FX30 - UART on IoT expansion card slot

IoT Gateways FX30
4

Hi tomalex,

The problem is solved when I updated firmware to FX30 R13.1.2.004,
https://source.sierrawireless.com/resources/airlink/software_downloads/fx30-firmware/fx30-firmware/

Below IoT expansion slot maping:
FX30 IoT connector Interface -> FX30 Resource
GPIO1 -> GPIO 42
GPIO2 -> GPIO 33
GPIO3 -> GPIO 13
GPIO4 -> GPIO 8
IOT_DETECT -> GPIO 25
USB Hub on HSIC WP interface, mounted on ttyUSB0
SDIO -> SDIO
UART -> UART2
SPI -> SPI1
ADC -> ADC0
PCM -> PCM
I2C -> I2C1

I made changes in port setting to:

void serial_SetPortSettings()
{
    tcgetattr(tty_fd,&oldtio); /* save current port settings */
    bzero(&newtio, sizeof(newtio));
    newtio.c_cflag = B19200 | CRTSCTS | CS8 | CLOCAL | CREAD;
    newtio.c_iflag = IGNPAR;
    newtio.c_oflag = 0;
    newtio.c_lflag = 0;
    newtio.c_cc[VTIME]    = 0;
    newtio.c_cc[VMIN]     = 1;
    tcflush(tty_fd, TCIFLUSH);
    tcsetattr(tty_fd,TCSANOW,&newtio);
}