KRT2-controller

This is a simple linux library for communicating with KRT2 radios by TQ-Group To use it, include files in 'src' folder in your project

Initializing the library

To initialize library first allocate memory for following data:

• struct KRT2_frequency
• struct KRT2_communication
• char status
• char error

after that call krt_init() and set:

• char* file to serial port file
• rest of the arguments as pointers to previously allocated data

Remember to check for faults!

Example:

struct KRT2_frequency frequency;
struct KRT2_communication communication;
char status;
char error;

int ret_val = krt_init("/dev/ttyS0", &frequency, &communication, &status, &error);
if (ret_val < 0) {
  printf("KRT2 initialization failed");
}

Using the library

while using the library you should call krt_check() to check for incoming transmissions from KRT2 radio krt_check() shouldn't be called less frequently than 50 ms when calling krt_check() check for any faults (returns -1)

to send any commands to KRT2 radio use following functions:

• set_frequency() to set active or standby frequency (and frequency name)
• set_new_communication_cfg() to set volume, squelch or intercom (VOX) squelch
• set_PTT() to set PTT button
• set_intercom_vol() to set intercom (VOX) volume
• set_ext_audio_vol() to set external audio input volume
• set_sidetone() to set sidetone
• set_spacing() to set channel spacing (8.33 kHz or 25 kHz)

for more detail check function comments

to get data about current radio status read KRT2_frequency and KRT2_communication structs or status and error chars (To decypher them use _MASKs defined in krt2-ctrl.h)

Example useage

To see example program check test.c in /test folder

Milestones:

• Handle incoming data from KRT2 radio
• Allow to send commands to KRT2 radio
• Create example program
• Remove need to call krt_check manually
• Add support for receive only commands in KRT2 radio