H03F8, in increments of &H20. The board uses 24 I/O addresses below and 8 above the specified address. This range is listed as the Address Range in the following table:
                                                                                         
Chip Address
7
6
5
4
3
2
1
Address Range
018
on
on
on
on
on
on
on
000-01F
038
on
on
on
on
on
on
off
020-03F
058
on
on
on
on
on
off
on
040-05F
078
on
on
on
on
on
off
off
060-07F
098
on
on
on
on
off
on
on
080-09F
0B8
on
on
on
on
off
on
off
0A0-0BF
0D8
on
on
on
on
off
off
on
0C0-0DF
0F8
on
on
on
on
off
off
off
0E0-0FF
118
on
on
on
off
on
on
on
100-11F
138
on
on
on
off
on
on
off
120-13F
158
on
on
on
off
on
off
on
140-15F
178
on
on
on
off
on
off
off
160-17F
198
on
on
on
off
off
on
on
180-19F
1B8
on
on
on
off
off
on
off
1A0-1BF
1D8
on
on
on
off
off
off
on
1C0-1DF
1F8
on
on
on
off
off
off
off
1E0-1FF
218
on
on
off
on
on
on
on
200-21F
238
on
on
off
on
on
on
off
220-23F
258
on
on
off
on
on
off
on
240-25F
278
on
on
off
on
on
off
off
260-27F
298
on
on
off
on
off
on
on
280-29F
2B8
on
on
off
on
off
on
off
2A0-2BF
2D8
on
on
off
on
off
off
on
2C0-2DF
2F8
on
on
off
on
off
off
off
2E0-2FF
318
on
on
off
off
on
on
on
300-31F
338
on
on
off
off
on
on
off
320-33F
358
on
on
off
off
on
off
on
340-35F
378
on
on
off
off
on
off
off
360-37F
398
on
on
off
off
off
on
on
380-39F
3B8
on
on
off
off
off
on
off
3A0-3BF
3D8
on
on
off
off
off
off
on
3C0-3DF
3F8
on
on
off
off
off
off
off
3E0-3FF