C Interface

This interface provides a wrapper around the C++ library for use in C and other languages. More...

Collaboration diagram for C Interface:

Modules
	Error Codes
	Error codes returned by the SCPI driver functions.
	System Control
	Functions for controlling the system, such as querying device info and updating the IP address.
	Cell Control
	Functions for controlling and measuring the cells.
	Aux IO Control
	Functions for controlling auxiliary analog and digital IO.
	Model Control
	Model control functionality.
	Device Discovery
	Functions for discovering ABSes on the network.

Typedefs
typedef void *	AbsScpiClientHandle
	ABS SCPI client handle.

Functions
const char *	AbsScpiClient_ErrorMessage (int error)
	Get an error message to describe an error code returned by the driver.
int	AbsScpiClient_Init (AbsScpiClientHandle *handle_out)
	Initialize a SCPI client.
void	AbsScpiClient_Destroy (AbsScpiClientHandle *handle)
	Destroy a SCPI client.
int	AbsScpiClient_OpenUdp (AbsScpiClientHandle handle, const char *target_ip, const char *interface_ip)
	Open a UDP connection to the ABS.
int	AbsScpiClient_OpenTcp (AbsScpiClientHandle handle, const char *target_ip)
	Open a TCP connection to the ABS.
int	AbsScpiClient_OpenSerial (AbsScpiClientHandle handle, const char *com_port, unsigned int device_id)
	Open a serial connection to one or many ABSes.
int	AbsScpiClient_OpenUdpMulticast (AbsScpiClientHandle handle, const char *interface_ip)
	Open a UDP multicast socket for broadcasting to many ABSes.
int	AbsScpiClient_SetTargetDeviceId (AbsScpiClientHandle handle, unsigned int device_id)
	Set the target device ID for communication.
int	AbsScpiClient_GetTargetDeviceId (AbsScpiClientHandle handle, unsigned int *device_id_out)
	Get the target device ID for communication.

Detailed Description

This interface provides a wrapper around the C++ library for use in C and other languages.

Function Documentation

AbsScpiClient_Destroy()

void AbsScpiClient_Destroy

(

AbsScpiClientHandle *

handle

)

Destroy a SCPI client.

Parameters

[in,out]

handle

pointer to a handle to destroy

AbsScpiClient_ErrorMessage()

const char * AbsScpiClient_ErrorMessage

(

int

error

)

Get an error message to describe an error code returned by the driver.

Returns

Null-terminated error message string.

AbsScpiClient_GetTargetDeviceId()

int AbsScpiClient_GetTargetDeviceId	(	AbsScpiClientHandle	handle,
		unsigned int *	device_id_out
	)

Get the target device ID for communication.

Only relevant for RS-485 connections.

Parameters

[in]	handle	SCPI client
[out]	device_id_out	target device ID

Returns

0 on success or a negative error code.

AbsScpiClient_Init()

int AbsScpiClient_Init

(

AbsScpiClientHandle *

handle_out

)

Initialize a SCPI client.

Must be destroyed by the caller!

Parameters

[out]

handle_out

pointer to a handle to initialize (handle should be zeroed)

Returns

0 on success or a negative error code.

AbsScpiClient_OpenSerial()

int AbsScpiClient_OpenSerial	(	AbsScpiClientHandle	handle,
		const char *	com_port,
		unsigned int	device_id
	)

Open a serial connection to one or many ABSes.

Parameters

[in]	handle	SCPI client
[in]	com_port	the serial port to open, such as COM1 or /dev/ttyS0
[in]	device_id	target device ID, 0-31, or 32+ to broadcast to all units on the bus

Returns

0 on success or a negative error code.

AbsScpiClient_OpenTcp()

int AbsScpiClient_OpenTcp	(	AbsScpiClientHandle	handle,
		const char *	target_ip
	)

Open a TCP connection to the ABS.

Note

As a consequence of TCP's design, it is inherently less deterministic than UDP. Commanding the ABS over TCP can be slower and less deterministic than UDP, so for time-sensitive applications, it's recommended to avoid TCP in favor of UDP.

Parameters

[in]	handle	SCPI client
[in]	target_ip	ABS's IP address

Returns

0 on success or a negative error code.

AbsScpiClient_OpenUdp()

int AbsScpiClient_OpenUdp	(	AbsScpiClientHandle	handle,
		const char *	target_ip,
		const char *	interface_ip
	)

Open a UDP connection to the ABS.

Parameters

[in]	handle	SCPI client
[in]	target_ip	ABS's IP address
[in]	interface_ip	address of the local interface to bind the socket to (may be NULL or empty to use any local address)

Returns

0 on success or a negative error code.

AbsScpiClient_OpenUdpMulticast()

int AbsScpiClient_OpenUdpMulticast	(	AbsScpiClientHandle	handle,
		const char *	interface_ip
	)

Open a UDP multicast socket for broadcasting to many ABSes.

Parameters

[in]	handle	SCPI client
[in]	interface_ip	IP address of the local NIC to bind to

Returns

0 on success or a negative error code.

AbsScpiClient_SetTargetDeviceId()

int AbsScpiClient_SetTargetDeviceId	(	AbsScpiClientHandle	handle,
		unsigned int	device_id
	)

Set the target device ID for communication.

Only applies to RS-485 connections.

Parameters

[in]	handle	SCPI client
[in]	device_id	target device ID, 0-31, or 32+ to broadcast to all units on the bus

Returns

0 on success or a negative error code.