setting uart baud rate... to connect to a modem and get PPP connection using K60

[chandrasekarkan]

Hi ....

            I have a custom K60 board, UART2 has been interfaced to a GSM modem. I have enabled "ttyc:" in the user config so the device has got installed in the queue.

I want it to operate in "NON_BLOCKING" mode with no ECHO.  When I try to write a string Eg: "AT" on the port it only sends the First byte 'A'.

Also my  ioctl "GET_BAUD" gives me "536845072" as baud rate... what should I do to correct this...

User Config:

#define BSPCFG_ENABLE_TTYC

1

here is my code

MQX_FILE_PTR

modemPortFp=NULL;

modemPortFp = fopen(MODEM_PORT, NULL);

    if( modemPortFp != NULL)

    {

	printf("\nUART 2 Init success !\n");

    }

    else

printf("\nUART 2 Init Failed !\n");

uartParams = 0;

    if(ioctl(modemPortFp, IO_IOCTL_SERIAL_GET_BAUD, &uartParams) != 0)

printf("\nIoctl call to Get Baud failed!");

    else

printf("\nDefault Baud = %i", &uartParams);

************************************************************************************************************************

on console I see "Default Baud = 536845072"

[chandrasekarkan · Accepted solution]

Enabled "ITTYC" in user_config.h and changed fopen("ttyc:", NULL) to fopen("ittyc", NULL)... this did the trick for me...

Now I am able to communicate with modem and get valid response for AT commands

[Monica]

Thanks for sharing with us, Chandra!

Keep up with the hard work.

Best,

Monica.