PCI-1202

Supported Models PCI-1002 PCI-1202 PCI-1602 PCI-1800/1802 PCI-P16R16/P16C16/P16POR16 PCI-P8R8 PCI-TMC12

Source Code Tour for IxPCI
Device ID
Device File
ioctl Commands
Data Structures
Registers
Examples

Device ID

PCI_1202

Device File

/dev/ixpcin

The n is the IXPCI device number.

ioctl Commands

IXPCI_GET_INFO

Retrieve a device's information, and put it into the ixpci_devinfo (ixpci_devinfo_t) structure. Example: list.c.

IXPCI_READ_REG

Read a specified register's value, and put the value into the ixpci_reg (ixpci_reg_t) structure. Example: ixpci1202/dio.c

IXPCI_WRITE_REG

Write a given value to a specified register. Example: ixpci1202/dio.c

IXPCI_RESET

Reset device.

• Stop the timer0/1/2.
• Reset the control register.
  • A/D channel 0, Gain control PGA = 1.
  • Input range control = PGA (+/- 5V.)
  • Reset the MagicScan controller.
  • Assert the MagicScan handshake control bit (bit-13.)
  • Clear FIFO.
• Clear DO to 0.
• Clear DA1/2 to 0.

Example: ixpci1202/reset.c

IXPCI_TIME_SPAN    IXPCI_BLOCK    IXPCI_DELAY    IXPCI_WAIT

IXPCI_TIME_SPAN uses the 8254 counter-2 to be the machine-indepent-timer by the internal 8 MHz clock. Command will be blocked before the countering has finished. The maximum counter value is 8190 micro-seconds. IXPCI_TIME_SPAN, IXPCI_BLOCK, IXPCI_DELAY, and IXPCI_WAIT all are identical. Example: ixpci1202/time_span.c.

Data Structures

ixpci_devinfo_t

The data type of structure ixpci_devinfo which contains a device's id, base address, and so on. Example: list.c

ixpci_reg_t

The data type of structure ixpci_reg which contains a register's id and value. Example: pci1202/port.c

Registers

R=Readable  W=Writable

Available registers that can be used in structure ixpci_reg for PCI-1202.

IXPCI_8254C0 R W

8254 Counter 0.

IXPCI_8254C1 R W

8254 Counter 0.

IXPCI_8254C2 R W

8254 Counter 2.

IXPCI_8254CR R W

8254 Control Register.

IXPCI_CR R W

Control Register.

IXPCI_SR R W

Status Register.

IXPCI_ADST R W

AD Software Trigger.

IXPCI_DI R W

Digital Input.

IXPCI_DO R W

Digital Output.

IXPCI_AD R W

Analog to Digital Port.

IXPCI_DA1 R W

Digital to Analog Channel 1.

IXPCI_DA2 R W

Digital to Analog Channel 2.

Examples

list.c

An example for ioctl command IXPCI_GET_INFO.

ixpci1202/ai_soft.c

An example for analog input by software trigger.

ixpci1202/dio.c

An example for reading and writing registers by ioctl commands IXPCI_READ_REG and IXPCI_WRITE_REG.

ixpci1202/reset.c

An example for ioctl command IXPCI_RESET.

pci1202/time_span.c

An example for ioctl command IXPCI_TIME_SPAN.