IPC Module - Analog Inputs Service

This page contains documentation of the Analog Inputs API.

To measure voltage on a signal (e.g. AIN_5), the user has to request the service, configure the channel and subscribe to the publication of values.

Messages

message analog_inputs_request_req

Request the analog inputs service.

message analog_inputs_request_rsp

Parameters:: result (enum analog_inputs_result) – Result of the operation

Analog inputs request result.

message analog_inputs_release_req_norsp

Release analog inputs service for given user user.

message analog_inputs_configure_channel_req

Parameters:

channel (enum analog_inputs_channels) – Which channel of the ADC device to configure
mode (enum analog_inputs_mode) – mode can be off/voltage/frequency
threshold (int16) – Reserved for future use

Return message:

analog_inputs_configure_channel_rsp

Request to configure one analog inputs channel.

message analog_inputs_configure_channel_rsp

Parameters:

Sent in response to analog_inputs_configure_channel_req message.

message analog_inputs_values_publish_ind

Parameters:: values (int32[16]) – Values for all configured input channels. The values are mV or Hz for voltage and frequency values, respectively. INT32_MIN means that the channel is turned off. The values are indexed by the ref logical_channels [“logical channels”].

Analog input event. Sent once per second to all subscribers.

message analog_inputs_values_subscribe_req: Subscribe to analog_inputs_values_publish_ind messages

message analog_inputs_values_subscribe_rsp

Result from analog_inputs_values_subscribe_req

message analog_inputs_values_unsubscribe_req_norsp: Unsubscribe from analog_inputs_values_publish_ind messages

enum analog_inputs_result

Result codes

Constant	Value	Description
OK	0	OK
ERROR	1	Error

enum analog_inputs_channels

Logical channels. anchor logical_channels These channels (AIN_1 - AIN_8) correspond to physical pins in the main connector.

enum analog_inputs_mode

Possible measurement modes for analog inputs.