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c_fttypes

Yannik Friedrich edited this page Nov 22, 2022 · 1 revision
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C Common types

The fttypes.h header defines a range of useful types and values the C interface relies on. It includes the connector types, sensor types, measurement modes and many more.

Content
ftobjects_connections
ftinput_modes
ftinputs_components
ft_txt_mode
ft_event
ft_bevent
ft_faults_flag

ftobjects_connection

This enum defines values for all connectors of the TXT 4.0. These values are used in the allocation of devices.

Name Value Connector
ftdev_unknown 0 unknown connector
ftdev_txt 1 TXT itself
ftdev_i1 2 I1
ftdev_i2 3 I2
ftdev_i3 4 I3
ftdev_i4 5 I4
ftdev_i5 6 I5
ftdev_i6 7 I6
ftdev_i7 8 I7
ftdev_i8 9 I8
ftdev_o1 10 O1
ftdev_m1 10 M1
ftdev_o2 11 O2
ftdev_o3 12 O3
ftdev_m2 12 M2
ftdev_o4 13 O4
ftdev_o5 14 O5
ftdev_m3 14 M3
ftdev_o6 15 O6
ftdev_o7 16 O7
ftdev_m4 16 M4
ftdev_o8 17 O8
ftdev_c1 18 C1
ftdev_c2 19 C2
ftdev_c3 20 C3
ftdev_c4 21 C4
ftdev_s1 22 S1
ftdev_s2 23 S2
ftdev_s3 24 S3
ftdev_max 25 max connectors

ftinput_modes

This enum defines the measurement modes and resolutions for input devices. These are used when manually allocating a sensor and are returned by the function ftop_alloc_mode.

Name Value Description
ftinp_unknown 0 unconfigured input
ftinp_active 0 active input
ftinp_passive 1 passive input
ftinp_digital 2 digital input
ftinp_analog 4 analog input
ftinp_ultrasonic 8 ultrasonic input
ftinp_r1 0 normal range (0 - 5 V)
ftinp_r2 16 extended range (0 - 9 V)

ftinputs_components

The ftinputs_components enum defines the different input devices that are supported by the C-API. These are used when manually allocating an input device. Also, the function ft_alloc_code returns these values to characterize the given sensor.

Name Value Description
ftinput_unknown 0 unconfigured input
ftinput_switch 1 switch input
ftinput_voltage 2 voltage input
ftinput_resistor 3 resistor input
ftinput_termistor 4 thermistor input
ftinput_color_sensor 5 color sensor input
ftinput_trail_follower 6 trail follower input
ftinput_ultrasonic 7 ultrasonic input
ftinput_digital 8 digital input
ftinput_encoder 9 encoder
ftinput_max 10 max input components

ft_txt_mode

The ft_txt_mode enum defines the different communication modes the TXT 4.0 can be set to. They are used by the function ftop_txt_mode.

Name Value Description
ft_txt_single 0 single mode
ft_txt_master 1 master mode
ft_txt_slave 2 slave mode

ft_event

This enum defines events for different TXT updates.

Name Value Description
ft_event_info_update 0 common info update
ft_event_values_update 1 value update
ft_event_slaves_update 2 slaves set update
ft_event_faults_update 3 faults update
ft_event_max 4 max event

ft_bevents

The enum ft_bevents defines event bits based on ft_event. These are used to build event bit masks for event listening via ftop_wait_event().

Name Value Description
ft_bevent_info_update 1 common info update
ft_bevent_values_update 2 value update
ft_bevent_slaves_update 4 slaves set update
ft_bevent_faults_update 8 faults update

ft_faults_flags

The enum ft_faults_flags defines various TXT board related faults.

Name Value Description
FTF_OVP 2 overvoltage
FTF_UVLO 4 undervoltage lock-out
FTF_OCP 8 overcurrent
FTF_OLD 16 open load
FTF_OTW 32 overtemperature warning
FTF_OTSD 64 overtemperature shutdown
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